glibc/sysdeps/pthread/timer_delete.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

69 lines
2.0 KiB
C

/* Copyright (C) 2000-2021 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 Lesser General Public License as
published by the Free Software Foundation; either version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, see <https://www.gnu.org/licenses/>. */
#include <assert.h>
#include <errno.h>
#include <pthread.h>
#include <time.h>
#include "posix-timer.h"
/* Delete timer TIMERID. */
int
timer_delete (timer_t timerid)
{
struct timer_node *timer;
int retval = -1;
pthread_mutex_lock (&__timer_mutex);
timer = timer_id2ptr (timerid);
if (! timer_valid (timer))
/* Invalid timer ID or the timer is not in use. */
__set_errno (EINVAL);
else
{
if (timer->armed && timer->thread != NULL)
{
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. */
timer->inuse = TIMER_DELETED;
list_unlink_ip (&timer->links);
timer_delref (timer);
retval = 0;
}
pthread_mutex_unlock (&__timer_mutex);
return retval;
}