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Diffstat (limited to 'linuxthreads/sysdeps/pthread/timer_delete.c')
-rw-r--r--linuxthreads/sysdeps/pthread/timer_delete.c69
1 files changed, 69 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/pthread/timer_delete.c b/linuxthreads/sysdeps/pthread/timer_delete.c
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index 0000000000..9e83ae1ab7
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+++ b/linuxthreads/sysdeps/pthread/timer_delete.c
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+/* Copyright (C) 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <assert.h>
+#include <errno.h>
+#include <pthread.h>
+#include <time.h>
+
+#include "posix-timer.h"
+
+
+/* Delete timer TIMERID. */
+int
+timer_delete (timerid)
+ timer_t timerid;
+{
+ struct timer_node *timer;
+ int retval = -1;
+
+ pthread_mutex_lock (&__timer_mutex);
+
+ timer = timer_id2ptr (timerid);
+ if (timer == NULL)
+ /* Invalid timer ID or the timer is not in use. */
+ errno = EINVAL;
+ else
+ {
+ if (timer->armed)
+ {
+ struct thread_node *thread = timer->thread;
+ assert (thread != NULL);
+
+ /* If thread is cancelled while waiting for handler to terminate,
+ the mutex is unlocked and timer_delete is aborted. */
+ pthread_cleanup_push (__timer_mutex_cancel_handler, &__timer_mutex);
+
+ /* If timer is currently being serviced, wait for it to finish. */
+ while (thread->current_timer == timer)
+ pthread_cond_wait (&thread->cond, &__timer_mutex);
+
+ pthread_cleanup_pop (0);
+ }
+
+ /* Remove timer from whatever queue it may be on and deallocate it. */
+ list_unlink (&timer->links);
+ __timer_dealloc (timer);
+ retval = 0;
+ }
+
+ pthread_mutex_unlock (&__timer_mutex);
+
+ return retval;
+}