summaryrefslogtreecommitdiff
path: root/libpthread/sysdeps/generic/pt-rwlock-trywrlock.c
diff options
context:
space:
mode:
Diffstat (limited to 'libpthread/sysdeps/generic/pt-rwlock-trywrlock.c')
-rw-r--r--libpthread/sysdeps/generic/pt-rwlock-trywrlock.c46
1 files changed, 0 insertions, 46 deletions
diff --git a/libpthread/sysdeps/generic/pt-rwlock-trywrlock.c b/libpthread/sysdeps/generic/pt-rwlock-trywrlock.c
deleted file mode 100644
index 6b9c5b56..00000000
--- a/libpthread/sysdeps/generic/pt-rwlock-trywrlock.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Try to acquire a rwlock for writing. Generic version.
- Copyright (C) 2002 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 <assert.h>
-
-#include <pt-internal.h>
-
-/* Try to acquire RWLOCK for writing. */
-int
-pthread_rwlock_trywrlock (struct __pthread_rwlock *rwlock)
-{
- __pthread_spin_lock (&rwlock->__lock);
- if (__pthread_spin_trylock (&rwlock->__held) == 0)
- /* Successfully acquired the lock. */
- {
- assert (rwlock->readerqueue == 0);
- assert (rwlock->writerqueue == 0);
- assert (rwlock->readers == 0);
-
- __pthread_spin_unlock (&rwlock->__lock);
- return 0;
- }
-
- /* The lock is busy. */
-
- __pthread_spin_unlock (&rwlock->__lock);
-
- return EBUSY;
-}