unix: handle out of memory in iface name copy (#4724)

Allocate storage upfront, that way we can never run out of memory
halfway through processing the interface list.

Fixes: https://github.com/libuv/libuv/issues/4723

.github/dependabot.yml

@@ -0,0 +1,7 @@
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/stale.yml

@@ -1,23 +0,0 @@
-# Number of days of inactivity before an issue becomes stale
-daysUntilStale: 28
-# Number of days of inactivity before a stale issue is closed
-# Set to false to disable. If disabled, issues still need to be closed
-# manually, but will remain marked as stale.
-daysUntilClose: false
-# Issues with these labels will never be considered stale
-exemptLabels:
-  - v2
-  - enhancement
-  - good first issue
-  - feature-request
-  - doc
-  - bug
-  - not-stale
-# Label to use when marking an issue as stale
-staleLabel: stale
-# Comment to post when marking an issue as stale. Set to `false` to disable
-markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. Thank you for your contributions.
-# Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false

.github/workflows/CI-docs.yml

@@ -0,0 +1,25 @@
+name: CI-docs
+
+on:
+  pull_request:
+    paths:
+      - 'docs/**'
+      - '!docs/code/**'
+      - '.github/workflows/CI-docs.yml'
+
+jobs:
+  docs-src:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.9'
+          cache: 'pip' # caching pip dependencies
+      - run: pip install -r docs/requirements.txt
+      - name: html
+        run: |
+          make -C docs html
+      - name: linkcheck
+        run: |
+          make -C docs linkcheck

.github/workflows/CI-sample.yml

@@ -0,0 +1,33 @@
+name: ci-sample
+
+on:
+  pull_request:
+    paths:
+      - '**'
+      - '!docs/**'
+      - '!.**'
+      - 'docs/code/**'
+      - '.github/workflows/CI-sample.yml'
+  push:
+    branches:
+      - v[0-9].*
+      - master
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+    runs-on: ${{matrix.os}}
+    steps:
+      - uses: actions/checkout@v4
+      - name: setup
+        run: cmake -E make_directory ${{runner.workspace}}/libuv/docs/code/build
+      - name: configure
+        # you may like use Ninja on unix-like OS, but for windows, the only easy way is to use Visual Studio if you want Ninja
+        run: cmake ..
+        working-directory: ${{runner.workspace}}/libuv/docs/code/build
+      - name: build
+        run: cmake --build .
+        working-directory: ${{runner.workspace}}/libuv/docs/code/build

.github/workflows/CI-unix.yml

@@ -0,0 +1,182 @@
+name: CI-unix
+
+on:
+  pull_request:
+    paths:
+      - '**'
+      - '!docs/**'
+      - '!src/win/**'
+      - '!.**'
+      - '.github/workflows/CI-unix.yml'
+  push:
+    branches:
+      - v[0-9].*
+      - master
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: configure
+        run: |
+          ./autogen.sh
+          mkdir build
+          (cd build && ../configure)
+      - name: distcheck
+        run: |
+          make -C build distcheck
+
+  build-android:
+    runs-on: ubuntu-latest
+    env:
+      ANDROID_AVD_HOME: /root/.android/avd
+    steps:
+      - uses: actions/checkout@v4
+      - name: Envinfo
+        run: npx envinfo
+      - name: Enable KVM
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+      - name: Build and Test
+        uses: reactivecircus/android-emulator-runner@v2
+        with:
+          api-level: 30
+          arch: x86_64
+          target: google_apis
+          ram-size: 2048M
+          emulator-options: -no-audio -no-window -gpu off -no-boot-anim -netdelay none -netspeed full -writable-system -no-snapshot-save -no-snapshot-load -no-snapshot
+          disable-animations: true
+          script: |
+            echo "::group::Configure"
+            cmake -B build -S . -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DANDROID_ABI="x86_64" -DANDROID_PLATFORM=android-30
+            echo "::endgroup::"
+
+            echo "::group::Build"
+            cmake --build build
+
+            ## Correct some ld bugs that cause problems with libuv tests
+            wget "https://github.com/termux/termux-elf-cleaner/releases/download/v2.2.1/termux-elf-cleaner" -P build
+            chmod a+x build/termux-elf-cleaner
+            build/termux-elf-cleaner --api-level 30 ./build/uv_run_tests
+            build/termux-elf-cleaner --api-level 30 ./build/uv_run_tests_a
+
+            adb shell "su 0 setenforce 0" # to allow some syscalls like link, chmod, etc.
+
+            ## Push the build and test fixtures to the device
+            adb push build /data/local/tmp
+            adb shell mkdir /data/local/tmp/build/test
+            adb push test/fixtures /data/local/tmp/build/test
+            echo "::endgroup::"
+
+            ## Run the tests
+            file build/uv_run_tests_a
+            adb shell "cd /data/local/tmp/build && env UV_TEST_TIMEOUT_MULTIPLIER=5 ./uv_run_tests_a"
+
+  build-macos:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-13, macos-14]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Envinfo
+        run: npx envinfo
+      - name: Disable Firewall
+        run: |
+          /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
+          sudo defaults write /Library/Preferences/com.apple.alf globalstate -int 0
+          /usr/libexec/ApplicationFirewall/socketfilterfw --getglobalstate
+      - name: Setup
+        run: |
+          brew install ninja automake libtool
+      - name: Configure
+        run: |
+          mkdir build
+          cd build
+          cmake .. -DBUILD_TESTING=ON -G Ninja
+      - name: Build
+        run: |
+          cmake --build build
+          ls -lh
+      - name: platform_output
+        run: |
+          ./build/uv_run_tests platform_output
+      - name: platform_output_a
+        run: |
+          ./build/uv_run_tests_a platform_output
+      - name: Test
+        run: |
+          cd build && ctest -V
+      - name: Autotools configure
+        if: always()
+        run: |
+          ./autogen.sh
+          mkdir build-auto
+          (cd build-auto && ../configure)
+          make -C build-auto -j4
+
+  build-ios:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-13, macos-14]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Configure
+        run: |
+          mkdir build-ios
+          cd build-ios
+          cmake .. -GXcode -DCMAKE_SYSTEM_NAME:STRING=iOS -DCMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED:BOOL=NO -DCMAKE_CONFIGURATION_TYPES:STRING=Release
+      - name: Build
+        run: |
+          cmake --build build-ios
+          ls -lh build-ios
+
+  build-cross-qemu:
+    runs-on: ubuntu-24.04
+    name: build-cross-qemu-${{ matrix.config.target }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {target: arm,                 toolchain: gcc-arm-linux-gnueabi,       cc: arm-linux-gnueabi-gcc,      qemu: qemu-arm      }
+          - {target: armhf,               toolchain: gcc-arm-linux-gnueabihf,     cc: arm-linux-gnueabihf-gcc,    qemu: qemu-arm      }
+          - {target: aarch64,             toolchain: gcc-aarch64-linux-gnu,       cc: aarch64-linux-gnu-gcc,      qemu: qemu-aarch64  }
+          - {target: riscv64,             toolchain: gcc-riscv64-linux-gnu,       cc: riscv64-linux-gnu-gcc,      qemu: qemu-riscv64  }
+          - {target: ppc,                 toolchain: gcc-powerpc-linux-gnu,       cc: powerpc-linux-gnu-gcc,      qemu: qemu-ppc      }
+          - {target: ppc64,               toolchain: gcc-powerpc64-linux-gnu,     cc: powerpc64-linux-gnu-gcc,    qemu: qemu-ppc64    }
+          - {target: ppc64le,             toolchain: gcc-powerpc64le-linux-gnu,   cc: powerpc64le-linux-gnu-gcc,  qemu: qemu-ppc64le  }
+          - {target: s390x,               toolchain: gcc-s390x-linux-gnu,         cc: s390x-linux-gnu-gcc,        qemu: qemu-s390x    }
+          - {target: mips,                toolchain: gcc-mips-linux-gnu,          cc: mips-linux-gnu-gcc,         qemu: qemu-mips     }
+          - {target: mips64,              toolchain: gcc-mips64-linux-gnuabi64,   cc: mips64-linux-gnuabi64-gcc,  qemu: qemu-mips64   }
+          - {target: mipsel,              toolchain: gcc-mipsel-linux-gnu,        cc: mipsel-linux-gnu-gcc,       qemu: qemu-mipsel   }
+          - {target: mips64el,            toolchain: gcc-mips64el-linux-gnuabi64, cc: mips64el-linux-gnuabi64-gcc,qemu: qemu-mips64el }
+          - {target: arm (u64 slots),     toolchain: gcc-arm-linux-gnueabi,       cc: arm-linux-gnueabi-gcc,      qemu: qemu-arm      }
+          - {target: aarch64 (u64 slots), toolchain: gcc-aarch64-linux-gnu,       cc: aarch64-linux-gnu-gcc,      qemu: qemu-aarch64  }
+          - {target: ppc (u64 slots),     toolchain: gcc-powerpc-linux-gnu,       cc: powerpc-linux-gnu-gcc,      qemu: qemu-ppc      }
+          - {target: ppc64 (u64 slots),   toolchain: gcc-powerpc64-linux-gnu,     cc: powerpc64-linux-gnu-gcc,    qemu: qemu-ppc64    }
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install qemu and ${{ matrix.config.toolchain }}
+        run: |
+          sudo apt update
+          sudo apt install qemu-user qemu-user-binfmt ${{ matrix.config.toolchain }} -y
+      - name: Configure with ${{ matrix.config.cc }}
+        run: |
+          mkdir build
+          cd build
+          cmake .. -DBUILD_TESTING=ON -DQEMU=ON -DCMAKE_C_COMPILER=${{ matrix.config.cc }}
+      - name: Build
+        run: |
+          cmake --build build
+          ls -lh build
+      - name: Test
+        run: |
+          ${{ matrix.config.qemu }} build/uv_run_tests_a

.github/workflows/CI-win.yml

@@ -0,0 +1,129 @@
+name: CI-win
+
+on:
+  pull_request:
+    paths:
+      - '**'
+      - '!docs/**'
+      - '!src/unix/**'
+      - '!.**'
+      - '.github/workflows/CI-win.yml'
+  push:
+    branches:
+      - v[0-9].*
+      - master
+
+jobs:
+  build-windows:
+    runs-on: windows-${{ matrix.config.server }}
+    name: build-${{ join(matrix.config.*, '-') }}
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {toolchain: Visual Studio 16 2019, arch: Win32, server: 2019}
+          - {toolchain: Visual Studio 16 2019, arch: x64, server: 2019}
+          - {toolchain: Visual Studio 17 2022, arch: Win32, server: 2022}
+          - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022}
+          - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022, config: ASAN}
+          - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022, config: UBSAN}
+          - {toolchain: Visual Studio 17 2022, arch: arm64, server: 2022}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build
+        run:
+          cmake -S . -B build -DBUILD_TESTING=ON
+            -G "${{ matrix.config.toolchain }}" -A ${{ matrix.config.arch }}
+            ${{ matrix.config.config == 'ASAN' && '-DASAN=on -DCMAKE_MSVC_RUNTIME_LIBRARY=MultiThreaded' || '' }}
+
+          cmake --build build --config RelWithDebInfo
+
+          ${{ matrix.config.config == 'ASAN' && 'Copy-Item -Path "build\\*.exe" -Destination "build\\RelWithDebInfo\\"' || '' }}
+
+          ${{ matrix.config.config == 'ASAN' && 'Copy-Item -Path "build\\*.dll" -Destination "build\\RelWithDebInfo\\"' || '' }}
+
+          ls -l build
+          
+          ls -l build\\RelWithDebInfo
+      - name: platform_output_a
+        if: ${{ matrix.config.arch != 'arm64' }}
+        shell: cmd
+        run:
+          build\\RelWithDebInfo\\uv_run_tests_a.exe platform_output
+      - name: platform_output
+        if: ${{ matrix.config.arch != 'arm64' }}
+        shell: cmd
+        run:
+          build\\RelWithDebInfo\\uv_run_tests.exe platform_output
+      - name: Test
+        # only valid with libuv-master with the fix for
+        # https://github.com/libuv/leps/blob/master/005-windows-handles-not-fd.md
+        if: ${{ matrix.config.config != 'ASAN' && matrix.config.arch != 'arm64' }}
+        shell: cmd
+        run:
+          cd build
+
+          ctest -C RelWithDebInfo -V
+      - name: Test only static
+        if: ${{ matrix.config.config == 'ASAN' && matrix.config.arch != 'arm64' }}
+        shell: cmd
+        run:
+          build\\RelWithDebInfo\\uv_run_tests_a.exe
+
+  build-mingw:
+    runs-on: ubuntu-latest
+    name: build-mingw-${{ matrix.config.arch }}
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {arch: i686,   server: 2022, libgcc: dw2 }
+          - {arch: x86_64, server: 2022, libgcc: seh }
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install mingw32 environment
+        run: |
+          sudo apt update
+          sudo apt install mingw-w64 ninja-build -y
+      - name: Build
+        run: |
+          cmake -S . -B build -G Ninja -DHOST_ARCH=${{ matrix.config.arch }} -DBUILD_TESTING=ON -DCMAKE_TOOLCHAIN_FILE=cmake-toolchains/cross-mingw32.cmake
+          cmake --build build
+          cmake --install build --prefix "`pwd`/build/usr"
+          mkdir -p build/usr/test build/usr/bin
+          cp -av test/fixtures build/usr/test
+          cp -av build/uv_run_tests_a.exe build/uv_run_tests.exe build/uv_run_tests_a_no_ext build/uv_run_tests_no_ext \
+             `${{ matrix.config.arch }}-w64-mingw32-gcc -print-file-name=libgcc_s_${{ matrix.config.libgcc }}-1.dll` \
+             `${{ matrix.config.arch }}-w64-mingw32-gcc -print-file-name=libwinpthread-1.dll` \
+             `${{ matrix.config.arch }}-w64-mingw32-gcc -print-file-name=libatomic-1.dll` \
+             build/usr/bin
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: mingw-${{ matrix.config.arch }}
+          path: build/usr/**/*
+          retention-days: 2
+
+  test-mingw:
+    runs-on: windows-${{ matrix.config.server }}
+    name: test-mingw-${{ matrix.config.arch }}
+    needs: build-mingw
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {arch: i686,   server: 2022}
+          - {arch: x86_64, server: 2022}
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@v4
+        with:
+          name: mingw-${{ matrix.config.arch }}
+      - name: Test
+        shell: cmd
+        run: |
+          bin\uv_run_tests_a.exe
+      - name: Test
+        shell: cmd
+        run: |
+          bin\uv_run_tests.exe

.github/workflows/CI.yml

@@ -1,118 +0,0 @@
-name: CI
-
-on: [push, pull_request]
-
-jobs:
-  build-windows:
-    runs-on: windows-${{ matrix.config.server }}
-    name: build-${{ matrix.config.toolchain}}-${{ matrix.config.arch}}
-    strategy:
-      fail-fast: false
-      matrix:
-        config:
-          - {toolchain: Visual Studio 15 2017, arch: Win32, server: 2016}
-          - {toolchain: Visual Studio 15 2017, arch: x64, server: 2016}
-          - {toolchain: Visual Studio 16 2019, arch: Win32, server: 2019}
-          - {toolchain: Visual Studio 16 2019, arch: x64, server: 2019}
-          - {toolchain: Visual Studio 17 2022, arch: Win32, server: 2022}
-          - {toolchain: Visual Studio 17 2022, arch: x64, server: 2022}
-    steps:
-      - uses: actions/checkout@v2
-      - name: Envinfo
-        run: npx envinfo
-      - name: Build
-        shell: cmd
-        run: |
-          mkdir -p build
-          cd build
-          cmake .. -DBUILD_TESTING=ON -G "${{ matrix.config.toolchain }}" -A ${{ matrix.config.arch }}
-          cmake --build .
-      - name: Test
-        shell: cmd
-        run: |
-          cd build
-          ctest -C Debug --output-on-failure
-
-  build-android:
-    runs-on: ubuntu-latest
-    container: reactnativecommunity/react-native-android:2020-5-20
-    steps:
-      - uses: actions/checkout@v2
-      - name: Envinfo
-        run: npx envinfo
-      - name: Build android arm64
-        # see build options you can use in https://developer.android.com/ndk/guides/cmake
-        run: |
-          mkdir build && cd build
-          $ANDROID_HOME/cmake/3.10.2.4988404/bin/cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk/20.0.5594570/build/cmake/android.toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DANDROID_ABI="arm64-v8a" -DANDROID_PLATFORM=android-21 ..
-          $ANDROID_HOME/cmake/3.10.2.4988404/bin/cmake --build .
-
-  build-macos:
-    runs-on: macos-10.15
-    steps:
-      - uses: actions/checkout@v2
-      - name: Envinfo
-        run: npx envinfo
-      - name: Setup
-        run: |
-          brew install ninja
-      - name: Build
-        run: |
-          mkdir build
-          cd build && cmake .. -DBUILD_TESTING=ON -G Ninja
-          cmake --build .
-          ls -lh
-      - name: Test
-        run: |
-          cd build && ctest -V
-
-  build-cross-qemu:
-    runs-on: ubuntu-latest
-    name: build-cross-qemu-${{ matrix.config.target }}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        config:
-          - {target: arm,     toolchain: gcc-arm-linux-gnueabi,     cc: arm-linux-gnueabi-gcc,      qemu: qemu-arm-static     }
-          - {target: armhf,   toolchain: gcc-arm-linux-gnueabihf,   cc: arm-linux-gnueabihf-gcc,    qemu: qemu-arm-static     }
-          - {target: aarch64, toolchain: gcc-aarch64-linux-gnu,     cc: aarch64-linux-gnu-gcc,      qemu: qemu-aarch64-static }
-          - {target: riscv64, toolchain: gcc-riscv64-linux-gnu,     cc: riscv64-linux-gnu-gcc,      qemu: qemu-riscv64-static }
-          - {target: ppc,     toolchain: gcc-powerpc-linux-gnu,     cc: powerpc-linux-gnu-gcc,      qemu: qemu-ppc-static     }
-          - {target: ppc64,   toolchain: gcc-powerpc64-linux-gnu,   cc: powerpc64-linux-gnu-gcc,    qemu: qemu-ppc64-static   }
-          - {target: ppc64le, toolchain: gcc-powerpc64le-linux-gnu, cc: powerpc64le-linux-gnu-gcc,  qemu: qemu-ppc64le-static }
-          - {target: s390x,   toolchain: gcc-s390x-linux-gnu,       cc: s390x-linux-gnu-gcc,        qemu: qemu-s390x-static   }
-          - {target: mips,    toolchain: gcc-mips-linux-gnu,          cc: mips-linux-gnu-gcc,         qemu: qemu-mips-static     }
-          - {target: mips64,  toolchain: gcc-mips64-linux-gnuabi64,   cc: mips64-linux-gnuabi64-gcc,  qemu: qemu-mips64-static   }
-          - {target: mipsel,  toolchain: gcc-mipsel-linux-gnu,        cc: mipsel-linux-gnu-gcc,       qemu: qemu-mipsel-static   }
-          - {target: mips64el,toolchain: gcc-mips64el-linux-gnuabi64, cc: mips64el-linux-gnuabi64-gcc,qemu: qemu-mips64el-static }
-          - {target: alpha,   toolchain: gcc-alpha-linux-gnu,       cc: alpha-linux-gnu-gcc,        qemu: qemu-alpha-static   }
-          - {target: arm (u64 slots),     toolchain: gcc-arm-linux-gnueabi,     cc: arm-linux-gnueabi-gcc,      qemu: qemu-arm-static}
-          - {target: aarch64 (u64 slots), toolchain: gcc-aarch64-linux-gnu,     cc: aarch64-linux-gnu-gcc,      qemu: qemu-aarch64-static}
-          - {target: ppc (u64 slots),     toolchain: gcc-powerpc-linux-gnu,     cc: powerpc-linux-gnu-gcc,      qemu: qemu-ppc-static}
-          - {target: ppc64 (u64 slots),   toolchain: gcc-powerpc64-linux-gnu,   cc: powerpc64-linux-gnu-gcc,    qemu: qemu-ppc64-static}
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Install QEMU
-        # this ensure install latest qemu on ubuntu, apt get version is old
-        env:
-          QEMU_SRC: "http://archive.ubuntu.com/ubuntu/pool/universe/q/qemu"
-          QEMU_VER: "qemu-user-static_4\\.2-.*_amd64.deb$"
-        run: |
-          DEB=`curl -s $QEMU_SRC/ | grep -o -E 'href="([^"#]+)"' | cut -d'"' -f2 | grep $QEMU_VER | tail -1`
-          wget $QEMU_SRC/$DEB
-          sudo dpkg -i $DEB
-      - name: Install ${{ matrix.config.toolchain }}
-        run: |
-          sudo apt update
-          sudo apt install ${{ matrix.config.toolchain }} -y
-      - name: Build
-        run: |
-          mkdir build
-          cd build && cmake .. -DBUILD_TESTING=ON -DQEMU=ON -DCMAKE_C_COMPILER=${{ matrix.config.cc }}
-          cmake --build .
-          ls -lh
-      - name: Test
-        run: |
-          ${{ matrix.config.qemu }} build/uv_run_tests_a

.github/workflows/sanitizer.yml

@@ -1,26 +1,128 @@
 name: Sanitizer checks
 
-on: [push, pull_request]
+on:
+  pull_request:
+    paths:
+      - '**'
+      - '!docs/**'
+      - '!.**'
+      - '.github/workflows/sanitizer.yml'
+  push:
+    branches:
+      - v[0-9].*
+      - master
 
 jobs:
-  sanitizers:
-    runs-on: ubuntu-latest
+  sanitizers-linux:
+    runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup
         run: |
           sudo apt-get install ninja-build
       - name: Envinfo
         run: npx envinfo
-      - name: TSAN
+
+      # [AM]SAN fail on newer kernels due to a bigger PIE slide
+      - name: Disable ASLR
         run: |
-          mkdir build-tsan
-          (cd build-tsan && cmake .. -G Ninja -DBUILD_TESTING=ON -DTSAN=ON -DCMAKE_BUILD_TYPE=Release)
-          cmake --build build-tsan
-          ./build-tsan/uv_run_tests_a || true # currently permit failures
-      - name: ASAN
+          sudo sysctl -w kernel.randomize_va_space=0
+
+      - name: ASAN Build
         run: |
           mkdir build-asan
           (cd build-asan && cmake .. -G Ninja -DBUILD_TESTING=ON -DASAN=ON -DCMAKE_BUILD_TYPE=Debug)
           cmake --build build-asan
+      - name: ASAN Test
+        run: |
           ./build-asan/uv_run_tests_a
+
+      - name: MSAN Build
+        run: |
+          mkdir build-msan
+          (cd build-msan && cmake .. -G Ninja -DBUILD_TESTING=ON -DMSAN=ON -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang)
+          cmake --build build-msan
+      - name: MSAN Test
+        run: |
+          ./build-msan/uv_run_tests_a
+
+      - name: TSAN Build
+        run: |
+          mkdir build-tsan
+          (cd build-tsan && cmake .. -G Ninja -DBUILD_TESTING=ON -DTSAN=ON -DCMAKE_BUILD_TYPE=Release)
+          cmake --build build-tsan
+      - name: TSAN Test
+        # Note: path must be absolute because some tests chdir.
+        # TSan exits with an error when it can't find the file.
+        run: |
+          env TSAN_OPTIONS="suppressions=$PWD/tsansupp.txt" ./build-tsan/uv_run_tests_a
+
+      - name: UBSAN Build
+        run: |
+          mkdir build-ubsan
+          (cd build-ubsan && cmake .. -G Ninja -DBUILD_TESTING=ON -DUBSAN=ON -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang)
+          cmake --build build-ubsan
+      - name: UBSAN Test
+        run: |
+          ./build-ubsan/uv_run_tests_a
+
+  sanitizers-macos:
+    runs-on: macos-13
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Envinfo
+        run: npx envinfo
+
+      - name: ASAN Build
+        run: |
+          mkdir build-asan
+          (cd build-asan && cmake .. -DBUILD_TESTING=ON -DASAN=ON -DCMAKE_BUILD_TYPE=Debug)
+          cmake --build build-asan
+      - name: ASAN Test
+        run: |
+          ./build-asan/uv_run_tests_a
+
+      - name: TSAN Build
+        run: |
+          mkdir build-tsan
+          (cd build-tsan && cmake .. -DBUILD_TESTING=ON -DTSAN=ON -DCMAKE_BUILD_TYPE=Release)
+          cmake --build build-tsan
+      - name: TSAN Test
+        run: |
+          ./build-tsan/uv_run_tests_a
+
+      - name: UBSAN Build
+        run: |
+          mkdir build-ubsan
+          (cd build-ubsan && cmake .. -DBUILD_TESTING=ON -DUBSAN=ON -DCMAKE_BUILD_TYPE=Debug)
+          cmake --build build-ubsan
+      - name: UBSAN Test
+        run: |
+          ./build-ubsan/uv_run_tests_a
+
+  sanitizers-windows:
+    runs-on: windows-2022
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup
+        run: |
+          choco install ninja
+
+      # Note: clang shipped with VS2022 has an issue where the UBSAN runtime doesn't link.
+      - name: Install LLVM and Clang
+        uses: KyleMayes/install-llvm-action@v2
+        with:
+          version: "17"
+
+      - name: Envinfo
+        run: npx envinfo
+
+      - name: UBSAN Build
+        run: |
+          mkdir build-ubsan
+          cmake -B build-ubsan -G Ninja -DBUILD_TESTING=ON -DUBSAN=ON -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_COMPILER=clang
+          cmake --build build-ubsan
+      - name: UBSAN Test
+        run: |
+          ./build-ubsan/uv_run_tests_a

.gitignore

@@ -7,9 +7,11 @@
 *.sdf
 *.suo
 .vs/
+.vscode/
 *.VC.db
 *.VC.opendb
 core
+.cache
 vgcore.*
 .buildstamp
 .dirstamp
@@ -74,3 +76,5 @@ cmake-build-debug/
 
 # make dist output
 libuv-*.tar.*
+/dist.libuv.org/
+/libuv-release-tool/

.mailmap

@@ -4,6 +4,7 @@ Aaron Bieber <qbit@deftly.net> <deftly@gmail.com>
 Alan Gutierrez <alan@prettyrobots.com> <alan@blogometer.com>
 Andrius Bentkus <andrius.bentkus@gmail.com> <toxedvirus@gmail.com>
 Andy Fiddaman <andy@omniosce.org> <omnios@citrus-it.co.uk>
+Andy Pan <panjf2000@gmail.com> <i@andypan.me>
 Bert Belder <bertbelder@gmail.com> <i@bertbelder.com>
 Bert Belder <bertbelder@gmail.com> <info@2bs.nl>
 Bert Belder <bertbelder@gmail.com> <user@ChrUbuntu.(none)>
@@ -18,6 +19,7 @@ David Carlier <devnexen@gmail.com>
 Devchandra Meetei Leishangthem <dlmeetei@gmail.com>
 Fedor Indutny <fedor.indutny@gmail.com> <fedor@indutny.com>
 Frank Denis <github@pureftpd.org>
+Hüseyin Açacak <110401522+huseyinacacak-janea@users.noreply.github.com> <huseyin@janeasystems.com>
 Imran Iqbal <imrani@ca.ibm.com> <imran@imraniqbal.org>
 Isaac Z. Schlueter <i@izs.me>
 Jason Williams <necmon@yahoo.com>
@@ -29,6 +31,7 @@ Keno Fischer <kenof@stanford.edu> <kfischer+github@college.harvard.edu>
 Keno Fischer <kenof@stanford.edu> <kfischer@college.harvard.edu>
 Leith Bade <leith@leithalweapon.geek.nz> <leith@mapbox.com>
 Leonard Hecker <leonard.hecker91@gmail.com> <leonard@hecker.io>
+Lewis Russell <me@lewisr.dev> <lewis6991@gmail.com>
 Maciej Małecki <maciej.malecki@notimplemented.org> <me@mmalecki.com>
 Marc Schlaich <marc.schlaich@googlemail.com> <marc.schlaich@gmail.com>
 Michael <michael_dawson@ca.ibm.com>
@@ -36,6 +39,7 @@ Michael Neumann <mneumann@think.localnet> <mneumann@ntecs.de>
 Michael Penick <michael.penick@datastax.com> <mpenick@users.noreply.github.com>
 Nicholas Vavilov <vvnicholas@gmail.com>
 Nick Logan <ugexe@cpan.org> <nlogan@gmail.com>
+Olivier Valentin <ovalenti@redhat.com> <valentio@free.fr>
 Rasmus Christian Pedersen <zerhacken@yahoo.com>
 Rasmus Christian Pedersen <zerhacken@yahoo.com> <ruysch@outlook.com>
 Richard Lau <rlau@redhat.com> <riclau@uk.ibm.com>
@@ -46,7 +50,8 @@ Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
 Sam Roberts <vieuxtech@gmail.com> <sam@strongloop.com>
 San-Tai Hsu <vanilla@fatpipi.com>
 Santiago Gimeno <santiago.gimeno@quantion.es> <santiago.gimeno@gmail.com>
-Saúl Ibarra Corretgé <saghul@gmail.com>
+Saúl Ibarra Corretgé <s@saghul.net>
+Saúl Ibarra Corretgé <s@saghul.net> <saghul@gmail.com>
 Saúl Ibarra Corretgé <saghul@gmail.com> <s@saghul.net>
 Shigeki Ohtsu <ohtsu@iij.ad.jp> <ohtsu@ohtsu.org>
 Shuowang (Wayne) Zhang <shuowang.zhang@ibm.com>
@@ -60,5 +65,7 @@ gengjiawen <technicalcute@gmail.com>
 jBarz <jBarz@users.noreply.github.com> <jbarboza@ca.ibm.com>
 jBarz <jBarz@users.noreply.github.com> <jbarz@users.noreply.github.com>
 ptlomholt <pt@lomholt.com>
+theanarkh <2923878201@qq.com> <theratliter@gmail.com>
 tjarlama <59913901+tjarlama@users.noreply.github.com> <tjarlama@gmail.com>
+ywave620 <rogertyang@tencent.com> <60539365+ywave620@users.noreply.github.com>
 zlargon <zlargon1988@gmail.com>

.readthedocs.yaml

@@ -2,10 +2,14 @@ version: 2
 
 sphinx:
   builder: html
-  configuration: null
+  configuration: docs/src/conf.py
   fail_on_warning: false
 
+build:
+  os: "ubuntu-22.04"
+  tools:
+    python: "3.9"
+
 python:
-  version: 3.8
   install:
     - requirements: docs/requirements.txt

AUTHORS

@@ -496,3 +496,99 @@ Jesper Storm Bache <jsbache@users.noreply.github.com>
 Campbell He <duskmoon314@users.noreply.github.com>
 Andrey Hohutkin <andrey.hohutkin@gmail.com>
 deal <halx99@live.com>
+David Machaj <46852402+dmachaj@users.noreply.github.com>
+Jessica Clarke <jrtc27@jrtc27.com>
+Jeremy Rose <nornagon@nornagon.net>
+woclass <git@wo-class.cn>
+Luca Adrian L <info@lucalindhorst.de>
+WenTao Ou <owt5008137@live.com>
+jonilaitinen <joni.laitinen@iki.fi>
+UMU <UMU618@users.noreply.github.com>
+Paul Evans <leonerd@leonerd.org.uk>
+wyckster <wyckster@hotmail.com>
+Vittore F. Scolari <vittore.scolari@gmail.com>
+roflcopter4 <15476346+roflcopter4@users.noreply.github.com>
+V-for-Vasili <vasili.skurydzin@protonmail.com>
+Denny C. Dai <dennycd@me.com>
+Hannah Shi <hannahshisfb@gmail.com>
+tuftedocelot <tuftedocelot@fastmail.fm>
+blogdaren <blogdaren@163.com>
+chucksilvers <chuq@chuq.com>
+Sergey Fedorov <vital.had@gmail.com>
+theanarkh <2923878201@qq.com>
+Samuel Cabrero <samuelcabrero@gmail.com>
+自发对称破缺 <429839446@qq.com>
+Luan Devecchi <luan@engineer.com>
+Steven Schveighoffer <schveiguy@gmail.com>
+number201724 <number201724@me.com>
+Daniel <reymond315qq@gmail.com>
+Christian Clason <christian.clason@uni-due.de>
+ywave620 <rogertyang@tencent.com>
+jensbjorgensen <jbj1@ultraemail.net>
+daomingq <daoming.qiu@intel.com>
+Qix <Qix-@users.noreply.github.com>
+Edward Humes <29870961+aurxenon@users.noreply.github.com>
+Tim Besard <tim.besard@gmail.com>
+Sergey Rubanov <chi187@gmail.com>
+Stefan Stojanovic <StefanStojanovic@users.noreply.github.com>
+Zvicii <zvicii@qq.com>
+dundargoc <33953936+dundargoc@users.noreply.github.com>
+Jack·Boos·Yu <47264268+JackBoosY@users.noreply.github.com>
+panran <310762957@qq.com>
+Tamás Bálint Misius <lbphacker@gmail.com>
+Bruno Passeri <Varstahl@users.noreply.github.com>
+Jason Zhang <xzha4350@gmail.com>
+Lewis Russell <me@lewisr.dev>
+sivadeilra <arlie.davis@gmail.com>
+cui fliter <imcusg@gmail.com>
+Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
+Niklas Mischkulnig <4586894+mischnic@users.noreply.github.com>
+Stefan Karpinski <stefan@karpinski.org>
+liuxiang88 <94350585+liuxiang88@users.noreply.github.com>
+Jeffrey H. Johnson <trnsz@pobox.com>
+Abdirahim Musse <33973272+abmusse@users.noreply.github.com>
+小明 <7737673+caobug@users.noreply.github.com>
+Shuduo Sang <sangshuduo@gmail.com>
+Keith Winstein <keithw@cs.stanford.edu>
+michalbiesek <michalbiesek@gmail.com>
+Alois Klink <alois@aloisklink.com>
+SmorkalovG <smorkalov.g@gmail.com>
+Pleuvens <pleuvens.fervil@gmail.com>
+jolai <58589285+laijonathan@users.noreply.github.com>
+Julien Roncaglia <fox@vbfox.net>
+prubel <paul@rubels.net>
+Per Allansson <65364157+per-allansson@users.noreply.github.com>
+Matheus Izvekov <mizvekov@gmail.com>
+Christian Heimlich <chris@pcserenity.com>
+Hao Hu <33607772+hhu8@users.noreply.github.com>
+matoro <12038583+matoro@users.noreply.github.com>
+Bo Anderson <mail@boanderson.me>
+Ardi Nugraha <33378542+ardi-nugraha@users.noreply.github.com>
+Anton Bachin <antonbachin@yahoo.com>
+Trevor Flynn <trevorflynn@liquidcrystalstudios.com>
+Andy Pan <panjf2000@gmail.com>
+Viacheslav Muravyev <slavamuravey@mail.ru>
+Anthony Alayo <anthony.alayo@gmail.com>
+Thomas Walter <31201229+waltoss@users.noreply.github.com>
+hiiizxf <385122613@qq.com>
+Geddy <guandichao@163.com>
+Farzin Monsef <monseffarzin@gmail.com>
+tgolang <154592711+tgolang@users.noreply.github.com>
+josedelinux <josedelinux@hotmail.com>
+Hüseyin Açacak <110401522+huseyinacacak-janea@users.noreply.github.com>
+Uilian Ries <uilianries@gmail.com>
+Olivier Valentin <ovalenti@redhat.com>
+郑苏波 (Super Zheng) <superzheng@tencent.com>
+zeertzjq <zeertzjq@outlook.com>
+Ian Butterworth <i.r.butterworth@gmail.com>
+握猫猫 <164346864@qq.com>
+Zuohui Yang <274048862@qq.com>
+Edigleysson Silva (Edy) <edigleyssonsilva@gmail.com>
+Raihaan Shouhell <raihaanhimself@gmail.com>
+Rialbat <miha-wead@mail.ru>
+Adam <adam@NetBSD.org>
+Poul T Lomholt <ptlomholt@users.noreply.github.com>
+Thad House <ThadHouse@users.noreply.github.com>
+Julian A Avar C <28635807+julian-a-avar-c@users.noreply.github.com>
+amcgoogan <105525867+amcgoogan@users.noreply.github.com>
+Rafael Gonzaga <rafael.nunu@hotmail.com>

CMakeLists.txt

@@ -1,8 +1,13 @@
-cmake_minimum_required(VERSION 3.4)
-project(libuv LANGUAGES C)
+cmake_minimum_required(VERSION 3.10)
 
-cmake_policy(SET CMP0057 NEW) # Enable IN_LIST operator
-cmake_policy(SET CMP0064 NEW) # Support if (TEST) operator
+if(POLICY CMP0091)
+  cmake_policy(SET CMP0091 NEW) # Enable MSVC_RUNTIME_LIBRARY setting
+endif()
+if(POLICY CMP0092)
+  cmake_policy(SET CMP0092 NEW) # disable /W3 warning, if possible
+endif()
+
+project(libuv LANGUAGES C)
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
 
@@ -17,9 +22,13 @@ set(CMAKE_C_STANDARD_REQUIRED ON)
 set(CMAKE_C_EXTENSIONS ON)
 set(CMAKE_C_STANDARD 90)
 
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+option(LIBUV_BUILD_SHARED "Build shared lib" ON)
+
 cmake_dependent_option(LIBUV_BUILD_TESTS
   "Build the unit tests when BUILD_TESTING is enabled and we are the root project" ON
-  "BUILD_TESTING;CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR" OFF)
+  "BUILD_TESTING;LIBUV_BUILD_SHARED;CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR" OFF)
 cmake_dependent_option(LIBUV_BUILD_BENCH
   "Build the benchmarks when building unit tests and we are the root project" ON
   "LIBUV_BUILD_TESTS" OFF)
@@ -27,28 +36,66 @@ cmake_dependent_option(LIBUV_BUILD_BENCH
 # Qemu Build
 option(QEMU "build for qemu" OFF)
 if(QEMU)
-  add_definitions(-D__QEMU__=1)
+  list(APPEND uv_defines __QEMU__=1)
 endif()
 
+# Note: these are mutually exclusive.
 option(ASAN "Enable AddressSanitizer (ASan)" OFF)
+option(MSAN "Enable MemorySanitizer (MSan)" OFF)
 option(TSAN "Enable ThreadSanitizer (TSan)" OFF)
+option(UBSAN "Enable UndefinedBehaviorSanitizer (UBSan)" OFF)
 
-if((ASAN OR TSAN) AND NOT (CMAKE_C_COMPILER_ID MATCHES "AppleClang|GNU|Clang"))
-  message(SEND_ERROR "Sanitizer support requires clang or gcc. Try again with -DCMAKE_C_COMPILER.")
+if(MSAN AND NOT CMAKE_C_COMPILER_ID MATCHES "AppleClang|Clang")
+  message(SEND_ERROR "MemorySanitizer requires clang. Try again with -DCMAKE_C_COMPILER=clang")
 endif()
 
 if(ASAN)
-  add_definitions(-D__ASAN__=1)
+  list(APPEND uv_defines __ASAN__=1)
+  if(CMAKE_C_COMPILER_ID MATCHES "AppleClang|GNU|Clang")
     set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-omit-frame-pointer -fsanitize=address")
     set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=address")
     set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=address")
+  elseif(MSVC)
+    set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /fsanitize=address")
+  else()
+    message(SEND_ERROR "AddressSanitizer support requires clang, gcc, or msvc. Try again with -DCMAKE_C_COMPILER.")
+  endif()
+endif()
+
+if(MSAN)
+  list(APPEND uv_defines __MSAN__=1)
+  set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-omit-frame-pointer -fsanitize=memory")
+  set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=memory")
+  set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=memory")
 endif()
 
 if(TSAN)
-  add_definitions(-D__TSAN__=1)
+  list(APPEND uv_defines __TSAN__=1)
+  if(CMAKE_C_COMPILER_ID MATCHES "AppleClang|GNU|Clang")
     set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-omit-frame-pointer -fsanitize=thread")
     set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=thread")
     set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-omit-frame-pointer -fsanitize=thread")
+  else()
+    message(SEND_ERROR "ThreadSanitizer support requires clang or gcc. Try again with -DCMAKE_C_COMPILER.")
+  endif()
+endif()
+
+if(UBSAN)
+  cmake_minimum_required(VERSION 3.13)
+  list(APPEND uv_defines __UBSAN__=1)
+  if(CMAKE_C_COMPILER_ID MATCHES "AppleClang|GNU|Clang")
+    add_compile_options("-fsanitize=undefined" "-fno-sanitize-recover=undefined")
+    if (NOT WIN32)
+      add_link_options("-fsanitize=undefined")
+    endif()
+    if(MSVC)
+      add_compile_options("/Oy-")
+    else()
+      add_compile_options("-fno-omit-frame-pointer")
+    endif()
+  else()
+    message(SEND_ERROR "UndefinedBehaviorSanitizer support requires clang or gcc. Try again with -DCMAKE_C_COMPILER.")
+  endif()
 endif()
 
