This mimicks what the unix implementation does: call idle handles on
every loop iteration. The guarantee that it runs on every loop iteration
makes it easier to predict and opens up more use cases.
Note that the name uv_idle is now a bit of a misnomer. There is
actually no guarantee that libuv completely processed all i/o
when an iteration ends. The windows implementation at least limits
the amount of callbacks processed in a single iteration to avoid some
handles getting a disproportionate amount of cpu attention.
Clang warns about using `inline`, which is not technically allowed in
C89 mode (libuv compiles with `-std=c89`). It's probably best to leave
it to the compiler to do the inlining anyway.
Use signaling mechanism for loop termination, because CFRunLoopStop() is
most likely not a thread-safe function and invoking it from other thread
may sometimes result in a "dead-lock".
fix#799
* Fix a potential issue introduced with 415f4d3, namely that uv_spawn
can fail when the current process is under job control. This would
happen on Windows versions that don't support nested jobs (versions
prior to Windows 8 / Server 2012).
* Change the `uv__init_global_job_handle` function signature to match
what `uv_once` expects.
* Add a bunch of comments that clarify how we're using job control,
and how we're dealing with job control that might be established by
our parent process.
Changes since version 0.11.2:
* unix: clean up uv_accept() (Ben Noordhuis)
* unix: remove errno preserving code (Ben Noordhuis)
* darwin: fix ios build, don't require ApplicationServices (Ben
Noordhuis)
* windows: kill child processes when the parent dies (Bert Belder)
* build: set soname in shared library (Ben Noordhuis)
* build: make `make test` link against .a again (Ben Noordhuis)
* build: only set soname on shared object builds (Timothy J. Fontaine)
* build: convert predefined $PLATFORM to lower case (Elliot Saba)
* test: fix process_title failing on linux (Miroslav Bajtoš)
* test, sunos: disable process_title test (Miroslav Bajtoš)
* test: add error logging to tty unit test (Miroslav Bajtoš)
Remove the errno preserving code. Libuv only implemented it in a
haphazard way and there seems to be a general consensus that no one
really cares anyway. Therefore, remove it.
Changes since version 0.11.1:
* darwin: look up file path with F_GETPATH (Ben Noordhuis)
* unix, windows: add uv_has_ref() function (Saúl Ibarra Corretgé)
* build: avoid double / in paths for dtrace (Timothy J. Fontaine)
* unix: remove src/unix/cygwin.c (Ben Noordhuis)
* windows: deal with the fact that GetTickCount might lag (Bert Belder)
* unix: silence STATIC_ASSERT compiler warnings (Ben Noordhuis)
* linux: don't use fopen() in uv_resident_set_memory() (Ben Noordhuis)
Fix a potential use-after-free bug where the uv__io watcher struct is
referenced after being disabled by its callback function. The stress
is on 'potential' because in practice the watcher's memory is not
released until the next tick of the event loop.
Rename it to darwin-getproctitle.c, it doesn't need an Objective-C
compiler. Fix up -Wpedantic warnings about void to function pointer
casts and include <ApplicationServices/ApplicationServices.h> to get
the GetCurrentProcess() function prototype.
On Linux, the accept() and accept4() system calls checks for EMFILE
before checking for EAGAIN. Refine our EMFILE error handling tactic
to deal with that. Here is what used to happen:
1. The event loop calls accept() and sees EMFILE.
2. Libuv switches to EMFILE error handling mode. It closes a stashed
file descriptor and calls accept() again.
3. The accept() system call fails with EAGAIN.
4. Libuv reopens the stashed file descriptor (reaching RLIMIT_NOFILE
again) and returns control to the regular event loop.
5. The regular event loop calls accept(), sees EMFILE and jumps to
step 2 again. Effectively an infinite loop.
Avoid that by not calling accept() again when we've seen EAGAIN.
Fixesjoyent/node#5389.
After latest twiddling, `stream->io_watcher.fd` doesn't contain a real
stream's file descriptior anymore. The one from `select_state` should be
used instead.
Zero-initialize `select_state->event` field.
RSS is a reflection of the number of pages that a process has mapped.
glibc implements fopen() in terms of mmap() which means that trying
to read the number of mapped pages changes it. Switch to open().
Fix the following two warnings:
src/unix/core.c:74:1: warning: ISO C90 forbids array
'static_assert_failed' whose size can't be evaluated [-Wvla]
src/unix/core.c:76:1: warning: ISO C90 forbids array
'static_assert_failed' whose size can't be evaluated [-Wvla]
We use GetQueuedCompletionStatus(Ex) to sleep the thread until the next
timer expires (provided that no other events happen before that).
However after waking up from a sleep the GetTickCount() return value may
not immediately reflect that some time has passed. This happens because
gqcs can sometimes sleep for periods shorter than the GetTickCount clock
resulution. This patch changes time tracking so the amount of time
waited by gqcs is taken into account.
This has the following advantages:
* Excessive loop iterations are avoided.
* Small timeouts are fired more precisely.
* The `loop-stop` test that used to be flaky on Windows now passes
consistently.
This is the first versioned release from the current unstable libuv
branch.
Changes since Node.js v0.11.0:
* all platforms: nanosecond resolution support for uv_fs_[fl]stat
(Timothy J. Fontaine)
* all platforms: add netmask to uv_interface_address (Ben Kelly)
* unix: make sure the `status` parameter passed to the `uv_getaddrinfo`
is 0 or -1 (Ben Noordhuis)
* unix: limit the number of iovecs written in a single `writev` syscall
to IOV_MAX (Fedor Indutny)
* unix: add dtrace probes for tick-start and tick-stop (Timothy J.
Fontaine)
* mingw-w64: don't call _set_invalid_parameter_handler (Nils Maier)
* windows: fix memory leak in fs__sendfile (Shannen Saez)
* windows: fix edge case bugs in uv_cpu_info (Bert Belder)
* include: no longer ship with / include ngx-queue.h (Ben Noordhuis)
* include: remove UV_VERSION_* macros from uv.h (Ben Noordhuis)
* documentation updates (Kristian Evensen, Ben Kelly, Ben Noordhuis)
* build: fix dtrace-enabled builds (Ben Noordhuis, Timothy J. Fontaine)
* build: gyp disable thin archives (Timothy J. Fontaine)
* build: add support for Visual Studio 2012 (Nicholas Vavilov)
