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-rw-r--r--libpthread/nptl/pthread_mutexattr_setrobust.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/libpthread/nptl/pthread_mutexattr_setrobust.c b/libpthread/nptl/pthread_mutexattr_setrobust.c
new file mode 100644
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+++ b/libpthread/nptl/pthread_mutexattr_setrobust.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2005, 2010 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2005.
+
+ 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>
+
+
+int
+pthread_mutexattr_setrobust (
+ pthread_mutexattr_t *attr,
+ int robustness)
+{
+ if (robustness != PTHREAD_MUTEX_STALLED_NP
+ && __builtin_expect (robustness != PTHREAD_MUTEX_ROBUST_NP, 0))
+ return EINVAL;
+
+ struct pthread_mutexattr *iattr = (struct pthread_mutexattr *) attr;
+
+ /* We use bit 30 to signal whether the mutex is going to be
+ robust or not. */
+ if (robustness == PTHREAD_MUTEX_STALLED_NP)
+ iattr->mutexkind &= ~PTHREAD_MUTEXATTR_FLAG_ROBUST;
+ else
+ iattr->mutexkind |= PTHREAD_MUTEXATTR_FLAG_ROBUST;
+
+ return 0;
+}
+weak_alias (pthread_mutexattr_setrobust, pthread_mutexattr_setrobust_np)