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authorUlrich Drepper <drepper@redhat.com>2005-12-27 01:04:06 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-27 01:04:06 +0000
commit1bcfb5a5eb1c25b64a329c1edf6bcfb440cdbc93 (patch)
treeefa74fd1d0c2f6fccda616328a7b432ffdc6ba92 /nptl/pthread_mutex_consistent.c
parent08f60b258ec9d9a24275831941a6f559eb26580e (diff)
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* Versions.def: Add GLIBC_2.4 for libpthread. cvs/fedora-glibc-20051227T1426
Diffstat (limited to 'nptl/pthread_mutex_consistent.c')
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diff --git a/nptl/pthread_mutex_consistent.c b/nptl/pthread_mutex_consistent.c
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+/* Copyright (C) 2005 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_mutex_consistent_np (mutex)
+     pthread_mutex_t *mutex;
+{
+  /* Test whether this is a robust mutex with a dead owner.  */
+  if ((mutex->__data.__kind & PTHREAD_MUTEX_ROBUST_PRIVATE_NP) == 0
+      || mutex->__data.__owner != -THREAD_GETMEM (THREAD_SELF, tid))
+    return EINVAL;
+
+  mutex->__data.__owner = -mutex->__data.__owner;
+
+  return 0;
+}