 # Compiler check
@@ -119,12 +166,19 @@ list(APPEND uv_cflags ${lint-utf8-msvc} )
 check_c_compiler_flag(-fno-strict-aliasing UV_F_STRICT_ALIASING)
 list(APPEND uv_cflags $<$<BOOL:${UV_F_STRICT_ALIASING}>:-fno-strict-aliasing>)
 
+if (MSVC)
+  # Error on calling undeclared functions.
+  list(APPEND uv_cflags "/we4013")
+endif()
+
 set(uv_sources
     src/fs-poll.c
     src/idna.c
     src/inet.c
     src/random.c
     src/strscpy.c
+    src/strtok.c
+    src/thread-common.c
     src/threadpool.c
     src/timer.c
     src/uv-common.c
@@ -132,14 +186,17 @@ set(uv_sources
     src/version.c)
 
 if(WIN32)
-  list(APPEND uv_defines WIN32_LEAN_AND_MEAN _WIN32_WINNT=0x0602)
+  list(APPEND uv_defines WIN32_LEAN_AND_MEAN _WIN32_WINNT=0x0A00 _CRT_DECLARE_NONSTDC_NAMES=0)
   list(APPEND uv_libraries
        psapi
        user32
        advapi32
        iphlpapi
        userenv
-       ws2_32)
+       ws2_32
+       dbghelp
+       ole32
+       shell32)
   list(APPEND uv_sources
        src/win/async.c
        src/win/core.c
@@ -215,16 +272,11 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Android")
   list(APPEND uv_defines _GNU_SOURCE)
   list(APPEND uv_libraries dl)
   list(APPEND uv_sources
-       src/unix/android-ifaddrs.c
-       src/unix/linux-core.c
-       src/unix/linux-inotify.c
-       src/unix/linux-syscalls.c
+       src/unix/linux.c
        src/unix/procfs-exepath.c
-       src/unix/pthread-fixes.c
        src/unix/random-getentropy.c
        src/unix/random-getrandom.c
-       src/unix/random-sysctl-linux.c
-       src/unix/epoll.c)
+       src/unix/random-sysctl-linux.c)
 endif()
 
 if(APPLE OR CMAKE_SYSTEM_NAME MATCHES "Android|Linux")
@@ -259,17 +311,26 @@ if(APPLE)
        src/unix/fsevents.c)
 endif()
 
+if(CMAKE_SYSTEM_NAME STREQUAL "GNU")
+  list(APPEND uv_defines _GNU_SOURCE _POSIX_C_SOURCE=200112 _XOPEN_SOURCE=500)
+  list(APPEND uv_libraries dl)
+  list(APPEND uv_sources
+       src/unix/bsd-ifaddrs.c
+       src/unix/no-fsevents.c
+       src/unix/no-proctitle.c
+       src/unix/posix-hrtime.c
+       src/unix/posix-poll.c
+       src/unix/hurd.c)
+endif()
+
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   list(APPEND uv_defines _GNU_SOURCE _POSIX_C_SOURCE=200112)
   list(APPEND uv_libraries dl rt)
   list(APPEND uv_sources
-       src/unix/linux-core.c
-       src/unix/linux-inotify.c
-       src/unix/linux-syscalls.c
+       src/unix/linux.c
        src/unix/procfs-exepath.c
        src/unix/random-getrandom.c
-       src/unix/random-sysctl-linux.c
-       src/unix/epoll.c)
+       src/unix/random-sysctl-linux.c)
 endif()
 
 if(CMAKE_SYSTEM_NAME STREQUAL "NetBSD")
@@ -300,7 +361,6 @@ if(CMAKE_SYSTEM_NAME STREQUAL "OS390")
   list(APPEND uv_defines _XOPEN_SOURCE=600)
   list(APPEND uv_defines _XOPEN_SOURCE_EXTENDED)
   list(APPEND uv_sources
-       src/unix/pthread-fixes.c
        src/unix/os390.c
        src/unix/os390-syscalls.c
        src/unix/os390-proctitle.c)
@@ -338,6 +398,10 @@ if(CMAKE_SYSTEM_NAME STREQUAL "OS400")
 endif()
 
 if(CMAKE_SYSTEM_NAME STREQUAL "SunOS")
+  if(CMAKE_SYSTEM_VERSION STREQUAL "5.10")
+    list(APPEND uv_defines SUNOS_NO_IFADDRS)
+    list(APPEND uv_libraries rt)
+  endif()
   list(APPEND uv_defines __EXTENSIONS__ _XOPEN_SOURCE=500 _REENTRANT)
   list(APPEND uv_libraries kstat nsl sendfile socket)
   list(APPEND uv_sources
@@ -372,6 +436,21 @@ if(APPLE OR CMAKE_SYSTEM_NAME MATCHES "DragonFly|FreeBSD|Linux|NetBSD|OpenBSD")
   list(APPEND uv_test_libraries util)
 endif()
 
+if(CYGWIN OR MSYS)
+  list(APPEND uv_defines _GNU_SOURCE)
+  list(APPEND uv_sources
+       src/unix/cygwin.c
+       src/unix/bsd-ifaddrs.c
+       src/unix/no-fsevents.c
+       src/unix/no-proctitle.c
+       src/unix/posix-hrtime.c
+       src/unix/posix-poll.c
+       src/unix/procfs-exepath.c
+       src/unix/sysinfo-loadavg.c
+       src/unix/sysinfo-memory.c)
+endif()
+
+if(LIBUV_BUILD_SHARED)
   add_library(uv SHARED ${uv_sources})
   target_compile_definitions(uv
     INTERFACE
@@ -391,6 +470,8 @@ if(CMAKE_SYSTEM_NAME STREQUAL "OS390")
     set_target_properties(uv PROPERTIES LINKER_LANGUAGE CXX)
   endif()
   target_link_libraries(uv ${uv_libraries})
+  set_target_properties(uv PROPERTIES OUTPUT_NAME "uv")
+endif()
 
 add_library(uv_a STATIC ${uv_sources})
 target_compile_definitions(uv_a PRIVATE ${uv_defines})
@@ -406,6 +487,10 @@ if(CMAKE_SYSTEM_NAME STREQUAL "OS390")
   set_target_properties(uv_a PROPERTIES LINKER_LANGUAGE CXX)
 endif()
 target_link_libraries(uv_a ${uv_libraries})
+set_target_properties(uv_a PROPERTIES OUTPUT_NAME "uv")
+if(WIN32)
+  set_target_properties(uv_a PROPERTIES PREFIX "lib")
+endif()
 
 if(LIBUV_BUILD_TESTS)
   # Small hack: use ${uv_test_sources} now to get the runner skeleton,
@@ -418,6 +503,7 @@ if(LIBUV_BUILD_TESTS)
     test/benchmark-fs-stat.c
     test/benchmark-getaddrinfo.c
     test/benchmark-loop-count.c
+    test/benchmark-queue-work.c
     test/benchmark-million-async.c
     test/benchmark-million-timers.c
     test/benchmark-multi-accept.c
@@ -447,7 +533,6 @@ if(LIBUV_BUILD_TESTS)
        test/test-async-null-cb.c
        test/test-async.c
        test/test-barrier.c
-       test/test-callback-order.c
        test/test-callback-stack.c
        test/test-close-fd.c
        test/test-close-order.c
@@ -487,6 +572,7 @@ if(LIBUV_BUILD_TESTS)
        test/test-hrtime.c
        test/test-idle.c
        test/test-idna.c
+       test/test-iouring-pollhup.c
        test/test-ip4-addr.c
        test/test-ip6-addr.c
        test/test-ip-name.c
@@ -546,10 +632,12 @@ if(LIBUV_BUILD_TESTS)
        test/test-spawn.c
        test/test-stdio-over-pipes.c
        test/test-strscpy.c
+       test/test-strtok.c
        test/test-tcp-alloc-cb-fail.c
        test/test-tcp-bind-error.c
        test/test-tcp-bind6-error.c
        test/test-tcp-close-accept.c
+       test/test-tcp-close-after-read-timeout.c
        test/test-tcp-close-while-connecting.c
        test/test-tcp-close.c
        test/test-tcp-close-reset.c
@@ -562,9 +650,12 @@ if(LIBUV_BUILD_TESTS)
        test/test-tcp-oob.c
        test/test-tcp-open.c
        test/test-tcp-read-stop.c
+       test/test-tcp-reuseport.c
        test/test-tcp-read-stop-start.c
+       test/test-tcp-rst.c
        test/test-tcp-shutdown-after-write.c
        test/test-tcp-try-write.c
+       test/test-tcp-write-in-a-row.c
        test/test-tcp-try-write-error.c
        test/test-tcp-unexpected-read.c
        test/test-tcp-write-after-connect.c
@@ -573,8 +664,11 @@ if(LIBUV_BUILD_TESTS)
        test/test-tcp-write-to-half-open-connection.c
        test/test-tcp-writealot.c
        test/test-test-macros.c
+       test/test-thread-affinity.c
        test/test-thread-equal.c
        test/test-thread.c
+       test/test-thread-name.c
+       test/test-thread-priority.c
        test/test-threadpool-cancel.c
        test/test-threadpool.c
        test/test-timer-again.c
@@ -605,6 +699,8 @@ if(LIBUV_BUILD_TESTS)
        test/test-udp-sendmmsg-error.c
        test/test-udp-send-unreachable.c
        test/test-udp-try-send.c
+       test/test-udp-recv-in-a-row.c
+       test/test-udp-reuseport.c
        test/test-uname.c
        test/test-walk-handles.c
        test/test-watcher-cross-stop.c)
@@ -621,6 +717,12 @@ if(LIBUV_BUILD_TESTS)
     set_tests_properties(uv_test PROPERTIES ENVIRONMENT
                          "LIBPATH=${CMAKE_BINARY_DIR}:$ENV{LIBPATH}")
   endif()
+  if(WIN32)
+    add_custom_command(TARGET uv_run_tests POST_BUILD
+                       COMMAND "${CMAKE_COMMAND}" -E copy
+                       "$<TARGET_FILE:uv_run_tests>"
+                       "$<TARGET_FILE_DIR:uv_run_tests>/uv_run_tests_no_ext")
+  endif()
   add_executable(uv_run_tests_a ${uv_test_sources} uv_win_longpath.manifest)
   target_compile_definitions(uv_run_tests_a PRIVATE ${uv_defines})
   target_compile_options(uv_run_tests_a PRIVATE ${uv_cflags})
@@ -637,6 +739,12 @@ if(LIBUV_BUILD_TESTS)
     set_target_properties(uv_run_tests PROPERTIES LINKER_LANGUAGE CXX)
     set_target_properties(uv_run_tests_a PROPERTIES LINKER_LANGUAGE CXX)
   endif()
+  if(WIN32)
+    add_custom_command(TARGET uv_run_tests_a POST_BUILD
+                       COMMAND "${CMAKE_COMMAND}" -E copy
+                       "$<TARGET_FILE:uv_run_tests_a>"
+                       "$<TARGET_FILE_DIR:uv_run_tests_a>/uv_run_tests_a_no_ext")
+  endif()
 endif()
 
 # Now for some gibbering horrors from beyond the stars...
@@ -648,29 +756,54 @@ string(REPLACE ";" " " LIBS "${LIBS}")
 file(STRINGS configure.ac configure_ac REGEX ^AC_INIT)
 string(REGEX MATCH "([0-9]+)[.][0-9]+[.][0-9]+" PACKAGE_VERSION "${configure_ac}")
 set(UV_VERSION_MAJOR "${CMAKE_MATCH_1}")
-# The version in the filename is mirroring the behaviour of autotools.
-set_target_properties(uv PROPERTIES
-  VERSION ${UV_VERSION_MAJOR}.0.0
-  SOVERSION ${UV_VERSION_MAJOR})
+
 set(includedir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR})
 set(libdir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR})
 set(prefix ${CMAKE_INSTALL_PREFIX})
-configure_file(libuv.pc.in libuv.pc @ONLY)
 configure_file(libuv-static.pc.in libuv-static.pc @ONLY)
 
 install(DIRECTORY include/ DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 install(FILES LICENSE DESTINATION ${CMAKE_INSTALL_DOCDIR})
-install(FILES ${PROJECT_BINARY_DIR}/libuv.pc ${PROJECT_BINARY_DIR}/libuv-static.pc
+install(FILES LICENSE-extra DESTINATION ${CMAKE_INSTALL_DOCDIR})
+install(FILES ${PROJECT_BINARY_DIR}/libuv-static.pc
+        DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+install(TARGETS uv_a EXPORT libuvConfig
+        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(EXPORT libuvConfig
+	DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/libuv
+	NAMESPACE libuv::)
+
+if(LIBUV_BUILD_SHARED)
+  # The version in the filename is mirroring the behaviour of autotools.
+  set_target_properties(uv PROPERTIES
+          VERSION ${UV_VERSION_MAJOR}.0.0
+          SOVERSION ${UV_VERSION_MAJOR})
+  configure_file(libuv.pc.in libuv.pc @ONLY)
+  install(FILES ${PROJECT_BINARY_DIR}/libuv.pc
           DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
   install(TARGETS uv EXPORT libuvConfig
-        RUNTIME DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
-install(TARGETS uv_a ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
-install(EXPORT libuvConfig DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/libuv)
+          RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+          LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+          ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif()
 
 if(MSVC)
   set(CMAKE_DEBUG_POSTFIX d)
+  get_filename_component(CMAKE_C_COMPILER_DIR ${CMAKE_C_COMPILER} DIRECTORY)
+  if(ASAN)
+    file(INSTALL "${CMAKE_C_COMPILER_DIR}/llvm-symbolizer.exe" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
+    file(INSTALL "${CMAKE_C_COMPILER_DIR}/clang_rt.asan_dynamic-x86_64.dll" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
+    file(INSTALL "${CMAKE_C_COMPILER_DIR}/clang_rt.asan_dbg_dynamic-x86_64.dll" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
   endif()
+endif()
+
+if(BUILD_SHARED_LIBS)
+  set(LIB_SELECTED uv)
+else()
+  set(LIB_SELECTED uv_a)
+endif()
+
+add_library(libuv::libuv ALIAS ${LIB_SELECTED})
 
 message(STATUS "summary of build options:
     Install prefix:  ${CMAKE_INSTALL_PREFIX}

LICENSE

@@ -1,6 +1,3 @@
-libuv is licensed for use as follows:
-
-====
 Copyright (c) 2015-present libuv project contributors.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -20,51 +17,3 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 IN THE SOFTWARE.
-====
-
-This license applies to parts of libuv originating from the
-https://github.com/joyent/libuv repository:
-
-====
-
-Copyright Joyent, Inc. and other Node contributors. All rights reserved.
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to
-deal in the Software without restriction, including without limitation the
-rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-sell copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-IN THE SOFTWARE.
-
-====
-
-This license applies to all parts of libuv that are not externally
-maintained libraries.
-
-The externally maintained libraries used by libuv are:
-
-  - tree.h (from FreeBSD), copyright Niels Provos. Two clause BSD license.
-
-  - inet_pton and inet_ntop implementations, contained in src/inet.c, are
-    copyright the Internet Systems Consortium, Inc., and licensed under the ISC
-    license.
-
-  - stdint-msvc2008.h (from msinttypes), copyright Alexander Chemeris. Three
-    clause BSD license.
-
-  - pthread-fixes.c, copyright Google Inc. and Sony Mobile Communications AB.
-    Three clause BSD license.
-
-  - android-ifaddrs.h, android-ifaddrs.c, copyright Berkeley Software Design
-    Inc, Kenneth MacKay and Emergya (Cloud4all, FP7/2007-2013, grant agreement
-    n° 289016). Three clause BSD license.

LICENSE-extra

@@ -0,0 +1,36 @@
+This license applies to parts of libuv originating from the
+https://github.com/joyent/libuv repository:
+
+====
+
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
+
+====
+
+This license applies to all parts of libuv that are not externally
+maintained libraries.
+
+The externally maintained libraries used by libuv are:
+
+  - tree.h (from FreeBSD), copyright Niels Provos. Two clause BSD license.
+
+  - inet_pton and inet_ntop implementations, contained in src/inet.c, are
+    copyright the Internet Systems Consortium, Inc., and licensed under the ISC
+    license.

LINKS.md

@@ -1,16 +1,20 @@
 ### Apps / VM
+* [AliceO2](https://github.com/AliceO2Group/AliceO2): The framework and detector specific code for the reconstruction, calibration and simulation for the ALICE experiment at CERN.
+* [Beam](https://github.com/BeamMW/beam): A scalable, confidential cryptocurrency based on the Mimblewimble protocol.
 * [BIND 9](https://bind.isc.org/): DNS software system including an authoritative server, a recursive resolver and related utilities.
 * [cjdns](https://github.com/cjdelisle/cjdns): Encrypted self-configuring network/VPN routing engine
 * [clearskies_core](https://github.com/larroy/clearskies_core): Clearskies file synchronization program. (C++11)
 * [CMake](https://cmake.org) open-source, cross-platform family of tools designed to build, test and package software
+* [Cocos-Engine](https://github.com/cocos/cocos-engine): The runtime framework for Cocos Creator editor.
 * [Coherence](https://github.com/liesware/coherence/): Cryptographic server for modern web apps.
+* [DPS8M](https://dps8m.gitlab.io): GE ∕ Honeywell ∕ Bull DPS‑8/M and 6180/L68 mainframe simulator.
 * [DPS-For-IoT](https://github.com/intel/dps-for-iot/wiki): Fully distributed publish/subscribe protocol.
 * [HashLink](https://github.com/HaxeFoundation/hashlink): Haxe run-time with libuv support included.
 * [Haywire](https://github.com/kellabyte/Haywire): Asynchronous HTTP server.
 * [H2O](https://github.com/h2o/h2o): An optimized HTTP server with support for HTTP/1.x and HTTP/2.
 * [Igropyr](https://github.com/guenchi/Igropyr): a async Scheme http server base on libuv.
 * [Julia](http://julialang.org/): Scientific computing programming language
-* [Kestrel](https://github.com/aspnet/AspNetCore/tree/master/src/Servers/Kestrel): web server (C# + libuv + [ASP.NET Core](http://github.com/aspnet))
+* [Kestrel](https://github.com/dotnet/aspnetcore/tree/main/src/Servers/Kestrel): web server (C# + libuv + [ASP.NET Core](http://github.com/aspnet))
 * [Knot DNS Resolver](https://www.knot-resolver.cz/): A minimalistic DNS caching resolver
 * [Lever](http://leverlanguage.com): runtime, libuv at the 0.9.0 release
 * [libnode](https://github.com/plenluno/libnode): C++ implementation of Node.js
@@ -30,8 +34,11 @@
 * [phastlight](https://github.com/phastlight/phastlight): Command line tool and web server written in PHP 5.3+ inspired by Node.js
 * [pilight](https://www.pilight.org/): home automation ("domotica")
 * [pixie](https://github.com/pixie-lang/pixie): clojure-inspired lisp with a tracing JIT
+* [Pixie-io](https://github.com/pixie-io/pixie): Open-source observability tool for Kubernetes applications.
 * [potion](https://github.com/perl11/potion)/[p2](https://github.com/perl11/p2): runtime
 * [racer](https://libraries.io/rubygems/racer): Ruby web server written as an C extension
+* [scala-native-loop](https://github.com/scala-native/scala-native-loop): Extensible event loop and async-oriented IO for Scala Native; powered by libuv
+* [Socket Runtime](https://sockets.sh): A runtime for creating native cross-platform software on mobile and desktop using HTML, CSS, and JavaScript
 * [spider-gazelle](https://github.com/cotag/spider-gazelle): Ruby web server using libuv bindings
 * [Suave](http://suave.io/): A simple web development F# library providing a lightweight web server and a set of combinators to manipulate route flow and task composition
 * [Swish](https://github.com/becls/swish/): Concurrency engine with Erlang-like concepts. Includes a web server.
@@ -39,6 +46,7 @@
 * [Urbit](http://urbit.org): runtime
 * [uv_callback](https://github.com/litesync/uv_callback) libuv thread communication
 * [uvloop](https://github.com/MagicStack/uvloop): Ultra fast implementation of python's asyncio event loop on top of libuv
+* [WPILib](https://github.com/wpilibsuite/allwpilib): Libraries for creating robot programs for the roboRIO.
 * [Wren CLI](https://github.com/wren-lang/wren-cli): For io, process, scheduler and timer modules
 
 ### Other
@@ -59,6 +67,7 @@
    * [lluv](https://github.com/moteus/lua-lluv)
 * C++11
    * [uvpp](https://github.com/larroy/uvpp) - Not complete, exposes very few aspects of `libuv`
+   * [nsuv](https://github.com/nodesource/nsuv) - Template wrapper focused on enforcing compile-time type safety when propagating data
 * C++17
    * [uvw](https://github.com/skypjack/uvw) - Header-only, event based, tiny and easy to use *libuv* wrapper in modern C++.
 * Python
@@ -99,3 +108,5 @@
    * [node.pas](https://github.com/vovach777/node.pas) NodeJS-like ecosystem
 * Haskell
    * [Z.Haskell](https://z.haskell.world)
+* C3
+   * [libuv.c3l](https://github.com/velikoss/libuv.c3l)   

MAINTAINERS.md

@@ -1,23 +1,16 @@
-
 # Project Maintainers
 
 libuv is currently managed by the following individuals:
 
-* **Anna Henningsen** ([@addaleax](https://github.com/addaleax))
-* **Bartosz Sosnowski** ([@bzoz](https://github.com/bzoz))
 * **Ben Noordhuis** ([@bnoordhuis](https://github.com/bnoordhuis))
   - GPG key: D77B 1E34 243F BAF0 5F8E  9CC3 4F55 C8C8 46AB 89B9 (pubkey-bnoordhuis)
-* **Bert Belder** ([@piscisaureus](https://github.com/piscisaureus))
 * **Colin Ihrig** ([@cjihrig](https://github.com/cjihrig))
   - GPG key: 94AE 3667 5C46 4D64 BAFA  68DD 7434 390B DBE9 B9C5 (pubkey-cjihrig)
   - GPG key: 5735 3E0D BDAA A7E8 39B6  6A1A FF47 D5E4 AD8B 4FDC (pubkey-cjihrig-kb)
-* **Fedor Indutny** ([@indutny](https://github.com/indutny))
-  - GPG key: AF2E EA41 EC34 47BF DD86  FED9 D706 3CCE 19B7 E890 (pubkey-indutny)
-* **Imran Iqbal** ([@imran-iq](https://github.com/imran-iq))
-  - GPG key: 9DFE AA5F 481B BF77 2D90  03CE D592 4925 2F8E C41A (pubkey-iwuzhere)
 * **Jameson Nash** ([@vtjnash](https://github.com/vtjnash))
   - GPG key: AEAD 0A4B 6867 6775 1A0E  4AEF 34A2 5FB1 2824 6514 (pubkey-vtjnash)
-* **John Barboza** ([@jbarz](https://github.com/jbarz))
+  - GPG key: CFBB 9CA9 A5BE AFD7 0E2B  3C5A 79A6 7C55 A367 9C8B (pubkey2022-vtjnash)
+* **Jiawen Geng** ([@gengjiawen](https://github.com/gengjiawen))
 * **Kaoru Takanashi** ([@erw7](https://github.com/erw7))
   - GPG Key: 5804 F999 8A92 2AFB A398  47A0 7183 5090 6134 887F (pubkey-erw7)
 * **Richard Lau** ([@richardlau](https://github.com/richardlau))
@@ -26,6 +19,18 @@ libuv is currently managed by the following individuals:
   - GPG key: 612F 0EAD 9401 6223 79DF  4402 F28C 3C8D A33C 03BE (pubkey-santigimeno)
 * **Saúl Ibarra Corretgé** ([@saghul](https://github.com/saghul))
   - GPG key: FDF5 1936 4458 319F A823  3DC9 410E 5553 AE9B C059 (pubkey-saghul)
+* **Trevor Norris** ([@trevnorris](https://github.com/trevnorris))
+  - GPG key: AEFC 279A 0C93 0676 7E58  29A1 251C A676 820D C7F3 (pubkey-trevnorris)
+
+## Project Maintainers emeriti
+
+* **Anna Henningsen** ([@addaleax](https://github.com/addaleax))
+* **Bartosz Sosnowski** ([@bzoz](https://github.com/bzoz))
+* **Bert Belder** ([@piscisaureus](https://github.com/piscisaureus))
+* **Fedor Indutny** ([@indutny](https://github.com/indutny))
+  - GPG key: AF2E EA41 EC34 47BF DD86  FED9 D706 3CCE 19B7 E890 (pubkey-indutny)
+* **Imran Iqbal** ([@imran-iq](https://github.com/imran-iq))
+* **John Barboza** ([@jbarz](https://github.com/jbarz))
 
 ## Storing a maintainer key in Git
 

Makefile.am

@@ -27,8 +27,8 @@ uvinclude_HEADERS = include/uv/errno.h \
 CLEANFILES =
 
 lib_LTLIBRARIES = libuv.la
-libuv_la_CFLAGS = @CFLAGS@
-libuv_la_LDFLAGS = -no-undefined -version-info 1:0:0
+libuv_la_CFLAGS = $(AM_CFLAGS)
+libuv_la_LDFLAGS = $(AM_LDFLAGS) -no-undefined -version-info 1:0:0
 libuv_la_SOURCES = src/fs-poll.c \
                    src/heap-inl.h \
                    src/idna.c \
@@ -38,12 +38,15 @@ libuv_la_SOURCES = src/fs-poll.c \
                    src/random.c \
                    src/strscpy.c \
                    src/strscpy.h \
+                   src/thread-common.c \
                    src/threadpool.c \
                    src/timer.c \
                    src/uv-data-getter-setters.c \
                    src/uv-common.c \
                    src/uv-common.h \
-                   src/version.c
+                   src/version.c \
+                   src/strtok.c \
+                   src/strtok.h
 
 if SUNOS
 # Can't be turned into a CC_CHECK_CFLAGS in configure.ac, it makes compilers
@@ -56,7 +59,7 @@ if WINNT
 uvinclude_HEADERS += include/uv/win.h include/uv/tree.h
 AM_CPPFLAGS += -I$(top_srcdir)/src/win \
                -DWIN32_LEAN_AND_MEAN \
-               -D_WIN32_WINNT=0x0602
+               -D_WIN32_WINNT=0x0A00
 libuv_la_SOURCES += src/win/async.c \
                     src/win/atomicops-inl.h \
                     src/win/core.c \
@@ -94,7 +97,6 @@ else  # WINNT
 uvinclude_HEADERS += include/uv/unix.h
 AM_CPPFLAGS += -I$(top_srcdir)/src/unix
 libuv_la_SOURCES += src/unix/async.c \
-                   src/unix/atomic-ops.h \
                    src/unix/core.c \
                    src/unix/dl.c \
                    src/unix/fs.c \
@@ -108,7 +110,6 @@ libuv_la_SOURCES += src/unix/async.c \
                    src/unix/process.c \
                    src/unix/random-devurandom.c \
                    src/unix/signal.c \
-                   src/unix/spinlock.h \
                    src/unix/stream.c \
                    src/unix/tcp.c \
                    src/unix/thread.c \
@@ -120,18 +121,26 @@ endif  # WINNT
 EXTRA_DIST = test/fixtures/empty_file \
              test/fixtures/load_error.node \
              test/fixtures/lorem_ipsum.txt \
+             test/fixtures/one_file/one_file \
              include \
              docs \
              img \
              CONTRIBUTING.md \
              LICENSE \
+             LICENSE-extra \
              README.md
 
 
 
 TESTS = test/run-tests
 check_PROGRAMS = test/run-tests
-test_run_tests_CFLAGS =
+test_run_tests_CFLAGS = $(AM_CFLAGS)
+
+if WINNT
+check-am: test/run-tests_no_ext
+test/run-tests_no_ext: test/run-tests$(EXEEXT)
+	cp test/run-tests$(EXEEXT) test/run-tests_no_ext
+endif
 
 if SUNOS
 # Can't be turned into a CC_CHECK_CFLAGS in configure.ac, it makes compilers
@@ -139,7 +148,7 @@ if SUNOS
 test_run_tests_CFLAGS += -pthreads
 endif
 
-test_run_tests_LDFLAGS =
+test_run_tests_LDFLAGS = $(AM_LDFLAGS)
 test_run_tests_SOURCES = test/blackhole-server.c \
                          test/echo-server.c \
                          test/run-tests.c \
@@ -150,7 +159,6 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-async.c \
                          test/test-async-null-cb.c \
                          test/test-barrier.c \
-                         test/test-callback-order.c \
                          test/test-callback-stack.c \
                          test/test-close-fd.c \
                          test/test-close-order.c \
@@ -190,6 +198,7 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-hrtime.c \
                          test/test-idle.c \
                          test/test-idna.c \
+                         test/test-iouring-pollhup.c \
                          test/test-ip4-addr.c \
                          test/test-ip6-addr.c \
                          test/test-ip-name.c \
@@ -250,11 +259,13 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-spawn.c \
                          test/test-stdio-over-pipes.c \
                          test/test-strscpy.c \
+                         test/test-strtok.c \
                          test/test-tcp-alloc-cb-fail.c \
                          test/test-tcp-bind-error.c \
                          test/test-tcp-bind6-error.c \
                          test/test-tcp-close-accept.c \
                          test/test-tcp-close-while-connecting.c \
+                         test/test-tcp-close-after-read-timeout.c \
                          test/test-tcp-close.c \
                          test/test-tcp-close-reset.c \
                          test/test-tcp-create-socket-early.c \
@@ -265,7 +276,9 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-tcp-flags.c \
                          test/test-tcp-open.c \
                          test/test-tcp-read-stop.c \
+                         test/test-tcp-reuseport.c \
                          test/test-tcp-read-stop-start.c \
+                         test/test-tcp-rst.c \
                          test/test-tcp-shutdown-after-write.c \
                          test/test-tcp-unexpected-read.c \
                          test/test-tcp-oob.c \
@@ -274,11 +287,15 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-tcp-writealot.c \
                          test/test-tcp-write-fail.c \
                          test/test-tcp-try-write.c \
+                         test/test-tcp-write-in-a-row.c \
                          test/test-tcp-try-write-error.c \
                          test/test-tcp-write-queue-order.c \
                          test/test-test-macros.c \
                          test/test-thread-equal.c \
                          test/test-thread.c \
+                         test/test-thread-affinity.c \
+                         test/test-thread-name.c \
+                         test/test-thread-priority.c \
                          test/test-threadpool-cancel.c \
                          test/test-threadpool.c \
                          test/test-timer-again.c \
@@ -309,6 +326,8 @@ test_run_tests_SOURCES = test/blackhole-server.c \
                          test/test-udp-sendmmsg-error.c \
                          test/test-udp-send-unreachable.c \
                          test/test-udp-try-send.c \
+                         test/test-udp-recv-in-a-row.c \
+                         test/test-udp-reuseport.c \
                          test/test-uname.c \
                          test/test-walk-handles.c \
                          test/test-watcher-cross-stop.c
@@ -388,10 +407,7 @@ libuv_la_SOURCES += src/unix/aix-common.c \
 endif
 
 if ANDROID
-uvinclude_HEADERS += include/uv/android-ifaddrs.h
 libuv_la_CFLAGS += -D_GNU_SOURCE
-libuv_la_SOURCES += src/unix/android-ifaddrs.c \
-                    src/unix/pthread-fixes.c
 endif
 
 if CYGWIN
@@ -415,6 +431,7 @@ libuv_la_CFLAGS += -D_DARWIN_UNLIMITED_SELECT=1
 libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
                     src/unix/darwin-proctitle.c \
                     src/unix/darwin-stub.h \
+                    src/unix/darwin-syscalls.h \
                     src/unix/darwin.c \
                     src/unix/fsevents.c \
                     src/unix/kqueue.c \
@@ -457,23 +474,22 @@ endif
 
 if HURD
 uvinclude_HEADERS += include/uv/posix.h
-libuv_la_SOURCES += src/unix/no-fsevents.c \
+libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
+                    src/unix/no-fsevents.c \
+                    src/unix/no-proctitle.c \
                     src/unix/posix-hrtime.c \
-                    src/unix/posix-poll.c
+                    src/unix/posix-poll.c \
+                    src/unix/hurd.c
 endif
 
 if LINUX
 uvinclude_HEADERS += include/uv/linux.h
 libuv_la_CFLAGS += -D_GNU_SOURCE
-libuv_la_SOURCES += src/unix/linux-core.c \
-                    src/unix/linux-inotify.c \
-                    src/unix/linux-syscalls.c \
-                    src/unix/linux-syscalls.h \
+libuv_la_SOURCES += src/unix/linux.c \
                     src/unix/procfs-exepath.c \
                     src/unix/proctitle.c \
                     src/unix/random-getrandom.c \
-                    src/unix/random-sysctl-linux.c \
-                    src/unix/epoll.c
+                    src/unix/random-sysctl-linux.c
 test_run_tests_LDFLAGS += -lutil
 endif
 
@@ -537,8 +553,7 @@ libuv_la_CFLAGS += -D_UNIX03_THREADS \
                    -qXPLINK \
                    -qFLOAT=IEEE
 libuv_la_LDFLAGS += -qXPLINK
-libuv_la_SOURCES += src/unix/pthread-fixes.c \
-                    src/unix/os390.c \
+libuv_la_SOURCES += src/unix/os390.c \
                     src/unix/os390-syscalls.c \
                     src/unix/proctitle.c
 endif

README.md

@@ -43,8 +43,11 @@ The ABI/API changes can be tracked [here](http://abi-laboratory.pro/tracker/time
 
 ## Licensing
 
-libuv is licensed under the MIT license. Check the [LICENSE file](LICENSE).
-The documentation is licensed under the CC BY 4.0 license. Check the [LICENSE-docs file](LICENSE-docs).
+libuv is licensed under the MIT license. Check the [LICENSE](LICENSE) and
+[LICENSE-extra](LICENSE-extra) files.
+
+The documentation is licensed under the CC BY 4.0 license. Check the
+[LICENSE-docs file](LICENSE-docs).
 
 ## Community
 
@@ -220,6 +223,27 @@ Make sure that you specify the architecture you wish to build for in the
 "ARCHS" flag. You can specify more than one by delimiting with a space
 (e.g. "x86_64 i386").
 
+### Install with vcpkg
+
+```bash
+$ git clone https://github.com/microsoft/vcpkg.git
+$ ./bootstrap-vcpkg.bat # for powershell
+$ ./bootstrap-vcpkg.sh # for bash
+$ ./vcpkg install libuv
+```
+
+### Install with Conan
+
+You can install pre-built binaries for libuv or build it from source using [Conan](https://conan.io/). Use the following command:
+
+```bash
+conan install --requires="libuv/[*]" --build=missing
+```
+
+The libuv Conan recipe is kept up to date by Conan maintainers and community contributors.
+If the version is out of date, please [create an issue or pull request](https://github.com/conan-io/conan-center-index) on the ConanCenterIndex repository.
+
+
 ### Running tests
 
 Some tests are timing sensitive. Relaxing test timeouts may be necessary

SECURITY.md

@@ -0,0 +1,27 @@
+# Security Policy
+
+## Supported Versions
+
+Currently, we are providing security updates for the latest release in the v1.x series:
+
+| Version | Supported          |
+| ------- | ------------------ |
+| Latest v1.x  | :white_check_mark: |
+
+## Reporting a Vulnerability
+
+If you believe you have found a security vulnerability in `libuv`, please use the [GitHub's private vulnerability reporting feature](https://docs.github.com/en/code-security/security-advisories/guidance-on-reporting-and-writing-information-about-vulnerabilities/privately-reporting-a-security-vulnerability#privately-reporting-a-security-vulnerability) in the [libuv repository](https://github.com/libuv/libuv) to report it to us.
+
+This will allow us to assess the risk, and make a fix available before we add a bug report to the GitHub repository.
+
+Please do:
+
+* Provide as much information as you can about the vulnerability.
+* Provide details about your configuration and environment, if applicable.
+
+Please do not:
+
+* Post any information about the vulnerability in public places.
+* Attempt to exploit the vulnerability yourself.
+
+We take all security bugs seriously. Thank you for improving the security of `libuv`. We appreciate your efforts and responsible disclosure and will make every effort to acknowledge your contributions.

