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libuv/Makefile.am
Jason Madden fd7ce57f2b unix: make loops and watchers usable after fork() 
Added the uv_loop_fork() API that must be called in a child process to
continue using an existing loop. Internally this calls a uv__io_fork
function for each supported platform, similar to the way
uv__platform_loop_init works.

After this call, existing and new IO, async and signal watchers will
contiue working as before on all platforms, as will the
threadpool (although any threads it was using are of course gone).

On Linux and BSDs that use kqueue, existing and new fsevent watchers
will also continue to work as expected. On OS X, though, directory
fsevents will not be able to use the optimized CoreFoundation path if
they had already been used in the parent process, instead falling back
to the kqueue path used on other BSDs.

Existing fsevent watchers will not function on AIX or SunOS. This
could be relatively easily fixed by someone with AIX knowledge in the
future, but SunOS will require some additional work to keep track if
the watchers.

A new test file, test/test-fork.c, was added to contain fork-related
tests to verify functionality in the child process.

PR-URL: https://github.com/libuv/libuv/pull/846
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>
2017-03-21 12:23:44 +01:00

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# 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.
ACLOCAL_AMFLAGS = -I m4
AM_CPPFLAGS = -I$(top_srcdir)/include \
-I$(top_srcdir)/src
include_HEADERS=include/uv.h include/uv-errno.h include/uv-threadpool.h include/uv-version.h
CLEANFILES =
lib_LTLIBRARIES = libuv.la
libuv_la_CFLAGS = @CFLAGS@
libuv_la_LDFLAGS = -no-undefined -version-info 1:0:0
libuv_la_SOURCES = src/fs-poll.c \
src/heap-inl.h \
src/inet.c \
src/queue.h \
src/threadpool.c \
src/uv-common.c \
src/uv-common.h \
src/version.c
if SUNOS
# Can't be turned into a CC_CHECK_CFLAGS in configure.ac, it makes compilers
# on other platforms complain that the argument is unused during compilation.
libuv_la_CFLAGS += -pthreads
endif
if WINNT
include_HEADERS += include/uv-win.h include/tree.h
AM_CPPFLAGS += -I$(top_srcdir)/src/win \
-DWIN32_LEAN_AND_MEAN \
-D_WIN32_WINNT=0x0600
libuv_la_SOURCES += src/win/async.c \
src/win/atomicops-inl.h \
src/win/core.c \
src/win/detect-wakeup.c \
src/win/dl.c \
src/win/error.c \
src/win/fs-event.c \
src/win/fs.c \
src/win/getaddrinfo.c \
src/win/getnameinfo.c \
src/win/handle.c \
src/win/handle-inl.h \
src/win/internal.h \
src/win/loop-watcher.c \
src/win/pipe.c \
src/win/poll.c \
src/win/process-stdio.c \
src/win/process.c \
src/win/req.c \
src/win/req-inl.h \
src/win/signal.c \
src/win/stream.c \
src/win/stream-inl.h \
src/win/tcp.c \
src/win/thread.c \
src/win/timer.c \
src/win/tty.c \
src/win/udp.c \
src/win/util.c \
src/win/winapi.c \
src/win/winapi.h \
src/win/winsock.c \
src/win/winsock.h
else # WINNT
include_HEADERS += include/uv-unix.h
AM_CPPFLAGS += -I$(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 \
src/unix/getaddrinfo.c \
src/unix/getnameinfo.c \
src/unix/internal.h \
src/unix/loop-watcher.c \
src/unix/loop.c \
src/unix/pipe.c \
src/unix/poll.c \
src/unix/process.c \
src/unix/signal.c \
src/unix/spinlock.h \
src/unix/stream.c \
src/unix/tcp.c \
src/unix/thread.c \
src/unix/timer.c \
src/unix/tty.c \
src/unix/udp.c
endif # WINNT
EXTRA_DIST = test/fixtures/empty_file \
test/fixtures/load_error.node \
include \
test \
docs \
img \
samples \
android-configure \
CONTRIBUTING.md \
LICENSE \
README.md \
checksparse.sh \
vcbuild.bat \
Makefile.mingw \
common.gypi \
