diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/mutex_consistent.c')
-rw-r--r-- | nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/mutex_consistent.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/mutex_consistent.c b/nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/mutex_consistent.c new file mode 100644 index 0000000000..9227bb2aa3 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/mutex_consistent.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2008 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Bartley <dtbartle@csclub.uwaterloo.ca>, 2008. + + 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 <pthreadP.h> +#include <synch.h> +#include <errno.h> + + +int mutex_consistent (mutex) + mutex_t *mutex; +{ + if ((mutex->mutex_type & LOCK_ROBUST) == 0 || + (mutex->mutex_flag & LOCK_INITED) == 0 || + (mutex->mutex_flag & (LOCK_OWNERDEAD | LOCK_UNMAPPED)) == 0) + return EINVAL; + + mutex->mutex_flag &= ~(LOCK_OWNERDEAD | LOCK_UNMAPPED); + + /* The lock cannot be recursively held since it was just reclaimed. */ + mutex->mutex_rcount = 0; + + return 0; +} |