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* thread_pthread.c (get_ts): add monotonic clock capability.

Browse source 
* thread_pthread.c (rb_thread_create_timer_thread): use monotonic
  clock if possible.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31453 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-05-06 16:56:06 +00:00
parent 17707b2d48
commit 54b50fbb9c
2 changed files with 28 additions and 3 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Sat May 7 01:54:21 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread_pthread.c (get_ts): add monotonic clock capability.
* thread_pthread.c (rb_thread_create_timer_thread): use monotonic
clock if possible.
Sat May 7 01:43:37 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com> Sat May 7 01:43:37 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread_pthread.h (rb_thread_cond_t): add clockid field. it's * thread_pthread.h (rb_thread_cond_t): add clockid field. it's

25
thread_pthread.c
View file

@ -920,10 +920,29 @@ static pthread_mutex_t timer_thread_lock = PTHREAD_MUTEX_INITIALIZER;
static struct timespec * static struct timespec *
get_ts(struct timespec *ts, unsigned long nsec) get_ts(struct timespec *ts, unsigned long nsec)
{ {
int ret;
struct timeval tv; struct timeval tv;
gettimeofday(&tv, 0);
#if USE_MONOTONIC_COND
if (timer_thread_cond.clockid == CLOCK_MONOTONIC) {
ret = clock_gettime(CLOCK_MONOTONIC, ts);
if (ret != 0)
rb_sys_fail("clock_gettime(CLOCK_MONOTONIC)");
goto out;
}
#endif
if (timer_thread_cond.clockid != CLOCK_REALTIME)
rb_bug("unsupported clockid %d", timer_thread_cond.clockid);
ret = gettimeofday(&tv, 0);
if (ret != 0)
rb_sys_fail(0);
ts->tv_sec = tv.tv_sec; ts->tv_sec = tv.tv_sec;
ts->tv_nsec = tv.tv_usec * 1000 + nsec; ts->tv_nsec = tv.tv_usec * 1000;
out:
ts->tv_nsec += nsec;
if (ts->tv_nsec >= PER_NANO) { if (ts->tv_nsec >= PER_NANO) {
ts->tv_sec++; ts->tv_sec++;
ts->tv_nsec -= PER_NANO; ts->tv_nsec -= PER_NANO;
@ -975,7 +994,7 @@ rb_thread_create_timer_thread(void)
int err; int err;
pthread_attr_init(&attr); pthread_attr_init(&attr);
native_cond_initialize(&timer_thread_cond, 0); native_cond_initialize(&timer_thread_cond, RB_CONDATTR_CLOCK_MONOTONIC);
#ifdef PTHREAD_STACK_MIN #ifdef PTHREAD_STACK_MIN
pthread_attr_setstacksize(&attr, pthread_attr_setstacksize(&attr,
PTHREAD_STACK_MIN + (THREAD_DEBUG ? BUFSIZ : 0)); PTHREAD_STACK_MIN + (THREAD_DEBUG ? BUFSIZ : 0));