SUPPORTED_PLATFORMS.md

@@ -2,17 +2,16 @@
 
 |  System | Support type | Supported versions | Notes |
 |---|---|---|---|
-| GNU/Linux | Tier 1 | Linux >= 2.6.32 with glibc >= 2.12 | |
-| macOS | Tier 1 | macOS >= 10.7 | |
-| Windows | Tier 1 | >= Windows 8 | VS 2015 and later are supported |
-| FreeBSD | Tier 1 | >= 10 | |
+| GNU/Linux | Tier 1 | Linux >= 3.10 with glibc >= 2.17 | |
+| macOS | Tier 1 | macOS >= 11 | Currently supported macOS releases |
+| Windows | Tier 1 | >= Windows 10 | VS 2015 and later are supported |
+| FreeBSD | Tier 2 | >= 12 | |
 | AIX | Tier 2 | >= 6 | Maintainers: @libuv/aix |
 | IBM i | Tier 2 | >= IBM i 7.2 | Maintainers: @libuv/ibmi |
 | z/OS | Tier 2 | >= V2R2 | Maintainers: @libuv/zos |
 | Linux with musl | Tier 2 | musl >= 1.0 | |
-| SmartOS | Tier 3 | >= 14.4 | |
-| Android | Tier 3 | NDK >= r15b | |
-| MinGW | Tier 3 | MinGW32 and MinGW-w64 | |
+| Android | Tier 3 | NDK >= r15b | Android 7.0, `-DANDROID_PLATFORM=android-24` |
+| MinGW | Tier 3 | MinGW-w64 | |
 | SunOS | Tier 3 | Solaris 121 and later | |
 | Other | Tier 3 | N/A | |
 

autogen.sh

@@ -14,9 +14,16 @@
 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
+set -eu
 cd `dirname "$0"`
 
-if [ "$LIBTOOLIZE" = "" ] && [ "`uname`" = "Darwin" ]; then
+if [ "${1:-dev}" = "release" ]; then
+    export LIBUV_RELEASE=true
+else
+    export LIBUV_RELEASE=false
+fi
+
+if [ "${LIBTOOLIZE:-}" = "" ] && [ "`uname`" = "Darwin" ]; then
   LIBTOOLIZE=glibtoolize
 fi
 
@@ -25,9 +32,17 @@ AUTOCONF=${AUTOCONF:-autoconf}
 AUTOMAKE=${AUTOMAKE:-automake}
 LIBTOOLIZE=${LIBTOOLIZE:-libtoolize}
 
+aclocal_version=`"$ACLOCAL" --version | head -n 1 | sed 's/[^.0-9]//g'`
+autoconf_version=`"$AUTOCONF" --version | head -n 1 | sed 's/[^.0-9]//g'`
 automake_version=`"$AUTOMAKE" --version | head -n 1 | sed 's/[^.0-9]//g'`
 automake_version_major=`echo "$automake_version" | cut -d. -f1`
 automake_version_minor=`echo "$automake_version" | cut -d. -f2`
+libtoolize_version=`"$LIBTOOLIZE" --version | head -n 1 | sed 's/[^.0-9]//g'`
+
+if [ $aclocal_version != $automake_version ]; then
+    echo "FATAL: aclocal version appears not to be from the same as automake"
+    exit 1
+fi
 
 UV_EXTRA_AUTOMAKE_FLAGS=
 if test "$automake_version_major" -gt 1 || \
@@ -39,8 +54,22 @@ fi
 echo "m4_define([UV_EXTRA_AUTOMAKE_FLAGS], [$UV_EXTRA_AUTOMAKE_FLAGS])" \
     > m4/libuv-extra-automake-flags.m4
 
-set -ex
-"$LIBTOOLIZE" --copy
+(set -x
+"$LIBTOOLIZE" --copy --force
 "$ACLOCAL" -I m4
+)
+if $LIBUV_RELEASE; then
+  "$AUTOCONF" -o /dev/null m4/libuv-check-versions.m4
+  echo "
+AC_PREREQ($autoconf_version)
+AC_INIT([libuv-release-check], [0.0])
+AM_INIT_AUTOMAKE([$automake_version])
+LT_PREREQ($libtoolize_version)
+AC_OUTPUT
+" > m4/libuv-check-versions.m4
+fi
+(
+set -x
 "$AUTOCONF"
 "$AUTOMAKE" --add-missing --copy
+)

cmake-toolchains/cross-mingw32.cmake

@@ -0,0 +1,17 @@
+if(NOT HOST_ARCH)
+  message(SEND_ERROR "-DHOST_ARCH required to be specified")
+endif()
+
+list(APPEND CMAKE_TRY_COMPILE_PLATFORM_VARIABLES
+  HOST_ARCH
+  )
+
+SET(CMAKE_SYSTEM_NAME Windows)
+set(COMPILER_PREFIX "${HOST_ARCH}-w64-mingw32")
+find_program(CMAKE_RC_COMPILER NAMES ${COMPILER_PREFIX}-windres)
+find_program(CMAKE_C_COMPILER NAMES ${COMPILER_PREFIX}-gcc)
+find_program(CMAKE_CXX_COMPILER NAMES ${COMPILER_PREFIX}-g++)
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)

configure.ac

@@ -13,12 +13,13 @@
 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 AC_PREREQ(2.57)
-AC_INIT([libuv], [1.43.0], [https://github.com/libuv/libuv/issues])
+AC_INIT([libuv], [1.50.1-dev], [https://github.com/libuv/libuv/issues])
 AC_CONFIG_MACRO_DIR([m4])
 m4_include([m4/libuv-extra-automake-flags.m4])
 m4_include([m4/as_case.m4])
 m4_include([m4/libuv-check-flags.m4])
 AM_INIT_AUTOMAKE([-Wall -Werror foreign subdir-objects] UV_EXTRA_AUTOMAKE_FLAGS)
+AM_MAINTAINER_MODE([enable]) # pass --disable-maintainer-mode if autotools may be unavailable
 AC_CANONICAL_HOST
 AC_ENABLE_SHARED
 AC_ENABLE_STATIC
@@ -28,7 +29,9 @@ AM_PROG_CC_C_O
 CC_ATTRIBUTE_VISIBILITY([default], [
   CC_FLAG_VISIBILITY([CFLAGS="${CFLAGS} -fvisibility=hidden"])
 ])
-CC_CHECK_CFLAGS_APPEND([-fno-strict-aliasing])
+# Xlc has a flag "-f<filename>". Need to use CC_CHECK_FLAG_SUPPORTED_APPEND so
+# we exclude -fno-strict-aliasing for xlc
+CC_CHECK_FLAG_SUPPORTED_APPEND([-fno-strict-aliasing])
 CC_CHECK_CFLAGS_APPEND([-g])
 CC_CHECK_CFLAGS_APPEND([-std=gnu89])
 CC_CHECK_CFLAGS_APPEND([-Wall])
@@ -59,7 +62,7 @@ AM_CONDITIONAL([ANDROID],  [AS_CASE([$host_os],[linux-android*],[true], [false])
 AM_CONDITIONAL([CYGWIN],   [AS_CASE([$host_os],[cygwin*],       [true], [false])])
 AM_CONDITIONAL([DARWIN],   [AS_CASE([$host_os],[darwin*],       [true], [false])])
 AM_CONDITIONAL([DRAGONFLY],[AS_CASE([$host_os],[dragonfly*],    [true], [false])])
-AM_CONDITIONAL([FREEBSD],  [AS_CASE([$host_os],[*freebsd*],     [true], [false])])
+AM_CONDITIONAL([FREEBSD],  [AS_CASE([$host_os],[freebsd*],      [true], [false])])
 AM_CONDITIONAL([HAIKU],    [AS_CASE([$host_os],[haiku],         [true], [false])])
 AM_CONDITIONAL([HURD],     [AS_CASE([$host_os],[gnu*],          [true], [false])])
 AM_CONDITIONAL([LINUX],    [AS_CASE([$host_os],[linux*],        [true], [false])])
@@ -71,12 +74,12 @@ AM_CONDITIONAL([OS400],    [AS_CASE([$host_os],[os400],         [true], [false])
 AM_CONDITIONAL([SUNOS],    [AS_CASE([$host_os],[solaris*],      [true], [false])])
 AM_CONDITIONAL([WINNT],    [AS_CASE([$host_os],[mingw*],        [true], [false])])
 AS_CASE([$host_os],[mingw*], [
-    LIBS="$LIBS -lws2_32 -lpsapi -liphlpapi -lshell32 -luserenv -luser32"
+    LIBS="$LIBS -lws2_32 -lpsapi -liphlpapi -luserenv -luser32 -ldbghelp -lole32 -lshell32"
+])
+AS_CASE([$host_os], [solaris2.10], [
+    CFLAGS="$CFLAGS -DSUNOS_NO_IFADDRS"
 ])
 AS_CASE([$host_os], [netbsd*], [AC_CHECK_LIB([kvm], [kvm_open])])
-AS_CASE([$host_os], [kfreebsd*], [
-    LIBS="$LIBS -lfreebsd-glue"
-])
 AS_CASE([$host_os], [haiku], [
     LIBS="$LIBS -lnetwork"
 ])
@@ -85,4 +88,5 @@ AC_CONFIG_FILES([Makefile libuv.pc])
 AC_CONFIG_LINKS([test/fixtures/empty_file:test/fixtures/empty_file])
 AC_CONFIG_LINKS([test/fixtures/load_error.node:test/fixtures/load_error.node])
 AC_CONFIG_LINKS([test/fixtures/lorem_ipsum.txt:test/fixtures/lorem_ipsum.txt])
+AC_CONFIG_LINKS([test/fixtures/one_file/one_file:test/fixtures/one_file/one_file])
 AC_OUTPUT

docs/code/.gitignore

@@ -0,0 +1,3 @@
+*/*
+!*.c
+!*.h

docs/code/CMakeLists.txt

@@ -0,0 +1,51 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(libuv_sample)
+
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+add_subdirectory("../../" build)
+
+set(SIMPLE_SAMPLES
+        cgi
+        helloworld
+        dns
+        detach
+        default-loop
+        idle-basic
+        idle-compute
+        interfaces
+        locks
+        onchange
+        pipe-echo-server
+        ref-timer
+        spawn
+        tcp-echo-server
+        thread-create
+        udp-dhcp
+        uvcat
+        uvstop
+        uvtee
+        )
+IF (NOT WIN32)
+    list(APPEND SIMPLE_SAMPLES
+            signal
+            progress
+            queue-cancel
+            queue-work
+            tty
+            tty-gravity
+            )
+ENDIF()
+
+foreach (X IN LISTS SIMPLE_SAMPLES)
+    add_executable(${X} ${X}/main.c)
+    target_link_libraries(${X} uv_a)
+endforeach ()
+
+
+FIND_PACKAGE(CURL)
+IF(CURL_FOUND)
+    add_executable(uvwget uvwget/main.c)
+    target_link_libraries(uvwget uv_a ${CURL_LIBRARIES})
+ENDIF(CURL_FOUND)

docs/code/cgi/main.c

@@ -15,8 +15,8 @@ void cleanup_handles(uv_process_t *req, int64_t exit_status, int term_signal) {
 }
 
 void invoke_cgi_script(uv_tcp_t *client) {
-    size_t size = 500;
-    char path[size];
+    char path[500];
+    size_t size = sizeof(path);
     uv_exepath(path, &size);
     strcpy(path + (strlen(path) - strlen("cgi")), "tick");
 

docs/code/default-loop/main.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <uv.h>
+
+int main() {
+    uv_loop_t *loop = uv_default_loop();
+
+    printf("Default loop.\n");
+    uv_run(loop, UV_RUN_DEFAULT);
+
+    uv_loop_close(loop);
+    return 0;
+}

docs/code/interfaces/main.c

@@ -11,17 +11,17 @@ int main() {
 
     printf("Number of interfaces: %d\n", count);
     while (i--) {
-        uv_interface_address_t interface = info[i];
+        uv_interface_address_t interface_a = info[i];
 
-        printf("Name: %s\n", interface.name);
-        printf("Internal? %s\n", interface.is_internal ? "Yes" : "No");
+        printf("Name: %s\n", interface_a.name);
+        printf("Internal? %s\n", interface_a.is_internal ? "Yes" : "No");
         
-        if (interface.address.address4.sin_family == AF_INET) {
-            uv_ip4_name(&interface.address.address4, buf, sizeof(buf));
+        if (interface_a.address.address4.sin_family == AF_INET) {
+            uv_ip4_name(&interface_a.address.address4, buf, sizeof(buf));
             printf("IPv4 address: %s\n", buf);
         }
-        else if (interface.address.address4.sin_family == AF_INET6) {
-            uv_ip6_name(&interface.address.address6, buf, sizeof(buf));
+        else if (interface_a.address.address4.sin_family == AF_INET6) {
+            uv_ip6_name(&interface_a.address.address6, buf, sizeof(buf));
             printf("IPv6 address: %s\n", buf);
         }
 

docs/code/thread-create/main.c

@@ -1,5 +1,4 @@
 #include <stdio.h>
-#include <unistd.h>
 
 #include <uv.h>
 
@@ -7,7 +6,7 @@ void hare(void *arg) {
     int tracklen = *((int *) arg);
     while (tracklen) {
         tracklen--;
-        sleep(1);
+        uv_sleep(1000);
         fprintf(stderr, "Hare ran another step\n");
     }
     fprintf(stderr, "Hare done running!\n");
@@ -18,7 +17,7 @@ void tortoise(void *arg) {
     while (tracklen) {
         tracklen--;
         fprintf(stderr, "Tortoise ran another step\n");
-        sleep(3);
+        uv_sleep(3000);
     }
     fprintf(stderr, "Tortoise done running!\n");
 }

docs/code/tty/main.c

@@ -5,25 +5,27 @@
 
 uv_loop_t *loop;
 uv_tty_t tty;
-int main() {
-    loop = uv_default_loop();
 
+int main() {
+    uv_write_t req;
+    uv_buf_t buf;
+    uv_write_t req1;
+    uv_buf_t buf1;
+
+    loop = uv_default_loop();
     uv_tty_init(loop, &tty, STDOUT_FILENO, 0);
     uv_tty_set_mode(&tty, UV_TTY_MODE_NORMAL);
     
     if (uv_guess_handle(1) == UV_TTY) {
-        uv_write_t req;
-        uv_buf_t buf;
-        buf.base = "\033[41;37m";
-        buf.len = strlen(buf.base);
-        uv_write(&req, (uv_stream_t*) &tty, &buf, 1, NULL);
+        buf1.base = "\033[41;37m";
+        buf1.len = strlen(buf1.base);
+        uv_write(&req1, (uv_stream_t*) &tty, &buf1, 1, NULL);
     }
 
-    uv_write_t req;
-    uv_buf_t buf;
     buf.base = "Hello TTY\n";
     buf.len = strlen(buf.base);
     uv_write(&req, (uv_stream_t*) &tty, &buf, 1, NULL);
+
     uv_tty_reset_mode();
     return uv_run(loop, UV_RUN_DEFAULT);
 }

docs/code/udp-dhcp/main.c

@@ -53,7 +53,8 @@ uv_buf_t make_discover_msg() {
     // HOPS
     buffer.base[3] = 0x0;
     // XID 4 bytes
-    buffer.base[4] = (unsigned int) random();
+    if (uv_random(NULL, NULL, &buffer.base[4], 4, 0, NULL))
+      abort();
     // SECS
     buffer.base[8] = 0x0;
     // FLAGS

docs/code/uvcat/main.c

@@ -1,7 +1,6 @@
 #include <assert.h>
 #include <stdio.h>
 #include <fcntl.h>
-#include <unistd.h>
 #include <uv.h>
 
 void on_read(uv_fs_t *req);

docs/code/uvtee/main.c

@@ -1,6 +1,5 @@
 #include <stdio.h>
 #include <fcntl.h>
-#include <unistd.h>
 #include <string.h>
 #include <stdlib.h>
 

docs/requirements.txt

@@ -1,42 +1,36 @@
 # primary
-Sphinx==3.5.4
+furo==2023.5.20
+Sphinx==6.1.3
 
 # dependencies
-alabaster==0.7.12
-appdirs==1.4.3
-Babel==2.9.0
-CacheControl==0.12.6
-certifi==2019.11.28
-chardet==3.0.4
-colorama==0.4.3
-contextlib2==0.6.0
-distlib==0.3.0
-distro==1.4.0
-docutils==0.16
-html5lib==1.0.1
-idna==2.8
-imagesize==1.2.0
-ipaddr==2.2.0
-Jinja2==2.11.3
-lockfile==0.12.2
-MarkupSafe==1.1.1
-msgpack==0.6.2
-packaging==20.3
-pep517==0.8.2
-progress==1.5
-Pygments==2.8.1
-pyparsing==2.4.6
-pytoml==0.1.21
-pytz==2021.1
-requests==2.22.0
-retrying==1.3.3
-six==1.14.0
-snowballstemmer==2.1.0
-sphinxcontrib-applehelp==1.0.2
+alabaster==0.7.13
+Babel==2.11.0
+beautifulsoup4==4.12.2
+certifi==2022.12.7
+charset-normalizer==3.0.1
+colorama==0.4.6
+docutils==0.19
+idna==3.4
+imagesize==1.4.1
+importlib-metadata==6.0.0
+Jinja2==3.1.2
+livereload==2.6.3
+MarkupSafe==2.1.2
+packaging==23.0
+Pygments==2.14.0
+pytz==2022.7.1
+requests==2.28.2
+six==1.16.0
+snowballstemmer==2.2.0
+soupsieve==2.4.1
+sphinx-autobuild==2021.3.14
+sphinx-basic-ng==1.0.0b2
 sphinxcontrib-devhelp==1.0.2
-sphinxcontrib-htmlhelp==1.0.3
+sphinxcontrib-htmlhelp==2.0.0
 sphinxcontrib-jsmath==1.0.1
 sphinxcontrib-qthelp==1.0.3
-sphinxcontrib-serializinghtml==1.1.4
-urllib3==1.25.8
-webencodings==0.5.1
+sphinxcontrib-serializinghtml==1.1.5
+sphinxcontrib.applehelp==1.0.3
+tornado==6.3.2
+urllib3==1.26.14
+zipp==3.11.0

docs/src/conf.py

@@ -118,7 +118,7 @@ pygments_style = 'sphinx'
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'nature'
+html_theme = 'furo'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the

docs/src/design.rst

@@ -60,16 +60,15 @@ stages of a loop iteration:
     :align: center
 
 
-#. The loop concept of 'now' is updated. The event loop caches the current time at the start of
-   the event loop tick in order to reduce the number of time-related system calls.
+#. The loop concept of 'now' is initially set.
+
+#. Due timers are run if the loop was run with ``UV_RUN_DEFAULT``. All active timers scheduled
+   for a time before the loop's concept of *now* get their callbacks called.
 
 #. If the loop is *alive*  an iteration is started, otherwise the loop will exit immediately. So,
    when is a loop considered to be *alive*? If a loop has active and ref'd handles, active
    requests or closing handles it's considered to be *alive*.
 
-#. Due timers are run. All active timers scheduled for a time before the loop's concept of *now*
-   get their callbacks called.
-
 #. Pending callbacks are called. All I/O callbacks are called right after polling for I/O, for the
    most part. There are cases, however, in which calling such a callback is deferred for the next
    loop iteration. If the previous iteration deferred any I/O callback it will be run at this point.
@@ -101,9 +100,11 @@ stages of a loop iteration:
 #. Close callbacks are called. If a handle was closed by calling :c:func:`uv_close` it will
    get the close callback called.
 
-#. Special case in case the loop was run with ``UV_RUN_ONCE``, as it implies forward progress.
-   It's possible that no I/O callbacks were fired after blocking for I/O, but some time has passed
-   so there might be timers which are due, those timers get their callbacks called.
+#. The loop concept of 'now' is updated.
+
+#. Due timers are run. Note that 'now' is not updated again until the next loop iteration.
+   So if a timer became due while other timers were being processed, it won't be run until
+   the following event loop iteration.
 
 #. Iteration ends. If the loop was run with ``UV_RUN_NOWAIT`` or ``UV_RUN_ONCE`` modes the
    iteration ends and :c:func:`uv_run` will return. If the loop was run with ``UV_RUN_DEFAULT``

docs/src/errors.rst

@@ -339,6 +339,9 @@ Error constants
 
     socket type not supported
 
+.. c:macro:: UV_EUNATCH
+
+    protocol driver not attached
 
 API
 ---

docs/src/fs.rst

@@ -12,6 +12,15 @@ otherwise it will be performed asynchronously.
 All file operations are run on the threadpool. See :ref:`threadpool` for information
 on the threadpool size.
 
+Starting with libuv v1.45.0, some file operations on Linux are handed off to
+`io_uring <https://en.wikipedia.org/wiki/Io_uring>` when possible. Apart from
+a (sometimes significant) increase in throughput there should be no change in
+observable behavior. Libuv reverts to using its threadpool when the necessary
+kernel features are unavailable or unsuitable. Starting with libuv v1.49.0 this
+behavior was reverted and Libuv on Linux by default will be using the threadpool
+again. In order to enable io_uring the :c:type:`uv_loop_t` instance must be
+configured with the :c:type:`UV_LOOP_ENABLE_IO_URING_SQPOLL` option.
+
 .. note::
      On Windows `uv_fs_*` functions use utf-8 encoding.
 
@@ -24,7 +33,8 @@ Data types
 
 .. c:type:: uv_timespec_t
 
-    Portable equivalent of ``struct timespec``.
+    Y2K38-unsafe data type for storing times with nanosecond resolution.
+    Will be replaced with :c:type:`uv_timespec64_t` in libuv v2.0.
 
     ::
 
@@ -122,10 +132,9 @@ Data types
             uint64_t f_spare[4];
         } uv_statfs_t;
 
-.. c:enum:: uv_dirent_t
+.. c:enum:: uv_dirent_type_t
 
-    Cross platform (reduced) equivalent of ``struct dirent``.
-    Used in :c:func:`uv_fs_scandir_next`.
+    Type of dirent.
 
     ::
 
@@ -140,6 +149,14 @@ Data types
             UV_DIRENT_BLOCK
         } uv_dirent_type_t;
 
+
+.. c:type:: uv_dirent_t
+
+    Cross platform (reduced) equivalent of ``struct dirent``.
+    Used in :c:func:`uv_fs_scandir_next`.
+
+    ::
+
         typedef struct uv_dirent_s {
             const char* name;
             uv_dirent_type_t type;
@@ -160,6 +177,10 @@ Data types
             size_t nentries;
         } uv_dir_t;
 
+.. c:type:: void (*uv_fs_cb)(uv_fs_t* req)
+
+    Callback called when a request is completed asynchronously.
+
 
 Public members
 ^^^^^^^^^^^^^^
@@ -218,7 +239,8 @@ API
 
 .. c:function:: int uv_fs_read(uv_loop_t* loop, uv_fs_t* req, uv_file file, const uv_buf_t bufs[], unsigned int nbufs, int64_t offset, uv_fs_cb cb)
 
-    Equivalent to :man:`preadv(2)`.
+    Equivalent to :man:`preadv(2)`. If the `offset` argument is `-1`, then
+    the current file offset is used and updated.
 
     .. warning::
         On Windows, under non-MSVC environments (e.g. when GCC or Clang is used
@@ -231,7 +253,8 @@ API
 
 .. c:function:: int uv_fs_write(uv_loop_t* loop, uv_fs_t* req, uv_file file, const uv_buf_t bufs[], unsigned int nbufs, int64_t offset, uv_fs_cb cb)
 
-    Equivalent to :man:`pwritev(2)`.
+    Equivalent to :man:`pwritev(2)`. If the `offset` argument is `-1`, then
+    the current file offset is used and updated.
 
     .. warning::
         On Windows, under non-MSVC environments (e.g. when GCC or Clang is used
@@ -407,6 +430,12 @@ API
 
     Equivalent to :man:`utime(2)`, :man:`futimes(3)` and :man:`lutimes(3)` respectively.
 
+    Passing `UV_FS_UTIME_NOW` as the atime or mtime sets the timestamp to the
+    current time.
+
+    Passing `UV_FS_UTIME_OMIT` as the atime or mtime leaves the timestamp
+    untouched.
+
     .. note::
       z/OS: `uv_fs_lutime()` is not implemented for z/OS. It can still be called but will return
       ``UV_ENOSYS``.
@@ -441,7 +470,7 @@ API
 
 .. c:function:: int uv_fs_realpath(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb)
 
-    Equivalent to :man:`realpath(3)` on Unix. Windows uses `GetFinalPathNameByHandle <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfinalpathnamebyhandlea>`_.
+    Equivalent to :man:`realpath(3)` on Unix. Windows uses `GetFinalPathNameByHandleW <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfinalpathnamebyhandlew>`_.
     The resulting string is stored in `req->ptr`.
 
     .. warning::
@@ -463,10 +492,6 @@ API
         The background story and some more details on these issues can be checked
         `here <https://github.com/nodejs/node/issues/7726>`_.
 
-    .. note::
-      This function is not implemented on Windows XP and Windows Server 2003.
-      On these systems, UV_ENOSYS is returned.
-
     .. versionadded:: 1.8.0
 
 .. c:function:: int uv_fs_chown(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_uid_t uid, uv_gid_t gid, uv_fs_cb cb)
@@ -644,7 +669,7 @@ File open constants
 
     .. note::
         `UV_FS_O_RANDOM` is only supported on Windows via
-        `FILE_FLAG_RANDOM_ACCESS <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea>`_.
+        `FILE_FLAG_RANDOM_ACCESS <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew>`_.
 
 .. c:macro:: UV_FS_O_RDONLY
 
@@ -661,7 +686,7 @@ File open constants
 
     .. note::
         `UV_FS_O_SEQUENTIAL` is only supported on Windows via
-        `FILE_FLAG_SEQUENTIAL_SCAN <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea>`_.
+        `FILE_FLAG_SEQUENTIAL_SCAN <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew>`_.
 
 .. c:macro:: UV_FS_O_SHORT_LIVED
 
@@ -669,7 +694,7 @@ File open constants
 
     .. note::
         `UV_FS_O_SHORT_LIVED` is only supported on Windows via
-        `FILE_ATTRIBUTE_TEMPORARY <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea>`_.
+        `FILE_ATTRIBUTE_TEMPORARY <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew>`_.
 
 .. c:macro:: UV_FS_O_SYMLINK
 
@@ -690,7 +715,7 @@ File open constants
 
     .. note::
         `UV_FS_O_TEMPORARY` is only supported on Windows via
-        `FILE_ATTRIBUTE_TEMPORARY <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea>`_.
+        `FILE_ATTRIBUTE_TEMPORARY <https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew>`_.
 
 .. c:macro:: UV_FS_O_TRUNC
 

docs/src/fs_event.rst

@@ -39,11 +39,20 @@ Data types
 .. c:type:: void (*uv_fs_event_cb)(uv_fs_event_t* handle, const char* filename, int events, int status)
 
     Callback passed to :c:func:`uv_fs_event_start` which will be called repeatedly
-    after the handle is started. If the handle was started with a directory the
-    `filename` parameter will be a relative path to a file contained in the directory.
-    The `events` parameter is an ORed mask of :c:type:`uv_fs_event` elements.
+    after the handle is started.
 
-.. c:type:: uv_fs_event
+    If the handle was started with a directory the `filename` parameter will
+    be a relative path to a file contained in the directory, or `NULL` if the
+    file name cannot be determined.
+
+    The `events` parameter is an ORed mask of :c:enum:`uv_fs_event` elements.
+
+.. note::
+   For FreeBSD path could sometimes be `NULL` due to a kernel bug.
+
+    .. _Reference: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197695
+
+.. c:enum:: uv_fs_event
 
     Event types that :c:type:`uv_fs_event_t` handles monitor.
 
@@ -54,7 +63,7 @@ Data types
             UV_CHANGE = 2
         };
 
-.. c:type:: uv_fs_event_flags
+.. c:enum:: uv_fs_event_flags
 
     Flags that can be passed to :c:func:`uv_fs_event_start` to control its
     behavior.
@@ -105,10 +114,13 @@ API
 .. c:function:: int uv_fs_event_start(uv_fs_event_t* handle, uv_fs_event_cb cb, const char* path, unsigned int flags)
 
     Start the handle with the given callback, which will watch the specified
-    `path` for changes. `flags` can be an ORed mask of :c:type:`uv_fs_event_flags`.
+    `path` for changes. `flags` can be an ORed mask of :c:enum:`uv_fs_event_flags`.
 
     .. note:: Currently the only supported flag is ``UV_FS_EVENT_RECURSIVE`` and
               only on OSX and Windows.
+    .. note:: On macOS, events collected by the OS immediately before calling
+              ``uv_fs_event_start`` might be reported to the `uv_fs_event_cb`
+              callback.
 
 .. c:function:: int uv_fs_event_stop(uv_fs_event_t* handle)
 

docs/src/guide/basics.rst

@@ -71,7 +71,7 @@ architecture of libuv and its background. If you have no prior experience with
 either libuv or libev, it is a quick, useful watch.
 
 libuv's event loop is explained in more detail in the `documentation
-<http://docs.libuv.org/en/v1.x/design.html#the-i-o-loop>`_.
+<https://docs.libuv.org/en/v1.x/design.html#the-i-o-loop>`_.
 
 .. raw:: html
 
@@ -109,6 +109,11 @@ A default loop is provided by libuv and can be accessed using
 ``uv_default_loop()``. You should use this loop if you only want a single
 loop.
 
+.. rubric:: default-loop/main.c
+.. literalinclude:: ../../code/default-loop/main.c
+    :language: c
+    :linenos:
+
 .. note::
 
     node.js uses the default loop as its main loop. If you are writing bindings
@@ -121,7 +126,7 @@ Error handling
 
 Initialization functions or synchronous functions which may fail return a negative number on error. Async functions that may fail will pass a status parameter to their callbacks. The error messages are defined as ``UV_E*`` `constants`_.
 
-.. _constants: http://docs.libuv.org/en/v1.x/errors.html#error-constants
+.. _constants: https://docs.libuv.org/en/v1.x/errors.html#error-constants
 
 You can use the ``uv_strerror(int)`` and ``uv_err_name(int)`` functions
 to get a ``const char *`` describing the error or the error name respectively.
@@ -169,6 +174,16 @@ handle is used for.
     typedef struct uv_udp_send_s uv_udp_send_t;
     typedef struct uv_fs_s uv_fs_t;
     typedef struct uv_work_s uv_work_t;
+    typedef struct uv_random_s uv_random_t;
+
+    /* None of the above. */
+    typedef struct uv_env_item_s uv_env_item_t;
+    typedef struct uv_cpu_info_s uv_cpu_info_t;
+    typedef struct uv_interface_address_s uv_interface_address_t;
+    typedef struct uv_dirent_s uv_dirent_t;
+    typedef struct uv_passwd_s uv_passwd_t;
+    typedef struct uv_utsname_s uv_utsname_t;
+    typedef struct uv_statfs_s uv_statfs_t;
 
 
 Handles represent long-lived objects. Async operations on such handles are

docs/src/guide/filesystem.rst

@@ -13,7 +13,7 @@ Simple filesystem read/write is achieved using the ``uv_fs_*`` functions and the
     watchers registered with the event loop when application interaction is
     required.
 
-.. _thread pool: http://docs.libuv.org/en/v1.x/threadpool.html#thread-pool-work-scheduling
+.. _thread pool: https://docs.libuv.org/en/v1.x/threadpool.html#thread-pool-work-scheduling
 
 All filesystem functions have two forms - *synchronous* and *asynchronous*.
 
@@ -66,7 +66,7 @@ The ``result`` field of a ``uv_fs_t`` is the file descriptor in case of the
 .. literalinclude:: ../../code/uvcat/main.c
     :language: c
     :linenos:
-    :lines: 26-40
+    :lines: 26-39
     :emphasize-lines: 2,8,12
 
 In the case of a read call, you should pass an *initialized* buffer which will
@@ -91,7 +91,7 @@ callbacks.
 .. literalinclude:: ../../code/uvcat/main.c
     :language: c
     :linenos:
-    :lines: 16-24
+    :lines: 17-24
     :emphasize-lines: 6
 
 .. warning::
@@ -132,6 +132,7 @@ same patterns as the read/write/open calls, returning the result in the
     int uv_fs_copyfile(uv_loop_t* loop, uv_fs_t* req, const char* path, const char* new_path, int flags, uv_fs_cb cb);
     int uv_fs_mkdir(uv_loop_t* loop, uv_fs_t* req, const char* path, int mode, uv_fs_cb cb);
     int uv_fs_mkdtemp(uv_loop_t* loop, uv_fs_t* req, const char* tpl, uv_fs_cb cb);
+    int uv_fs_mkstemp(uv_loop_t* loop, uv_fs_t* req, const char* tpl, uv_fs_cb cb);
     int uv_fs_rmdir(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb);
     int uv_fs_scandir(uv_loop_t* loop, uv_fs_t* req, const char* path, int flags, uv_fs_cb cb);
     int uv_fs_scandir_next(uv_fs_t* req, uv_dirent_t* ent);
@@ -149,6 +150,7 @@ same patterns as the read/write/open calls, returning the result in the
     int uv_fs_chmod(uv_loop_t* loop, uv_fs_t* req, const char* path, int mode, uv_fs_cb cb);
     int uv_fs_utime(uv_loop_t* loop, uv_fs_t* req, const char* path, double atime, double mtime, uv_fs_cb cb);
     int uv_fs_futime(uv_loop_t* loop, uv_fs_t* req, uv_file file, double atime, double mtime, uv_fs_cb cb);
+    int uv_fs_lutime(uv_loop_t* loop, uv_fs_t* req, const char* path, double atime, double mtime, uv_fs_cb cb);
     int uv_fs_lstat(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb);
     int uv_fs_link(uv_loop_t* loop, uv_fs_t* req, const char* path, const char* new_path, uv_fs_cb cb);
     int uv_fs_symlink(uv_loop_t* loop, uv_fs_t* req, const char* path, const char* new_path, int flags, uv_fs_cb cb);
@@ -158,6 +160,7 @@ same patterns as the read/write/open calls, returning the result in the
     int uv_fs_chown(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_uid_t uid, uv_gid_t gid, uv_fs_cb cb);
     int uv_fs_fchown(uv_loop_t* loop, uv_fs_t* req, uv_file file, uv_uid_t uid, uv_gid_t gid, uv_fs_cb cb);
     int uv_fs_lchown(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_uid_t uid, uv_gid_t gid, uv_fs_cb cb);
+    int uv_fs_statfs(uv_loop_t* loop, uv_fs_t* req, const char* path, uv_fs_cb cb);
 
 
 .. _buffers-and-streams:
@@ -190,7 +193,7 @@ and freed by the application.
 
 .. ERROR::
 
-    THIS PROGRAM DOES NOT ALWAYS WORK, NEED SOMETHING BETTER**
+    **THIS PROGRAM DOES NOT ALWAYS WORK, NEED SOMETHING BETTER**
 
 To demonstrate streams we will need to use ``uv_pipe_t``. This allows streaming
 local files [#]_. Here is a simple tee utility using libuv.  Doing all operations
@@ -209,7 +212,7 @@ opened as bidirectional by default.
 .. literalinclude:: ../../code/uvtee/main.c
     :language: c
     :linenos:
-    :lines: 61-80
+    :lines: 62-80
     :emphasize-lines: 4,5,15
 
 The third argument of ``uv_pipe_init()`` should be set to 1 for IPC using named
@@ -285,6 +288,13 @@ a command whenever any of the watched files change::
 
     ./onchange <command> <file1> [file2] ...
 
+.. note::
+
+    Currently this example only works on OSX and Windows.
+    Refer to the `notes of uv_fs_event_start`_ function.
+
+.. _notes of uv_fs_event_start: https://docs.libuv.org/en/v1.x/fs_event.html#c.uv_fs_event_start
+
 The file change notification is started using ``uv_fs_event_init()``:
 
 .. rubric:: onchange/main.c - The setup
@@ -319,9 +329,9 @@ The callback will receive the following arguments:
   #. ``const char *filename`` - If a directory is being monitored, this is the
      file which was changed. Only non-``null`` on Linux and Windows. May be ``null``
      even on those platforms.
-  #. ``int flags`` - one of ``UV_RENAME`` or ``UV_CHANGE``, or a bitwise OR of
+  #. ``int events`` - one of ``UV_RENAME`` or ``UV_CHANGE``, or a bitwise OR of
      both.
-  #. ``int status`` - Currently 0.
+  #. ``int status`` - If ``status < 0``, there is an :ref:`libuv error<libuv-error-handling>`.
 
 In our example we simply print the arguments and run the command using
 ``system()``.

docs/src/guide/introduction.rst

@@ -8,7 +8,7 @@ It is meant to cover the main areas of libuv, but is not a comprehensive
 reference discussing every function and data structure. The `official libuv
 documentation`_ may be consulted for full details.
 
-.. _official libuv documentation: http://docs.libuv.org/en/v1.x/
+.. _official libuv documentation: https://docs.libuv.org/en/v1.x/
 
 This book is still a work in progress, so sections may be incomplete, but
 I hope you will enjoy it as it grows.
@@ -47,25 +47,23 @@ Since then libuv has continued to mature and become a high quality standalone
 library for system programming. Users outside of node.js include Mozilla's
 Rust_ programming language, and a variety_ of language bindings.
 
-This book and the code is based on libuv version `v1.3.0`_.
+This book and the code is based on libuv version `v1.42.0`_.
 
 Code
 ----
 
-All the code from this book is included as part of the source of the book on
-Github. `Clone`_/`Download`_ the book, then build libuv::
+All the example code and the source of the book is included as part of
+the libuv_ project on GitHub.
+Clone or Download libuv_, then build it::
 
-    cd libuv
-    ./autogen.sh
+    sh autogen.sh
     ./configure
     make
 
 There is no need to ``make install``. To build the examples run ``make`` in the
-``code/`` directory.
+``docs/code/`` directory.
 
-.. _Clone: https://github.com/nikhilm/uvbook
-.. _Download: https://github.com/nikhilm/uvbook/downloads
-.. _v1.3.0: https://github.com/libuv/libuv/tags
+.. _v1.42.0: https://github.com/libuv/libuv/releases/tag/v1.42.0
 .. _V8: https://v8.dev
 .. _libev: http://software.schmorp.de/pkg/libev.html
 .. _libuv: https://github.com/libuv/libuv

docs/src/guide/networking.rst

@@ -164,7 +164,7 @@ IPv6 stack only
 
 IPv6 sockets can be used for both IPv4 and IPv6 communication. If you want to
 restrict the socket to IPv6 only, pass the ``UV_UDP_IPV6ONLY`` flag to
-``uv_udp_bind`` [#]_.
+``uv_udp_bind``.
 
