diff options
Diffstat (limited to 'libpthread/nptl/pthread_mutex_consistent.c')
| -rw-r--r-- | libpthread/nptl/pthread_mutex_consistent.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/libpthread/nptl/pthread_mutex_consistent.c b/libpthread/nptl/pthread_mutex_consistent.c new file mode 100644 index 000000000..1e8f07470 --- /dev/null +++ b/libpthread/nptl/pthread_mutex_consistent.c @@ -0,0 +1,37 @@ +/* Copyright (C) 2005, 2006, 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_mutex_consistent ( + pthread_mutex_t *mutex) +{ + /* Test whether this is a robust mutex with a dead owner. */ + if ((mutex->__data.__kind & PTHREAD_MUTEX_ROBUST_NORMAL_NP) == 0 + || mutex->__data.__owner != PTHREAD_MUTEX_INCONSISTENT) + return EINVAL; + + mutex->__data.__owner = THREAD_GETMEM (THREAD_SELF, tid); + + return 0; +} +weak_alias (pthread_mutex_consistent, pthread_mutex_consistent_np) |