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authorAustin Foxley <austinf@cetoncorp.com>2010-02-17 16:52:15 -0800
committerAustin Foxley <austinf@cetoncorp.com>2010-02-17 16:55:05 -0800
commit44f3864ffcf205930a0cf7e553ab91f2cb01d02d (patch)
tree59c592810e0ece55af323938d3a5887e4b66206d /libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c
parentf09e8e4ba639d236322e10130fbc19845f61d59a (diff)
move pthread_barrier_{init,destroy} to sysdeps/pthread
for archs that implement their own like sparc and x86_64 Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c')
-rw-r--r--libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c b/libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c
new file mode 100644
index 000000000..2afe5b3c5
--- /dev/null
+++ b/libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2002, 2007 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_barrier_destroy (
+ pthread_barrier_t *barrier)
+{
+ struct pthread_barrier *ibarrier;
+ int result = EBUSY;
+
+ ibarrier = (struct pthread_barrier *) barrier;
+
+ lll_lock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG);
+
+ if (__builtin_expect (ibarrier->left == ibarrier->init_count, 1))
+ /* The barrier is not used anymore. */
+ result = 0;
+ else
+ /* Still used, return with an error. */
+ lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG);
+
+ return result;
+}