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Update.

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2000-06-10  Kaz Kylheku  <kaz@ashi.footprints.net>

	* sysdeps/pthread/timer_create.c: Thread matching now done on
	clock type as well as thread attributes.
	There are individual global signal-delivering threads for
	different clock types.
	* sysdeps/pthread/posix-timer.h: Likewise.
	* sysdeps/pthread/timer_routines.c: Likewise.

	* sysdeps/pthread/timer_routines.c: Thread allocation and
	deallocation function now remembers to put thread on active
	list and remove from active list. 
	Thus now the feature of binding multiple timers
	to a single thread actually works.
This commit is contained in:
Ulrich Drepper
2000-06-10 08:28:06 +00:00
parent 15109bd4aa
commit 45dc1187ee
4 changed files with 89 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files
linuxthreads/sysdeps/pthread/timer_create.c
+22 -5
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@@ -89,16 +89,33 @@ timer_create (clock_id, evp, timerid)
case SIGEV_SIGNAL:
/* We have a global thread for delivering timed signals.
If it is not running, try to start it up. */
if (! __timer_signal_thread.exists)
switch (clock_id)
{
if (__builtin_expect (__timer_thread_start (&__timer_signal_thread),
case CLOCK_REALTIME:
default:
thread = &__timer_signal_thread_rclk;
break;
#ifdef _POSIX_CPUTIME
case CLOCK_PROCESS_CPUTIME_ID:
thread = &__timer_signal_thread_pclk;
break;
#endif
#ifdef _POSIX_THREAD_CPUTIME
case CLOCK_THREAD_CPUTIME_ID:
thread = &__timer_signal_thread_tclk;
break;
#endif
}
if (! thread->exists)
{
if (__builtin_expect (__timer_thread_start (thread),
1) < 0)
{
errno = EAGAIN;
goto unlock_bail;
}
}
thread = &__timer_signal_thread;
break;
case SIGEV_THREAD:
@@ -112,11 +129,11 @@ timer_create (clock_id, evp, timerid)
pthread_attr_setdetachstate (&newtimer->attr, PTHREAD_CREATE_DETACHED);
/* Try to find existing thread having the right attributes. */
thread = __timer_thread_find_matching (&newtimer->attr);
thread = __timer_thread_find_matching (&newtimer->attr, clock_id);
/* If no existing thread has these attributes, try to allocate one. */
if (thread == NULL)
thread = __timer_thread_alloc (&newtimer->attr);
thread = __timer_thread_alloc (&newtimer->attr, clock_id);
/* Out of luck; no threads are available. */
if (__builtin_expect (thread == NULL, 0))