gyp_uv.py \
uv.gyp
TESTS = test/run-tests
check_PROGRAMS = test/run-tests
if OS390
test_run_tests_CFLAGS =
else
test_run_tests_CFLAGS = -Wno-long-long
endif
if SUNOS
# Can't be turned into a CC_CHECK_CFLAGS in configure.ac, it makes compilers
# on other platforms complain that the argument is unused during compilation.
test_run_tests_CFLAGS += -pthreads
endif
test_run_tests_LDFLAGS =
test_run_tests_SOURCES = test/blackhole-server.c \
test/dns-server.c \
test/echo-server.c \
test/run-tests.c \
test/runner.c \
test/runner.h \
test/task.h \
test/test-active.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 \
test/test-condvar.c \
test/test-connection-fail.c \
test/test-cwd-and-chdir.c \
test/test-default-loop-close.c \
test/test-delayed-accept.c \
test/test-dlerror.c \
test/test-eintr-handling.c \
test/test-embed.c \
test/test-emfile.c \
test/test-env-vars.c \
test/test-error.c \
test/test-fail-always.c \
test/test-fs-event.c \
test/test-fs-poll.c \
test/test-fs.c \
test/test-fork.c \
test/test-get-currentexe.c \
test/test-get-loadavg.c \
test/test-get-memory.c \
test/test-get-passwd.c \
test/test-getaddrinfo.c \
test/test-getnameinfo.c \
test/test-getsockname.c \
test/test-handle-fileno.c \
test/test-homedir.c \
test/test-hrtime.c \
test/test-idle.c \
test/test-ip4-addr.c \
test/test-ip6-addr.c \
test/test-ipc-send-recv.c \
test/test-ipc.c \
test/test-list.h \
test/test-loop-handles.c \
test/test-loop-alive.c \
test/test-loop-close.c \
test/test-loop-stop.c \
test/test-loop-time.c \
test/test-loop-configure.c \
test/test-multiple-listen.c \
test/test-mutexes.c \
test/test-osx-select.c \
test/test-pass-always.c \
test/test-ping-pong.c \
test/test-pipe-bind-error.c \
test/test-pipe-connect-error.c \
test/test-pipe-connect-multiple.c \
test/test-pipe-connect-prepare.c \
test/test-pipe-getsockname.c \
test/test-pipe-pending-instances.c \
test/test-pipe-sendmsg.c \
test/test-pipe-server-close.c \
test/test-pipe-close-stdout-read-stdin.c \
test/test-pipe-set-non-blocking.c \
test/test-platform-output.c \
test/test-poll-close.c \
test/test-poll-close-doesnt-corrupt-stack.c \
test/test-poll-closesocket.c \
test/test-poll.c \
test/test-process-title.c \
test/test-queue-foreach-delete.c \
test/test-ref.c \
test/test-run-nowait.c \
test/test-run-once.c \
test/test-semaphore.c \
test/test-shutdown-close.c \
test/test-shutdown-eof.c \
test/test-shutdown-twice.c \
test/test-signal-multiple-loops.c \
test/test-signal.c \
test/test-socket-buffer-size.c \
test/test-spawn.c \
test/test-stdio-over-pipes.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.c \
test/test-tcp-create-socket-early.c \
test/test-tcp-connect-error-after-write.c \
test/test-tcp-connect-error.c \
test/test-tcp-connect-timeout.c \
test/test-tcp-connect6-error.c \
test/test-tcp-flags.c \
test/test-tcp-open.c \
test/test-tcp-read-stop.c \
test/test-tcp-shutdown-after-write.c \
test/test-tcp-unexpected-read.c \
test/test-tcp-oob.c \
test/test-tcp-write-to-half-open-connection.c \
test/test-tcp-write-after-connect.c \
test/test-tcp-writealot.c \
test/test-tcp-write-fail.c \
test/test-tcp-try-write.c \
test/test-tcp-write-queue-order.c \
test/test-thread-equal.c \
test/test-thread.c \
test/test-threadpool-cancel.c \
test/test-threadpool.c \
test/test-timer-again.c \
test/test-timer-from-check.c \
test/test-timer.c \
test/test-tmpdir.c \
test/test-tty.c \
test/test-udp-alloc-cb-fail.c \
test/test-udp-bind.c \
test/test-udp-create-socket-early.c \
test/test-udp-dgram-too-big.c \
test/test-udp-ipv6.c \
test/test-udp-multicast-interface.c \
test/test-udp-multicast-interface6.c \
test/test-udp-multicast-join.c \