 Multicast
 ~~~~~~~~~
@@ -250,7 +250,6 @@ times, with each address being reported once.
 ----
 
 .. [#] https://beej.us/guide/bgnet/html/#broadcast-packetshello-world
-.. [#] on Windows only supported on Windows Vista and later.
 .. [#] https://www.tldp.org/HOWTO/Multicast-HOWTO-6.html#ss6.1
 .. [#] libuv use the system ``getaddrinfo`` in the libuv threadpool. libuv
     v0.8.0 and earlier also included c-ares_ as an alternative, but this has been

docs/src/guide/processes.rst

@@ -53,6 +53,8 @@ ID of the child process.
 The exit callback will be invoked with the *exit status* and the type of *signal*
 which caused the exit.
 
+Note that it is important **not** to call ``uv_close`` before the exit callback.
+
 .. rubric:: spawn/main.c
 .. literalinclude:: ../../code/spawn/main.c
     :language: c
@@ -126,7 +128,8 @@ of ``uv_kill`` is::
 
 For processes started using libuv, you may use ``uv_process_kill`` instead,
 which accepts the ``uv_process_t`` watcher as the first argument, rather than
-the pid. In this case, **remember to call** ``uv_close`` on the watcher.
+the pid. In this case, **remember to call** ``uv_close`` on the watcher _after_
+the exit callback has been called.
 
 Signals
 -------
@@ -330,7 +333,7 @@ to hand off their I/O to other processes. Applications include load-balancing
 servers, worker processes and other ways to make optimum use of CPU. libuv only
 supports sending **TCP sockets or other pipes** over pipes for now.
 
-To demonstrate, we will look at a echo server implementation that hands of
+To demonstrate, we will look at an echo server implementation that hands off
 clients to worker processes in a round-robin fashion. This program is a bit
 involved, and while only snippets are included in the book, it is recommended
 to read the full code to really understand it.

docs/src/guide/utilities.rst

@@ -220,7 +220,7 @@ progress with the download whenever libuv notifies of I/O readiness.
 .. literalinclude:: ../../code/uvwget/main.c
     :language: c
     :linenos:
-    :lines: 1-9,140-
+    :lines: 1-9,142-
     :emphasize-lines: 7,21,24-25
 
 The way each library is integrated with libuv will vary. In the case of
@@ -235,7 +235,7 @@ Our downloader is to be invoked as::
 
     $ ./uvwget [url1] [url2] ...
 
-So we add each argument as an URL
+So we add each argument as a URL
 
 .. rubric:: uvwget/main.c - Adding urls
 .. literalinclude:: ../../code/uvwget/main.c
@@ -363,7 +363,7 @@ to get the error message.
 argument. ``init_plugin_function`` is a function pointer to the sort of
 function we are looking for in the application's plugins.
 
-.. _shared libraries: https://en.wikipedia.org/wiki/Shared_library#Shared_libraries
+.. _shared libraries: https://en.wikipedia.org/wiki/Shared_library
 
 TTY
 ---

docs/src/handle.rst

@@ -94,7 +94,7 @@ Public members
 
 .. c:member:: uv_handle_type uv_handle_t.type
 
-    The :c:type:`uv_handle_type`, indicating the type of the underlying handle. Readonly.
+    The :c:enum:`uv_handle_type`, indicating the type of the underlying handle. Readonly.
 
 .. c:member:: void* uv_handle_t.data
 
@@ -153,6 +153,9 @@ API
     In-progress requests, like uv_connect_t or uv_write_t, are cancelled and
     have their callbacks called asynchronously with status=UV_ECANCELED.
 
+    `close_cb` can be `NULL` in cases where no cleanup or deallocation is
+    necessary.
+
 .. c:function:: void uv_ref(uv_handle_t* handle)
 
     Reference the given handle. References are idempotent, that is, if a handle
@@ -245,7 +248,7 @@ just for some handle types.
 
     .. versionadded:: 1.19.0
 
-.. c:function:: void* uv_handle_set_data(uv_handle_t* handle, void* data)
+.. c:function:: void uv_handle_set_data(uv_handle_t* handle, void* data)
 
     Sets `handle->data` to `data`.
 

docs/src/index.rst

@@ -58,5 +58,5 @@ libuv can be downloaded from `here <https://dist.libuv.org/dist/>`_.
 Installation
 ------------
 
-Installation instructions can be found in `the README <https://github.com/libuv/libuv/blob/master/README.md>`_.
+Installation instructions can be found in the `README <https://github.com/libuv/libuv/blob/master/README.md>`_.
 

docs/src/loop.rst

@@ -16,6 +16,19 @@ Data types
 
     Loop data type.
 
+.. c:enum:: uv_loop_option
+
+    Additional loop options.
+    See :c:func:`uv_loop_configure`.
+
+    ::
+
+        typedef enum {
+            UV_LOOP_BLOCK_SIGNAL = 0,
+            UV_METRICS_IDLE_TIME,
+            UV_LOOP_USE_IO_URING_SQPOLL
+        } uv_loop_option;
+
 .. c:enum:: uv_run_mode
 
     Mode used to run the loop with :c:func:`uv_run`.
@@ -73,8 +86,13 @@ API
 
       This option is necessary to use :c:func:`uv_metrics_idle_time`.
 
+    - UV_LOOP_ENABLE_IO_URING_SQPOLL: Enable SQPOLL io_uring instance to handle
+      asynchronous file system operations.
+
     .. versionchanged:: 1.39.0 added the UV_METRICS_IDLE_TIME option.
 
+    .. versionchanged:: 1.49.0 added the UV_LOOP_ENABLE_IO_URING_SQPOLL option.
+
 .. c:function:: int uv_loop_close(uv_loop_t* loop)
 
     Releases all internal loop resources. Call this function only when the loop
@@ -238,7 +256,7 @@ API
 
     .. versionadded:: 1.19.0
 
-.. c:function:: void* uv_loop_set_data(uv_loop_t* loop, void* data)
+.. c:function:: void uv_loop_set_data(uv_loop_t* loop, void* data)
 
     Sets `loop->data` to `data`.
 

docs/src/metrics.rst

@@ -4,8 +4,46 @@
 Metrics operations
 ======================
 
-libuv provides a metrics API to track the amount of time the event loop has
-spent idle in the kernel's event provider.
+libuv provides a metrics API to track various internal operations of the event
+loop.
+
+
+Data types
+----------
+
+.. c:type:: uv_metrics_t
+
+    The struct that contains event loop metrics. It is recommended to retrieve
+    these metrics in a :c:type:`uv_prepare_cb` in order to make sure there are
+    no inconsistencies with the metrics counters.
+
+    ::
+
+        typedef struct {
+            uint64_t loop_count;
+            uint64_t events;
+            uint64_t events_waiting;
+            /* private */
+            uint64_t* reserved[13];
+        } uv_metrics_t;
+
+
+Public members
+^^^^^^^^^^^^^^
+
+.. c:member:: uint64_t uv_metrics_t.loop_count
+
+    Number of event loop iterations.
+
+.. c:member:: uint64_t uv_metrics_t.events
+
+    Number of events that have been processed by the event handler.
+
+.. c:member:: uint64_t uv_metrics_t.events_waiting
+
+    Number of events that were waiting to be processed when the event provider
+    was called.
+
 
 API
 ---
@@ -25,3 +63,9 @@ API
         :c:type:`UV_METRICS_IDLE_TIME`.
 
     .. versionadded:: 1.39.0
+
+.. c:function:: int uv_metrics_info(uv_loop_t* loop, uv_metrics_t* metrics)
+
+    Copy the current set of event loop metrics to the ``metrics`` pointer.
+
+    .. versionadded:: 1.45.0

docs/src/misc.rst

@@ -73,7 +73,8 @@ Data types
 
 .. c:type:: uv_timeval_t
 
-    Data type for storing times.
+    Y2K38-unsafe data type for storing times with microsecond resolution.
+    Will be replaced with :c:type:`uv_timeval64_t` in libuv v2.0.
 
     ::
 
@@ -84,7 +85,7 @@ Data types
 
 .. c:type:: uv_timeval64_t
 
-    Alternative data type for storing times.
+    Y2K38-safe data type for storing times with microsecond resolution.
 
     ::
 
@@ -93,6 +94,28 @@ Data types
             int32_t tv_usec;
         } uv_timeval64_t;
 
+.. c:type:: uv_timespec64_t
+
+    Y2K38-safe data type for storing times with nanosecond resolution.
+
+    ::
+
+        typedef struct {
+            int64_t tv_sec;
+            int32_t tv_nsec;
+        } uv_timespec64_t;
+
+.. c:enum:: uv_clock_id
+
+    Clock source for :c:func:`uv_clock_gettime`.
+
+    ::
+
+        typedef enum {
+          UV_CLOCK_MONOTONIC,
+          UV_CLOCK_REALTIME
+        } uv_clock_id;
+
 .. c:type:: uv_rusage_t
 
     Data type for resource usage results.
@@ -119,7 +142,10 @@ Data types
         } uv_rusage_t;
 
     Members marked with `(X)` are unsupported on Windows.
-    See :man:`getrusage(2)` for supported fields on Unix
+    See :man:`getrusage(2)` for supported fields on UNIX-like platforms.
+
+    The maximum resident set size is reported in kilobytes, the unit most
+    platforms use natively.
 
 .. c:type:: uv_cpu_info_t
 
@@ -173,6 +199,18 @@ Data types
             char* homedir;
         } uv_passwd_t;
 
+.. c:type:: uv_group_t
+
+    Data type for group file information.
+
+    ::
+
+        typedef struct uv_group_s {
+          char* groupname;
+          unsigned long gid;
+          char** members;
+        } uv_group_t;
+
 .. c:type:: uv_utsname_t
 
     Data type for operating system name and version information.
@@ -211,7 +249,7 @@ API
     type of the stdio streams.
 
     For :man:`isatty(3)` equivalent functionality use this function and test
-    for ``UV_TTY``.
+    for `UV_TTY`.
 
 .. c:function:: int uv_replace_allocator(uv_malloc_func malloc_func, uv_realloc_func realloc_func, uv_calloc_func calloc_func, uv_free_func free_func)
 
@@ -225,8 +263,8 @@ API
     after all resources have been freed and thus libuv doesn't reference
     any allocated memory chunk.
 
-    On success, it returns 0, if any of the function pointers is NULL it
-    returns UV_EINVAL.
+    On success, it returns 0, if any of the function pointers is `NULL` it
+    returns `UV_EINVAL`.
 
     .. warning:: There is no protection against changing the allocator multiple
                  times. If the user changes it they are responsible for making
@@ -312,7 +350,7 @@ API
 
 .. c:function:: int uv_uptime(double* uptime)
 
-    Gets the current system uptime.
+    Gets the current system uptime. Depending on the system full or fractional seconds are returned.
 
 .. c:function:: int uv_getrusage(uv_rusage_t* rusage)
 
@@ -322,6 +360,17 @@ API
         On Windows not all fields are set, the unsupported fields are filled with zeroes.
         See :c:type:`uv_rusage_t` for more details.
 
+.. c:function:: int uv_getrusage_thread(uv_rusage_t* rusage)
+
+    Gets the resource usage measures for the calling thread.
+
+    .. versionadded:: 1.50.0
+
+    .. note::
+        Not supported on all platforms. May return `UV_ENOTSUP`.
+        On macOS and Windows not all fields are set, the unsupported fields are filled with zeroes.
+        See :c:type:`uv_rusage_t` for more details.
+
 .. c:function:: uv_pid_t uv_os_getpid(void)
 
     Returns the current process ID.
@@ -334,15 +383,41 @@ API
 
     .. versionadded:: 1.16.0
 
+.. c:function:: unsigned int uv_available_parallelism(void)
+
+    Returns an estimate of the default amount of parallelism a program should
+    use. Always returns a non-zero value.
+
+    On Linux, inspects the calling thread's CPU affinity mask to determine if
+    it has been pinned to specific CPUs.
+
+    On Windows, the available parallelism may be underreported on systems with
+    more than 64 logical CPUs.
+
+    On other platforms, reports the number of CPUs that the operating system
+    considers to be online.
+
+    .. versionadded:: 1.44.0
+
 .. c:function:: int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count)
 
     Gets information about the CPUs on the system. The `cpu_infos` array will
     have `count` elements and needs to be freed with :c:func:`uv_free_cpu_info`.
 
+    Use :c:func:`uv_available_parallelism` if you need to know how many CPUs
+    are available for threads or child processes.
+
 .. c:function:: void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count)
 
     Frees the `cpu_infos` array previously allocated with :c:func:`uv_cpu_info`.
 
+.. c:function:: int uv_cpumask_size(void)
+
+    Returns the maximum size of the mask used for process/thread affinities,
+    or `UV_ENOTSUP` if affinities are not supported on the current platform.
+
+    .. versionadded:: 1.45.0
+
 .. c:function:: int uv_interface_addresses(uv_interface_address_t** addresses, int* count)
 
     Gets address information about the network interfaces on the system. An
@@ -514,6 +589,35 @@ API
 
     .. versionadded:: 1.9.0
 
+.. c:function:: int uv_os_get_passwd2(uv_passwd_t* pwd, uv_uid_t uid)
+
+    Gets a subset of the password file entry for the provided uid.
+    The populated data includes the username, euid, gid, shell,
+    and home directory. On non-Windows systems, all data comes from
+    :man:`getpwuid_r(3)`. On Windows, uid and gid are set to -1 and have no
+    meaning, and shell is `NULL`. After successfully calling this function, the
+    memory allocated to `pwd` needs to be freed with
+    :c:func:`uv_os_free_passwd`.
+
+    .. versionadded:: 1.45.0
+
+.. c:function:: int uv_os_get_group(uv_group_t* group, uv_uid_t gid)
+
+    Gets a subset of the group file entry for the provided uid.
+    The populated data includes the group name, gid, and members. On non-Windows
+    systems, all data comes from :man:`getgrgid_r(3)`. On Windows, uid and gid
+    are set to -1 and have no meaning. After successfully calling this function,
+    the memory allocated to `group` needs to be freed with
+    :c:func:`uv_os_free_group`.
+
+    .. versionadded:: 1.45.0
+
+.. c:function:: void uv_os_free_group(uv_passwd_t* pwd)
+
+    Frees the memory previously allocated with :c:func:`uv_os_get_group`.
+
+    .. versionadded:: 1.45.0
+
 .. c:function:: void uv_os_free_passwd(uv_passwd_t* pwd)
 
     Frees the `pwd` memory previously allocated with :c:func:`uv_os_get_passwd`.
@@ -522,18 +626,21 @@ API
 
 .. c:function:: uint64_t uv_get_free_memory(void)
 
-    Gets the amount of free memory available in the system, as reported by the kernel (in bytes).
+    Gets the amount of free memory available in the system, as reported by
+    the kernel (in bytes). Returns 0 when unknown.
 
 .. c:function:: uint64_t uv_get_total_memory(void)
 
     Gets the total amount of physical memory in the system (in bytes).
+    Returns 0 when unknown.
 
 .. c:function:: uint64_t uv_get_constrained_memory(void)
 
-    Gets the amount of memory available to the process (in bytes) based on
+    Gets the total amount of memory available to the process (in bytes) based on
     limits imposed by the OS. If there is no such constraint, or the constraint
-    is unknown, `0` is returned. Note that it is not unusual for this value to
-    be less than or greater than :c:func:`uv_get_total_memory`.
+    is unknown, `0` is returned. If there is a constraining mechanism, but there
+    is no constraint set, `UINT64_MAX` is returned. Note that it is not unusual
+    for this value to be less than or greater than :c:func:`uv_get_total_memory`.
 
     .. note::
         This function currently only returns a non-zero value on Linux, based
@@ -541,9 +648,23 @@ API
 
     .. versionadded:: 1.29.0
 
+.. c:function:: uint64_t uv_get_available_memory(void)
+
+    Gets the amount of free memory that is still available to the process (in bytes).
+    This differs from :c:func:`uv_get_free_memory` in that it takes into account any
+    limits imposed by the OS. If there is no such constraint, or the constraint
+    is unknown, the amount returned will be identical to :c:func:`uv_get_free_memory`.
+
+    .. note::
+        This function currently only returns a value that is different from
+        what :c:func:`uv_get_free_memory` reports on Linux, based
+        on cgroups if it is present.
+
+    .. versionadded:: 1.45.0
+
 .. c:function:: uint64_t uv_hrtime(void)
 
-    Returns the current high-resolution real time. This is expressed in
+    Returns the current high-resolution timestamp. This is expressed in
     nanoseconds. It is relative to an arbitrary time in the past. It is not
     related to the time of day and therefore not subject to clock drift. The
     primary use is for measuring performance between intervals.
@@ -552,6 +673,19 @@ API
         Not every platform can support nanosecond resolution; however, this value will always
         be in nanoseconds.
 
+.. c:function:: int uv_clock_gettime(uv_clock_id clock_id, uv_timespec64_t* ts)
+
+    Obtain the current system time from a high-resolution real-time or monotonic
+    clock source.
+
+    The real-time clock counts from the UNIX epoch (1970-01-01) and is subject
+    to time adjustments; it can jump back in time.
+
+    The monotonic clock counts from an arbitrary point in the past and never
+    jumps back in time.
+
+    .. versionadded:: 1.45.0
+
 .. c:function:: void uv_print_all_handles(uv_loop_t* loop, FILE* stream)
 
     Prints all handles associated with the given `loop` to the given `stream`.
@@ -757,3 +891,50 @@ API
     Causes the calling thread to sleep for `msec` milliseconds.
 
     .. versionadded:: 1.34.0
+
+String manipulation functions
+-----------------------------
+
+These string utilities are needed internally for dealing with Windows, and are
+exported to allow clients to work uniformly with this data when the libuv API
+is not complete.
+
+.. c:function:: size_t uv_utf16_length_as_wtf8(const uint16_t* utf16, ssize_t utf16_len)
+
+    Get the length of a UTF-16 (or UCS-2) `utf16` value after converting it to
+    WTF-8. If `utf16` is NUL terminated, `utf16_len` can be set to -1,
+    otherwise it must be specified.
+
+    .. versionadded:: 1.47.0
+
+.. c:function:: int uv_utf16_to_wtf8(const uint16_t* utf16, ssize_t utf16_len, char** wtf8_ptr, size_t* wtf8_len_ptr)
+
+    Convert UTF-16 (or UCS-2) data in `utf16` to WTF-8 data in `*wtf8_ptr`. The
+    `utf16_len` count (in characters) gives the length of `utf16`. If `utf16`
+    is NUL terminated, `utf16_len` can be set to -1, otherwise it must be
+    specified. If `wtf8_ptr` is `NULL`, no result will be computed, but the
+    length (equal to `uv_utf16_length_as_wtf8`) will be stored in `wtf8_ptr`.
+    If `*wtf8_ptr` is `NULL`, space for the conversion will be allocated and
+    returned in `wtf8_ptr` and the length will be returned in `wtf8_len_ptr`.
+    Otherwise, the length of `*wtf8_ptr` must be passed in `wtf8_len_ptr`. The
+    `wtf8_ptr` must contain an extra space for an extra NUL after the result.
+    If the result is truncated, `UV_ENOBUFS` will be returned and
+    `wtf8_len_ptr` will be the length of the required `wtf8_ptr` to contain the
+    whole result.
+
+    .. versionadded:: 1.47.0
+
+.. c:function:: ssize_t uv_wtf8_length_as_utf16(const char* wtf8)
+
+    Get the length in characters of a NUL-terminated WTF-8 `wtf8` value
+    after converting it to UTF-16 (or UCS-2), including NUL terminator.
+
+    .. versionadded:: 1.47.0
+
+.. c:function:: void uv_wtf8_to_utf16(const char* utf8, uint16_t* utf16, size_t utf16_len)
+
+    Convert NUL-terminated WTF-8 data in `wtf8` to UTF-16 (or UCS-2) data
+    in `utf16`. The `utf16_len` count (in characters) must include space
+    for the NUL terminator.
+
+    .. versionadded:: 1.47.0

docs/src/pipe.rst

@@ -55,17 +55,61 @@ API
 
     Bind the pipe to a file path (Unix) or a name (Windows).
 
+    Does not support Linux abstract namespace sockets,
+    unlike :c:func:`uv_pipe_bind2`.
+
+    Alias for ``uv_pipe_bind2(handle, name, strlen(name), 0)``.
+
     .. note::
-        Paths on Unix get truncated to ``sizeof(sockaddr_un.sun_path)`` bytes, typically between
-        92 and 108 bytes.
+        Paths on Unix get truncated to ``sizeof(sockaddr_un.sun_path)`` bytes,
+        typically between 92 and 108 bytes.
+
+.. c:function:: int uv_pipe_bind2(uv_pipe_t* handle, const char* name, size_t namelen, unsigned int flags)
+
+    Bind the pipe to a file path (Unix) or a name (Windows).
+
+    ``flags`` must be zero or ``UV_PIPE_NO_TRUNCATE``. Returns ``UV_EINVAL``
+    for unsupported flags without performing the bind operation.
+
+    Supports Linux abstract namespace sockets. ``namelen`` must include
+    the leading nul byte but not the trailing nul byte.
+
+    .. versionadded:: 1.46.0
+
+    .. note::
+        Paths on Unix get truncated to ``sizeof(sockaddr_un.sun_path)`` bytes,
+        typically between 92 and 108 bytes, unless the ``UV_PIPE_NO_TRUNCATE``
+        flag is specified, in which case an ``UV_EINVAL`` error is returned.
 
 .. c:function:: void uv_pipe_connect(uv_connect_t* req, uv_pipe_t* handle, const char* name, uv_connect_cb cb)
 
-    Connect to the Unix domain socket or the named pipe.
+    Connect to the Unix domain socket or the Windows named pipe.
+
+    Does not support Linux abstract namespace sockets,
+    unlike :c:func:`uv_pipe_connect2`.
+
+    Alias for ``uv_pipe_connect2(req, handle, name, strlen(name), 0, cb)``.
 
     .. note::
-        Paths on Unix get truncated to ``sizeof(sockaddr_un.sun_path)`` bytes, typically between
-        92 and 108 bytes.
+        Paths on Unix get truncated to ``sizeof(sockaddr_un.sun_path)`` bytes,
+        typically between 92 and 108 bytes.
+
+.. c:function:: void uv_pipe_connect2(uv_connect_t* req, uv_pipe_t* handle, const char* name, size_t namelen, unsigned int flags, uv_connect_cb cb)
+
+    Connect to the Unix domain socket or the Windows named pipe.
+
+    ``flags`` must be zero or ``UV_PIPE_NO_TRUNCATE``. Returns ``UV_EINVAL``
+    for unsupported flags without performing the connect operation.
+
+    Supports Linux abstract namespace sockets. ``namelen`` must include
+    the leading nul byte but not the trailing nul byte.
+
+    .. versionadded:: 1.46.0
+
+    .. note::
+        Paths on Unix get truncated to ``sizeof(sockaddr_un.sun_path)`` bytes,
+        typically between 92 and 108 bytes, unless the ``UV_PIPE_NO_TRUNCATE``
+        flag is specified, in which case an ``UV_EINVAL`` error is returned.
 
 .. c:function:: int uv_pipe_getsockname(const uv_pipe_t* handle, char* buffer, size_t* size)
 

docs/src/poll.rst

@@ -45,7 +45,7 @@ Data types
 
     Type definition for callback passed to :c:func:`uv_poll_start`.
 
-.. c:type:: uv_poll_event
+.. c:enum:: uv_poll_event
 
     Poll event types
 
@@ -101,7 +101,9 @@ API
     with one of the `UV_E*` error codes (see :ref:`errors`). The user should
     not close the socket while the handle is active. If the user does that
     anyway, the callback *may* be called reporting an error status, but this is
-    **not** guaranteed.
+    **not** guaranteed. If `status == UV_EBADF` polling is discontinued for the
+    file handle and no further events will be reported. The user should
+    then call :c:func:`uv_close` on the handle.
 
     .. note::
         Calling :c:func:`uv_poll_start` on a handle that is already active is

docs/src/process.rst

@@ -40,7 +40,7 @@ Data types
     will indicate the exit status and the signal that caused the process to
     terminate, if any.
 
-.. c:type:: uv_process_flags
+.. c:enum:: uv_process_flags
 
     Flags to be set on the flags field of :c:type:`uv_process_options_t`.
 
@@ -85,7 +85,14 @@ Data types
             * option is only meaningful on Windows systems. On Unix it is silently
             * ignored.
             */
-            UV_PROCESS_WINDOWS_HIDE_GUI = (1 << 6)
+            UV_PROCESS_WINDOWS_HIDE_GUI = (1 << 6),
+            /*
+             * On Windows, if the path to the program to execute, specified in
+             * uv_process_options_t's file field, has a directory component,
+             * search for the exact file name before trying variants with
+             * extensions like '.exe' or '.cmd'.
+             */
+            UV_PROCESS_WINDOWS_FILE_PATH_EXACT_NAME = (1 << 7)
         };
 
 .. c:type:: uv_stdio_container_t
@@ -109,10 +116,39 @@ Data types
     ::
 
         typedef enum {
+            /*
+            * The following four options are mutually-exclusive, and define
+            * the operation to perform for the corresponding file descriptor
+            * in the child process:
+            */
+
+            /*
+            * No file descriptor will be provided (or redirected to
+            * `/dev/null` if it is fd 0, 1 or 2).
+            */
             UV_IGNORE = 0x00,
+
+            /*
+            * Open a new pipe into `data.stream`, per the flags below. The
+            * `data.stream` field must point to a uv_pipe_t object that has
+            * been initialized with `uv_pipe_init(loop, data.stream, ipc);`,
+            * but not yet opened or connected.
+            /*
             UV_CREATE_PIPE = 0x01,
+
+            /*
+            * The child process will be given a duplicate of the parent's
+            * file descriptor given by `data.fd`.
+            */
             UV_INHERIT_FD = 0x02,
+
+            /*
+            * The child process will be given a duplicate of the parent's
+            * file descriptor being used by the stream handle given by
+            * `data.stream`.
+            */
             UV_INHERIT_STREAM = 0x04,
+
             /*
             * When UV_CREATE_PIPE is specified, UV_READABLE_PIPE and UV_WRITABLE_PIPE
             * determine the direction of flow, from the child process' perspective. Both
@@ -120,6 +156,7 @@ Data types
             */
             UV_READABLE_PIPE = 0x10,
             UV_WRITABLE_PIPE = 0x20,
+
             /*
             * When UV_CREATE_PIPE is specified, specifying UV_NONBLOCK_PIPE opens the
             * handle in non-blocking mode in the child. This may cause loss of data,
@@ -153,7 +190,7 @@ Public members
     Command line arguments. args[0] should be the path to the program. On
     Windows this uses `CreateProcess` which concatenates the arguments into a
     string this can cause some strange errors. See the
-    ``UV_PROCESS_WINDOWS_VERBATIM_ARGUMENTS`` flag on :c:type:`uv_process_flags`.
+    ``UV_PROCESS_WINDOWS_VERBATIM_ARGUMENTS`` flag on :c:enum:`uv_process_flags`.
 
 .. c:member:: char** uv_process_options_t.env
 
@@ -166,7 +203,7 @@ Public members
 .. c:member:: unsigned int uv_process_options_t.flags
 
     Various flags that control how :c:func:`uv_spawn` behaves. See
-    :c:type:`uv_process_flags`.
+    :c:enum:`uv_process_flags`.
 
 .. c:member:: int uv_process_options_t.stdio_count
 .. c:member:: uv_stdio_container_t* uv_process_options_t.stdio
@@ -232,6 +269,9 @@ API
     .. versionchanged:: 1.24.0 Added `UV_PROCESS_WINDOWS_HIDE_CONSOLE` and
                         `UV_PROCESS_WINDOWS_HIDE_GUI` flags.
 
+    .. versionchanged:: 1.48.0 Added the
+                        `UV_PROCESS_WINDOWS_FILE_PATH_EXACT_NAME` flag.
+
 .. c:function:: int uv_process_kill(uv_process_t* handle, int signum)
 
     Sends the specified signal to the given process handle. Check the documentation

docs/src/request.rst

@@ -21,17 +21,9 @@ Data types
 
     Union of all request types.
 
+.. c:enum:: uv_req_type
 
-Public members
-^^^^^^^^^^^^^^
-
-.. c:member:: void* uv_req_t.data
-
-    Space for user-defined arbitrary data. libuv does not use this field.
-
-.. c:member:: uv_req_type uv_req_t.type
-
-    Indicated the type of request. Readonly.
+    The kind of the libuv request.
 
     ::
 
@@ -50,6 +42,18 @@ Public members
         } uv_req_type;
 
 
+Public members
+^^^^^^^^^^^^^^
+
+.. c:member:: void* uv_req_t.data
+
+    Space for user-defined arbitrary data. libuv does not use this field.
+
+.. c:member:: uv_req_type uv_req_t.type
+
+    The :c:enum:`uv_req_type`, indicating the type of the request. Readonly.
+
+
 API
 ---
 
@@ -95,7 +99,7 @@ API
 
     .. versionadded:: 1.19.0
 
-.. c:function:: void* uv_req_set_data(uv_req_t* req, void* data)
+.. c:function:: void uv_req_set_data(uv_req_t* req, void* data)
 
     Sets `req->data` to `data`.
 

docs/src/tcp.rst

@@ -16,6 +16,28 @@ Data types
 
     TCP handle type.
 
+.. c:enum:: uv_tcp_flags
+
+    Flags used in :c:func:`uv_tcp_bind`.
+
+    ::
+
+        enum uv_tcp_flags {
+            /* Used with uv_tcp_bind, when an IPv6 address is used. */
+            UV_TCP_IPV6ONLY = 1,
+
+            /* Enable SO_REUSEPORT socket option when binding the handle.
+             * This allows completely duplicate bindings by multiple processes
+             * or threads if they all set SO_REUSEPORT before binding the port.
+             * Incoming connections are distributed across the participating
+             * listener sockets.
+             *
+             * This flag is available only on Linux 3.9+, DragonFlyBSD 3.6+,
+             * FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ for now.
+             */
+            UV_TCP_REUSEPORT = 2,
+        };
+
 
 Public members
 ^^^^^^^^^^^^^^
@@ -65,6 +87,10 @@ API
     at the end of this procedure, then the handle is destroyed with a
     ``UV_ETIMEDOUT`` error passed to the corresponding callback.
 
+    If `delay` is less than 1 then ``UV_EINVAL`` is returned.
+
+    .. versionchanged:: 1.49.0 If `delay` is less than 1 then ``UV_EINVAL``` is returned.
+
 .. c:function:: int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable)
 
     Enable / disable simultaneous asynchronous accept requests that are
@@ -77,16 +103,34 @@ API
 
 .. c:function:: int uv_tcp_bind(uv_tcp_t* handle, const struct sockaddr* addr, unsigned int flags)
 
-    Bind the handle to an address and port. `addr` should point to an
-    initialized ``struct sockaddr_in`` or ``struct sockaddr_in6``.
+    Bind the handle to an address and port.
 
     When the port is already taken, you can expect to see an ``UV_EADDRINUSE``
-    error from :c:func:`uv_listen` or :c:func:`uv_tcp_connect`. That is,
-    a successful call to this function does not guarantee that the call
-    to :c:func:`uv_listen` or :c:func:`uv_tcp_connect` will succeed as well.
+    error from :c:func:`uv_listen` or :c:func:`uv_tcp_connect` unless you specify
+    ``UV_TCP_REUSEPORT`` in `flags` for all the binding sockets. That is, a successful
+    call to this function does not guarantee that the call to :c:func:`uv_listen` or
+    :c:func:`uv_tcp_connect` will succeed as well.
 
-    `flags` can contain ``UV_TCP_IPV6ONLY``, in which case dual-stack support
-    is disabled and only IPv6 is used.
+    :param handle: TCP handle. It should have been initialized with :c:func:`uv_tcp_init`.
+
+    :param addr: Address to bind to. It should point to an initialized ``struct sockaddr_in``
+        or ``struct sockaddr_in6``.
+
+    :param flags: Flags that control the behavior of binding the socket.
+        ``UV_TCP_IPV6ONLY`` can be contained in `flags` to disable dual-stack
+        support and only use IPv6. 
+        ``UV_TCP_REUSEPORT`` can be contained in `flags` to enable the socket option
+        `SO_REUSEPORT` with the capability of load balancing that distribute incoming
+        connections across all listening sockets in multiple processes or threads. 
+
+    :returns: 0 on success, or an error code < 0 on failure.
+
+    .. versionchanged:: 1.49.0 added the ``UV_TCP_REUSEPORT`` flag.
+
+    .. note::
+        ``UV_TCP_REUSEPORT`` flag is available only on Linux 3.9+, DragonFlyBSD 3.6+,
+        FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ at the moment. On other platforms
+        this function will return an UV_ENOTSUP error.
 
 .. c:function:: int uv_tcp_getsockname(const uv_tcp_t* handle, struct sockaddr* name, int* namelen)
 

docs/src/threading.rst

@@ -78,6 +78,14 @@ Threads
 
     .. versionchanged:: 1.4.1 returns a UV_E* error code on failure
 
+.. c:function:: int uv_thread_detach(uv_thread_t* tid)
+
+    Detaches a thread. Detached threads automatically release their
+    resources upon termination, eliminating the need for the application to
+    call `uv_thread_join`.
+
+    .. versionadded:: 1.50.0
+
 .. c:function:: int uv_thread_create_ex(uv_thread_t* tid, const uv_thread_options_t* params, uv_thread_cb entry, void* arg)
 
     Like :c:func:`uv_thread_create`, but additionally specifies options for creating a new thread.
@@ -88,10 +96,89 @@ Threads
 
     .. versionadded:: 1.26.0
 
+.. c:function:: int uv_thread_setaffinity(uv_thread_t* tid, char* cpumask, char* oldmask, size_t mask_size)
+
+    Sets the specified thread's affinity to cpumask, which is specified in
+    bytes. Optionally returning the previous affinity setting in oldmask.
+    On Unix, uses :man:`pthread_getaffinity_np(3)` to get the affinity setting
+    and maps the cpu_set_t to bytes in oldmask. Then maps the bytes in cpumask
+    to a cpu_set_t and uses :man:`pthread_setaffinity_np(3)`. On Windows, maps
+    the bytes in cpumask to a bitmask and uses SetThreadAffinityMask() which
+    returns the previous affinity setting.
+
+    The mask_size specifies the number of entries (bytes) in cpumask / oldmask,
+    and must be greater-than-or-equal-to :c:func:`uv_cpumask_size`.
+
+    .. note::
+        Thread affinity setting is not atomic on Windows. Unsupported on macOS.
+
+    .. versionadded:: 1.45.0
+
+.. c:function:: int uv_thread_getaffinity(uv_thread_t* tid, char* cpumask, size_t mask_size)
+
+    Gets the specified thread's affinity setting. On Unix, this maps the
+    cpu_set_t returned by :man:`pthread_getaffinity_np(3)` to bytes in cpumask.
+
+    The mask_size specifies the number of entries (bytes) in cpumask,
+    and must be greater-than-or-equal-to :c:func:`uv_cpumask_size`.
+
+    .. note::
+        Thread affinity getting is not atomic on Windows. Unsupported on macOS.
+
+    .. versionadded:: 1.45.0
+
+.. c:function:: int uv_thread_getcpu(void)
+
+    Gets the CPU number on which the calling thread is running.
+
+    .. note::
+        Currently only implemented on Windows, Linux and FreeBSD.
+
+    .. versionadded:: 1.45.0
+
 .. c:function:: uv_thread_t uv_thread_self(void)
 .. c:function:: int uv_thread_join(uv_thread_t *tid)
 .. c:function:: int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2)
 
+.. c:function:: int uv_thread_setname(const char* name)
+
+    Sets the name of the current thread. Different platforms define different limits on the max number of characters
+    a thread name can be: Linux, IBM i (16), macOS (64), Windows (32767), and NetBSD (32), etc. `uv_thread_setname()`
+    will truncate it in case `name` is larger than the limit of the platform.
+
+    Not supported on Windows Server 2016, returns `UV_ENOSYS`.
+
+    .. versionadded:: 1.50.0
+
+.. c:function:: int uv_thread_getname(uv_thread_t* tid, char* name, size_t* size)
+
+    Gets the name of the thread specified by `tid`. The thread name is copied, with the trailing NUL, into the buffer
+    pointed to by `name`. The `size` parameter specifies the size of the buffer pointed to by `name`.
+    The buffer should be large enough to hold the name of the thread plus the trailing NUL, or it will be truncated to fit
+    with the trailing NUL.
+
+    Not supported on Windows Server 2016, returns `UV_ENOSYS`.
+
+    .. versionadded:: 1.50.0
+
+.. c:function:: int uv_thread_setpriority(uv_thread_t tid, int priority)
+
+    If the function succeeds, the return value is 0.
+    If the function fails, the return value is less than zero.
+    Sets the scheduling priority of the thread specified by tid. It requires elevated
+    privilege to set specific priorities on some platforms.
+    The priority can be set to the following constants. UV_THREAD_PRIORITY_HIGHEST, 
+    UV_THREAD_PRIORITY_ABOVE_NORMAL, UV_THREAD_PRIORITY_NORMAL, 
+    UV_THREAD_PRIORITY_BELOW_NORMAL, UV_THREAD_PRIORITY_LOWEST.
+
+.. c:function:: int uv_thread_getpriority(uv_thread_t tid, int* priority)
+
+    If the function succeeds, the return value is 0.
+    If the function fails, the return value is less than zero.
+    Retrieves the scheduling priority of the thread specified by tid. The value in the
+    output parameter priority is platform dependent.
+    For Linux, when schedule policy is SCHED_OTHER (default), priority is 0.
+
 Thread-local storage
 ^^^^^^^^^^^^^^^^^^^^
 

docs/src/threadpool.rst

@@ -14,6 +14,11 @@ is 1024).
 
 .. versionchanged:: 1.30.0 the maximum UV_THREADPOOL_SIZE allowed was increased from 128 to 1024.
 
+.. versionchanged:: 1.45.0 threads now have an 8 MB stack instead of the
+   (sometimes too low) platform default.
+
+.. versionchanged:: 1.50.0 threads now have a default name of libuv-worker.
+
 The threadpool is global and shared across all event loops. When a particular
 function makes use of the threadpool (i.e. when using :c:func:`uv_queue_work`)
 libuv preallocates and initializes the maximum number of threads allowed by

docs/src/timer.rst

@@ -6,6 +6,15 @@
 
 Timer handles are used to schedule callbacks to be called in the future.
 
+Timers are either single-shot or repeating. Repeating timers do not adjust
+for overhead but are rearmed relative to the event loop's idea of "now".
+
+Libuv updates its idea of "now" right before executing timer callbacks, and
+right after waking up from waiting for I/O. See also :c:func:`uv_update_time`.
+
+Example: a repeating timer with a 50 ms interval whose callback takes 17 ms
+to complete, runs again 33 ms later. If other tasks take longer than 33 ms,
+the timer callback runs as soon as possible.
 
 Data types
 ----------
@@ -64,11 +73,6 @@ API
     duration, and will follow normal timer semantics in the case of a
     time-slice overrun.
 
-    For example, if a 50ms repeating timer first runs for 17ms, it will be
-    scheduled to run again 33ms later. If other tasks consume more than the
-    33ms following the first timer callback, then the callback will run as soon
-    as possible.
-
     .. note::
         If the repeat value is set from a timer callback it does not immediately take effect.
         If the timer was non-repeating before, it will have been stopped. If it was repeating,

docs/src/tty.rst

@@ -27,10 +27,15 @@ Data types
       typedef enum {
           /* Initial/normal terminal mode */
           UV_TTY_MODE_NORMAL,
-          /* Raw input mode (On Windows, ENABLE_WINDOW_INPUT is also enabled) */
+          /*
+          * Raw input mode (On Windows, ENABLE_WINDOW_INPUT is also enabled).
+          * May become equivalent to UV_TTY_MODE_RAW_VT in future libuv versions.
+          */
           UV_TTY_MODE_RAW,
           /* Binary-safe I/O mode for IPC (Unix-only) */
-          UV_TTY_MODE_IO
+          UV_TTY_MODE_IO,
+          /* Raw input mode. On Windows ENABLE_VIRTUAL_TERMINAL_INPUT is also set. */
+          UV_TTY_MODE_RAW_VT
