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authorAustin Foxley <austinf@cetoncorp.com>2009-10-17 12:26:24 -0700
committerAustin Foxley <austinf@cetoncorp.com>2009-10-17 12:26:24 -0700
commitc68d0fa2d88fc2134a38d99e7e944828384a7671 (patch)
tree6596943bd1c77f18d6e49d4153ddd3f3d67b49f5 /libpthread/nptl/pthread_barrier_init.c
parent9a03e98a3b418f33c347a6023e9320f3a42cb9e4 (diff)
downloaduClibc-alpine-c68d0fa2d88fc2134a38d99e7e944828384a7671.tar.bz2
uClibc-alpine-c68d0fa2d88fc2134a38d99e7e944828384a7671.tar.xz
libpthread/nptl: core of the "Native Posix Threading Library" for uClibc
targetting arm,sh,i386,mips,sparc for now Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libpthread/nptl/pthread_barrier_init.c')
-rw-r--r--libpthread/nptl/pthread_barrier_init.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/libpthread/nptl/pthread_barrier_init.c b/libpthread/nptl/pthread_barrier_init.c
new file mode 100644
index 000000000..19e82fa38
--- /dev/null
+++ b/libpthread/nptl/pthread_barrier_init.c
@@ -0,0 +1,57 @@
+/* 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_barrier_init (barrier, attr, count)
+ pthread_barrier_t *barrier;
+ const pthread_barrierattr_t *attr;
+ unsigned int count;
+{
+ struct pthread_barrier *ibarrier;
+
+ if (__builtin_expect (count == 0, 0))
+ return EINVAL;
+
+ if (attr != NULL)
+ {
+ struct pthread_barrierattr *iattr;
+
+ iattr = (struct pthread_barrierattr *) attr;
+
+ if (iattr->pshared != PTHREAD_PROCESS_PRIVATE
+ && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0))
+ /* Invalid attribute. */
+ return EINVAL;
+ }
+
+ ibarrier = (struct pthread_barrier *) barrier;
+
+ /* Initialize the individual fields. */
+ ibarrier->lock = LLL_LOCK_INITIALIZER;
+ ibarrier->left = count;
+ ibarrier->init_count = count;
+ ibarrier->curr_event = 0;
+
+ return 0;
+}