test/test-udp-multicast-join6.c \
test/test-udp-multicast-ttl.c \
test/test-udp-open.c \
test/test-udp-options.c \
test/test-udp-send-and-recv.c \
test/test-udp-send-immediate.c \
test/test-udp-send-unreachable.c \
test/test-udp-try-send.c \
test/test-walk-handles.c \
test/test-watcher-cross-stop.c
test_run_tests_LDADD = libuv.la
if WINNT
test_run_tests_SOURCES += test/runner-win.c \
test/runner-win.h
else
test_run_tests_SOURCES += test/runner-unix.c \
test/runner-unix.h
endif
if AIX
test_run_tests_CFLAGS += -D_ALL_SOURCE -D_XOPEN_SOURCE=500 -D_LINUX_SOURCE_COMPAT
endif
if LINUX
test_run_tests_CFLAGS += -D_GNU_SOURCE
endif
if SUNOS
test_run_tests_CFLAGS += -D__EXTENSIONS__ -D_XOPEN_SOURCE=500
endif
if OS390
test_run_tests_CFLAGS += -D_UNIX03_THREADS \
-D_UNIX03_SOURCE \
-D_OPEN_SYS_IF_EXT=1 \
-D_OPEN_SYS_SOCK_IPV6 \
-D_OPEN_MSGQ_EXT \
-D_XOPEN_SOURCE_EXTENDED \
-D_ALL_SOURCE \
-D_LARGE_TIME_API \
-D_OPEN_SYS_FILE_EXT \
-DPATH_MAX=255 \
-qCHARS=signed \
-qXPLINK \
-qFLOAT=IEEE
endif
if AIX
libuv_la_CFLAGS += -D_ALL_SOURCE \
-D_XOPEN_SOURCE=500 \
-D_LINUX_SOURCE_COMPAT \
-D_THREAD_SAFE \
-DHAVE_SYS_AHAFS_EVPRODS_H
include_HEADERS += include/uv-aix.h
libuv_la_SOURCES += src/unix/aix.c
endif
if ANDROID
include_HEADERS += include/android-ifaddrs.h \
include/pthread-barrier.h
libuv_la_SOURCES += src/unix/android-ifaddrs.c \
src/unix/pthread-fixes.c \
src/unix/pthread-barrier.c
endif
if DARWIN
include_HEADERS += include/uv-darwin.h \
include/pthread-barrier.h
libuv_la_CFLAGS += -D_DARWIN_USE_64_BIT_INODE=1
libuv_la_CFLAGS += -D_DARWIN_UNLIMITED_SELECT=1
libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
src/unix/darwin.c \
src/unix/darwin-proctitle.c \
src/unix/fsevents.c \
src/unix/kqueue.c \
src/unix/proctitle.c \
src/unix/pthread-barrier.c
test_run_tests_LDFLAGS += -lutil
endif
if DRAGONFLY
include_HEADERS += include/uv-bsd.h
libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
src/unix/freebsd.c \
src/unix/kqueue.c \
src/unix/posix-hrtime.c
test_run_tests_LDFLAGS += -lutil
endif
if FREEBSD
include_HEADERS += include/uv-bsd.h
libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
src/unix/freebsd.c \
src/unix/kqueue.c \
src/unix/posix-hrtime.c
test_run_tests_LDFLAGS += -lutil
endif
if LINUX
include_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 \
src/unix/proctitle.c
test_run_tests_LDFLAGS += -lutil
endif
if NETBSD
include_HEADERS += include/uv-bsd.h
libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
src/unix/kqueue.c \
src/unix/netbsd.c \
src/unix/posix-hrtime.c
test_run_tests_LDFLAGS += -lutil
endif
if OPENBSD
include_HEADERS += include/uv-bsd.h
libuv_la_SOURCES += src/unix/bsd-ifaddrs.c \
src/unix/kqueue.c \
src/unix/openbsd.c \
src/unix/posix-hrtime.c
test_run_tests_LDFLAGS += -lutil
endif
if SUNOS
include_HEADERS += include/uv-sunos.h
libuv_la_CFLAGS += -D__EXTENSIONS__ -D_XOPEN_SOURCE=500
libuv_la_SOURCES += src/unix/sunos.c
endif
if OS390
include_HEADERS += include/pthread-fixes.h include/pthread-barrier.h
libuv_la_CFLAGS += -D_UNIX03_THREADS \
-D_UNIX03_SOURCE \
-D_OPEN_SYS_IF_EXT=1 \
-D_OPEN_MSGQ_EXT \
-D_XOPEN_SOURCE_EXTENDED \
-D_ALL_SOURCE \
-D_LARGE_TIME_API \
-D_OPEN_SYS_SOCK_IPV6 \
-D_OPEN_SYS_FILE_EXT \
-DUV_PLATFORM_SEM_T=int \
-DPATH_MAX=255 \
-qCHARS=signed \
-qXPLINK \
-qFLOAT=IEEE
libuv_la_LDFLAGS += -qXPLINK
libuv_la_SOURCES += src/unix/pthread-fixes.c \
src/unix/pthread-barrier.c \
src/unix/os390.c \
src/unix/os390-syscalls.c \
src/unix/proctitle.c
endif
if HAVE_PKG_CONFIG
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = @PACKAGE_NAME@.pc
endif
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