       } uv_tty_mode_t;
 
 .. c:enum:: uv_tty_vtermstate_t
@@ -98,7 +103,7 @@ API
 .. c:function:: int uv_tty_set_mode(uv_tty_t* handle, uv_tty_mode_t mode)
 
     .. versionchanged:: 1.2.0: the mode is specified as a
-                        :c:type:`uv_tty_mode_t` value.
+                        :c:enum:`uv_tty_mode_t` value.
 
     Set the TTY using the specified terminal mode.
 

docs/src/udp.rst

@@ -18,7 +18,7 @@ Data types
 
     UDP send request type.
 
-.. c:type:: uv_udp_flags
+.. c:enum:: uv_udp_flags
 
     Flags used in :c:func:`uv_udp_bind` and :c:type:`uv_udp_recv_cb`..
 
@@ -33,12 +33,14 @@ Data types
              */
             UV_UDP_PARTIAL = 2,
             /*
-            * Indicates if SO_REUSEADDR will be set when binding the handle in
-            * uv_udp_bind.
-            * This sets the SO_REUSEPORT socket flag on the BSDs and OS X. On other
-            * Unix platforms, it sets the SO_REUSEADDR flag. What that means is that
-            * multiple threads or processes can bind to the same address without error
-            * (provided they all set the flag) but only the last one to bind will receive
+             * Indicates if SO_REUSEADDR will be set when binding the handle.
+             * This sets the SO_REUSEPORT socket flag on the BSDs (except for
+             * DragonFlyBSD), OS X, and other platforms where SO_REUSEPORTs don't
+             * have the capability of load balancing, as the opposite of what
+             * UV_UDP_REUSEPORT would do. On other Unix platforms, it sets the
+             * SO_REUSEADDR flag. What that means is that multiple threads or
+             * processes can bind to the same address without error (provided
+             * they all set the flag) but only the last one to bind will receive
              * any traffic, in effect "stealing" the port from the previous listener.
              */
             UV_UDP_REUSEADDR = 4,
@@ -56,11 +58,23 @@ Data types
             /*
              * Indicates if IP_RECVERR/IPV6_RECVERR will be set when binding the handle.
              * This sets IP_RECVERR for IPv4 and IPV6_RECVERR for IPv6 UDP sockets on
-             * Linux. This stops the Linux kernel from supressing some ICMP error messages
+             * Linux. This stops the Linux kernel from suppressing some ICMP error messages
              * and enables full ICMP error reporting for faster failover.
              * This flag is no-op on platforms other than Linux.
              */
             UV_UDP_LINUX_RECVERR = 32,
+            /*
+             * Indicates if SO_REUSEPORT will be set when binding the handle.
+             * This sets the SO_REUSEPORT socket option on supported platforms.
+             * Unlike UV_UDP_REUSEADDR, this flag will make multiple threads or
+             * processes that are binding to the same address and port "share"
+             * the port, which means incoming datagrams are distributed across
+             * the receiving sockets among threads or processes.
+             *
+             * This flag is available only on Linux 3.9+, DragonFlyBSD 3.6+,
+             * FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ for now.
+             */
+            UV_UDP_REUSEPORT = 64,
             /*
              * Indicates that recvmmsg should be used, if available.
              */
@@ -186,11 +200,24 @@ API
         with the address and port to bind to.
 
     :param flags: Indicate how the socket will be bound,
-        ``UV_UDP_IPV6ONLY``, ``UV_UDP_REUSEADDR``, and ``UV_UDP_RECVERR``
-        are supported.
+        ``UV_UDP_IPV6ONLY``, ``UV_UDP_REUSEADDR``, ``UV_UDP_REUSEPORT``,
+        and ``UV_UDP_RECVERR`` are supported.
 
     :returns: 0 on success, or an error code < 0 on failure.
 
+    .. versionchanged:: 1.49.0 added the ``UV_UDP_REUSEPORT`` flag.
+
+    .. note::
+        ``UV_UDP_REUSEPORT`` flag is available only on Linux 3.9+, DragonFlyBSD 3.6+,
+        FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ at the moment. On other platforms
+        this function will return an UV_ENOTSUP error.
+        For platforms where `SO_REUSEPORT`s have the capability of load balancing,
+        specifying both ``UV_UDP_REUSEADDR`` and ``UV_UDP_REUSEPORT`` in flags is allowed
+        and `SO_REUSEPORT` will always override the behavior of `SO_REUSEADDR`.
+        For platforms where `SO_REUSEPORT`s don't have the capability of load balancing,
+        specifying both ``UV_UDP_REUSEADDR`` and ``UV_UDP_REUSEPORT`` in flags will fail,
+        returning an UV_ENOTSUP error.
+
 .. c:function:: int uv_udp_connect(uv_udp_t* handle, const struct sockaddr* addr)
 
     Associate the UDP handle to a remote address and port, so every
@@ -285,7 +312,9 @@ API
     local sockets.
 
     :param handle: UDP handle. Should have been initialized with
-        :c:func:`uv_udp_init`.
+        :c:func:`uv_udp_init_ex` as either ``AF_INET`` or ``AF_INET6``, or have
+        been bound to an address explicitly with :c:func:`uv_udp_bind`, or
+        implicitly with :c:func:`uv_udp_send()` or :c:func:`uv_udp_recv_start`.
 
     :param on: 1 for on, 0 for off.
 
@@ -296,7 +325,9 @@ API
     Set the multicast ttl.
 
     :param handle: UDP handle. Should have been initialized with
-        :c:func:`uv_udp_init`.
+        :c:func:`uv_udp_init_ex` as either ``AF_INET`` or ``AF_INET6``, or have
+        been bound to an address explicitly with :c:func:`uv_udp_bind`, or
+        implicitly with :c:func:`uv_udp_send()` or :c:func:`uv_udp_recv_start`.
 
     :param ttl: 1 through 255.
 
@@ -307,7 +338,9 @@ API
     Set the multicast interface to send or receive data on.
 
     :param handle: UDP handle. Should have been initialized with
-        :c:func:`uv_udp_init`.
+        :c:func:`uv_udp_init_ex` as either ``AF_INET`` or ``AF_INET6``, or have
+        been bound to an address explicitly with :c:func:`uv_udp_bind`, or
+        implicitly with :c:func:`uv_udp_send()` or :c:func:`uv_udp_recv_start`.
 
     :param interface_addr: interface address.
 
@@ -318,7 +351,9 @@ API
     Set broadcast on or off.
 
     :param handle: UDP handle. Should have been initialized with
-        :c:func:`uv_udp_init`.
+        :c:func:`uv_udp_init_ex` as either ``AF_INET`` or ``AF_INET6``, or have
+        been bound to an address explicitly with :c:func:`uv_udp_bind`, or
+        implicitly with :c:func:`uv_udp_send()` or :c:func:`uv_udp_recv_start`.
 
     :param on: 1 for on, 0 for off.
 
@@ -329,7 +364,9 @@ API
     Set the time to live.
 
     :param handle: UDP handle. Should have been initialized with
-        :c:func:`uv_udp_init`.
+        :c:func:`uv_udp_init_ex` as either ``AF_INET`` or ``AF_INET6``, or have
+        been bound to an address explicitly with :c:func:`uv_udp_bind`, or
+        implicitly with :c:func:`uv_udp_send()` or :c:func:`uv_udp_recv_start`.
 
     :param ttl: 1 through 255.
 
@@ -389,6 +426,20 @@ API
 
     .. versionchanged:: 1.27.0 added support for connected sockets
 
+.. c:function:: int uv_udp_try_send2(uv_udp_t* handle, unsigned int count, uv_buf_t* bufs[/*count*/], unsigned int nbufs[/*count*/], struct sockaddr* addrs[/*count*/], unsigned int flags)
+
+    Like :c:func:`uv_udp_try_send`, but can send multiple datagrams.
+    Lightweight abstraction around :man:`sendmmsg(2)`, with a :man:`sendmsg(2)`
+    fallback loop for platforms that do not support the former. The handle must
+    be fully initialized; call c:func:`uv_udp_bind` first.
+
+    :returns: >= 0: number of datagrams sent. Zero only if `count` was zero.
+        < 0: negative error code. Only if sending the first datagram fails,
+        otherwise returns a positive send count. ``UV_EAGAIN`` when datagrams
+        cannot be sent right now; fall back to :c:func:`uv_udp_send`.
+
+    .. versionadded:: 1.50.0
+
 .. c:function:: int uv_udp_recv_start(uv_udp_t* handle, uv_alloc_cb alloc_cb, uv_udp_recv_cb recv_cb)
 
     Prepare for receiving data. If the socket has not previously been bound

include/uv.h

@@ -31,6 +31,7 @@ extern "C" {
 #error "Define either BUILDING_UV_SHARED or USING_UV_SHARED, not both."
 #endif
 
+#ifndef UV_EXTERN
 #ifdef _WIN32
   /* Windows - set up dll import/export decorators. */
 # if defined(BUILDING_UV_SHARED)
@@ -50,17 +51,20 @@ extern "C" {
 #else
 # define UV_EXTERN /* nothing */
 #endif
+#endif /* UV_EXTERN */
 
 #include "uv/errno.h"
 #include "uv/version.h"
 #include <stddef.h>
 #include <stdio.h>
-
-#if defined(_MSC_VER) && _MSC_VER < 1600
-# include "uv/stdint-msvc2008.h"
-#else
 #include <stdint.h>
-#endif
+#include <math.h>
+
+/* Internal type, do not use. */
+struct uv__queue {
+  struct uv__queue* next;
+  struct uv__queue* prev;
+};
 
 #if defined(_WIN32)
 # include "uv/win.h"
@@ -152,6 +156,9 @@ extern "C" {
   XX(EFTYPE, "inappropriate file type or format")                             \
   XX(EILSEQ, "illegal byte sequence")                                         \
   XX(ESOCKTNOSUPPORT, "socket type not supported")                            \
+  XX(ENODATA, "no data available")                                            \
+  XX(EUNATCH, "protocol driver not attached")                                 \
+  XX(ENOEXEC, "exec format error")                                            \
 
 #define UV_HANDLE_TYPE_MAP(XX)                                                \
   XX(ASYNC, async)                                                            \
@@ -247,12 +254,17 @@ typedef struct uv_cpu_info_s uv_cpu_info_t;
 typedef struct uv_interface_address_s uv_interface_address_t;
 typedef struct uv_dirent_s uv_dirent_t;
 typedef struct uv_passwd_s uv_passwd_t;
+typedef struct uv_group_s uv_group_t;
 typedef struct uv_utsname_s uv_utsname_t;
 typedef struct uv_statfs_s uv_statfs_t;
 
+typedef struct uv_metrics_s uv_metrics_t;
+
 typedef enum {
   UV_LOOP_BLOCK_SIGNAL = 0,
-  UV_METRICS_IDLE_TIME
+  UV_METRICS_IDLE_TIME,
+  UV_LOOP_USE_IO_URING_SQPOLL
+#define UV_LOOP_USE_IO_URING_SQPOLL UV_LOOP_USE_IO_URING_SQPOLL
 } uv_loop_option;
 
 typedef enum {
@@ -282,13 +294,13 @@ UV_EXTERN int uv_loop_init(uv_loop_t* loop);
 UV_EXTERN int uv_loop_close(uv_loop_t* loop);
 /*
  * NOTE:
- *  This function is DEPRECATED (to be removed after 0.12), users should
+ *  This function is DEPRECATED, users should
  *  allocate the loop manually and use uv_loop_init instead.
  */
 UV_EXTERN uv_loop_t* uv_loop_new(void);
 /*
  * NOTE:
- *  This function is DEPRECATED (to be removed after 0.12). Users should use
+ *  This function is DEPRECATED. Users should use
  *  uv_loop_close and free the memory manually instead.
  */
 UV_EXTERN void uv_loop_delete(uv_loop_t*);
@@ -344,11 +356,32 @@ typedef void (*uv_random_cb)(uv_random_t* req,
                              void* buf,
                              size_t buflen);
 
+typedef enum {
+  UV_CLOCK_MONOTONIC,
+  UV_CLOCK_REALTIME
+} uv_clock_id;
+
+/* XXX(bnoordhuis) not 2038-proof, https://github.com/libuv/libuv/issues/3864 */
 typedef struct {
   long tv_sec;
   long tv_nsec;
 } uv_timespec_t;
 
+typedef struct {
+  int64_t tv_sec;
+  int32_t tv_nsec;
+} uv_timespec64_t;
+
+/* XXX(bnoordhuis) not 2038-proof, https://github.com/libuv/libuv/issues/3864 */
+typedef struct {
+  long tv_sec;
+  long tv_usec;
+} uv_timeval_t;
+
+typedef struct {
+  int64_t tv_sec;
+  int32_t tv_usec;
+} uv_timeval64_t;
 
 typedef struct {
   uint64_t st_dev;
@@ -437,7 +470,7 @@ struct uv_shutdown_s {
   uv_handle_type type;                                                        \
   /* private */                                                               \
   uv_close_cb close_cb;                                                       \
-  void* handle_queue[2];                                                      \
+  struct uv__queue handle_queue;                                              \
   union {                                                                     \
     int fd;                                                                   \
     void* reserved[4];                                                        \
@@ -575,7 +608,18 @@ UV_EXTERN int uv_tcp_simultaneous_accepts(uv_tcp_t* handle, int enable);
 
 enum uv_tcp_flags {
   /* Used with uv_tcp_bind, when an IPv6 address is used. */
-  UV_TCP_IPV6ONLY = 1
+  UV_TCP_IPV6ONLY = 1,
+
+  /* Enable SO_REUSEPORT socket option when binding the handle.
+   * This allows completely duplicate bindings by multiple processes
+   * or threads if they all set SO_REUSEPORT before binding the port.
+   * Incoming connections are distributed across the participating
+   * listener sockets.
+   *
+   * This flag is available only on Linux 3.9+, DragonFlyBSD 3.6+,
+   * FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ for now.
+   */
+  UV_TCP_REUSEPORT = 2,
 };
 
 UV_EXTERN int uv_tcp_bind(uv_tcp_t* handle,
@@ -616,10 +660,13 @@ enum uv_udp_flags {
   UV_UDP_PARTIAL = 2,
   /*
    * Indicates if SO_REUSEADDR will be set when binding the handle.
-   * This sets the SO_REUSEPORT socket flag on the BSDs and OS X. On other
-   * Unix platforms, it sets the SO_REUSEADDR flag.  What that means is that
-   * multiple threads or processes can bind to the same address without error
-   * (provided they all set the flag) but only the last one to bind will receive
+   * This sets the SO_REUSEPORT socket flag on the BSDs (except for
+   * DragonFlyBSD), OS X, and other platforms where SO_REUSEPORTs don't
+   * have the capability of load balancing, as the opposite of what
+   * UV_UDP_REUSEPORT would do. On other Unix platforms, it sets the
+   * SO_REUSEADDR flag. What that means is that multiple threads or
+   * processes can bind to the same address without error (provided
+   * they all set the flag) but only the last one to bind will receive
    * any traffic, in effect "stealing" the port from the previous listener.
    */
   UV_UDP_REUSEADDR = 4,
@@ -642,6 +689,18 @@ enum uv_udp_flags {
    * This flag is no-op on platforms other than Linux.
    */
   UV_UDP_LINUX_RECVERR = 32,
+  /*
+   * Indicates if SO_REUSEPORT will be set when binding the handle.
+   * This sets the SO_REUSEPORT socket option on supported platforms.
+   * Unlike UV_UDP_REUSEADDR, this flag will make multiple threads or
+   * processes that are binding to the same address and port "share"
+   * the port, which means incoming datagrams are distributed across
+   * the receiving sockets among threads or processes.
+   *
+   * This flag is available only on Linux 3.9+, DragonFlyBSD 3.6+,
+   * FreeBSD 12.0+, Solaris 11.4, and AIX 7.2.5+ for now.
+   */
+  UV_UDP_REUSEPORT = 64,
   /*
    * Indicates that recvmmsg should be used, if available.
    */
@@ -718,6 +777,12 @@ UV_EXTERN int uv_udp_try_send(uv_udp_t* handle,
                               const uv_buf_t bufs[],
                               unsigned int nbufs,
                               const struct sockaddr* addr);
+UV_EXTERN int uv_udp_try_send2(uv_udp_t* handle,
+                               unsigned int count,
+                               uv_buf_t* bufs[/*count*/],
+                               unsigned int nbufs[/*count*/],
+                               struct sockaddr* addrs[/*count*/],
+                               unsigned int flags);
 UV_EXTERN int uv_udp_recv_start(uv_udp_t* handle,
                                 uv_alloc_cb alloc_cb,
                                 uv_udp_recv_cb recv_cb);
@@ -741,10 +806,15 @@ struct uv_tty_s {
 typedef enum {
   /* Initial/normal terminal mode */
   UV_TTY_MODE_NORMAL,
-  /* Raw input mode (On Windows, ENABLE_WINDOW_INPUT is also enabled) */
+  /*
+   * Raw input mode (On Windows, ENABLE_WINDOW_INPUT is also enabled).
+   * May become equivalent to UV_TTY_MODE_RAW_VT in future libuv versions.
+   */
   UV_TTY_MODE_RAW,
   /* Binary-safe I/O mode for IPC (Unix-only) */
-  UV_TTY_MODE_IO
+  UV_TTY_MODE_IO,
+  /* Raw input mode. On Windows ENABLE_VIRTUAL_TERMINAL_INPUT is also set. */
+  UV_TTY_MODE_RAW_VT
 } uv_tty_mode_t;
 
 typedef enum {
@@ -779,6 +849,10 @@ inline int uv_tty_set_mode(uv_tty_t* handle, int mode) {
 
 UV_EXTERN uv_handle_type uv_guess_handle(uv_file file);
 
+enum {
+  UV_PIPE_NO_TRUNCATE = 1u << 0
+};
+
 /*
  * uv_pipe_t is a subclass of uv_stream_t.
  *
@@ -795,10 +869,20 @@ struct uv_pipe_s {
 UV_EXTERN int uv_pipe_init(uv_loop_t*, uv_pipe_t* handle, int ipc);
 UV_EXTERN int uv_pipe_open(uv_pipe_t*, uv_file file);
 UV_EXTERN int uv_pipe_bind(uv_pipe_t* handle, const char* name);
+UV_EXTERN int uv_pipe_bind2(uv_pipe_t* handle,
+                            const char* name,
+                            size_t namelen,
+                            unsigned int flags);
 UV_EXTERN void uv_pipe_connect(uv_connect_t* req,
                                uv_pipe_t* handle,
                                const char* name,
                                uv_connect_cb cb);
+UV_EXTERN int uv_pipe_connect2(uv_connect_t* req,
+                               uv_pipe_t* handle,
+                               const char* name,
+                               size_t namelen,
+                               unsigned int flags,
+                               uv_connect_cb cb);
 UV_EXTERN int uv_pipe_getsockname(const uv_pipe_t* handle,
                                   char* buffer,
                                   size_t* size);
@@ -1063,7 +1147,14 @@ enum uv_process_flags {
    * option is only meaningful on Windows systems. On Unix it is silently
    * ignored.
    */
-  UV_PROCESS_WINDOWS_HIDE_GUI = (1 << 6)
+  UV_PROCESS_WINDOWS_HIDE_GUI = (1 << 6),
+  /*
+   * On Windows, if the path to the program to execute, specified in
+   * uv_process_options_t's file field, has a directory component,
+   * search for the exact file name before trying variants with
+   * extensions like '.exe' or '.cmd'.
+   */
+  UV_PROCESS_WINDOWS_FILE_PATH_EXACT_NAME = (1 << 7)
 };
 
 /*
@@ -1133,12 +1224,18 @@ struct uv_interface_address_s {
 
 struct uv_passwd_s {
   char* username;
-  long uid;
-  long gid;
+  unsigned long uid;
+  unsigned long gid;
   char* shell;
   char* homedir;
 };
 
+struct uv_group_s {
+  char* groupname;
+  unsigned long gid;
+  char** members;
+};
+
 struct uv_utsname_s {
   char sysname[256];
   char release[256];
@@ -1184,16 +1281,6 @@ UV_EXTERN int uv_uptime(double* uptime);
 UV_EXTERN uv_os_fd_t uv_get_osfhandle(int fd);
 UV_EXTERN int uv_open_osfhandle(uv_os_fd_t os_fd);
 
-typedef struct {
-  long tv_sec;
-  long tv_usec;
-} uv_timeval_t;
-
-typedef struct {
-  int64_t tv_sec;
-  int32_t tv_usec;
-} uv_timeval64_t;
-
 typedef struct {
    uv_timeval_t ru_utime; /* user CPU time used */
    uv_timeval_t ru_stime; /* system CPU time used */
@@ -1214,11 +1301,15 @@ typedef struct {
 } uv_rusage_t;
 
 UV_EXTERN int uv_getrusage(uv_rusage_t* rusage);
+UV_EXTERN int uv_getrusage_thread(uv_rusage_t* rusage);
 
 UV_EXTERN int uv_os_homedir(char* buffer, size_t* size);
 UV_EXTERN int uv_os_tmpdir(char* buffer, size_t* size);
 UV_EXTERN int uv_os_get_passwd(uv_passwd_t* pwd);
 UV_EXTERN void uv_os_free_passwd(uv_passwd_t* pwd);
+UV_EXTERN int uv_os_get_passwd2(uv_passwd_t* pwd, uv_uid_t uid);
+UV_EXTERN int uv_os_get_group(uv_group_t* grp, uv_uid_t gid);
+UV_EXTERN void uv_os_free_group(uv_group_t* grp);
 UV_EXTERN uv_pid_t uv_os_getpid(void);
 UV_EXTERN uv_pid_t uv_os_getppid(void);
 
@@ -1242,8 +1333,21 @@ UV_EXTERN uv_pid_t uv_os_getppid(void);
 UV_EXTERN int uv_os_getpriority(uv_pid_t pid, int* priority);
 UV_EXTERN int uv_os_setpriority(uv_pid_t pid, int priority);
 
+enum {
+  UV_THREAD_PRIORITY_HIGHEST = 2,
+  UV_THREAD_PRIORITY_ABOVE_NORMAL = 1,
+  UV_THREAD_PRIORITY_NORMAL = 0,
+  UV_THREAD_PRIORITY_BELOW_NORMAL = -1,
+  UV_THREAD_PRIORITY_LOWEST = -2,
+};
+
+UV_EXTERN int uv_thread_getpriority(uv_thread_t tid, int* priority);
+UV_EXTERN int uv_thread_setpriority(uv_thread_t tid, int priority);
+
+UV_EXTERN unsigned int uv_available_parallelism(void);
 UV_EXTERN int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count);
 UV_EXTERN void uv_free_cpu_info(uv_cpu_info_t* cpu_infos, int count);
+UV_EXTERN int uv_cpumask_size(void);
 
 UV_EXTERN int uv_interface_addresses(uv_interface_address_t** addresses,
                                      int* count);
@@ -1276,6 +1380,15 @@ UV_EXTERN int uv_os_gethostname(char* buffer, size_t* size);
 
 UV_EXTERN int uv_os_uname(uv_utsname_t* buffer);
 
+struct uv_metrics_s {
+  uint64_t loop_count;
+  uint64_t events;
+  uint64_t events_waiting;
+  /* private */
+  uint64_t* reserved[13];
+};
+
+UV_EXTERN int uv_metrics_info(uv_loop_t* loop, uv_metrics_t* metrics);
 UV_EXTERN uint64_t uv_metrics_idle_time(uv_loop_t* loop);
 
 typedef enum {
@@ -1478,6 +1591,8 @@ UV_EXTERN int uv_fs_chmod(uv_loop_t* loop,
                           const char* path,
                           int mode,
                           uv_fs_cb cb);
+#define UV_FS_UTIME_NOW  (INFINITY)
+#define UV_FS_UTIME_OMIT (NAN)
 UV_EXTERN int uv_fs_utime(uv_loop_t* loop,
                           uv_fs_t* req,
                           const char* path,
@@ -1709,7 +1824,9 @@ UV_EXTERN int uv_chdir(const char* dir);
 UV_EXTERN uint64_t uv_get_free_memory(void);
 UV_EXTERN uint64_t uv_get_total_memory(void);
 UV_EXTERN uint64_t uv_get_constrained_memory(void);
+UV_EXTERN uint64_t uv_get_available_memory(void);
 
+UV_EXTERN int uv_clock_gettime(uv_clock_id clock_id, uv_timespec64_t* ts);
 UV_EXTERN uint64_t uv_hrtime(void);
 UV_EXTERN void uv_sleep(unsigned int msec);
 
@@ -1768,6 +1885,7 @@ UV_EXTERN int uv_gettimeofday(uv_timeval64_t* tv);
 typedef void (*uv_thread_cb)(void* arg);
 
 UV_EXTERN int uv_thread_create(uv_thread_t* tid, uv_thread_cb entry, void* arg);
+UV_EXTERN int uv_thread_detach(uv_thread_t* tid);
 
 typedef enum {
   UV_THREAD_NO_FLAGS = 0x00,
@@ -1786,9 +1904,20 @@ UV_EXTERN int uv_thread_create_ex(uv_thread_t* tid,
                                   const uv_thread_options_t* params,
                                   uv_thread_cb entry,
                                   void* arg);
+UV_EXTERN int uv_thread_setaffinity(uv_thread_t* tid,
+                                    char* cpumask,
+                                    char* oldmask,
+                                    size_t mask_size);
+UV_EXTERN int uv_thread_getaffinity(uv_thread_t* tid,
+                                    char* cpumask,
+                                    size_t mask_size);
+UV_EXTERN int uv_thread_getcpu(void);
 UV_EXTERN uv_thread_t uv_thread_self(void);
 UV_EXTERN int uv_thread_join(uv_thread_t *tid);
 UV_EXTERN int uv_thread_equal(const uv_thread_t* t1, const uv_thread_t* t2);
+UV_EXTERN int uv_thread_setname(const char* name);
+UV_EXTERN int uv_thread_getname(uv_thread_t* tid, char* name, size_t size);
+
 
 /* The presence of these unions force similar struct layout. */
 #define XX(_, name) uv_ ## name ## _t name;
@@ -1807,7 +1936,7 @@ struct uv_loop_s {
   void* data;
   /* Loop reference counting. */
   unsigned int active_handles;
-  void* handle_queue[2];
+  struct uv__queue handle_queue;
   union {
     void* unused;
     unsigned int count;
@@ -1822,6 +1951,18 @@ struct uv_loop_s {
 UV_EXTERN void* uv_loop_get_data(const uv_loop_t*);
 UV_EXTERN void uv_loop_set_data(uv_loop_t*, void* data);
 
+/* Unicode utilities needed for dealing with Windows. */
+UV_EXTERN size_t uv_utf16_length_as_wtf8(const uint16_t* utf16,
+                                         ssize_t utf16_len);
+UV_EXTERN int uv_utf16_to_wtf8(const uint16_t* utf16,
+                               ssize_t utf16_len,
+                               char** wtf8_ptr,
+                               size_t* wtf8_len_ptr);
+UV_EXTERN ssize_t uv_wtf8_length_as_utf16(const char* wtf8);
+UV_EXTERN void uv_wtf8_to_utf16(const char* wtf8,
+                                uint16_t* utf16,
+                                size_t utf16_len);
+
 /* Don't export the private CPP symbols. */
 #undef UV_HANDLE_TYPE_PRIVATE
 #undef UV_REQ_TYPE_PRIVATE

include/uv/android-ifaddrs.h

@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 1995, 1999
- *	Berkeley Software Design, Inc.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL Berkeley Software Design, Inc. BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	BSDI ifaddrs.h,v 2.5 2000/02/23 14:51:59 dab Exp
- */
-
-#ifndef	_IFADDRS_H_
-#define	_IFADDRS_H_
-
-struct ifaddrs {
-	struct ifaddrs  *ifa_next;
-	char		*ifa_name;
-	unsigned int	 ifa_flags;
-	struct sockaddr	*ifa_addr;
-	struct sockaddr	*ifa_netmask;
-	struct sockaddr	*ifa_dstaddr;
-	void		*ifa_data;
-};
-
-/*
- * This may have been defined in <net/if.h>.  Note that if <net/if.h> is
- * to be included it must be included before this header file.
- */
-#ifndef	ifa_broadaddr
-#define	ifa_broadaddr	ifa_dstaddr	/* broadcast address interface */
-#endif
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-extern int getifaddrs(struct ifaddrs **ifap);
-extern void freeifaddrs(struct ifaddrs *ifa);
-__END_DECLS
-
-#endif

include/uv/darwin.h

@@ -40,7 +40,7 @@
   void* cf_state;                                                             \
   uv_mutex_t cf_mutex;                                                        \
   uv_sem_t cf_sem;                                                            \
-  void* cf_signals[2];                                                        \
+  struct uv__queue cf_signals;                                                \
 
 #define UV_PLATFORM_FS_EVENT_FIELDS                                           \
   uv__io_t event_watcher;                                                     \
@@ -48,8 +48,8 @@
   int realpath_len;                                                           \
   int cf_flags;                                                               \
   uv_async_t* cf_cb;                                                          \
-  void* cf_events[2];                                                         \
-  void* cf_member[2];                                                         \
+  struct uv__queue cf_events;                                                 \
+  struct uv__queue cf_member;                                                 \
   int cf_error;                                                               \
   uv_mutex_t cf_mutex;                                                        \
 

include/uv/errno.h

@@ -413,7 +413,6 @@
 #elif defined(__APPLE__) || \
       defined(__DragonFly__) || \
       defined(__FreeBSD__) || \
-      defined(__FreeBSD_kernel__) || \
       defined(__NetBSD__) || \
       defined(__OpenBSD__)
 # define UV__EHOSTDOWN (-64)
@@ -457,4 +456,28 @@
 # define UV__ESOCKTNOSUPPORT (-4025)
 #endif
 
+/* FreeBSD defines ENODATA in /usr/include/c++/v1/errno.h which is only visible
+ * if C++ is being used. Define it directly to avoid problems when integrating
+ * libuv in a C++ project.
+ */
+#if defined(ENODATA) && !defined(_WIN32)
+# define UV__ENODATA UV__ERR(ENODATA)
+#elif defined(__FreeBSD__)
+# define UV__ENODATA (-9919)
+#else
+# define UV__ENODATA (-4024)
+#endif
+
+#if defined(EUNATCH) && !defined(_WIN32)
+# define UV__EUNATCH UV__ERR(EUNATCH)
+#else
+# define UV__EUNATCH (-4023)
+#endif
+
+#if defined(ENOEXEC) && !defined(_WIN32)
+# define UV__ENOEXEC UV__ERR(ENOEXEC)
+#else
+# define UV__ENOEXEC (-4022)
+#endif
+
 #endif /* UV_ERRNO_H_ */

include/uv/linux.h

@@ -28,7 +28,7 @@
   int inotify_fd;                                                             \
 
 #define UV_PLATFORM_FS_EVENT_FIELDS                                           \
-  void* watchers[2];                                                          \
+  struct uv__queue watchers;                                                  \
   int wd;                                                                     \
 
 #endif /* UV_LINUX_H */

include/uv/stdint-msvc2008.h

@@ -1,247 +0,0 @@
-// ISO C9x  compliant stdint.h for Microsoft Visual Studio
-// Based on ISO/IEC 9899:TC2 Committee draft (May 6, 2005) WG14/N1124 
-// 
-//  Copyright (c) 2006-2008 Alexander Chemeris
-// 
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are met:
-// 
-//   1. Redistributions of source code must retain the above copyright notice,
-//      this list of conditions and the following disclaimer.
-// 
-//   2. Redistributions in binary form must reproduce the above copyright
-//      notice, this list of conditions and the following disclaimer in the
-//      documentation and/or other materials provided with the distribution.
-// 
-//   3. The name of the author may be used to endorse or promote products
-//      derived from this software without specific prior written permission.
-// 
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
-// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
-// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// 
-///////////////////////////////////////////////////////////////////////////////
-
-#ifndef _MSC_VER // [
-#error "Use this header only with Microsoft Visual C++ compilers!"
-#endif // _MSC_VER ]
-
-#ifndef _MSC_STDINT_H_ // [
-#define _MSC_STDINT_H_
-
-#if _MSC_VER > 1000
-#pragma once
-#endif
-
-#include <limits.h>
-
-// For Visual Studio 6 in C++ mode and for many Visual Studio versions when
-// compiling for ARM we should wrap <wchar.h> include with 'extern "C++" {}'
-// or compiler give many errors like this:
-//   error C2733: second C linkage of overloaded function 'wmemchr' not allowed
-#ifdef __cplusplus
-extern "C" {
-#endif
-#  include <wchar.h>
-#ifdef __cplusplus
-}
-#endif
-
-// Define _W64 macros to mark types changing their size, like intptr_t.
-#ifndef _W64
-#  if !defined(__midl) && (defined(_X86_) || defined(_M_IX86)) && _MSC_VER >= 1300
-#     define _W64 __w64
-#  else
-#     define _W64
-#  endif
-#endif
-
-
-// 7.18.1 Integer types
-
-// 7.18.1.1 Exact-width integer types
-
-// Visual Studio 6 and Embedded Visual C++ 4 doesn't
-// realize that, e.g. char has the same size as __int8
-// so we give up on __intX for them.
-#if (_MSC_VER < 1300)
-   typedef signed char       int8_t;
-   typedef signed short      int16_t;
-   typedef signed int        int32_t;
-   typedef unsigned char     uint8_t;
-   typedef unsigned short    uint16_t;
-   typedef unsigned int      uint32_t;
-#else
-   typedef signed __int8     int8_t;
-   typedef signed __int16    int16_t;
-   typedef signed __int32    int32_t;
-   typedef unsigned __int8   uint8_t;
-   typedef unsigned __int16  uint16_t;
-   typedef unsigned __int32  uint32_t;
-#endif
-typedef signed __int64       int64_t;
-typedef unsigned __int64     uint64_t;
-
-
-// 7.18.1.2 Minimum-width integer types
-typedef int8_t    int_least8_t;
-typedef int16_t   int_least16_t;
-typedef int32_t   int_least32_t;
-typedef int64_t   int_least64_t;
-typedef uint8_t   uint_least8_t;
-typedef uint16_t  uint_least16_t;
-typedef uint32_t  uint_least32_t;
-typedef uint64_t  uint_least64_t;
-
-// 7.18.1.3 Fastest minimum-width integer types
-typedef int8_t    int_fast8_t;
-typedef int16_t   int_fast16_t;
-typedef int32_t   int_fast32_t;
-typedef int64_t   int_fast64_t;
-typedef uint8_t   uint_fast8_t;
-typedef uint16_t  uint_fast16_t;
-typedef uint32_t  uint_fast32_t;
-typedef uint64_t  uint_fast64_t;
-
-// 7.18.1.4 Integer types capable of holding object pointers
-#ifdef _WIN64 // [
-   typedef signed __int64    intptr_t;
-   typedef unsigned __int64  uintptr_t;
-#else // _WIN64 ][
-   typedef _W64 signed int   intptr_t;
-   typedef _W64 unsigned int uintptr_t;
-#endif // _WIN64 ]
-
-// 7.18.1.5 Greatest-width integer types
-typedef int64_t   intmax_t;
-typedef uint64_t  uintmax_t;
-
-
-// 7.18.2 Limits of specified-width integer types
-
-#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS) // [   See footnote 220 at page 257 and footnote 221 at page 259
-
-// 7.18.2.1 Limits of exact-width integer types
-#define INT8_MIN     ((int8_t)_I8_MIN)
-#define INT8_MAX     _I8_MAX
-#define INT16_MIN    ((int16_t)_I16_MIN)
-#define INT16_MAX    _I16_MAX
-#define INT32_MIN    ((int32_t)_I32_MIN)
-#define INT32_MAX    _I32_MAX
-#define INT64_MIN    ((int64_t)_I64_MIN)
-#define INT64_MAX    _I64_MAX
-#define UINT8_MAX    _UI8_MAX
-#define UINT16_MAX   _UI16_MAX
-#define UINT32_MAX   _UI32_MAX
-#define UINT64_MAX   _UI64_MAX
-
-// 7.18.2.2 Limits of minimum-width integer types
-#define INT_LEAST8_MIN    INT8_MIN
-#define INT_LEAST8_MAX    INT8_MAX
-#define INT_LEAST16_MIN   INT16_MIN
-#define INT_LEAST16_MAX   INT16_MAX
-#define INT_LEAST32_MIN   INT32_MIN
-#define INT_LEAST32_MAX   INT32_MAX
-#define INT_LEAST64_MIN   INT64_MIN
-#define INT_LEAST64_MAX   INT64_MAX
-#define UINT_LEAST8_MAX   UINT8_MAX
-#define UINT_LEAST16_MAX  UINT16_MAX
-#define UINT_LEAST32_MAX  UINT32_MAX
-#define UINT_LEAST64_MAX  UINT64_MAX
-
-// 7.18.2.3 Limits of fastest minimum-width integer types
-#define INT_FAST8_MIN    INT8_MIN
-#define INT_FAST8_MAX    INT8_MAX
-#define INT_FAST16_MIN   INT16_MIN
-#define INT_FAST16_MAX   INT16_MAX
-#define INT_FAST32_MIN   INT32_MIN
-#define INT_FAST32_MAX   INT32_MAX
-#define INT_FAST64_MIN   INT64_MIN
-#define INT_FAST64_MAX   INT64_MAX
-#define UINT_FAST8_MAX   UINT8_MAX
-#define UINT_FAST16_MAX  UINT16_MAX
-#define UINT_FAST32_MAX  UINT32_MAX
-#define UINT_FAST64_MAX  UINT64_MAX
-
-// 7.18.2.4 Limits of integer types capable of holding object pointers
-#ifdef _WIN64 // [
-#  define INTPTR_MIN   INT64_MIN
-#  define INTPTR_MAX   INT64_MAX
-#  define UINTPTR_MAX  UINT64_MAX
-#else // _WIN64 ][
-#  define INTPTR_MIN   INT32_MIN
-#  define INTPTR_MAX   INT32_MAX
-#  define UINTPTR_MAX  UINT32_MAX
-#endif // _WIN64 ]
-
-// 7.18.2.5 Limits of greatest-width integer types
-#define INTMAX_MIN   INT64_MIN
-#define INTMAX_MAX   INT64_MAX
-#define UINTMAX_MAX  UINT64_MAX
-
-// 7.18.3 Limits of other integer types
-
-#ifdef _WIN64 // [
-#  define PTRDIFF_MIN  _I64_MIN
-#  define PTRDIFF_MAX  _I64_MAX
-#else  // _WIN64 ][
-#  define PTRDIFF_MIN  _I32_MIN
-#  define PTRDIFF_MAX  _I32_MAX
-#endif  // _WIN64 ]
-
-#define SIG_ATOMIC_MIN  INT_MIN
-#define SIG_ATOMIC_MAX  INT_MAX
-
-#ifndef SIZE_MAX // [
-#  ifdef _WIN64 // [
-#     define SIZE_MAX  _UI64_MAX
-#  else // _WIN64 ][
-#     define SIZE_MAX  _UI32_MAX
-#  endif // _WIN64 ]
-#endif // SIZE_MAX ]
-
-// WCHAR_MIN and WCHAR_MAX are also defined in <wchar.h>
-#ifndef WCHAR_MIN // [
-#  define WCHAR_MIN  0
-#endif  // WCHAR_MIN ]
-#ifndef WCHAR_MAX // [
-#  define WCHAR_MAX  _UI16_MAX
-#endif  // WCHAR_MAX ]
-
-#define WINT_MIN  0
-#define WINT_MAX  _UI16_MAX
-
-#endif // __STDC_LIMIT_MACROS ]
-
-
-// 7.18.4 Limits of other integer types
-
-#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) // [   See footnote 224 at page 260
-
-// 7.18.4.1 Macros for minimum-width integer constants
-
-#define INT8_C(val)  val##i8
-#define INT16_C(val) val##i16
-#define INT32_C(val) val##i32
-#define INT64_C(val) val##i64
-
-#define UINT8_C(val)  val##ui8
-#define UINT16_C(val) val##ui16
-#define UINT32_C(val) val##ui32
-#define UINT64_C(val) val##ui64
-
-// 7.18.4.2 Macros for greatest-width integer constants
-#define INTMAX_C   INT64_C
-#define UINTMAX_C  UINT64_C
-
-#endif // __STDC_CONSTANT_MACROS ]
-
-
-#endif // _MSC_STDINT_H_ ]

include/uv/threadpool.h

@@ -31,7 +31,7 @@ struct uv__work {
   void (*work)(struct uv__work *w);
   void (*done)(struct uv__work *w, int status);
   struct uv_loop_s* loop;
-  void* wq[2];
+  struct uv__queue wq;
 };
 
 #endif /* UV_THREADPOOL_H_ */

include/uv/tree.h

@@ -35,21 +35,7 @@
 #endif
 
 /*
- * This file defines data structures for different types of trees:
- * splay trees and red-black trees.
- *
- * A splay tree is a self-organizing data structure.  Every operation
- * on the tree causes a splay to happen.  The splay moves the requested
- * node to the root of the tree and partly rebalances it.
- *
- * This has the benefit that request locality causes faster lookups as
- * the requested nodes move to the top of the tree.  On the other hand,
- * every lookup causes memory writes.
- *
- * The Balance Theorem bounds the total access time for m operations
- * and n inserts on an initially empty tree as O((m + n)lg n).  The
- * amortized cost for a sequence of m accesses to a splay tree is O(lg n);
- *
+ * This file defines data structures for red-black trees.
  * A red-black tree is a binary search tree with the node color as an
  * extra attribute.  It fulfills a set of conditions:
  *  - every search path from the root to a leaf consists of the
@@ -61,239 +47,6 @@
  * The maximum height of a red-black tree is 2lg (n+1).
  */
 
-#define SPLAY_HEAD(name, type)                                                \
-struct name {                                                                 \
-  struct type *sph_root; /* root of the tree */                               \
-}
-
-#define SPLAY_INITIALIZER(root)                                               \
-  { NULL }
-
-#define SPLAY_INIT(root) do {                                                 \
-  (root)->sph_root = NULL;                                                    \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_ENTRY(type)                                                     \
-struct {                                                                      \
-  struct type *spe_left;          /* left element */                          \
-  struct type *spe_right;         /* right element */                         \
-}
-
-#define SPLAY_LEFT(elm, field)    (elm)->field.spe_left
-#define SPLAY_RIGHT(elm, field)   (elm)->field.spe_right
-#define SPLAY_ROOT(head)          (head)->sph_root
-#define SPLAY_EMPTY(head)         (SPLAY_ROOT(head) == NULL)
-
-/* SPLAY_ROTATE_{LEFT,RIGHT} expect that tmp hold SPLAY_{RIGHT,LEFT} */
-#define SPLAY_ROTATE_RIGHT(head, tmp, field) do {                             \
-  SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(tmp, field);              \
-  SPLAY_RIGHT(tmp, field) = (head)->sph_root;                                 \
-  (head)->sph_root = tmp;                                                     \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_ROTATE_LEFT(head, tmp, field) do {                              \
