diff options
Diffstat (limited to 'libpthread/sysdeps/generic/pt-cond-timedwait.c')
-rw-r--r-- | libpthread/sysdeps/generic/pt-cond-timedwait.c | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/libpthread/sysdeps/generic/pt-cond-timedwait.c b/libpthread/sysdeps/generic/pt-cond-timedwait.c deleted file mode 100644 index c10bdb30..00000000 --- a/libpthread/sysdeps/generic/pt-cond-timedwait.c +++ /dev/null @@ -1,106 +0,0 @@ -/* Wait on a condition. Generic version. - Copyright (C) 2000, 2002, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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 <pthread.h> - -#include <pt-internal.h> - -extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime); - -int -pthread_cond_timedwait (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - return __pthread_cond_timedwait_internal (cond, mutex, abstime); -} - -/* Block on condition variable COND until ABSTIME. As a GNU - extension, if ABSTIME is NULL, then wait forever. MUTEX should be - held by the calling thread. On return, MUTEX will be held by the - calling thread. */ -int -__pthread_cond_timedwait_internal (pthread_cond_t *cond, - pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - error_t err; - int canceltype; - - void cleanup (void *arg) - { - struct __pthread *self = _pthread_self (); - - __pthread_spin_lock (&cond->__lock); - if (self->prevp) - __pthread_dequeue (self); - __pthread_spin_unlock (&cond->__lock); - - pthread_setcanceltype (canceltype, &canceltype); - __pthread_mutex_lock (mutex); - } - - if (abstime && (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000)) - return EINVAL; - - struct __pthread *self = _pthread_self (); - - /* Add ourselves to the list of waiters. */ - __pthread_spin_lock (&cond->__lock); - __pthread_enqueue (&cond->__queue, self); - __pthread_spin_unlock (&cond->__lock); - - __pthread_mutex_unlock (mutex); - - /* Enter async cancelation mode. If cancelation is disabled, then - this does not change anything which is exactly what we want. */ - pthread_cleanup_push (cleanup, 0); - pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &canceltype); - - if (abstime) - { - err = __pthread_timedblock (self, abstime); - if (err) - /* We timed out. We may need to disconnect ourself from the - waiter queue. - - FIXME: What do we do if we get a wakeup message before we - disconnect ourself? It may remain until the next time we - block. */ - { - assert (err == ETIMEDOUT); - - __pthread_spin_lock (&mutex->__lock); - if (self->prevp) - __pthread_dequeue (self); - __pthread_spin_unlock (&mutex->__lock); - } - } - else - { - err = 0; - __pthread_block (self); - } - - pthread_cleanup_pop (1); - - return err; -} |