RB_RESERVED_FD_P): added. This C API is to limit to access
fds which are used by RubyVM internal. In this version of
CRuby, return 1 if fd is communication pipe.
If your application needs to close all file descriptors to
preent resource leak, skip internal fds using this C API.
We also define a macro RB_RESERVED_FD_P(fd). So you can write
#ifndef RB_RESERVED_FD_P
#define RB_RESERVED_FD_P(fd) 0
#endif
for Ruby 1.9.2 or previous version to write compatible extensions.
See [ruby-core:37727]
* thread_win32.c (rb_reserved_fd_p): added (return 0 for any fds).
* io.c (rb_io_initialize): raise ArgumentError if given fd is reserved by Ruby.
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r32244. grep sources before changing the signature of a function.
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no waiting thread. If there are 2 or more runnable threads,
the timer thread does polling. Avoid polling makes power save
for several computers (0.2W per a Ruby process, when I measured).
If outside-event such as signal or Thread#kill was occuerred
when the timer thread does not do polling, then wake-up
the timer thread using communication-pipe (the timer thread
waits this communication-pipe with select(2)).
The discussion about this modification can be found from the post
[ruby-core:33456] and other related posts.
Note that Eric Wong and KOSAKI Motohiro give us the huge
contributions for this modification. Thanks.
* thread_pthread.c (rb_thread_wakeup_timer_thread): add a function.
This function wakes up the timer thread using communication-pipe.
* thread.c (rb_thread_stop_timer_thread): add a parameter which
specify closing communication-pipe or not.
* thread.c (rb_thread_terminate_all): do not stop timer thread here
(ruby_cleanup() terminate timer thread).
* signal.c: wake up timer thread using
rb_thread_wakeup_timer_thread() from signal handler.
* eval.c (ruby_cleanup): use rb_thread_stop_timer_thread(1).
* process.c: use rb_thread_stop_timer_thread(0)
(reuse communication-pipe).
* thread_win32.c (rb_thread_wakeup_timer_thread): add a dummy
function.
* vm_core.h: add and fix decl. of functions.
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cancelable.
* thread_win32.c (native_fd_select): new function to make select(2)
cancelable.
* thread_win32.c (rb_w32_check_interrupt): new function for checking
interrupt.
* win32/win32.c (rb_w32_select_with_thread): new function. cancelable
select(2).
* win32/win32.c (rb_w32_select): use above function internally.
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* thread_pthread.c: remove HAVE_GVL_YIELD macro.
* thread_win32.c (gvl_yield): new. this fallback logic was moved from
rb_thread_schedule_rec().
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* thread_win32.h (rb_thread_cond_struct): add prev field instead of last.
(ie cond_event_entry is now using double linked list instead of single)
* thread_win32.c (cond_event_entry): add prev field.
* thread_win32.c (__cond_timedwait): remove entry properly if timeout
was happen.
* thread_win32.c (native_cond_signal): change for double linked list.
* thread_win32.c (native_cond_broadcast): ditto.
* thread_win32.c (native_cond_initialize): ditto.
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* thread_pthread.c (native_cond_timeout): new internal api.
it calculate a proper time for argument of native_cond_timedwait().
* thread_win32.c (native_cond_timeout): ditto.
* thread_pthread.c (thread_timer): use native_cond_timeout()
instead of get_ts.
* thread.c (lock_func): ditto.
* thread_pthread.c (get_ts): removed. use native_cond_timeout().
* thread.c (init_lock_timeout): ditto.
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no longer an alias of pthread_cond_t.
* thread_pthread.c: adapt new rb_thread_cond_t type.
* thread.c (mutex_alloc): ditto.
* thread_win32.c (native_cond_initialize): ditto.
* configure.in: add check for pthread_cond_attr_setclock() and
clockid_t type.
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APIs to modularize GVL implementation.
* thread_pthread.c, thread_pthread.h: Two GVL implementations.
(1) Simple locking GVL which is same as existing GVL.
(2) Wake-up queued threads. The wake-up order is simple FIFO.
(We can make several queues to support exact priorities, however
this causes some issues such as priority inversion and so on.)
This impl. prevents spin-loop (*1) caused on SMP environemnts.
*1: Only one Ruby thread acqures GVL again and again.
Bug #2359 [ruby-core:26694]
* thread_win32.c, thread_win32.h: Using simple lock
not by CRITICAL_SECTION but by Mutex.
Bug #3890 [ruby-dev:42315]
* vm.c (ruby_vm_destruct): ditto.
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the result of the second getting will indicate the error of the
first FormatMessage() call.
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* configure.in (rb_cv_dynamic_alloca): check if extra source for
dynamic size alloca.
* missing/x86_64-chkstk.s (___chkstk): necessary for alloca of
amd64-mingw32msvc-gcc on Ubutu.
* thread_win32.c (ruby_alloca_chkstk): check stack overflow
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using the interrupt event in the thread termination.
see [ruby-core:27199].
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at fork to get rid of deadlock. based on the patch from Hongli
Lai in [ruby-core:26783]. [ruby-core:26361]
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using time slice. if you enable USE_NATIVE_THREAD_PRIORITY
macro, this mechanism is ignored. [ruby-dev:33124]
* thread_pthread.c, thread_win32.c: ditto.
* test/ruby/test_thread.rb: fix test parameter.
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r18239 because r18245 made the changes unnecessary.
* thread.c (rb_mutex_struct): define after including thread_{pthread,
win32}.c.
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rb_thread_cond_struct from .c to .h because rb_thread_cond_struct
is used in vm_core.h.
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ko1
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kosaki
nobu
wanabe
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