-  SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(tmp, field);              \
-  SPLAY_LEFT(tmp, field) = (head)->sph_root;                                  \
-  (head)->sph_root = tmp;                                                     \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_LINKLEFT(head, tmp, field) do {                                 \
-  SPLAY_LEFT(tmp, field) = (head)->sph_root;                                  \
-  tmp = (head)->sph_root;                                                     \
-  (head)->sph_root = SPLAY_LEFT((head)->sph_root, field);                     \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_LINKRIGHT(head, tmp, field) do {                                \
-  SPLAY_RIGHT(tmp, field) = (head)->sph_root;                                 \
-  tmp = (head)->sph_root;                                                     \
-  (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);                    \
-} while (/*CONSTCOND*/ 0)
-
-#define SPLAY_ASSEMBLE(head, node, left, right, field) do {                   \
-  SPLAY_RIGHT(left, field) = SPLAY_LEFT((head)->sph_root, field);             \
-  SPLAY_LEFT(right, field) = SPLAY_RIGHT((head)->sph_root, field);            \
-  SPLAY_LEFT((head)->sph_root, field) = SPLAY_RIGHT(node, field);             \
-  SPLAY_RIGHT((head)->sph_root, field) = SPLAY_LEFT(node, field);             \
-} while (/*CONSTCOND*/ 0)
-
-/* Generates prototypes and inline functions */
-
-#define SPLAY_PROTOTYPE(name, type, field, cmp)                               \
-void name##_SPLAY(struct name *, struct type *);                              \
-void name##_SPLAY_MINMAX(struct name *, int);                                 \
-struct type *name##_SPLAY_INSERT(struct name *, struct type *);               \
-struct type *name##_SPLAY_REMOVE(struct name *, struct type *);               \
-                                                                              \
-/* Finds the node with the same key as elm */                                 \
-static __inline struct type *                                                 \
-name##_SPLAY_FIND(struct name *head, struct type *elm)                        \
-{                                                                             \
-  if (SPLAY_EMPTY(head))                                                      \
-    return(NULL);                                                             \
-  name##_SPLAY(head, elm);                                                    \
-  if ((cmp)(elm, (head)->sph_root) == 0)                                      \
-    return (head->sph_root);                                                  \
-  return (NULL);                                                              \
-}                                                                             \
-                                                                              \
-static __inline struct type *                                                 \
-name##_SPLAY_NEXT(struct name *head, struct type *elm)                        \
-{                                                                             \
-  name##_SPLAY(head, elm);                                                    \
-  if (SPLAY_RIGHT(elm, field) != NULL) {                                      \
-    elm = SPLAY_RIGHT(elm, field);                                            \
-    while (SPLAY_LEFT(elm, field) != NULL) {                                  \
-      elm = SPLAY_LEFT(elm, field);                                           \
-    }                                                                         \
-  } else                                                                      \
-    elm = NULL;                                                               \
-  return (elm);                                                               \
-}                                                                             \
-                                                                              \
-static __inline struct type *                                                 \
-name##_SPLAY_MIN_MAX(struct name *head, int val)                              \
-{                                                                             \
-  name##_SPLAY_MINMAX(head, val);                                             \
-  return (SPLAY_ROOT(head));                                                  \
-}
-
-/* Main splay operation.
- * Moves node close to the key of elm to top
- */
-#define SPLAY_GENERATE(name, type, field, cmp)                                \
-struct type *                                                                 \
-name##_SPLAY_INSERT(struct name *head, struct type *elm)                      \
-{                                                                             \
-    if (SPLAY_EMPTY(head)) {                                                  \
-      SPLAY_LEFT(elm, field) = SPLAY_RIGHT(elm, field) = NULL;                \
-    } else {                                                                  \
-      int __comp;                                                             \
-      name##_SPLAY(head, elm);                                                \
-      __comp = (cmp)(elm, (head)->sph_root);                                  \
-      if(__comp < 0) {                                                        \
-        SPLAY_LEFT(elm, field) = SPLAY_LEFT((head)->sph_root, field);         \
-        SPLAY_RIGHT(elm, field) = (head)->sph_root;                           \
-        SPLAY_LEFT((head)->sph_root, field) = NULL;                           \
-      } else if (__comp > 0) {                                                \
-        SPLAY_RIGHT(elm, field) = SPLAY_RIGHT((head)->sph_root, field);       \
-        SPLAY_LEFT(elm, field) = (head)->sph_root;                            \
-        SPLAY_RIGHT((head)->sph_root, field) = NULL;                          \
-      } else                                                                  \
-        return ((head)->sph_root);                                            \
-    }                                                                         \
-    (head)->sph_root = (elm);                                                 \
-    return (NULL);                                                            \
-}                                                                             \
-                                                                              \
-struct type *                                                                 \
-name##_SPLAY_REMOVE(struct name *head, struct type *elm)                      \
-{                                                                             \
-  struct type *__tmp;                                                         \
-  if (SPLAY_EMPTY(head))                                                      \
-    return (NULL);                                                            \
-  name##_SPLAY(head, elm);                                                    \
-  if ((cmp)(elm, (head)->sph_root) == 0) {                                    \
-    if (SPLAY_LEFT((head)->sph_root, field) == NULL) {                        \
-      (head)->sph_root = SPLAY_RIGHT((head)->sph_root, field);                \
-    } else {                                                                  \
-      __tmp = SPLAY_RIGHT((head)->sph_root, field);                           \
-      (head)->sph_root = SPLAY_LEFT((head)->sph_root, field);                 \
-      name##_SPLAY(head, elm);                                                \
-      SPLAY_RIGHT((head)->sph_root, field) = __tmp;                           \
-    }                                                                         \
-    return (elm);                                                             \
-  }                                                                           \
-  return (NULL);                                                              \
-}                                                                             \
-                                                                              \
-void                                                                          \
-name##_SPLAY(struct name *head, struct type *elm)                             \
-{                                                                             \
-  struct type __node, *__left, *__right, *__tmp;                              \
-  int __comp;                                                                 \
-                                                                              \
-  SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;            \
-  __left = __right = &__node;                                                 \
-                                                                              \
-  while ((__comp = (cmp)(elm, (head)->sph_root)) != 0) {                      \
-    if (__comp < 0) {                                                         \
-      __tmp = SPLAY_LEFT((head)->sph_root, field);                            \
-      if (__tmp == NULL)                                                      \
-        break;                                                                \
-      if ((cmp)(elm, __tmp) < 0){                                             \
-        SPLAY_ROTATE_RIGHT(head, __tmp, field);                               \
-        if (SPLAY_LEFT((head)->sph_root, field) == NULL)                      \
-          break;                                                              \
-      }                                                                       \
-      SPLAY_LINKLEFT(head, __right, field);                                   \
-    } else if (__comp > 0) {                                                  \
-      __tmp = SPLAY_RIGHT((head)->sph_root, field);                           \
-      if (__tmp == NULL)                                                      \
-        break;                                                                \
-      if ((cmp)(elm, __tmp) > 0){                                             \
-        SPLAY_ROTATE_LEFT(head, __tmp, field);                                \
-        if (SPLAY_RIGHT((head)->sph_root, field) == NULL)                     \
-          break;                                                              \
-      }                                                                       \
-      SPLAY_LINKRIGHT(head, __left, field);                                   \
-    }                                                                         \
-  }                                                                           \
-  SPLAY_ASSEMBLE(head, &__node, __left, __right, field);                      \
-}                                                                             \
-                                                                              \
-/* Splay with either the minimum or the maximum element                       \
- * Used to find minimum or maximum element in tree.                           \
- */                                                                           \
-void name##_SPLAY_MINMAX(struct name *head, int __comp)                       \
-{                                                                             \
-  struct type __node, *__left, *__right, *__tmp;                              \
-                                                                              \
-  SPLAY_LEFT(&__node, field) = SPLAY_RIGHT(&__node, field) = NULL;            \
-  __left = __right = &__node;                                                 \
-                                                                              \
-  for (;;) {                                                                  \
-    if (__comp < 0) {                                                         \
-      __tmp = SPLAY_LEFT((head)->sph_root, field);                            \
-      if (__tmp == NULL)                                                      \
-        break;                                                                \
-      if (__comp < 0){                                                        \
-        SPLAY_ROTATE_RIGHT(head, __tmp, field);                               \
-        if (SPLAY_LEFT((head)->sph_root, field) == NULL)                      \
-          break;                                                              \
-      }                                                                       \
-      SPLAY_LINKLEFT(head, __right, field);                                   \
-    } else if (__comp > 0) {                                                  \
-      __tmp = SPLAY_RIGHT((head)->sph_root, field);                           \
-      if (__tmp == NULL)                                                      \
-        break;                                                                \
-      if (__comp > 0) {                                                       \
-        SPLAY_ROTATE_LEFT(head, __tmp, field);                                \
-        if (SPLAY_RIGHT((head)->sph_root, field) == NULL)                     \
-          break;                                                              \
-      }                                                                       \
-      SPLAY_LINKRIGHT(head, __left, field);                                   \
-    }                                                                         \
-  }                                                                           \
-  SPLAY_ASSEMBLE(head, &__node, __left, __right, field);                      \
-}
-
-#define SPLAY_NEGINF  -1
-#define SPLAY_INF     1
-
-#define SPLAY_INSERT(name, x, y)  name##_SPLAY_INSERT(x, y)
-#define SPLAY_REMOVE(name, x, y)  name##_SPLAY_REMOVE(x, y)
-#define SPLAY_FIND(name, x, y)    name##_SPLAY_FIND(x, y)
-#define SPLAY_NEXT(name, x, y)    name##_SPLAY_NEXT(x, y)
-#define SPLAY_MIN(name, x)        (SPLAY_EMPTY(x) ? NULL                      \
-                                  : name##_SPLAY_MIN_MAX(x, SPLAY_NEGINF))
-#define SPLAY_MAX(name, x)        (SPLAY_EMPTY(x) ? NULL                      \
-                                  : name##_SPLAY_MIN_MAX(x, SPLAY_INF))
-
-#define SPLAY_FOREACH(x, name, head)                                          \
-  for ((x) = SPLAY_MIN(name, head);                                           \
-       (x) != NULL;                                                           \
-       (x) = SPLAY_NEXT(name, head, x))
-
 /* Macros that define a red-black tree */
 #define RB_HEAD(name, type)                                                   \
 struct name {                                                                 \
@@ -730,8 +483,8 @@ name##_RB_MINMAX(struct name *head, int val)                                  \
 #define RB_REMOVE(name, x, y)   name##_RB_REMOVE(x, y)
 #define RB_FIND(name, x, y)     name##_RB_FIND(x, y)
 #define RB_NFIND(name, x, y)    name##_RB_NFIND(x, y)
-#define RB_NEXT(name, x, y)     name##_RB_NEXT(y)
-#define RB_PREV(name, x, y)     name##_RB_PREV(y)
+#define RB_NEXT(name, x)        name##_RB_NEXT(x)
+#define RB_PREV(name, x)        name##_RB_PREV(x)
 #define RB_MIN(name, x)         name##_RB_MINMAX(x, RB_NEGINF)
 #define RB_MAX(name, x)         name##_RB_MINMAX(x, RB_INF)
 

include/uv/unix.h

@@ -59,7 +59,6 @@
 # include "uv/darwin.h"
 #elif defined(__DragonFly__)       || \
       defined(__FreeBSD__)         || \
-      defined(__FreeBSD_kernel__)  || \
       defined(__OpenBSD__)         || \
       defined(__NetBSD__)
 # include "uv/bsd.h"
@@ -93,8 +92,8 @@ typedef struct uv__io_s uv__io_t;
 
 struct uv__io_s {
   uv__io_cb cb;
-  void* pending_queue[2];
-  void* watcher_queue[2];
+  struct uv__queue pending_queue;
+  struct uv__queue watcher_queue;
   unsigned int pevents; /* Pending event mask i.e. mask at next tick. */
   unsigned int events;  /* Current event mask. */
   int fd;
@@ -221,21 +220,21 @@ typedef struct {
 #define UV_LOOP_PRIVATE_FIELDS                                                \
   unsigned long flags;                                                        \
   int backend_fd;                                                             \
-  void* pending_queue[2];                                                     \
-  void* watcher_queue[2];                                                     \
+  struct uv__queue pending_queue;                                             \
+  struct uv__queue watcher_queue;                                             \
   uv__io_t** watchers;                                                        \
   unsigned int nwatchers;                                                     \
   unsigned int nfds;                                                          \
-  void* wq[2];                                                                \
+  struct uv__queue wq;                                                        \
   uv_mutex_t wq_mutex;                                                        \
   uv_async_t wq_async;                                                        \
   uv_rwlock_t cloexec_lock;                                                   \
   uv_handle_t* closing_handles;                                               \
-  void* process_handles[2];                                                   \
-  void* prepare_handles[2];                                                   \
-  void* check_handles[2];                                                     \
-  void* idle_handles[2];                                                      \
-  void* async_handles[2];                                                     \
+  struct uv__queue process_handles;                                           \
+  struct uv__queue prepare_handles;                                           \
+  struct uv__queue check_handles;                                             \
+  struct uv__queue idle_handles;                                              \
+  struct uv__queue async_handles;                                             \
   void (*async_unused)(void);  /* TODO(bnoordhuis) Remove in libuv v2. */     \
   uv__io_t async_io_watcher;                                                  \
   int async_wfd;                                                              \
@@ -258,7 +257,7 @@ typedef struct {
 #define UV_PRIVATE_REQ_TYPES /* empty */
 
 #define UV_WRITE_PRIVATE_FIELDS                                               \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
   unsigned int write_index;                                                   \
   uv_buf_t* bufs;                                                             \
   unsigned int nbufs;                                                         \
@@ -266,13 +265,16 @@ typedef struct {
   uv_buf_t bufsml[4];                                                         \
 
 #define UV_CONNECT_PRIVATE_FIELDS                                             \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
 
 #define UV_SHUTDOWN_PRIVATE_FIELDS /* empty */
 
 #define UV_UDP_SEND_PRIVATE_FIELDS                                            \
-  void* queue[2];                                                             \
-  struct sockaddr_storage addr;                                               \
+  struct uv__queue queue;                                                     \
+  union {                                                                     \
+    struct sockaddr addr;                                                     \
+    struct sockaddr_storage storage;                                          \
+  } u;                                                                        \
   unsigned int nbufs;                                                         \
   uv_buf_t* bufs;                                                             \
   ssize_t status;                                                             \
@@ -287,8 +289,8 @@ typedef struct {
   uv_connect_t *connect_req;                                                  \
   uv_shutdown_t *shutdown_req;                                                \
   uv__io_t io_watcher;                                                        \
-  void* write_queue[2];                                                       \
-  void* write_completed_queue[2];                                             \
+  struct uv__queue write_queue;                                               \
+  struct uv__queue write_completed_queue;                                     \
   uv_connection_cb connection_cb;                                             \
   int delayed_error;                                                          \
   int accepted_fd;                                                            \
@@ -301,35 +303,38 @@ typedef struct {
   uv_alloc_cb alloc_cb;                                                       \
   uv_udp_recv_cb recv_cb;                                                     \
   uv__io_t io_watcher;                                                        \
-  void* write_queue[2];                                                       \
-  void* write_completed_queue[2];                                             \
+  struct uv__queue write_queue;                                               \
+  struct uv__queue write_completed_queue;                                     \
 
 #define UV_PIPE_PRIVATE_FIELDS                                                \
-  const char* pipe_fname; /* strdup'ed */
+  const char* pipe_fname; /* NULL or strdup'ed */
 
 #define UV_POLL_PRIVATE_FIELDS                                                \
   uv__io_t io_watcher;
 
 #define UV_PREPARE_PRIVATE_FIELDS                                             \
   uv_prepare_cb prepare_cb;                                                   \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
 
 #define UV_CHECK_PRIVATE_FIELDS                                               \
   uv_check_cb check_cb;                                                       \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
 
 #define UV_IDLE_PRIVATE_FIELDS                                                \
   uv_idle_cb idle_cb;                                                         \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
 
 #define UV_ASYNC_PRIVATE_FIELDS                                               \
   uv_async_cb async_cb;                                                       \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
   int pending;                                                                \
 
 #define UV_TIMER_PRIVATE_FIELDS                                               \
   uv_timer_cb timer_cb;                                                       \
-  void* heap_node[3];                                                         \
+  union {                                                                     \
+    void* heap[3];                                                            \
+    struct uv__queue queue;                                                   \
+  } node;                                                                     \
   uint64_t timeout;                                                           \
   uint64_t repeat;                                                            \
   uint64_t start_id;
@@ -353,7 +358,7 @@ typedef struct {
   int retcode;
 
 #define UV_PROCESS_PRIVATE_FIELDS                                             \
-  void* queue[2];                                                             \
+  struct uv__queue queue;                                                     \
   int status;                                                                 \
 
 #define UV_FS_PRIVATE_FIELDS                                                  \
@@ -418,6 +423,8 @@ typedef struct {
 # define UV_FS_O_DIRECT       0x04000
 #elif defined(__linux__) && defined(__x86_64__)
 # define UV_FS_O_DIRECT       0x04000
+#elif defined(__linux__) && defined(__loongarch__)
+# define UV_FS_O_DIRECT       0x04000
 #elif defined(O_DIRECT)
 # define UV_FS_O_DIRECT       O_DIRECT
 #else

include/uv/version.h

@@ -31,10 +31,10 @@
  */
 
 #define UV_VERSION_MAJOR 1
-#define UV_VERSION_MINOR 43
-#define UV_VERSION_PATCH 0
-#define UV_VERSION_IS_RELEASE 1
-#define UV_VERSION_SUFFIX ""
+#define UV_VERSION_MINOR 50
+#define UV_VERSION_PATCH 1
+#define UV_VERSION_IS_RELEASE 0
+#define UV_VERSION_SUFFIX "dev"
 
 #define UV_VERSION_HEX  ((UV_VERSION_MAJOR << 16) | \
                          (UV_VERSION_MINOR <<  8) | \

include/uv/win.h

@@ -20,7 +20,7 @@
  */
 
 #ifndef _WIN32_WINNT
-# define _WIN32_WINNT   0x0600
+# define _WIN32_WINNT   0x0A00
 #endif
 
 #if !defined(_SSIZE_T_) && !defined(_SSIZE_T_DEFINED)
@@ -32,20 +32,12 @@ typedef intptr_t ssize_t;
 
 #include <winsock2.h>
 
-#if defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
-typedef struct pollfd {
-  SOCKET fd;
-  short  events;
-  short  revents;
-} WSAPOLLFD, *PWSAPOLLFD, *LPWSAPOLLFD;
-#endif
-
 #ifndef LOCALE_INVARIANT
 # define LOCALE_INVARIANT 0x007f
 #endif
 
 #include <mswsock.h>
-// Disable the typedef in mstcpip.h of MinGW.
+/* Disable the typedef in mstcpip.h of MinGW. */
 #define _TCP_INITIAL_RTO_PARAMETERS _TCP_INITIAL_RTO_PARAMETERS__AVOID
 #define TCP_INITIAL_RTO_PARAMETERS TCP_INITIAL_RTO_PARAMETERS__AVOID
 #define PTCP_INITIAL_RTO_PARAMETERS PTCP_INITIAL_RTO_PARAMETERS__AVOID
@@ -59,12 +51,7 @@ typedef struct pollfd {
 #include <signal.h>
 #include <fcntl.h>
 #include <sys/stat.h>
-
-#if defined(_MSC_VER) && _MSC_VER < 1600
-# include "uv/stdint-msvc2008.h"
-#else
 #include <stdint.h>
-#endif
 
 #include "uv/tree.h"
 #include "uv/threadpool.h"
@@ -75,6 +62,11 @@ typedef struct pollfd {
 # define S_IFLNK 0xA000
 #endif
 
+/* Define missing in Windows Kit Include\{VERSION}\ucrt\sys\stat.h */
+#if defined(_CRT_INTERNAL_NONSTDC_NAMES) && _CRT_INTERNAL_NONSTDC_NAMES && !defined(S_IFIFO)
+# define S_IFIFO _S_IFIFO
+#endif
+
 /* Additional signals supported by uv_signal and or uv_kill. The CRT defines
  * the following signals already:
  *
@@ -91,6 +83,7 @@ typedef struct pollfd {
  * variants (Linux and Darwin)
  */
 #define SIGHUP                1
+#define SIGQUIT               3
 #define SIGKILL               9
 #define SIGWINCH             28
 
@@ -223,7 +216,7 @@ typedef struct _AFD_POLL_INFO {
   AFD_POLL_HANDLE_INFO Handles[1];
 } AFD_POLL_INFO, *PAFD_POLL_INFO;
 
-#define UV_MSAFD_PROVIDER_COUNT 3
+#define UV_MSAFD_PROVIDER_COUNT 4
 
 
 /**
@@ -263,29 +256,23 @@ typedef union {
   } unused_; /* TODO: retained for ABI compatibility; remove me in v2.x. */
 } uv_cond_t;
 
-typedef union {
-  struct {
-    unsigned int num_readers_;
-    CRITICAL_SECTION num_readers_lock_;
-    HANDLE write_semaphore_;
-  } state_;
-  /* TODO: remove me in v2.x. */
-  struct {
-    SRWLOCK unused_;
-  } unused1_;
-  /* TODO: remove me in v2.x. */
-  struct {
-    uv_mutex_t unused1_;
-    uv_mutex_t unused2_;
-  } unused2_;
+typedef struct {
+  SRWLOCK read_write_lock_;
+  /* TODO: retained for ABI compatibility; remove me in v2.x */
+#ifdef _WIN64
+  unsigned char padding_[72];
+#else
+  unsigned char padding_[44];
+#endif
 } uv_rwlock_t;
 
 typedef struct {
-  unsigned int n;
-  unsigned int count;
+  unsigned threshold;
+  unsigned in;
   uv_mutex_t mutex;
-  uv_sem_t turnstile1;
-  uv_sem_t turnstile2;
+  /* TODO: in v2 make this a uv_cond_t, without unused_ */
+  CONDITION_VARIABLE cond;
+  unsigned out;
 } uv_barrier_t;
 
 typedef struct {
@@ -295,8 +282,8 @@ typedef struct {
 #define UV_ONCE_INIT { 0, NULL }
 
 typedef struct uv_once_s {
-  unsigned char ran;
-  HANDLE event;
+  unsigned char unused;
+  INIT_ONCE init_once;
 } uv_once_t;
 
 /* Platform-specific definitions for uv_spawn support. */
@@ -355,14 +342,14 @@ typedef struct {
   uv_idle_t* next_idle_handle;                                                \
   /* This handle holds the peer sockets for the fast variant of uv_poll_t */  \
   SOCKET poll_peer_sockets[UV_MSAFD_PROVIDER_COUNT];                          \
-  /* Counter to keep track of active tcp streams */                           \
+  /* No longer used. */                                                       \
   unsigned int active_tcp_streams;                                            \
-  /* Counter to keep track of active udp streams */                           \
+  /* No longer used. */                                                       \
   unsigned int active_udp_streams;                                            \
   /* Counter to started timer */                                              \
   uint64_t timer_counter;                                                     \
   /* Threadpool */                                                            \
-  void* wq[2];                                                                \
+  struct uv__queue wq;                                                        \
   uv_mutex_t wq_mutex;                                                        \
   uv_async_t wq_async;
 
@@ -384,6 +371,13 @@ typedef struct {
       OVERLAPPED overlapped;                                                  \
       size_t queued_bytes;                                                    \
     } io;                                                                     \
+    /* in v2, we can move these to the UV_CONNECT_PRIVATE_FIELDS */           \
+    struct {                                                                  \
+      ULONG_PTR result; /* overlapped.Internal is reused to hold the result */\
+      HANDLE pipeHandle;                                                      \
+      DWORD duplex_flags;                                                     \
+      WCHAR* name;                                                             \
+    } connect;                                                                \
   } u;                                                                        \
   struct uv_req_s* next_req;
 
@@ -484,7 +478,7 @@ typedef struct {
     uint32_t payload_remaining;                                               \
     uint64_t dummy; /* TODO: retained for ABI compat; remove this in v2.x. */ \
   } ipc_data_frame;                                                           \
-  void* ipc_xfer_queue[2];                                                    \
+  struct uv__queue ipc_xfer_queue;                                            \
   int ipc_xfer_queue_length;                                                  \
   uv_write_t* non_overlapped_writes_tail;                                     \
   CRITICAL_SECTION readfile_thread_lock;                                      \
@@ -498,15 +492,18 @@ typedef struct {
     struct { uv_pipe_connection_fields } conn;                                \
   } pipe;
 
-/* TODO: put the parser states in an union - TTY handles are always half-duplex
+/* TODO: put the parser states in a union - TTY handles are always half-duplex
  * so read-state can safely overlap write-state. */
 #define UV_TTY_PRIVATE_FIELDS                                                 \
   HANDLE handle;                                                              \
   union {                                                                     \
     struct {                                                                  \
       /* Used for readable TTY handles */                                     \
+      union {                                                                 \
         /* TODO: remove me in v2.x. */                                        \
         HANDLE unused_;                                                       \
+        int mode;                                                             \
+      } mode;                                                                 \
       uv_buf_t read_line_buffer;                                              \
       HANDLE read_raw_wait;                                                   \
       /* Fields used for translating win keystrokes into vt100 characters */  \
@@ -548,7 +545,10 @@ typedef struct {
   unsigned char events;
 
 #define UV_TIMER_PRIVATE_FIELDS                                               \
-  void* heap_node[3];                                                         \
+  union {                                                                     \
+    void* heap[3];                                                            \
+    struct uv__queue queue;                                                   \
+  } node;                                                                     \
   int unused;                                                                 \
   uint64_t timeout;                                                           \
   uint64_t repeat;                                                            \
@@ -606,7 +606,7 @@ typedef struct {
   struct uv_process_exit_s {                                                  \
     UV_REQ_FIELDS                                                             \
   } exit_req;                                                                 \
-  BYTE* child_stdio_buffer;                                                   \
+  void* unused; /* TODO: retained for ABI compat; remove this in v2.x. */     \
   int exit_signal;                                                            \
   HANDLE wait_handle;                                                         \
   HANDLE process_handle;                                                      \

libuv-static.pc.in

@@ -8,5 +8,5 @@ Version: @PACKAGE_VERSION@
 Description: multi-platform support library with a focus on asynchronous I/O.
 URL: http://libuv.org/
 
-Libs: -L${libdir} -luv_a @LIBS@
+Libs: -L${libdir} -l:libuv.a @LIBS@
 Cflags: -I${includedir}

libuv.pc.in

@@ -2,6 +2,7 @@ prefix=@prefix@
 exec_prefix=${prefix}
 libdir=@libdir@
 includedir=@includedir@
+LIBUV_STATIC=-L${libdir} -l:libuv.a @LIBS@
 
 Name: libuv
 Version: @PACKAGE_VERSION@

m4/libuv-check-flags.m4

@@ -1,6 +1,7 @@
 dnl Macros to check the presence of generic (non-typed) symbols.
 dnl Copyright (c) 2006-2008 Diego Pettenò <flameeyes gmail com>
 dnl Copyright (c) 2006-2008 xine project
+dnl Copyright (c) 2021 libuv project
 dnl
 dnl This program is free software; you can redistribute it and/or modify
 dnl it under the terms of the GNU General Public License as published by
@@ -63,7 +64,7 @@ AC_DEFUN([CC_CHECK_CFLAGS], [
 ])
 
 dnl CC_CHECK_CFLAG_APPEND(FLAG, [action-if-found], [action-if-not-found])
-dnl Check for CFLAG and appends them to CFLAGS if supported
+dnl Check for CFLAG and appends them to AM_CFLAGS if supported
 AC_DEFUN([CC_CHECK_CFLAG_APPEND], [
   AC_CACHE_CHECK([if $CC supports $1 flag],
     AS_TR_SH([cc_cv_cflags_$1]),
@@ -71,7 +72,9 @@ AC_DEFUN([CC_CHECK_CFLAG_APPEND], [
   )
 
   AS_IF([eval test x$]AS_TR_SH([cc_cv_cflags_$1])[ = xyes],
-    [CFLAGS="$CFLAGS $1"; DEBUG_CFLAGS="$DEBUG_CFLAGS $1"; $2], [$3])
+    [AM_CFLAGS="$AM_CFLAGS $1"; DEBUG_CFLAGS="$DEBUG_CFLAGS $1"; $2], [$3])
+
+  AC_SUBST([AM_CFLAGS])
 ])
 
 dnl CC_CHECK_CFLAGS_APPEND([FLAG1 FLAG2], [action-if-found], [action-if-not])
@@ -101,6 +104,20 @@ AC_DEFUN([CC_CHECK_LDFLAGS], [
     [$2], [$3])
 ])
 
+dnl Check if flag is supported by both compiler and linker
+dnl If so, append it to AM_CFLAGS
+dnl CC_CHECK_FLAG_SUPPORTED_APPEND([FLAG])
+
+AC_DEFUN([CC_CHECK_FLAG_SUPPORTED_APPEND], [
+  CC_CHECK_CFLAGS([$1],
+    [CC_CHECK_LDFLAGS([$1],
+        [AM_CFLAGS="$AM_CFLAGS $1";
+         DEBUG_CFLAGS="$DEBUG_CFLAGS $1";
+         AC_SUBST([AM_CFLAGS])
+    ])
+  ])
+])
+
 dnl define the LDFLAGS_NOUNDEFINED variable with the correct value for
 dnl the current linker to avoid undefined references in a shared object.
 AC_DEFUN([CC_NOUNDEFINED], [

m4/libuv-check-versions.m4

@@ -0,0 +1,7 @@
+
+AC_PREREQ(2.71)
+AC_INIT([libuv-release-check], [0.0])
+AM_INIT_AUTOMAKE([1.16.5])
+LT_PREREQ(2.4.7)
+AC_OUTPUT
+

src/fs-poll.c

@@ -25,7 +25,7 @@
 #ifdef _WIN32
 #include "win/internal.h"
 #include "win/handle-inl.h"
-#define uv__make_close_pending(h) uv_want_endgame((h)->loop, (h))
+#define uv__make_close_pending(h) uv__want_endgame((h)->loop, (h))
 #else
 #include "unix/internal.h"
 #endif
@@ -139,6 +139,9 @@ int uv_fs_poll_getpath(uv_fs_poll_t* handle, char* buffer, size_t* size) {
   struct poll_ctx* ctx;
   size_t required_len;
 
+  if (buffer == NULL || size == NULL || *size == 0)
+    return UV_EINVAL;
+
   if (!uv_is_active((uv_handle_t*)handle)) {
     *size = 0;
     return UV_EINVAL;

src/idna.c

@@ -1,4 +1,4 @@
-/* Copyright (c) 2011, 2018 Ben Noordhuis <info@bnoordhuis.nl>
+/* Copyright libuv contributors. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -18,9 +18,55 @@
  */
 
 #include "uv.h"
+#include "uv-common.h"
 #include "idna.h"
 #include <assert.h>
 #include <string.h>
+#include <limits.h> /* UINT_MAX */
+
+
+static int32_t uv__wtf8_decode1(const char** input) {
+  uint32_t code_point;
+  uint8_t b1;
+  uint8_t b2;
+  uint8_t b3;
+  uint8_t b4;
+
+  b1 = **input;
+  if (b1 <= 0x7F)
+    return b1; /* ASCII code point */
+  if (b1 < 0xC2)
+    return -1; /* invalid: continuation byte */
+  code_point = b1;
+
+  b2 = *++*input;
+  if ((b2 & 0xC0) != 0x80)
+    return -1; /* invalid: not a continuation byte */
+  code_point = (code_point << 6) | (b2 & 0x3F);
+  if (b1 <= 0xDF)
+    return 0x7FF & code_point; /* two-byte character */
+
+  b3 = *++*input;
+  if ((b3 & 0xC0) != 0x80)
+    return -1; /* invalid: not a continuation byte */
+  code_point = (code_point << 6) | (b3 & 0x3F);
+  if (b1 <= 0xEF)
+    return 0xFFFF & code_point; /* three-byte character */
+
