reader preference.
* sysdeps/pthread/pthread_rwlock_timedwrlock.c
(pthread_rwlock_timedwrlock): Likewise.
* sysdeps/pthread/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock):
Likewise.
+2006-08-30 Ulrich Drepper <drepper@redhat.com>
+
+ * pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Respect
+ reader preference.
+ * sysdeps/pthread/pthread_rwlock_timedwrlock.c
+ (pthread_rwlock_timedwrlock): Likewise.
+ * sysdeps/pthread/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock):
+ Likewise.
+
2006-08-25 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/libc_pthread_init.c (freeres_libpthread):
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
lll_mutex_lock (rwlock->__data.__lock);
- if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
+ if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+ /* Respect the preference. */
+ && (rwlock->__data.__flags != 0
+ || rwlock->__data.__nr_readers_queued == 0))
{
rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);
result = 0;
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
int err;
/* Get the rwlock if there is no writer and no reader. */
- if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
+ if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+ && (rwlock->__data.__flags != 0
+ || rwlock->__data.__nr_readers_queued == 0))
{
/* Mark self as writer. */
rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);
-/* Copyright (C) 2003 Free Software Foundation, Inc.
+/* Copyright (C) 2003, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003.
while (1)
{
/* Get the rwlock if there is no writer and no reader. */
- if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0)
+ if (rwlock->__data.__writer == 0 && rwlock->__data.__nr_readers == 0
+ && (rwlock->__data.__flags != 0
+ || rwlock->__data.__nr_readers_queued == 0))
{
/* Mark self as writer. */
rwlock->__data.__writer = THREAD_GETMEM (THREAD_SELF, tid);