path: root/thread_win32.c
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authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-06-27 00:30:41 (GMT)
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2011-06-27 00:30:41 (GMT)
commitd1d5d5e79845c292c6118884fa66729954daad01 (patch)
tree6342d8b459610882aeb8a57aec34476b225ca904 /thread_win32.c
parent8ce62003a0046374bc696cbf4b3c46e9283a85b1 (diff)
* thread_pthread.c: Stop polling in the timer thread when there are
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. git-svn-id: svn+ssh:// b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'thread_win32.c')
1 files changed, 6 insertions, 0 deletions
diff --git a/thread_win32.c b/thread_win32.c
index 172c942..5c20650 100644
--- a/thread_win32.c
+++ b/thread_win32.c
@@ -725,6 +725,12 @@ timer_thread_func(void *dummy)
return 0;
+ /* do nothing */
static void