+  b4 = *++*input;
+  if ((b4 & 0xC0) != 0x80)
+    return -1; /* invalid: not a continuation byte */
+  code_point = (code_point << 6) | (b4 & 0x3F);
+  if (b1 <= 0xF4) {
+    code_point &= 0x1FFFFF;
+    if (code_point <= 0x10FFFF)
+      return code_point; /* four-byte character */
+  }
+
+  /* code point too large */
+  return -1;
+}
+
 
 static unsigned uv__utf8_decode1_slow(const char** p,
                                       const char* pe,
@@ -88,6 +134,7 @@ static unsigned uv__utf8_decode1_slow(const char** p,
   return a;
 }
 
+
 unsigned uv__utf8_decode1(const char** p, const char* pe) {
   unsigned a;
 
@@ -101,6 +148,7 @@ unsigned uv__utf8_decode1(const char** p, const char* pe) {
   return uv__utf8_decode1_slow(p, pe, a);
 }
 
+
 static int uv__idna_toascii_label(const char* s, const char* se,
                                   char** d, char* de) {
   static const char alphabet[] = "abcdefghijklmnopqrstuvwxyz0123456789";
@@ -129,7 +177,7 @@ static int uv__idna_toascii_label(const char* s, const char* se,
   while (s < se) {
     c = uv__utf8_decode1(&s, se);
 
-    if (c == -1u)
+    if (c == UINT_MAX)
       return UV_EINVAL;
 
     if (c < 128)
@@ -151,7 +199,7 @@ static int uv__idna_toascii_label(const char* s, const char* se,
   s = ss;
   while (s < se) {
     c = uv__utf8_decode1(&s, se);
-    assert(c != -1u);
+    assert(c != UINT_MAX);
 
     if (c > 127)
       continue;
@@ -182,7 +230,7 @@ static int uv__idna_toascii_label(const char* s, const char* se,
 
     while (s < se) {
       c = uv__utf8_decode1(&s, se);
-      assert(c != -1u);
+      assert(c != UINT_MAX);
 
       if (c >= n)
         if (c < m)
@@ -201,7 +249,7 @@ static int uv__idna_toascii_label(const char* s, const char* se,
     s = ss;
     while (s < se) {
       c = uv__utf8_decode1(&s, se);
-      assert(c != -1u);
+      assert(c != UINT_MAX);
 
       if (c < n)
         if (++delta == 0)
@@ -266,13 +314,17 @@ static int uv__idna_toascii_label(const char* s, const char* se,
   return 0;
 }
 
-long uv__idna_toascii(const char* s, const char* se, char* d, char* de) {
+
+ssize_t uv__idna_toascii(const char* s, const char* se, char* d, char* de) {
   const char* si;
   const char* st;
   unsigned c;
   char* ds;
   int rc;
 
+  if (s == se)
+    return UV_EINVAL;
+
   ds = d;
 
   si = s;
@@ -280,7 +332,7 @@ long uv__idna_toascii(const char* s, const char* se, char* d, char* de) {
     st = si;
     c = uv__utf8_decode1(&si, se);
 
-    if (c == -1u)
+    if (c == UINT_MAX)
       return UV_EINVAL;
 
     if (c != '.')
@@ -307,8 +359,202 @@ long uv__idna_toascii(const char* s, const char* se, char* d, char* de) {
       return rc;
   }
 
-  if (d < de)
-    *d++ = '\0';
+  if (d >= de)
+    return UV_EINVAL;
 
+  *d++ = '\0';
   return d - ds;  /* Number of bytes written. */
 }
+
+
+ssize_t uv_wtf8_length_as_utf16(const char* source_ptr) {
+  size_t w_target_len = 0;
+  int32_t code_point;
+
+  do {
+    code_point = uv__wtf8_decode1(&source_ptr);
+    if (code_point < 0)
+      return -1;
+    if (code_point > 0xFFFF)
+      w_target_len++;
+    w_target_len++;
+  } while (*source_ptr++);
+
+  return w_target_len;
+}
+
+
+void uv_wtf8_to_utf16(const char* source_ptr,
+                      uint16_t* w_target,
+                      size_t w_target_len) {
+  int32_t code_point;
+
+  do {
+    code_point = uv__wtf8_decode1(&source_ptr);
+    /* uv_wtf8_length_as_utf16 should have been called and checked first. */
+    assert(code_point >= 0);
+    if (code_point > 0xFFFF) {
+      assert(code_point < 0x10FFFF);
+      *w_target++ = (((code_point - 0x10000) >> 10) + 0xD800);
+      *w_target++ = ((code_point - 0x10000) & 0x3FF) + 0xDC00;
+      w_target_len -= 2;
+    } else {
+      *w_target++ = code_point;
+      w_target_len -= 1;
+    }
+  } while (*source_ptr++);
+
+  (void)w_target_len;
+  assert(w_target_len == 0);
+}
+
+
+static int32_t uv__get_surrogate_value(const uint16_t* w_source_ptr,
+                                       ssize_t w_source_len) {
+  uint16_t u;
+  uint16_t next;
+
+  u = w_source_ptr[0];
+  if (u >= 0xD800 && u <= 0xDBFF && w_source_len != 1) {
+    next = w_source_ptr[1];
+    if (next >= 0xDC00 && next <= 0xDFFF)
+      return 0x10000 + ((u - 0xD800) << 10) + (next - 0xDC00);
+  }
+  return u;
+}
+
+
+size_t uv_utf16_length_as_wtf8(const uint16_t* w_source_ptr,
+                               ssize_t w_source_len) {
+  size_t target_len;
+  int32_t code_point;
+
+  target_len = 0;
+  while (w_source_len) {
+    code_point = uv__get_surrogate_value(w_source_ptr, w_source_len);
+    /* Can be invalid UTF-8 but must be valid WTF-8. */
+    assert(code_point >= 0);
+    if (w_source_len < 0 && code_point == 0)
+      break;
+    if (code_point < 0x80)
+      target_len += 1;
+    else if (code_point < 0x800)
+      target_len += 2;
+    else if (code_point < 0x10000)
+      target_len += 3;
+    else {
+      target_len += 4;
+      w_source_ptr++;
+      if (w_source_len > 0)
+        w_source_len--;
+    }
+    w_source_ptr++;
+    if (w_source_len > 0)
+      w_source_len--;
+  }
+
+  return target_len;
+}
+
+
+int uv_utf16_to_wtf8(const uint16_t* w_source_ptr,
+                     ssize_t w_source_len,
+                     char** target_ptr,
+                     size_t* target_len_ptr) {
+  size_t target_len;
+  char* target;
+  char* target_end;
+  int32_t code_point;
+
+  /* If *target_ptr is provided, then *target_len_ptr must be its length
+   * (excluding space for NUL), otherwise we will compute the target_len_ptr
+   * length and may return a new allocation in *target_ptr if target_ptr is
+   * provided. */
+  if (target_ptr == NULL || *target_ptr == NULL) {
+    target_len = uv_utf16_length_as_wtf8(w_source_ptr, w_source_len);
+    if (target_len_ptr != NULL)
+      *target_len_ptr = target_len;
+  } else {
+    target_len = *target_len_ptr;
+  }
+
+  if (target_ptr == NULL)
+    return 0;
+
+  if (*target_ptr == NULL) {
+    target = uv__malloc(target_len + 1);
+    if (target == NULL) {
+      return UV_ENOMEM;
+    }
+    *target_ptr = target;
+  } else {
+    target = *target_ptr;
+  }
+
+  target_end = target + target_len;
+
+  while (target != target_end && w_source_len) {
+    code_point = uv__get_surrogate_value(w_source_ptr, w_source_len);
+    /* Can be invalid UTF-8 but must be valid WTF-8. */
+    assert(code_point >= 0);
+    if (w_source_len < 0 && code_point == 0) {
+      w_source_len = 0;
+      break;
+    }
+    if (code_point < 0x80) {
+      *target++ = code_point;
+    } else if (code_point < 0x800) {
+      *target++ = 0xC0 | (code_point >> 6);
+      if (target == target_end)
+        break;
+      *target++ = 0x80 | (code_point & 0x3F);
+    } else if (code_point < 0x10000) {
+      *target++ = 0xE0 | (code_point >> 12);
+      if (target == target_end)
+        break;
+      *target++ = 0x80 | ((code_point >> 6) & 0x3F);
+      if (target == target_end)
+        break;
+      *target++ = 0x80 | (code_point & 0x3F);
+    } else {
+      *target++ = 0xF0 | (code_point >> 18);
+      if (target == target_end)
+        break;
+      *target++ = 0x80 | ((code_point >> 12) & 0x3F);
+      if (target == target_end)
+        break;
+      *target++ = 0x80 | ((code_point >> 6) & 0x3F);
+      if (target == target_end)
+        break;
+      *target++ = 0x80 | (code_point & 0x3F);
+      /* uv__get_surrogate_value consumed 2 input characters */
+      w_source_ptr++;
+      if (w_source_len > 0)
+        w_source_len--;
+    }
+    target_len = target - *target_ptr;
+    w_source_ptr++;
+    if (w_source_len > 0)
+      w_source_len--;
+  }
+
+  if (target != target_end && target_len_ptr != NULL)
+    /* Did not fill all of the provided buffer, so update the target_len_ptr
+     * output with the space used. */
+    *target_len_ptr = target - *target_ptr;
+
+  /* Check if input fit into target exactly. */
+  if (w_source_len < 0 && target == target_end && w_source_ptr[0] == 0)
+    w_source_len = 0;
+
+  *target++ = '\0';
+
+  /* Characters remained after filling the buffer, compute the remaining length now. */
+  if (w_source_len) {
+    if (target_len_ptr != NULL)
+      *target_len_ptr = target_len + uv_utf16_length_as_wtf8(w_source_ptr, w_source_len);
+    return UV_ENOBUFS;
+  }
+
+  return 0;
+}

src/idna.h

@@ -1,4 +1,4 @@
-/* Copyright (c) 2011, 2018 Ben Noordhuis <info@bnoordhuis.nl>
+/* Copyright libuv contributors. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -26,6 +26,6 @@ unsigned uv__utf8_decode1(const char** p, const char* pe);
  * is the number of bytes written to |d|, including the trailing nul byte.
  * A return value < 0 is a libuv error code. |s| and |d| can not overlap.
  */
-long uv__idna_toascii(const char* s, const char* se, char* d, char* de);
+ssize_t uv__idna_toascii(const char* s, const char* se, char* d, char* de);
 
 #endif  /* UV_SRC_IDNA_H_ */

src/inet.c

@@ -17,12 +17,7 @@
 
 #include <stdio.h>
 #include <string.h>
-
-#if defined(_MSC_VER) && _MSC_VER < 1600
-# include "uv/stdint-msvc2008.h"
-#else
 #include <stdint.h>
-#endif
 
 #include "uv.h"
 #include "uv-common.h"
@@ -135,7 +130,7 @@ static int inet_ntop6(const unsigned char *src, char *dst, size_t size) {
       tp += strlen(tp);
       break;
     }
-    tp += sprintf(tp, "%x", words[i]);
+    tp += snprintf(tp, sizeof tmp - (tp - tmp), "%x", words[i]);
   }
   /* Was it a trailing run of 0x00's? */
   if (best.base != -1 && (best.base + best.len) == ARRAY_SIZE(words))

src/queue.h

@@ -18,91 +18,73 @@
 
 #include <stddef.h>
 
-typedef void *QUEUE[2];
+#define uv__queue_data(pointer, type, field)                                  \
+  ((type*) ((char*) (pointer) - offsetof(type, field)))
 
-/* Private macros. */
-#define QUEUE_NEXT(q)       (*(QUEUE **) &((*(q))[0]))
-#define QUEUE_PREV(q)       (*(QUEUE **) &((*(q))[1]))
-#define QUEUE_PREV_NEXT(q)  (QUEUE_NEXT(QUEUE_PREV(q)))
-#define QUEUE_NEXT_PREV(q)  (QUEUE_PREV(QUEUE_NEXT(q)))
+#define uv__queue_foreach(q, h)                                               \
+  for ((q) = (h)->next; (q) != (h); (q) = (q)->next)
 
-/* Public macros. */
-#define QUEUE_DATA(ptr, type, field)                                          \
-  ((type *) ((char *) (ptr) - offsetof(type, field)))
+static inline void uv__queue_init(struct uv__queue* q) {
+  q->next = q;
+  q->prev = q;
+}
 
-/* Important note: mutating the list while QUEUE_FOREACH is
- * iterating over its elements results in undefined behavior.
- */
-#define QUEUE_FOREACH(q, h)                                                   \
-  for ((q) = QUEUE_NEXT(h); (q) != (h); (q) = QUEUE_NEXT(q))
+static inline int uv__queue_empty(const struct uv__queue* q) {
+  return q == q->next;
+}
 
-#define QUEUE_EMPTY(q)                                                        \
-  ((const QUEUE *) (q) == (const QUEUE *) QUEUE_NEXT(q))
+static inline struct uv__queue* uv__queue_head(const struct uv__queue* q) {
+  return q->next;
+}
 
-#define QUEUE_HEAD(q)                                                         \
-  (QUEUE_NEXT(q))
+static inline struct uv__queue* uv__queue_next(const struct uv__queue* q) {
+  return q->next;
+}
 
-#define QUEUE_INIT(q)                                                         \
-  do {                                                                        \
-    QUEUE_NEXT(q) = (q);                                                      \
-    QUEUE_PREV(q) = (q);                                                      \
-  }                                                                           \
-  while (0)
+static inline void uv__queue_add(struct uv__queue* h, struct uv__queue* n) {
+  h->prev->next = n->next;
+  n->next->prev = h->prev;
+  h->prev = n->prev;
+  h->prev->next = h;
+}
 
-#define QUEUE_ADD(h, n)                                                       \
-  do {                                                                        \
-    QUEUE_PREV_NEXT(h) = QUEUE_NEXT(n);                                       \
-    QUEUE_NEXT_PREV(n) = QUEUE_PREV(h);                                       \
-    QUEUE_PREV(h) = QUEUE_PREV(n);                                            \
-    QUEUE_PREV_NEXT(h) = (h);                                                 \
-  }                                                                           \
-  while (0)
+static inline void uv__queue_split(struct uv__queue* h,
+                                   struct uv__queue* q,
+                                   struct uv__queue* n) {
+  n->prev = h->prev;
+  n->prev->next = n;
+  n->next = q;
+  h->prev = q->prev;
+  h->prev->next = h;
+  q->prev = n;
+}
 
-#define QUEUE_SPLIT(h, q, n)                                                  \
-  do {                                                                        \
-    QUEUE_PREV(n) = QUEUE_PREV(h);                                            \
-    QUEUE_PREV_NEXT(n) = (n);                                                 \
-    QUEUE_NEXT(n) = (q);                                                      \
-    QUEUE_PREV(h) = QUEUE_PREV(q);                                            \
-    QUEUE_PREV_NEXT(h) = (h);                                                 \
-    QUEUE_PREV(q) = (n);                                                      \
-  }                                                                           \
-  while (0)
+static inline void uv__queue_move(struct uv__queue* h, struct uv__queue* n) {
+  if (uv__queue_empty(h))
+    uv__queue_init(n);
+  else
+    uv__queue_split(h, h->next, n);
+}
 
-#define QUEUE_MOVE(h, n)                                                      \
-  do {                                                                        \
-    if (QUEUE_EMPTY(h))                                                       \
-      QUEUE_INIT(n);                                                          \
-    else {                                                                    \
-      QUEUE* q = QUEUE_HEAD(h);                                               \
-      QUEUE_SPLIT(h, q, n);                                                   \
-    }                                                                         \
-  }                                                                           \
-  while (0)
+static inline void uv__queue_insert_head(struct uv__queue* h,
+                                         struct uv__queue* q) {
+  q->next = h->next;
+  q->prev = h;
+  q->next->prev = q;
+  h->next = q;
+}
 
-#define QUEUE_INSERT_HEAD(h, q)                                               \
-  do {                                                                        \
-    QUEUE_NEXT(q) = QUEUE_NEXT(h);                                            \
-    QUEUE_PREV(q) = (h);                                                      \
-    QUEUE_NEXT_PREV(q) = (q);                                                 \
-    QUEUE_NEXT(h) = (q);                                                      \
-  }                                                                           \
-  while (0)
+static inline void uv__queue_insert_tail(struct uv__queue* h,
+                                         struct uv__queue* q) {
+  q->next = h;
+  q->prev = h->prev;
+  q->prev->next = q;
+  h->prev = q;
+}
 
-#define QUEUE_INSERT_TAIL(h, q)                                               \
-  do {                                                                        \
-    QUEUE_NEXT(q) = (h);                                                      \
-    QUEUE_PREV(q) = QUEUE_PREV(h);                                            \
-    QUEUE_PREV_NEXT(q) = (q);                                                 \
-    QUEUE_PREV(h) = (q);                                                      \
-  }                                                                           \
-  while (0)
-
-#define QUEUE_REMOVE(q)                                                       \
-  do {                                                                        \
-    QUEUE_PREV_NEXT(q) = QUEUE_NEXT(q);                                       \
-    QUEUE_NEXT_PREV(q) = QUEUE_PREV(q);                                       \
-  }                                                                           \
-  while (0)
+static inline void uv__queue_remove(struct uv__queue* q) {
+  q->prev->next = q->next;
+  q->next->prev = q->prev;
+}
 
 #endif /* QUEUE_H_ */

src/random.c

@@ -82,7 +82,7 @@ static void uv__random_done(struct uv__work* w, int status) {
   uv_random_t* req;
 
   req = container_of(w, uv_random_t, work_req);
-  uv__req_unregister(req->loop, req);
+  uv__req_unregister(req->loop);
 
   if (status == 0)
     status = req->status;

src/strscpy.h

@@ -28,7 +28,7 @@
  */
 #include "uv.h"
 
-/* Copies up to |n-1| bytes from |d| to |s| and always zero-terminates
+/* Copies up to |n-1| bytes from |s| to |d| and always zero-terminates
  * the result, except when |n==0|. Returns the number of bytes copied
  * or UV_E2BIG if |d| is too small.
  *

src/strtok.c

@@ -0,0 +1,52 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include "strtok.h"
+
+char* uv__strtok(char* str, const char* sep, char** itr) {
+  const char* sep_itr;
+  char* tmp;
+  char* start;
+
+  if (str == NULL)
+    start = tmp = *itr;
+  else
+    start = tmp = str;
+
+  if (tmp == NULL)
+    return NULL;
+
+  while (*tmp != '\0') {
+    sep_itr = sep;
+    while (*sep_itr != '\0') {
+      if (*tmp == *sep_itr) {
+        *itr = tmp + 1;
+        *tmp = '\0';
+        return start;
+      }
+      sep_itr++;
+    }
+    tmp++;
+  }
+  *itr = NULL;
+  return start;
+}

src/strtok.h

@@ -0,0 +1,27 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef UV_STRTOK_H_
+#define UV_STRTOK_H_
+
+char* uv__strtok(char* str, const char* sep, char** itr);
+
+#endif  /* UV_STRTOK_H_ */

src/thread-common.c

@@ -0,0 +1,175 @@
+/* Copyright libuv project contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "uv-common.h"
+
+#include <stdlib.h>
+#ifndef _WIN32
+#include <pthread.h>
+#endif
+
+#if defined(PTHREAD_BARRIER_SERIAL_THREAD)
+STATIC_ASSERT(sizeof(uv_barrier_t) == sizeof(pthread_barrier_t));
+#endif
+
+/* Note: guard clauses should match uv_barrier_t's in include/uv/unix.h. */
+#if defined(_AIX) || \
+    defined(__OpenBSD__) || \
+    !defined(PTHREAD_BARRIER_SERIAL_THREAD)
+int uv_barrier_init(uv_barrier_t* barrier, unsigned int count) {
+  int rc;
+#ifdef _WIN32
+  uv_barrier_t* b;
+  b = barrier;
+
+  if (barrier == NULL || count == 0)
+    return UV_EINVAL;
+#else
+  struct _uv_barrier* b;
+
+  if (barrier == NULL || count == 0)
+    return UV_EINVAL;
+
+  b = uv__malloc(sizeof(*b));
+  if (b == NULL)
+    return UV_ENOMEM;
+#endif
+
+  b->in = 0;
+  b->out = 0;
+  b->threshold = count;
+
+  rc = uv_mutex_init(&b->mutex);
+  if (rc != 0)
+    goto error2;
+
+  /* TODO(vjnash): remove these uv_cond_t casts in v2. */
+  rc = uv_cond_init((uv_cond_t*) &b->cond);
+  if (rc != 0)
+    goto error;
+
+#ifndef _WIN32
+  barrier->b = b;
+#endif
+  return 0;
+
+error:
+  uv_mutex_destroy(&b->mutex);
+error2:
+#ifndef _WIN32
+  uv__free(b);
+#endif
+  return rc;
+}
+
+
+int uv_barrier_wait(uv_barrier_t* barrier) {
+  int last;
+#ifdef _WIN32
+  uv_barrier_t* b;
+  b = barrier;
+#else
+  struct _uv_barrier* b;
+
+  if (barrier == NULL || barrier->b == NULL)
+    return UV_EINVAL;
+
+  b = barrier->b;
+#endif
+
+  uv_mutex_lock(&b->mutex);
+
+  while (b->out != 0)
+    uv_cond_wait((uv_cond_t*) &b->cond, &b->mutex);
+
+  if (++b->in == b->threshold) {
+    b->in = 0;
+    b->out = b->threshold;
+    uv_cond_broadcast((uv_cond_t*) &b->cond);
+  } else {
+    do
+      uv_cond_wait((uv_cond_t*) &b->cond, &b->mutex);
+    while (b->in != 0);
+  }
+
+  last = (--b->out == 0);
+  if (last)
+    uv_cond_broadcast((uv_cond_t*) &b->cond);
+
+  uv_mutex_unlock(&b->mutex);
+  return last;
+}
+
+
+void uv_barrier_destroy(uv_barrier_t* barrier) {
+#ifdef _WIN32
+  uv_barrier_t* b;
+  b = barrier;
+#else
+  struct _uv_barrier* b;
+  b = barrier->b;
+#endif
+
+  uv_mutex_lock(&b->mutex);
+
+  assert(b->in == 0);
+  while (b->out != 0)
+    uv_cond_wait((uv_cond_t*) &b->cond, &b->mutex);
+
+  if (b->in != 0)
+    abort();
+
+  uv_mutex_unlock(&b->mutex);
+  uv_mutex_destroy(&b->mutex);
+  uv_cond_destroy((uv_cond_t*) &b->cond);
+
+#ifndef  _WIN32
+  uv__free(barrier->b);
+  barrier->b = NULL;
+#endif
+}
+
+#else
+
+int uv_barrier_init(uv_barrier_t* barrier, unsigned int count) {
+  return UV__ERR(pthread_barrier_init(barrier, NULL, count));
+}
+
+
+int uv_barrier_wait(uv_barrier_t* barrier) {
+  int rc;
+
+  rc = pthread_barrier_wait(barrier);
+  if (rc != 0)
+    if (rc != PTHREAD_BARRIER_SERIAL_THREAD)
+      abort();
+
+  return rc == PTHREAD_BARRIER_SERIAL_THREAD;
+}
+
+
+void uv_barrier_destroy(uv_barrier_t* barrier) {
+  if (pthread_barrier_destroy(barrier))
+    abort();
+}
+
+#endif

src/threadpool.c

@@ -37,10 +37,10 @@ static unsigned int slow_io_work_running;
 static unsigned int nthreads;
 static uv_thread_t* threads;
 static uv_thread_t default_threads[4];
-static QUEUE exit_message;
-static QUEUE wq;
-static QUEUE run_slow_work_message;
-static QUEUE slow_io_pending_wq;
+static struct uv__queue exit_message;
+static struct uv__queue wq;
+static struct uv__queue run_slow_work_message;
+static struct uv__queue slow_io_pending_wq;
 
 static unsigned int slow_work_thread_threshold(void) {
   return (nthreads + 1) / 2;
@@ -56,9 +56,10 @@ static void uv__cancelled(struct uv__work* w) {
  */
 static void worker(void* arg) {
   struct uv__work* w;
-  QUEUE* q;
+  struct uv__queue* q;
   int is_slow_work;
 
+  uv_thread_setname("libuv-worker");
   uv_sem_post((uv_sem_t*) arg);
   arg = NULL;
 
@@ -68,49 +69,49 @@ static void worker(void* arg) {
 
     /* Keep waiting while either no work is present or only slow I/O
        and we're at the threshold for that. */
-    while (QUEUE_EMPTY(&wq) ||
-           (QUEUE_HEAD(&wq) == &run_slow_work_message &&
-            QUEUE_NEXT(&run_slow_work_message) == &wq &&
+    while (uv__queue_empty(&wq) ||
+           (uv__queue_head(&wq) == &run_slow_work_message &&
+            uv__queue_next(&run_slow_work_message) == &wq &&
             slow_io_work_running >= slow_work_thread_threshold())) {
       idle_threads += 1;
       uv_cond_wait(&cond, &mutex);
       idle_threads -= 1;
     }
 
-    q = QUEUE_HEAD(&wq);
+    q = uv__queue_head(&wq);
     if (q == &exit_message) {
       uv_cond_signal(&cond);
       uv_mutex_unlock(&mutex);
       break;
     }
 
-    QUEUE_REMOVE(q);
-    QUEUE_INIT(q);  /* Signal uv_cancel() that the work req is executing. */
+    uv__queue_remove(q);
+    uv__queue_init(q);  /* Signal uv_cancel() that the work req is executing. */
 
     is_slow_work = 0;
     if (q == &run_slow_work_message) {
       /* If we're at the slow I/O threshold, re-schedule until after all
          other work in the queue is done. */
       if (slow_io_work_running >= slow_work_thread_threshold()) {
-        QUEUE_INSERT_TAIL(&wq, q);
+        uv__queue_insert_tail(&wq, q);
         continue;
       }
 
       /* If we encountered a request to run slow I/O work but there is none
          to run, that means it's cancelled => Start over. */
-      if (QUEUE_EMPTY(&slow_io_pending_wq))
+      if (uv__queue_empty(&slow_io_pending_wq))
         continue;
 
       is_slow_work = 1;
       slow_io_work_running++;
 
-      q = QUEUE_HEAD(&slow_io_pending_wq);
-      QUEUE_REMOVE(q);
-      QUEUE_INIT(q);
+      q = uv__queue_head(&slow_io_pending_wq);
+      uv__queue_remove(q);
+      uv__queue_init(q);
 
       /* If there is more slow I/O work, schedule it to be run as well. */
-      if (!QUEUE_EMPTY(&slow_io_pending_wq)) {
-        QUEUE_INSERT_TAIL(&wq, &run_slow_work_message);
+      if (!uv__queue_empty(&slow_io_pending_wq)) {
+        uv__queue_insert_tail(&wq, &run_slow_work_message);
         if (idle_threads > 0)
           uv_cond_signal(&cond);
       }
@@ -118,13 +119,13 @@ static void worker(void* arg) {
 
     uv_mutex_unlock(&mutex);
 
-    w = QUEUE_DATA(q, struct uv__work, wq);
+    w = uv__queue_data(q, struct uv__work, wq);
     w->work(w);
 
     uv_mutex_lock(&w->loop->wq_mutex);
     w->work = NULL;  /* Signal uv_cancel() that the work req is done
                         executing. */
-    QUEUE_INSERT_TAIL(&w->loop->wq, &w->wq);
+    uv__queue_insert_tail(&w->loop->wq, &w->wq);
     uv_async_send(&w->loop->wq_async);
     uv_mutex_unlock(&w->loop->wq_mutex);
 
@@ -139,12 +140,12 @@ static void worker(void* arg) {
 }
 
 
-static void post(QUEUE* q, enum uv__work_kind kind) {
+static void post(struct uv__queue* q, enum uv__work_kind kind) {
   uv_mutex_lock(&mutex);
   if (kind == UV__WORK_SLOW_IO) {
     /* Insert into a separate queue. */
-    QUEUE_INSERT_TAIL(&slow_io_pending_wq, q);
-    if (!QUEUE_EMPTY(&run_slow_work_message)) {
+    uv__queue_insert_tail(&slow_io_pending_wq, q);
+    if (!uv__queue_empty(&run_slow_work_message)) {
       /* Running slow I/O tasks is already scheduled => Nothing to do here.
          The worker that runs said other task will schedule this one as well. */
       uv_mutex_unlock(&mutex);
@@ -153,7 +154,7 @@ static void post(QUEUE* q, enum uv__work_kind kind) {
     q = &run_slow_work_message;
   }
 
-  QUEUE_INSERT_TAIL(&wq, q);
+  uv__queue_insert_tail(&wq, q);
   if (idle_threads > 0)
     uv_cond_signal(&cond);
   uv_mutex_unlock(&mutex);
@@ -191,6 +192,7 @@ void uv__threadpool_cleanup(void) {
 
 
 static void init_threads(void) {
+  uv_thread_options_t config;
   unsigned int i;
   const char* val;
   uv_sem_t sem;
@@ -219,15 +221,18 @@ static void init_threads(void) {
   if (uv_mutex_init(&mutex))
     abort();
 
-  QUEUE_INIT(&wq);
-  QUEUE_INIT(&slow_io_pending_wq);
-  QUEUE_INIT(&run_slow_work_message);
+  uv__queue_init(&wq);
+  uv__queue_init(&slow_io_pending_wq);
+  uv__queue_init(&run_slow_work_message);
 
   if (uv_sem_init(&sem, 0))
     abort();
 
+  config.flags = UV_THREAD_HAS_STACK_SIZE;
+  config.stack_size = 8u << 20;  /* 8 MB */
+
   for (i = 0; i < nthreads; i++)
-    if (uv_thread_create(threads + i, worker, &sem))
+    if (uv_thread_create_ex(threads + i, &config, worker, &sem))
       abort();
 
   for (i = 0; i < nthreads; i++)
@@ -271,15 +276,19 @@ void uv__work_submit(uv_loop_t* loop,
 }
 
 
+/* TODO(bnoordhuis) teach libuv how to cancel file operations
+ * that go through io_uring instead of the thread pool.
+ */
 static int uv__work_cancel(uv_loop_t* loop, uv_req_t* req, struct uv__work* w) {
   int cancelled;
 
+  uv_once(&once, init_once);  /* Ensure |mutex| is initialized. */
   uv_mutex_lock(&mutex);
   uv_mutex_lock(&w->loop->wq_mutex);
 
-  cancelled = !QUEUE_EMPTY(&w->wq) && w->work != NULL;
+  cancelled = !uv__queue_empty(&w->wq) && w->work != NULL;
   if (cancelled)
-    QUEUE_REMOVE(&w->wq);
+    uv__queue_remove(&w->wq);
 
   uv_mutex_unlock(&w->loop->wq_mutex);
   uv_mutex_unlock(&mutex);
@@ -289,7 +298,7 @@ static int uv__work_cancel(uv_loop_t* loop, uv_req_t* req, struct uv__work* w) {
 
   w->work = uv__cancelled;
   uv_mutex_lock(&loop->wq_mutex);
-  QUEUE_INSERT_TAIL(&loop->wq, &w->wq);
+  uv__queue_insert_tail(&loop->wq, &w->wq);
   uv_async_send(&loop->wq_async);
   uv_mutex_unlock(&loop->wq_mutex);
 
@@ -300,22 +309,39 @@ static int uv__work_cancel(uv_loop_t* loop, uv_req_t* req, struct uv__work* w) {
 void uv__work_done(uv_async_t* handle) {
   struct uv__work* w;
   uv_loop_t* loop;
-  QUEUE* q;
-  QUEUE wq;
+  struct uv__queue* q;
+  struct uv__queue wq;
   int err;
+  int nevents;
 
   loop = container_of(handle, uv_loop_t, wq_async);
   uv_mutex_lock(&loop->wq_mutex);
-  QUEUE_MOVE(&loop->wq, &wq);
+  uv__queue_move(&loop->wq, &wq);
   uv_mutex_unlock(&loop->wq_mutex);
 
-  while (!QUEUE_EMPTY(&wq)) {
-    q = QUEUE_HEAD(&wq);
-    QUEUE_REMOVE(q);
+  nevents = 0;
+
+  while (!uv__queue_empty(&wq)) {
+    q = uv__queue_head(&wq);
+    uv__queue_remove(q);
 
     w = container_of(q, struct uv__work, wq);
     err = (w->work == uv__cancelled) ? UV_ECANCELED : 0;
     w->done(w, err);
+    nevents++;
+  }
+
+  /* This check accomplishes 2 things:
+   * 1. Even if the queue was empty, the call to uv__work_done() should count
+   *    as an event. Which will have been added by the event loop when
+   *    calling this callback.
+   * 2. Prevents accidental wrap around in case nevents == 0 events == 0.
+   */
+  if (nevents > 1) {
+    /* Subtract 1 to counter the call to uv__work_done(). */
+    uv__metrics_inc_events(loop, nevents - 1);
+    if (uv__get_internal_fields(loop)->current_timeout == 0)
+      uv__metrics_inc_events_waiting(loop, nevents - 1);
   }
 }
 
@@ -331,7 +357,7 @@ static void uv__queue_done(struct uv__work* w, int err) {
   uv_work_t* req;
 
   req = container_of(w, uv_work_t, work_req);
-  uv__req_unregister(req->loop, req);
+  uv__req_unregister(req->loop);
 
   if (req->after_work_cb == NULL)
     return;

src/timer.c

@@ -40,8 +40,8 @@ static int timer_less_than(const struct heap_node* ha,
   const uv_timer_t* a;
   const uv_timer_t* b;
 
-  a = container_of(ha, uv_timer_t, heap_node);
-  b = container_of(hb, uv_timer_t, heap_node);
+  a = container_of(ha, uv_timer_t, node.heap);
+  b = container_of(hb, uv_timer_t, node.heap);
 
   if (a->timeout < b->timeout)
     return 1;
@@ -60,6 +60,7 @@ int uv_timer_init(uv_loop_t* loop, uv_timer_t* handle) {
   handle->timer_cb = NULL;
   handle->timeout = 0;
   handle->repeat = 0;
+  uv__queue_init(&handle->node.queue);
   return 0;
 }
 
@@ -73,7 +74,6 @@ int uv_timer_start(uv_timer_t* handle,
   if (uv__is_closing(handle) || cb == NULL)
     return UV_EINVAL;
 
-  if (uv__is_active(handle))
   uv_timer_stop(handle);
 
   clamped_timeout = handle->loop->time + timeout;
@@ -87,7 +87,7 @@ int uv_timer_start(uv_timer_t* handle,
   handle->start_id = handle->loop->timer_counter++;
 
   heap_insert(timer_heap(handle->loop),
-              (struct heap_node*) &handle->heap_node,
+              (struct heap_node*) &handle->node.heap,
               timer_less_than);
   uv__handle_start(handle);
 
@@ -96,14 +96,16 @@ int uv_timer_start(uv_timer_t* handle,
 
 
 int uv_timer_stop(uv_timer_t* handle) {
-  if (!uv__is_active(handle))
-    return 0;
-
+  if (uv__is_active(handle)) {
     heap_remove(timer_heap(handle->loop),
-              (struct heap_node*) &handle->heap_node,
+                (struct heap_node*) &handle->node.heap,
                 timer_less_than);
     uv__handle_stop(handle);
+  } else {
+    uv__queue_remove(&handle->node.queue);
+  }
 
+  uv__queue_init(&handle->node.queue);
   return 0;
 }
 
@@ -148,7 +150,7 @@ int uv__next_timeout(const uv_loop_t* loop) {
   if (heap_node == NULL)
     return -1; /* block indefinitely */
 
-  handle = container_of(heap_node, uv_timer_t, heap_node);
+  handle = container_of(heap_node, uv_timer_t, node.heap);
   if (handle->timeout <= loop->time)
     return 0;
 
@@ -163,17 +165,30 @@ int uv__next_timeout(const uv_loop_t* loop) {
 void uv__run_timers(uv_loop_t* loop) {
   struct heap_node* heap_node;
   uv_timer_t* handle;
+  struct uv__queue* queue_node;
+  struct uv__queue ready_queue;
+
+  uv__queue_init(&ready_queue);
 
   for (;;) {
     heap_node = heap_min(timer_heap(loop));
     if (heap_node == NULL)
       break;
 
-    handle = container_of(heap_node, uv_timer_t, heap_node);
+    handle = container_of(heap_node, uv_timer_t, node.heap);
     if (handle->timeout > loop->time)
       break;
 
     uv_timer_stop(handle);
+    uv__queue_insert_tail(&ready_queue, &handle->node.queue);
+  }
+
+  while (!uv__queue_empty(&ready_queue)) {
+    queue_node = uv__queue_head(&ready_queue);
+    uv__queue_remove(queue_node);
+    uv__queue_init(queue_node);
+    handle = container_of(queue_node, uv_timer_t, node.queue);
+
     uv_timer_again(handle);
     handle->timer_cb(handle);
   }

src/unix/aix.c

@@ -131,11 +131,12 @@ int uv__io_check_fd(uv_loop_t* loop, int fd) {
 
 
 void uv__io_poll(uv_loop_t* loop, int timeout) {
+  uv__loop_internal_fields_t* lfields;
   struct pollfd events[1024];
   struct pollfd pqry;
   struct pollfd* pe;
   struct poll_ctl pc;
-  QUEUE* q;
+  struct uv__queue* q;
   uv__io_t* w;
   uint64_t base;
   uint64_t diff;
@@ -150,16 +151,18 @@ void uv__io_poll(uv_loop_t* loop, int timeout) {
   int reset_timeout;
 
   if (loop->nfds == 0) {
-    assert(QUEUE_EMPTY(&loop->watcher_queue));
+    assert(uv__queue_empty(&loop->watcher_queue));
     return;
   }
 
-  while (!QUEUE_EMPTY(&loop->watcher_queue)) {
-    q = QUEUE_HEAD(&loop->watcher_queue);
-    QUEUE_REMOVE(q);
-    QUEUE_INIT(q);
+  lfields = uv__get_internal_fields(loop);
 
-    w = QUEUE_DATA(q, uv__io_t, watcher_queue);
+  while (!uv__queue_empty(&loop->watcher_queue)) {
+    q = uv__queue_head(&loop->watcher_queue);
+    uv__queue_remove(q);
+    uv__queue_init(q);
+
+    w = uv__queue_data(q, uv__io_t, watcher_queue);
     assert(w->pevents != 0);
     assert(w->fd >= 0);
     assert(w->fd < (int) loop->nwatchers);
@@ -217,7 +220,7 @@ void uv__io_poll(uv_loop_t* loop, int timeout) {
   base = loop->time;
   count = 48; /* Benchmarks suggest this gives the best throughput. */
 
-  if (uv__get_internal_fields(loop)->flags & UV_METRICS_IDLE_TIME) {
+  if (lfields->flags & UV_METRICS_IDLE_TIME) {
     reset_timeout = 1;
     user_timeout = timeout;
     timeout = 0;
@@ -232,6 +235,12 @@ void uv__io_poll(uv_loop_t* loop, int timeout) {
     if (timeout != 0)
       uv__metrics_set_provider_entry_time(loop);
 
+    /* Store the current timeout in a location that's globally accessible so
+     * other locations like uv__work_done() can determine whether the queue
+     * of events in the callback were waiting when poll was called.
+     */
+    lfields->current_timeout = timeout;
+
     nfds = pollset_poll(loop->backend_fd,
                         events,
                         ARRAY_SIZE(events),
@@ -321,9 +330,11 @@ void uv__io_poll(uv_loop_t* loop, int timeout) {
       nevents++;
     }
 
+    uv__metrics_inc_events(loop, nevents);
     if (reset_timeout != 0) {
       timeout = user_timeout;
       reset_timeout = 0;
+      uv__metrics_inc_events_waiting(loop, nevents);
     }
 
     if (have_signals != 0) {
@@ -389,6 +400,11 @@ uint64_t uv_get_constrained_memory(void) {
 }
 
 
+uint64_t uv_get_available_memory(void) {
+  return uv_get_free_memory();
+}
+
+
 void uv_loadavg(double avg[3]) {
   perfstat_cpu_total_t ps_total;
   int result = perfstat_cpu_total(NULL, &ps_total, sizeof(ps_total), 1);
@@ -425,7 +441,7 @@ static char* uv__rawname(const char* cp, char (*dst)[FILENAME_MAX+1]) {
 static int uv__path_is_a_directory(char* filename) {
   struct stat statbuf;
 
-  if (stat(filename, &statbuf) < 0)
+  if (uv__stat(filename, &statbuf) < 0)
     return -1;  /* failed: not a directory, assume it is a file */
 
   if (statbuf.st_type == VDIR)
@@ -1104,6 +1120,8 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
   struct ifreq *ifr, *p, flg;
   struct in6_ifreq if6;
   struct sockaddr_dl* sa_addr;
+  size_t namelen;
+  char* name;
 
   ifc.ifc_req = NULL;
   sock6fd = -1;
@@ -1140,6 +1158,7 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
 #define ADDR_SIZE(p) MAX((p).sa_len, sizeof(p))
 
   /* Count all up and running ipv4/ipv6 addresses */
+  namelen = 0;
   ifr = ifc.ifc_req;
   while ((char*)ifr < (char*)ifc.ifc_req + ifc.ifc_len) {
     p = ifr;
@@ -1159,6 +1178,7 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
     if (!(flg.ifr_flags & IFF_UP && flg.ifr_flags & IFF_RUNNING))
       continue;
 
+    namelen += strlen(ent->ifa_name) + 1;
     (*count)++;
   }
 
@@ -1166,8 +1186,8 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
     goto cleanup;
 
   /* Alloc the return interface structs */
-  *addresses = uv__calloc(*count, sizeof(**addresses));
-  if (!(*addresses)) {
+  *addresses = uv__calloc(1, *count * sizeof(**addresses) + namelen);
+  if (*addresses == NULL) {
     r = UV_ENOMEM;
     goto cleanup;
   }
@@ -1194,7 +1214,9 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
 
     /* All conditions above must match count loop */
 
-    address->name = uv__strdup(p->ifr_name);
+    namelen = strlen(p->ifr_name) + 1;
+    address->name = memcpy(name, p->ifr_name, namelen);
+    name += namelen;
 
     if (inet6)
       address->address.address6 = *((struct sockaddr_in6*) &p->ifr_addr);
@@ -1267,12 +1289,6 @@ cleanup:
 
 void uv_free_interface_addresses(uv_interface_address_t* addresses,
                                  int count) {
-  int i;
-
-  for (i = 0; i < count; ++i) {
-    uv__free(addresses[i].name);
-  }
-
   uv__free(addresses);
 }
 

src/unix/android-ifaddrs.c

@@ -1,713 +0,0 @@
-/*
-Copyright (c) 2013, Kenneth MacKay
-Copyright (c) 2014, Emergya (Cloud4all, FP7/2007-2013 grant agreement #289016)
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
- * Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include "uv/android-ifaddrs.h"
-#include "uv-common.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/socket.h>
-#include <net/if_arp.h>
-#include <netinet/in.h>
-#include <linux/netlink.h>
-#include <linux/rtnetlink.h>
-#include <linux/if_packet.h>
-
-typedef struct NetlinkList
-{
-    struct NetlinkList *m_next;
-    struct nlmsghdr *m_data;
-    unsigned int m_size;
-} NetlinkList;
-
-static int netlink_socket(pid_t *p_pid)
-{
-    struct sockaddr_nl l_addr;
-    socklen_t l_len;
-
-    int l_socket = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
-    if(l_socket < 0)
-    {
-        return -1;
-    }
-
-    memset(&l_addr, 0, sizeof(l_addr));
-    l_addr.nl_family = AF_NETLINK;
-    if(bind(l_socket, (struct sockaddr *)&l_addr, sizeof(l_addr)) < 0)
-    {
-        close(l_socket);
-        return -1;
-    }
-
-    l_len = sizeof(l_addr);
-    if(getsockname(l_socket, (struct sockaddr *)&l_addr, &l_len) < 0)
-    {
-        close(l_socket);
-        return -1;
-    }
-    *p_pid = l_addr.nl_pid;
-
-    return l_socket;
-}
-
-static int netlink_send(int p_socket, int p_request)
-{
