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Diffstat (limited to 'nptl/pthread_rwlock_unlock.c')
-rw-r--r-- | nptl/pthread_rwlock_unlock.c | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/nptl/pthread_rwlock_unlock.c b/nptl/pthread_rwlock_unlock.c deleted file mode 100644 index ef46e88263..0000000000 --- a/nptl/pthread_rwlock_unlock.c +++ /dev/null @@ -1,48 +0,0 @@ -/* Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <sysdep.h> -#include <futex-internal.h> -#include <pthread.h> -#include <pthreadP.h> -#include <stap-probe.h> - -#include "pthread_rwlock_common.c" - -/* See pthread_rwlock_common.c for an overview. */ -int -__pthread_rwlock_unlock (pthread_rwlock_t *rwlock) -{ - LIBC_PROBE (rwlock_unlock, 1, rwlock); - - /* We distinguish between having acquired a read vs. a write lock by looking - at the writer TID. If it's equal to our TID, we must be the writer - because nobody else can have stored this value. Also, if we are a - reader, we will read from the wrunlock store with value 0 by the most - recent writer because that writer happens-before us. */ - if (atomic_load_relaxed (&rwlock->__data.__cur_writer) - == THREAD_GETMEM (THREAD_SELF, tid)) - __pthread_rwlock_wrunlock (rwlock); - else - __pthread_rwlock_rdunlock (rwlock); - return 0; -} - -weak_alias (__pthread_rwlock_unlock, pthread_rwlock_unlock) -hidden_def (__pthread_rwlock_unlock) |