Merge tag 'upstream/libpthread/20090404' into upstream-merged

1 files changed, 45 insertions, 0 deletions

diff --git a/libpthread/sysdeps/generic/pt-rwlock-init.c b/libpthread/sysdeps/generic/pt-rwlock-init.c
new file mode 100644
index 00000000..c9ff9b28
--- /dev/null
+++ b/libpthread/sysdeps/generic/pt-rwlock-init.c
@@ -0,0 +1,45 @@
+/* Initialize a rwlock.  Generic version.
+   Copyright (C) 2002, 2005, 2006 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 <string.h>
+#include <pt-internal.h>
+
+int
+_pthread_rwlock_init (pthread_rwlock_t *rwlock,
+		      const pthread_rwlockattr_t *attr)
+{
+  *rwlock = (pthread_rwlock_t) __PTHREAD_RWLOCK_INITIALIZER;
+
+  if (! attr
+      || memcmp (attr, &__pthread_default_rwlockattr, sizeof (*attr) == 0))
+    /* Use the default attributes.  */
+    return 0;
+
+  /* Non-default attributes.  */
+
+  rwlock->__attr = malloc (sizeof *attr);
+  if (! rwlock->__attr)
+    return ENOMEM;
+
+  *rwlock->__attr = *attr;
+  return 0;
+}
+
+strong_alias (_pthread_rwlock_init, pthread_rwlock_init);