-    char l_buffer[NLMSG_ALIGN(sizeof(struct nlmsghdr)) + NLMSG_ALIGN(sizeof(struct rtgenmsg))];
-
-    struct nlmsghdr *l_hdr;
-    struct rtgenmsg *l_msg;
-    struct sockaddr_nl l_addr;
-
-    memset(l_buffer, 0, sizeof(l_buffer));
-
-    l_hdr = (struct nlmsghdr *)l_buffer;
-    l_msg = (struct rtgenmsg *)NLMSG_DATA(l_hdr);
-
-    l_hdr->nlmsg_len = NLMSG_LENGTH(sizeof(*l_msg));
-    l_hdr->nlmsg_type = p_request;
-    l_hdr->nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST;
-    l_hdr->nlmsg_pid = 0;
-    l_hdr->nlmsg_seq = p_socket;
-    l_msg->rtgen_family = AF_UNSPEC;
-
-    memset(&l_addr, 0, sizeof(l_addr));
-    l_addr.nl_family = AF_NETLINK;
-    return (sendto(p_socket, l_hdr, l_hdr->nlmsg_len, 0, (struct sockaddr *)&l_addr, sizeof(l_addr)));
-}
-
-static int netlink_recv(int p_socket, void *p_buffer, size_t p_len)
-{
-    struct sockaddr_nl l_addr;
-    struct msghdr l_msg;
-
-    struct iovec l_iov;
-    l_iov.iov_base = p_buffer;
-    l_iov.iov_len = p_len;
-
-    for(;;)
-    {
-        int l_result;
-        l_msg.msg_name = (void *)&l_addr;
-        l_msg.msg_namelen = sizeof(l_addr);
-        l_msg.msg_iov = &l_iov;
-        l_msg.msg_iovlen = 1;
-        l_msg.msg_control = NULL;
-        l_msg.msg_controllen = 0;
-        l_msg.msg_flags = 0;
-        l_result = recvmsg(p_socket, &l_msg, 0);
-
-        if(l_result < 0)
-        {
-            if(errno == EINTR)
-            {
-                continue;
-            }
-            return -2;
-        }
-
-        /* Buffer was too small */
-        if(l_msg.msg_flags & MSG_TRUNC)
-        {
-            return -1;
-        }
-        return l_result;
-    }
-}
-
-static struct nlmsghdr *getNetlinkResponse(int p_socket, pid_t p_pid, int *p_size, int *p_done)
-{
-    size_t l_size = 4096;
-    void *l_buffer = NULL;
-
-    for(;;)
-    {
-        int l_read;
-
-        uv__free(l_buffer);
-        l_buffer = uv__malloc(l_size);
-        if (l_buffer == NULL)
-        {
-            return NULL;
-        }
-
-        l_read = netlink_recv(p_socket, l_buffer, l_size);
-        *p_size = l_read;
-        if(l_read == -2)
-        {
-            uv__free(l_buffer);
-            return NULL;
-        }
-        if(l_read >= 0)
-        {
-            struct nlmsghdr *l_hdr;
-            for(l_hdr = (struct nlmsghdr *)l_buffer; NLMSG_OK(l_hdr, (unsigned int)l_read); l_hdr = (struct nlmsghdr *)NLMSG_NEXT(l_hdr, l_read))
-            {
-                if((pid_t)l_hdr->nlmsg_pid != p_pid || (int)l_hdr->nlmsg_seq != p_socket)
-                {
-                    continue;
-                }
-
-                if(l_hdr->nlmsg_type == NLMSG_DONE)
-                {
-                    *p_done = 1;
-                    break;
-                }
-
-                if(l_hdr->nlmsg_type == NLMSG_ERROR)
-                {
-                    uv__free(l_buffer);
-                    return NULL;
-                }
-            }
-            return l_buffer;
-        }
-
-        l_size *= 2;
-    }
-}
-
-static NetlinkList *newListItem(struct nlmsghdr *p_data, unsigned int p_size)
-{
-    NetlinkList *l_item = uv__malloc(sizeof(NetlinkList));
-    if (l_item == NULL)
-    {
-        return NULL;
-    }
-
-    l_item->m_next = NULL;
-    l_item->m_data = p_data;
-    l_item->m_size = p_size;
-    return l_item;
-}
-
-static void freeResultList(NetlinkList *p_list)
-{
-    NetlinkList *l_cur;
-    while(p_list)
-    {
-        l_cur = p_list;
-        p_list = p_list->m_next;
-        uv__free(l_cur->m_data);
-        uv__free(l_cur);
-    }
-}
-
-static NetlinkList *getResultList(int p_socket, int p_request, pid_t p_pid)
-{
-    int l_size;
-    int l_done;
-    NetlinkList *l_list;
-    NetlinkList *l_end;
-
-    if(netlink_send(p_socket, p_request) < 0)
-    {
-        return NULL;
-    }
-
-    l_list = NULL;
-    l_end = NULL;
-
-    l_done = 0;
-    while(!l_done)
-    {
-        NetlinkList *l_item;
-
-        struct nlmsghdr *l_hdr = getNetlinkResponse(p_socket, p_pid, &l_size, &l_done);
-        /* Error */
-        if(!l_hdr)
-        {
-            freeResultList(l_list);
-            return NULL;
-        }
-
-        l_item = newListItem(l_hdr, l_size);
-        if (!l_item)
-        {
-            freeResultList(l_list);
-            return NULL;
-        }
-        if(!l_list)
-        {
-            l_list = l_item;
-        }
-        else
-        {
-            l_end->m_next = l_item;
-        }
-        l_end = l_item;
-    }
-    return l_list;
-}
-
-static size_t maxSize(size_t a, size_t b)
-{
-    return (a > b ? a : b);
-}
-
-static size_t calcAddrLen(sa_family_t p_family, int p_dataSize)
-{
-    switch(p_family)
-    {
-        case AF_INET:
-            return sizeof(struct sockaddr_in);
-        case AF_INET6:
-            return sizeof(struct sockaddr_in6);
-        case AF_PACKET:
-            return maxSize(sizeof(struct sockaddr_ll), offsetof(struct sockaddr_ll, sll_addr) + p_dataSize);
-        default:
-            return maxSize(sizeof(struct sockaddr), offsetof(struct sockaddr, sa_data) + p_dataSize);
-    }
-}
-
-static void makeSockaddr(sa_family_t p_family, struct sockaddr *p_dest, void *p_data, size_t p_size)
-{
-    switch(p_family)
-    {
-        case AF_INET:
-            memcpy(&((struct sockaddr_in*)p_dest)->sin_addr, p_data, p_size);
-            break;
-        case AF_INET6:
-            memcpy(&((struct sockaddr_in6*)p_dest)->sin6_addr, p_data, p_size);
-            break;
-        case AF_PACKET:
-            memcpy(((struct sockaddr_ll*)p_dest)->sll_addr, p_data, p_size);
-            ((struct sockaddr_ll*)p_dest)->sll_halen = p_size;
-            break;
-        default:
-            memcpy(p_dest->sa_data, p_data, p_size);
-            break;
-    }
-    p_dest->sa_family = p_family;
-}
-
-static void addToEnd(struct ifaddrs **p_resultList, struct ifaddrs *p_entry)
-{
-    if(!*p_resultList)
-    {
-        *p_resultList = p_entry;
-    }
-    else
-    {
-        struct ifaddrs *l_cur = *p_resultList;
-        while(l_cur->ifa_next)
-        {
-            l_cur = l_cur->ifa_next;
-        }
-        l_cur->ifa_next = p_entry;
-    }
-}
-
-static int interpretLink(struct nlmsghdr *p_hdr, struct ifaddrs **p_resultList)
-{
-    struct ifaddrs *l_entry;
-
-    char *l_index;
-    char *l_name;
-    char *l_addr;
-    char *l_data;
-
-    struct ifinfomsg *l_info = (struct ifinfomsg *)NLMSG_DATA(p_hdr);
-
-    size_t l_nameSize = 0;
-    size_t l_addrSize = 0;
-    size_t l_dataSize = 0;
-
-    size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg));
-    struct rtattr *l_rta;
-    for(l_rta = IFLA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        switch(l_rta->rta_type)
-        {
-            case IFLA_ADDRESS:
-            case IFLA_BROADCAST:
-                l_addrSize += NLMSG_ALIGN(calcAddrLen(AF_PACKET, l_rtaDataSize));
-                break;
-            case IFLA_IFNAME:
-                l_nameSize += NLMSG_ALIGN(l_rtaSize + 1);
-                break;
-            case IFLA_STATS:
-                l_dataSize += NLMSG_ALIGN(l_rtaSize);
-                break;
-            default:
-                break;
-        }
-    }
-
-    l_entry = uv__malloc(sizeof(struct ifaddrs) + sizeof(int) + l_nameSize + l_addrSize + l_dataSize);
-    if (l_entry == NULL)
-    {
-        return -1;
-    }
-    memset(l_entry, 0, sizeof(struct ifaddrs));
-    l_entry->ifa_name = "";
-
-    l_index = ((char *)l_entry) + sizeof(struct ifaddrs);
-    l_name = l_index + sizeof(int);
-    l_addr = l_name + l_nameSize;
-    l_data = l_addr + l_addrSize;
-
-    /* Save the interface index so we can look it up when handling the
-     * addresses.
-     */
-    memcpy(l_index, &l_info->ifi_index, sizeof(int));
-
-    l_entry->ifa_flags = l_info->ifi_flags;
-
-    l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifinfomsg));
-    for(l_rta = IFLA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        void *l_rtaData = RTA_DATA(l_rta);
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        switch(l_rta->rta_type)
-        {
-            case IFLA_ADDRESS:
-            case IFLA_BROADCAST:
-            {
-                size_t l_addrLen = calcAddrLen(AF_PACKET, l_rtaDataSize);
-                makeSockaddr(AF_PACKET, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize);
-                ((struct sockaddr_ll *)l_addr)->sll_ifindex = l_info->ifi_index;
-                ((struct sockaddr_ll *)l_addr)->sll_hatype = l_info->ifi_type;
-                if(l_rta->rta_type == IFLA_ADDRESS)
-                {
-                    l_entry->ifa_addr = (struct sockaddr *)l_addr;
-                }
-                else
-                {
-                    l_entry->ifa_broadaddr = (struct sockaddr *)l_addr;
-                }
-                l_addr += NLMSG_ALIGN(l_addrLen);
-                break;
-            }
-            case IFLA_IFNAME:
-                strncpy(l_name, l_rtaData, l_rtaDataSize);
-                l_name[l_rtaDataSize] = '\0';
-                l_entry->ifa_name = l_name;
-                break;
-            case IFLA_STATS:
-                memcpy(l_data, l_rtaData, l_rtaDataSize);
-                l_entry->ifa_data = l_data;
-                break;
-            default:
-                break;
-        }
-    }
-
-    addToEnd(p_resultList, l_entry);
-    return 0;
-}
-
-static struct ifaddrs *findInterface(int p_index, struct ifaddrs **p_links, int p_numLinks)
-{
-    int l_num = 0;
-    struct ifaddrs *l_cur = *p_links;
-    while(l_cur && l_num < p_numLinks)
-    {
-        char *l_indexPtr = ((char *)l_cur) + sizeof(struct ifaddrs);
-        int l_index;
-        memcpy(&l_index, l_indexPtr, sizeof(int));
-        if(l_index == p_index)
-        {
-            return l_cur;
-        }
-
-        l_cur = l_cur->ifa_next;
-        ++l_num;
-    }
-    return NULL;
-}
-
-static int interpretAddr(struct nlmsghdr *p_hdr, struct ifaddrs **p_resultList, int p_numLinks)
-{
-    struct ifaddrmsg *l_info = (struct ifaddrmsg *)NLMSG_DATA(p_hdr);
-    struct ifaddrs *l_interface = findInterface(l_info->ifa_index, p_resultList, p_numLinks);
-
-    size_t l_nameSize = 0;
-    size_t l_addrSize = 0;
-
-    int l_addedNetmask = 0;
-
-    size_t l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg));
-    struct rtattr *l_rta;
-    struct ifaddrs *l_entry;
-
-    char *l_name;
-    char *l_addr;
-
-    for(l_rta = IFA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        if(l_info->ifa_family == AF_PACKET)
-        {
-            continue;
-        }
-
-        switch(l_rta->rta_type)
-        {
-            case IFA_ADDRESS:
-            case IFA_LOCAL:
-                l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
-                if((l_info->ifa_family == AF_INET || l_info->ifa_family == AF_INET6) && !l_addedNetmask)
-                {
-                    /* Make room for netmask */
-                    l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
-                    l_addedNetmask = 1;
-                }
-                break;
-            case IFA_BROADCAST:
-                l_addrSize += NLMSG_ALIGN(calcAddrLen(l_info->ifa_family, l_rtaDataSize));
-                break;
-            case IFA_LABEL:
-                l_nameSize += NLMSG_ALIGN(l_rtaDataSize + 1);
-                break;
-            default:
-                break;
-        }
-    }
-
-    l_entry = uv__malloc(sizeof(struct ifaddrs) + l_nameSize + l_addrSize);
-    if (l_entry == NULL)
-    {
-        return -1;
-    }
-    memset(l_entry, 0, sizeof(struct ifaddrs));
-    l_entry->ifa_name = (l_interface ? l_interface->ifa_name : "");
-
-    l_name = ((char *)l_entry) + sizeof(struct ifaddrs);
-    l_addr = l_name + l_nameSize;
-
-    l_entry->ifa_flags = l_info->ifa_flags;
-    if(l_interface)
-    {
-        l_entry->ifa_flags |= l_interface->ifa_flags;
-    }
-
-    l_rtaSize = NLMSG_PAYLOAD(p_hdr, sizeof(struct ifaddrmsg));
-    for(l_rta = IFA_RTA(l_info); RTA_OK(l_rta, l_rtaSize); l_rta = RTA_NEXT(l_rta, l_rtaSize))
-    {
-        void *l_rtaData = RTA_DATA(l_rta);
-        size_t l_rtaDataSize = RTA_PAYLOAD(l_rta);
-        switch(l_rta->rta_type)
-        {
-            case IFA_ADDRESS:
-            case IFA_BROADCAST:
-            case IFA_LOCAL:
-            {
-                size_t l_addrLen = calcAddrLen(l_info->ifa_family, l_rtaDataSize);
-                makeSockaddr(l_info->ifa_family, (struct sockaddr *)l_addr, l_rtaData, l_rtaDataSize);
-                if(l_info->ifa_family == AF_INET6)
-                {
-                    if(IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)l_rtaData) || IN6_IS_ADDR_MC_LINKLOCAL((struct in6_addr *)l_rtaData))
-                    {
-                        ((struct sockaddr_in6 *)l_addr)->sin6_scope_id = l_info->ifa_index;
-                    }
-                }
-
-                /* Apparently in a point-to-point network IFA_ADDRESS contains
-                 * the dest address and IFA_LOCAL contains the local address
-                 */
-                if(l_rta->rta_type == IFA_ADDRESS)
-                {
-                    if(l_entry->ifa_addr)
-                    {
-                        l_entry->ifa_dstaddr = (struct sockaddr *)l_addr;
-                    }
-                    else
-                    {
-                        l_entry->ifa_addr = (struct sockaddr *)l_addr;
-                    }
-                }
-                else if(l_rta->rta_type == IFA_LOCAL)
-                {
-                    if(l_entry->ifa_addr)
-                    {
-                        l_entry->ifa_dstaddr = l_entry->ifa_addr;
-                    }
-                    l_entry->ifa_addr = (struct sockaddr *)l_addr;
-                }
-                else
-                {
-                    l_entry->ifa_broadaddr = (struct sockaddr *)l_addr;
-                }
-                l_addr += NLMSG_ALIGN(l_addrLen);
-                break;
-            }
-            case IFA_LABEL:
-                strncpy(l_name, l_rtaData, l_rtaDataSize);
-                l_name[l_rtaDataSize] = '\0';
-                l_entry->ifa_name = l_name;
-                break;
-            default:
-                break;
-        }
-    }
-
-    if(l_entry->ifa_addr && (l_entry->ifa_addr->sa_family == AF_INET || l_entry->ifa_addr->sa_family == AF_INET6))
-    {
-        unsigned l_maxPrefix = (l_entry->ifa_addr->sa_family == AF_INET ? 32 : 128);
-        unsigned l_prefix = (l_info->ifa_prefixlen > l_maxPrefix ? l_maxPrefix : l_info->ifa_prefixlen);
-        unsigned char l_mask[16] = {0};
-        unsigned i;
-        for(i=0; i<(l_prefix/8); ++i)
-        {
-            l_mask[i] = 0xff;
-        }
-        if(l_prefix % 8)
-        {
-            l_mask[i] = 0xff << (8 - (l_prefix % 8));
-        }
-
-        makeSockaddr(l_entry->ifa_addr->sa_family, (struct sockaddr *)l_addr, l_mask, l_maxPrefix / 8);
-        l_entry->ifa_netmask = (struct sockaddr *)l_addr;
-    }
-
-    addToEnd(p_resultList, l_entry);
-    return 0;
-}
-
-static int interpretLinks(int p_socket, pid_t p_pid, NetlinkList *p_netlinkList, struct ifaddrs **p_resultList)
-{
-
-    int l_numLinks = 0;
-    for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next)
-    {
-        unsigned int l_nlsize = p_netlinkList->m_size;
-        struct nlmsghdr *l_hdr;
-        for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize))
-        {
-            if((pid_t)l_hdr->nlmsg_pid != p_pid || (int)l_hdr->nlmsg_seq != p_socket)
-            {
-                continue;
-            }
-
-            if(l_hdr->nlmsg_type == NLMSG_DONE)
-            {
-                break;
-            }
-
-            if(l_hdr->nlmsg_type == RTM_NEWLINK)
-            {
-                if(interpretLink(l_hdr, p_resultList) == -1)
-                {
-                    return -1;
-                }
-                ++l_numLinks;
-            }
-        }
-    }
-    return l_numLinks;
-}
-
-static int interpretAddrs(int p_socket, pid_t p_pid, NetlinkList *p_netlinkList, struct ifaddrs **p_resultList, int p_numLinks)
-{
-    for(; p_netlinkList; p_netlinkList = p_netlinkList->m_next)
-    {
-        unsigned int l_nlsize = p_netlinkList->m_size;
-        struct nlmsghdr *l_hdr;
-        for(l_hdr = p_netlinkList->m_data; NLMSG_OK(l_hdr, l_nlsize); l_hdr = NLMSG_NEXT(l_hdr, l_nlsize))
-        {
-            if((pid_t)l_hdr->nlmsg_pid != p_pid || (int)l_hdr->nlmsg_seq != p_socket)
-            {
-                continue;
-            }
-
-            if(l_hdr->nlmsg_type == NLMSG_DONE)
-            {
-                break;
-            }
-
-            if(l_hdr->nlmsg_type == RTM_NEWADDR)
-            {
-                if (interpretAddr(l_hdr, p_resultList, p_numLinks) == -1)
-                {
-                    return -1;
-                }
-            }
-        }
-    }
-    return 0;
-}
-
-int getifaddrs(struct ifaddrs **ifap)
-{
-    int l_socket;
-    int l_result;
-    int l_numLinks;
-    pid_t l_pid;
-    NetlinkList *l_linkResults;
-    NetlinkList *l_addrResults;
-
-    if(!ifap)
-    {
-        return -1;
-    }
-    *ifap = NULL;
-
-    l_socket = netlink_socket(&l_pid);
-    if(l_socket < 0)
-    {
-        return -1;
-    }
-
-    l_linkResults = getResultList(l_socket, RTM_GETLINK, l_pid);
-    if(!l_linkResults)
-    {
-        close(l_socket);
-        return -1;
-    }
-
-    l_addrResults = getResultList(l_socket, RTM_GETADDR, l_pid);
-    if(!l_addrResults)
-    {
-        close(l_socket);
-        freeResultList(l_linkResults);
-        return -1;
-    }
-
-    l_result = 0;
-    l_numLinks = interpretLinks(l_socket, l_pid, l_linkResults, ifap);
-    if(l_numLinks == -1 || interpretAddrs(l_socket, l_pid, l_addrResults, ifap, l_numLinks) == -1)
-    {
-        l_result = -1;
-    }
-
-    freeResultList(l_linkResults);
-    freeResultList(l_addrResults);
-    close(l_socket);
-    return l_result;
-}
-
-void freeifaddrs(struct ifaddrs *ifa)
-{
-    struct ifaddrs *l_cur;
-    while(ifa)
-    {
-        l_cur = ifa;
-        ifa = ifa->ifa_next;
-        uv__free(l_cur);
-    }
-}

src/unix/async.c

@@ -24,9 +24,9 @@
 
 #include "uv.h"
 #include "internal.h"
-#include "atomic-ops.h"
 
 #include <errno.h>
+#include <stdatomic.h>
 #include <stdio.h>  /* snprintf() */
 #include <assert.h>
 #include <stdlib.h>
@@ -38,8 +38,37 @@
 #include <sys/eventfd.h>
 #endif
 
+#if UV__KQUEUE_EVFILT_USER
+static uv_once_t kqueue_runtime_detection_guard = UV_ONCE_INIT;
+static int kqueue_evfilt_user_support = 1;
+
+
+static void uv__kqueue_runtime_detection(void) {
+  int kq;
+  struct kevent ev[2];
+  struct timespec timeout = {0, 0};
+
+  /* Perform the runtime detection to ensure that kqueue with
+   * EVFILT_USER actually works. */
+  kq = kqueue();
+  EV_SET(ev, UV__KQUEUE_EVFILT_USER_IDENT, EVFILT_USER,
+         EV_ADD | EV_CLEAR, 0, 0, 0);
+  EV_SET(ev + 1, UV__KQUEUE_EVFILT_USER_IDENT, EVFILT_USER,
+         0, NOTE_TRIGGER, 0, 0);
+  if (kevent(kq, ev, 2, ev, 1, &timeout) < 1 ||
+      ev[0].filter != EVFILT_USER ||
+      ev[0].ident != UV__KQUEUE_EVFILT_USER_IDENT ||
+      ev[0].flags & EV_ERROR)
+    /* If we wind up here, we can assume that EVFILT_USER is defined but
+     * broken on the current system. */
+    kqueue_evfilt_user_support = 0;
+  uv__close(kq);
+}
+#endif
+
 static void uv__async_send(uv_loop_t* loop);
 static int uv__async_start(uv_loop_t* loop);
+static void uv__cpu_relax(void);
 
 
 int uv_async_init(uv_loop_t* loop, uv_async_t* handle, uv_async_cb async_cb) {
@@ -52,8 +81,9 @@ int uv_async_init(uv_loop_t* loop, uv_async_t* handle, uv_async_cb async_cb) {
   uv__handle_init(loop, (uv_handle_t*)handle, UV_ASYNC);
   handle->async_cb = async_cb;
   handle->pending = 0;
+  handle->u.fd = 0; /* This will be used as a busy flag. */
 
-  QUEUE_INSERT_TAIL(&loop->async_handles, &handle->queue);
+  uv__queue_insert_tail(&loop->async_handles, &handle->queue);
   uv__handle_start(handle);
 
   return 0;
@@ -61,46 +91,54 @@ int uv_async_init(uv_loop_t* loop, uv_async_t* handle, uv_async_cb async_cb) {
 
 
 int uv_async_send(uv_async_t* handle) {
+  _Atomic int* pending;
+  _Atomic int* busy;
+
+  pending = (_Atomic int*) &handle->pending;
+  busy = (_Atomic int*) &handle->u.fd;
+
   /* Do a cheap read first. */
-  if (ACCESS_ONCE(int, handle->pending) != 0)
+  if (atomic_load_explicit(pending, memory_order_relaxed) != 0)
     return 0;
 
-  /* Tell the other thread we're busy with the handle. */
-  if (cmpxchgi(&handle->pending, 0, 1) != 0)
-    return 0;
+  /* Set the loop to busy. */
+  atomic_fetch_add(busy, 1);
 
   /* Wake up the other thread's event loop. */
+  if (atomic_exchange(pending, 1) == 0)
     uv__async_send(handle->loop);
 
-  /* Tell the other thread we're done. */
-  if (cmpxchgi(&handle->pending, 1, 2) != 1)
-    abort();
+  /* Set the loop to not-busy. */
+  atomic_fetch_add(busy, -1);
 
   return 0;
 }
 
 
-/* Only call this from the event loop thread. */
-static int uv__async_spin(uv_async_t* handle) {
+/* Wait for the busy flag to clear before closing.
+ * Only call this from the event loop thread. */
+static void uv__async_spin(uv_async_t* handle) {
+  _Atomic int* pending;
+  _Atomic int* busy;
   int i;
-  int rc;
+
+  pending = (_Atomic int*) &handle->pending;
+  busy = (_Atomic int*) &handle->u.fd;
+
+  /* Set the pending flag first, so no new events will be added by other
+   * threads after this function returns. */
+  atomic_store(pending, 1);
 
   for (;;) {
-    /* 997 is not completely chosen at random. It's a prime number, acyclical
-     * by nature, and should therefore hopefully dampen sympathetic resonance.
+    /* 997 is not completely chosen at random. It's a prime number, acyclic by
+     * nature, and should therefore hopefully dampen sympathetic resonance.
      */
     for (i = 0; i < 997; i++) {
-      /* rc=0 -- handle is not pending.
-       * rc=1 -- handle is pending, other thread is still working with it.
-       * rc=2 -- handle is pending, other thread is done.
-       */
-      rc = cmpxchgi(&handle->pending, 2, 0);
-
-      if (rc != 1)
-        return rc;
+      if (atomic_load(busy) == 0)
+        return;
 
       /* Other thread is busy with this handle, spin until it's done. */
-      cpu_relax();
+      uv__cpu_relax();
     }
 
     /* Yield the CPU. We may have preempted the other thread while it's
@@ -114,7 +152,7 @@ static int uv__async_spin(uv_async_t* handle) {
 
 void uv__async_close(uv_async_t* handle) {
   uv__async_spin(handle);
-  QUEUE_REMOVE(&handle->queue);
+  uv__queue_remove(&handle->queue);
   uv__handle_stop(handle);
 }
 
@@ -122,13 +160,18 @@ void uv__async_close(uv_async_t* handle) {
 static void uv__async_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
   char buf[1024];
   ssize_t r;
-  QUEUE queue;
-  QUEUE* q;
+  struct uv__queue queue;
+  struct uv__queue* q;
   uv_async_t* h;
+  _Atomic int *pending;
 
   assert(w == &loop->async_io_watcher);
 
+#if UV__KQUEUE_EVFILT_USER
+  for (;!kqueue_evfilt_user_support;) {
+#else
   for (;;) {
+#endif
     r = read(w->fd, buf, sizeof(buf));
 
     if (r == sizeof(buf))
@@ -146,16 +189,18 @@ static void uv__async_io(uv_loop_t* loop, uv__io_t* w, unsigned int events) {
     abort();
   }
 
-  QUEUE_MOVE(&loop->async_handles, &queue);
-  while (!QUEUE_EMPTY(&queue)) {
-    q = QUEUE_HEAD(&queue);
-    h = QUEUE_DATA(q, uv_async_t, queue);
+  uv__queue_move(&loop->async_handles, &queue);
+  while (!uv__queue_empty(&queue)) {
+    q = uv__queue_head(&queue);
+    h = uv__queue_data(q, uv_async_t, queue);
 
-    QUEUE_REMOVE(q);
-    QUEUE_INSERT_TAIL(&loop->async_handles, q);
+    uv__queue_remove(q);
+    uv__queue_insert_tail(&loop->async_handles, q);
 
-    if (0 == uv__async_spin(h))
-      continue;  /* Not pending. */
+    /* Atomically fetch and clear pending flag */
+    pending = (_Atomic int*) &h->pending;
+    if (atomic_exchange(pending, 0) == 0)
+      continue;
 
     if (h->async_cb == NULL)
       continue;
@@ -182,6 +227,17 @@ static void uv__async_send(uv_loop_t* loop) {
     len = sizeof(val);
     fd = loop->async_io_watcher.fd;  /* eventfd */
   }
+#elif UV__KQUEUE_EVFILT_USER
+  struct kevent ev;
+
+  if (kqueue_evfilt_user_support) {
+    fd = loop->async_io_watcher.fd; /* magic number for EVFILT_USER */
+    EV_SET(&ev, fd, EVFILT_USER, 0, NOTE_TRIGGER, 0, 0);
+    r = kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL);
+    if (r == 0)
+      return;
+    abort();
+  }
 #endif
 
   do
@@ -202,6 +258,9 @@ static void uv__async_send(uv_loop_t* loop) {
 static int uv__async_start(uv_loop_t* loop) {
   int pipefd[2];
   int err;
+#if UV__KQUEUE_EVFILT_USER
+  struct kevent ev;
+#endif
 
   if (loop->async_io_watcher.fd != -1)
     return 0;
@@ -213,6 +272,36 @@ static int uv__async_start(uv_loop_t* loop) {
 
   pipefd[0] = err;
   pipefd[1] = -1;
+#elif UV__KQUEUE_EVFILT_USER
+  uv_once(&kqueue_runtime_detection_guard, uv__kqueue_runtime_detection);
+  if (kqueue_evfilt_user_support) {
+    /* In order not to break the generic pattern of I/O polling, a valid
+     * file descriptor is required to take up a room in loop->watchers,
+     * thus we create one for that, but this fd will not be actually used,
+     * it's just a placeholder and magic number which is going to be closed
+     * during the cleanup, as other FDs. */
+    err = uv__open_cloexec("/", O_RDONLY);
+    if (err < 0)
+      return err;
+
+    pipefd[0] = err;
+    pipefd[1] = -1;
+
+    /* When using EVFILT_USER event to wake up the kqueue, this event must be
+     * registered beforehand. Otherwise, calling kevent() to issue an
+     * unregistered EVFILT_USER event will get an ENOENT.
+     * Since uv__async_send() may happen before uv__io_poll() with multi-threads,
+     * we can't defer this registration of EVFILT_USER event as we did for other
+     * events, but must perform it right away. */
+    EV_SET(&ev, err, EVFILT_USER, EV_ADD | EV_CLEAR, 0, 0, 0);
+    err = kevent(loop->backend_fd, &ev, 1, NULL, 0, NULL);
+    if (err < 0)
+      return UV__ERR(errno);
+  } else {
+    err = uv__make_pipe(pipefd, UV_NONBLOCK_PIPE);
+    if (err < 0)
+      return err;
+  }
 #else
   err = uv__make_pipe(pipefd, UV_NONBLOCK_PIPE);
   if (err < 0)
@@ -223,24 +312,39 @@ static int uv__async_start(uv_loop_t* loop) {
   uv__io_start(loop, &loop->async_io_watcher, POLLIN);
   loop->async_wfd = pipefd[1];
 
+#if UV__KQUEUE_EVFILT_USER
+  /* Prevent the EVFILT_USER event from being added to kqueue redundantly
+   * and mistakenly later in uv__io_poll(). */
+  if (kqueue_evfilt_user_support)
+    loop->async_io_watcher.events = loop->async_io_watcher.pevents;
+#endif
+
   return 0;
 }
 
 
-int uv__async_fork(uv_loop_t* loop) {
-  if (loop->async_io_watcher.fd == -1) /* never started */
-    return 0;
-
-  uv__async_stop(loop);
-
-  return uv__async_start(loop);
-}
-
-
 void uv__async_stop(uv_loop_t* loop) {
+  struct uv__queue queue;
+  struct uv__queue* q;
+  uv_async_t* h;
+
   if (loop->async_io_watcher.fd == -1)
     return;
 
+  /* Make sure no other thread is accessing the async handle fd after the loop
+   * cleanup.
+   */
+  uv__queue_move(&loop->async_handles, &queue);
+  while (!uv__queue_empty(&queue)) {
+    q = uv__queue_head(&queue);
+    h = uv__queue_data(q, uv_async_t, queue);
+
+    uv__queue_remove(q);
+    uv__queue_insert_tail(&loop->async_handles, q);
+
+    uv__async_spin(h);
+  }
+
   if (loop->async_wfd != -1) {
     if (loop->async_wfd != loop->async_io_watcher.fd)
       uv__close(loop->async_wfd);
@@ -251,3 +355,58 @@ void uv__async_stop(uv_loop_t* loop) {
   uv__close(loop->async_io_watcher.fd);
   loop->async_io_watcher.fd = -1;
 }
+
+
+int uv__async_fork(uv_loop_t* loop) {
+  struct uv__queue queue;
+  struct uv__queue* q;
+  uv_async_t* h;
+
+  if (loop->async_io_watcher.fd == -1) /* never started */
+    return 0;
+
+  uv__queue_move(&loop->async_handles, &queue);
+  while (!uv__queue_empty(&queue)) {
+    q = uv__queue_head(&queue);
+    h = uv__queue_data(q, uv_async_t, queue);
+
+    uv__queue_remove(q);
+    uv__queue_insert_tail(&loop->async_handles, q);
+
+    /* The state of any thread that set pending is now likely corrupt in this
+     * child because the user called fork, so just clear these flags and move
+     * on. Calling most libc functions after `fork` is declared to be undefined
+     * behavior anyways, unless async-signal-safe, for multithreaded programs
+     * like libuv, and nothing interesting in pthreads is async-signal-safe.
+     */
+    h->pending = 0;
+    /* This is the busy flag, and we just abruptly lost all other threads. */
+    h->u.fd = 0;
+  }
+
+  /* Recreate these, since they still exist, but belong to the wrong pid now. */
+  if (loop->async_wfd != -1) {
+    if (loop->async_wfd != loop->async_io_watcher.fd)
+      uv__close(loop->async_wfd);
+    loop->async_wfd = -1;
+  }
+
+  uv__io_stop(loop, &loop->async_io_watcher, POLLIN);
+  uv__close(loop->async_io_watcher.fd);
+  loop->async_io_watcher.fd = -1;
+
+  return uv__async_start(loop);
+}
+
+
+static void uv__cpu_relax(void) {
+#if defined(__i386__) || defined(__x86_64__)
+  __asm__ __volatile__ ("rep; nop" ::: "memory");  /* a.k.a. PAUSE */
+#elif (defined(__arm__) && __ARM_ARCH >= 7) || defined(__aarch64__)
+  __asm__ __volatile__ ("yield" ::: "memory");
+#elif (defined(__ppc__) || defined(__ppc64__)) && defined(__APPLE__)
+  __asm volatile ("" : : : "memory");
+#elif !defined(__APPLE__) && (defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__))
+  __asm__ __volatile__ ("or 1,1,1; or 2,2,2" ::: "memory");
+#endif
+}

src/unix/atomic-ops.h

@@ -1,63 +0,0 @@
-/* Copyright (c) 2013, Ben Noordhuis <info@bnoordhuis.nl>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef UV_ATOMIC_OPS_H_
-#define UV_ATOMIC_OPS_H_
-
-#include "internal.h"  /* UV_UNUSED */
-
-#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
-#include <atomic.h>
-#endif
-
-UV_UNUSED(static int cmpxchgi(int* ptr, int oldval, int newval));
-UV_UNUSED(static void cpu_relax(void));
-
-/* Prefer hand-rolled assembly over the gcc builtins because the latter also
- * issue full memory barriers.
- */
-UV_UNUSED(static int cmpxchgi(int* ptr, int oldval, int newval)) {
-#if defined(__i386__) || defined(__x86_64__)
-  int out;
-  __asm__ __volatile__ ("lock; cmpxchg %2, %1;"
-                        : "=a" (out), "+m" (*(volatile int*) ptr)
-                        : "r" (newval), "0" (oldval)
-                        : "memory");
-  return out;
-#elif defined(__MVS__)
-  unsigned int op4;
-  if (__plo_CSST(ptr, (unsigned int*) &oldval, newval,
-                (unsigned int*) ptr, *ptr, &op4))
-    return oldval;
-  else
-    return op4;
-#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
-  return atomic_cas_uint((uint_t *)ptr, (uint_t)oldval, (uint_t)newval);
-#else
-  return __sync_val_compare_and_swap(ptr, oldval, newval);
-#endif
-}
-
-UV_UNUSED(static void cpu_relax(void)) {
-#if defined(__i386__) || defined(__x86_64__)
-  __asm__ __volatile__ ("rep; nop" ::: "memory");  /* a.k.a. PAUSE */
-#elif (defined(__arm__) && __ARM_ARCH >= 7) || defined(__aarch64__)
-  __asm__ __volatile__ ("yield" ::: "memory");
-#elif defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__)
-  __asm__ __volatile__ ("or 1,1,1; or 2,2,2" ::: "memory");
-#endif
-}
-
-#endif  /* UV_ATOMIC_OPS_H_ */

src/unix/bsd-ifaddrs.c

@@ -27,7 +27,7 @@
 
 #include <ifaddrs.h>
 #include <net/if.h>
-#if !defined(__CYGWIN__) && !defined(__MSYS__)
+#if !defined(__CYGWIN__) && !defined(__MSYS__) && !defined(__GNU__)
 #include <net/if_dl.h>
 #endif
 
@@ -40,7 +40,7 @@ static int uv__ifaddr_exclude(struct ifaddrs *ent, int exclude_type) {
     return 1;
   if (ent->ifa_addr == NULL)
     return 1;
-#if !defined(__CYGWIN__) && !defined(__MSYS__)
+#if !defined(__CYGWIN__) && !defined(__MSYS__) && !defined(__GNU__)
   /*
    * If `exclude_type` is `UV__EXCLUDE_IFPHYS`, return whether `sa_family`
    * equals `AF_LINK`. Otherwise, the result depends on the operating
@@ -65,13 +65,13 @@ static int uv__ifaddr_exclude(struct ifaddrs *ent, int exclude_type) {
   return 0;
 }
 
+/* TODO(bnoordhuis) share with linux.c */
 int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
+  uv_interface_address_t* address;
   struct ifaddrs* addrs;
   struct ifaddrs* ent;
-  uv_interface_address_t* address;
-#if !(defined(__CYGWIN__) || defined(__MSYS__))
-  int i;
-#endif
+  size_t namelen;
+  char* name;
 
   *count = 0;
   *addresses = NULL;
@@ -80,9 +80,11 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
     return UV__ERR(errno);
 
   /* Count the number of interfaces */
+  namelen = 0;
   for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
     if (uv__ifaddr_exclude(ent, UV__EXCLUDE_IFADDR))
       continue;
+    namelen += strlen(ent->ifa_name) + 1;
     (*count)++;
   }
 
@@ -92,20 +94,22 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
   }
 
   /* Make sure the memory is initiallized to zero using calloc() */
-  *addresses = uv__calloc(*count, sizeof(**addresses));
-
+  *addresses = uv__calloc(1, *count * sizeof(**addresses) + namelen);
   if (*addresses == NULL) {
     freeifaddrs(addrs);
     return UV_ENOMEM;
   }
 
+  name = (char*) &(*addresses)[*count];
   address = *addresses;
 
   for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
     if (uv__ifaddr_exclude(ent, UV__EXCLUDE_IFADDR))
       continue;
 
-    address->name = uv__strdup(ent->ifa_name);
+    namelen = strlen(ent->ifa_name) + 1;
+    address->name = memcpy(name, ent->ifa_name, namelen);
+    name += namelen;
 
     if (ent->ifa_addr->sa_family == AF_INET6) {
       address->address.address6 = *((struct sockaddr_in6*) ent->ifa_addr);
@@ -126,9 +130,11 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
     address++;
   }
 
-#if !(defined(__CYGWIN__) || defined(__MSYS__))
+#if !(defined(__CYGWIN__) || defined(__MSYS__)) && !defined(__GNU__)
   /* Fill in physical addresses for each interface */
   for (ent = addrs; ent != NULL; ent = ent->ifa_next) {
+    int i;
+
     if (uv__ifaddr_exclude(ent, UV__EXCLUDE_IFPHYS))
       continue;
 
@@ -151,13 +157,8 @@ int uv_interface_addresses(uv_interface_address_t** addresses, int* count) {
 }
 
 
+/* TODO(bnoordhuis) share with linux.c */
 void uv_free_interface_addresses(uv_interface_address_t* addresses,
                                  int count) {
-  int i;
-
-  for (i = 0; i < count; i++) {
-    uv__free(addresses[i].name);
-  }
-
   uv__free(addresses);
 }

src/unix/bsd-proctitle.c

@@ -38,6 +38,7 @@ static void init_process_title_mutex_once(void) {
 
 
 void uv__process_title_cleanup(void) {
+  uv_once(&process_title_mutex_once, init_process_title_mutex_once);
   uv_mutex_destroy(&process_title_mutex);
 }
 

src/unix/cygwin.c

@@ -36,9 +36,45 @@ int uv_uptime(double* uptime) {
 }
 
 int uv_resident_set_memory(size_t* rss) {
-  /* FIXME: read /proc/meminfo? */
-  *rss = 0;
+  char buf[1024];
+  const char* s;
+  long val;
+  int rc;
+  int i;
+  struct sysinfo si;
+
+  /* rss: 24th element */
+  rc = uv__slurp("/proc/self/stat", buf, sizeof(buf));
+  if (rc < 0)
+    return rc;
+
+  /* find the last ')' */
+  s = strrchr(buf, ')');
+  if (s == NULL)
+    goto err;
+
+  for (i = 1; i <= 22; i++) {
+    s = strchr(s + 1, ' ');
+    if (s == NULL)
+      goto err;
+  }
+
+  errno = 0;
+  val = strtol(s, NULL, 10);
+  if (val < 0 || errno != 0)
+    goto err;
+
+  do
+    rc = sysinfo(&si);
+  while (rc == -1 && errno == EINTR);
+  if (rc == -1)
+    return UV__ERR(errno);
+
+  *rss = val * si.mem_unit;
   return 0;
+
+err:
+  return UV_EINVAL;
 }
 
 int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
@@ -51,3 +87,7 @@ int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
 uint64_t uv_get_constrained_memory(void) {
   return 0;  /* Memory constraints are unknown. */
 }
+
+uint64_t uv_get_available_memory(void) {
+  return uv_get_free_memory();
+}

src/unix/darwin-proctitle.c

@@ -33,25 +33,9 @@
 #include "darwin-stub.h"
 #endif
 
-
-static int uv__pthread_setname_np(const char* name) {
-  char namebuf[64];  /* MAXTHREADNAMESIZE */
-  int err;
-
-  strncpy(namebuf, name, sizeof(namebuf) - 1);
-  namebuf[sizeof(namebuf) - 1] = '\0';
-
-  err = pthread_setname_np(namebuf);
-  if (err)
-    return UV__ERR(err);
-
-  return 0;
-}
-
-
 int uv__set_process_title(const char* title) {
 #if TARGET_OS_IPHONE
-  return uv__pthread_setname_np(title);
+  return uv__thread_setname(title);
 #else
   CFStringRef (*pCFStringCreateWithCString)(CFAllocatorRef,
                                             const char*,
@@ -177,7 +161,7 @@ int uv__set_process_title(const char* title) {
     goto out;
   }
 
-  uv__pthread_setname_np(title);  /* Don't care if it fails. */
+  uv__thread_setname(title);  /* Don't care if it fails. */
   err = 0;
 
 out:

src/unix/darwin-stub.h

@@ -27,7 +27,6 @@
 struct CFArrayCallBacks;
 struct CFRunLoopSourceContext;
 struct FSEventStreamContext;
-struct CFRange;
 
 typedef double CFAbsoluteTime;
 typedef double CFTimeInterval;
@@ -43,23 +42,13 @@ typedef unsigned CFStringEncoding;
 typedef void* CFAllocatorRef;
 typedef void* CFArrayRef;
 typedef void* CFBundleRef;
-typedef void* CFDataRef;
 typedef void* CFDictionaryRef;
-typedef void* CFMutableDictionaryRef;
-typedef struct CFRange CFRange;
 typedef void* CFRunLoopRef;
 typedef void* CFRunLoopSourceRef;
 typedef void* CFStringRef;
 typedef void* CFTypeRef;
 typedef void* FSEventStreamRef;
 
-typedef uint32_t IOOptionBits;
-typedef unsigned int io_iterator_t;
-typedef unsigned int io_object_t;
-typedef unsigned int io_service_t;
-typedef unsigned int io_registry_entry_t;
-
-
 typedef void (*FSEventStreamCallback)(const FSEventStreamRef,
                                       void*,
                                       size_t,
@@ -80,11 +69,6 @@ struct FSEventStreamContext {
   void* pad[3];
 };
 
-struct CFRange {
-  CFIndex location;
-  CFIndex length;
-};
-
 static const CFStringEncoding kCFStringEncodingUTF8 = 0x8000100;
 static const OSStatus noErr = 0;