diff options
Diffstat (limited to 'libpthread/nptl/pthread_rwlock_tryrdlock.c')
| -rw-r--r-- | libpthread/nptl/pthread_rwlock_tryrdlock.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/libpthread/nptl/pthread_rwlock_tryrdlock.c b/libpthread/nptl/pthread_rwlock_tryrdlock.c deleted file mode 100644 index 446af0596..000000000 --- a/libpthread/nptl/pthread_rwlock_tryrdlock.c +++ /dev/null @@ -1,50 +0,0 @@ -/* Copyright (C) 2002 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. - - 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; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include <errno.h> -#include "pthreadP.h" -#include <lowlevellock.h> - - -int -__pthread_rwlock_tryrdlock (rwlock) - pthread_rwlock_t *rwlock; -{ - int result = EBUSY; - - lll_mutex_lock (rwlock->__data.__lock); - - if (rwlock->__data.__writer == 0 - && (rwlock->__data.__nr_writers_queued == 0 - || rwlock->__data.__flags == 0)) - { - if (__builtin_expect (++rwlock->__data.__nr_readers == 0, 0)) - { - --rwlock->__data.__nr_readers; - result = EAGAIN; - } - else - result = 0; - } - - lll_mutex_unlock (rwlock->__data.__lock); - - return result; -} -strong_alias (__pthread_rwlock_tryrdlock, pthread_rwlock_tryrdlock) |