1 files changed, 121 insertions, 0 deletions
diff --git a/libgomp/config/posix/lock.c b/libgomp/config/posix/lock.c
new file mode 100644
index 0000000..062174d
--- /dev/null
+++ b/libgomp/config/posix/lock.c
@@ -0,0 +1,121 @@
+/* Copyright (C) 2005 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU OpenMP Library (libgomp).
+
+   Libgomp 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.
+
+   Libgomp 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 libgomp; see the file COPYING.LIB.  If not, write to the
+   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA.  */
+
+/* As a special exception, if you link this library with other files, some
+   of which are compiled with GCC, to produce an executable, this library
+   does not by itself cause the resulting executable to be covered by the
+   GNU General Public License.  This exception does not however invalidate
+   any other reasons why the executable file might be covered by the GNU
+   General Public License.  */
+
+/* This is the default PTHREADS implementation of the public OpenMP
+   locking primitives.
+
+   Because OpenMP uses different entry points for normal and recursive
+   locks, and pthreads uses only one entry point, a system may be able
+   to do better and streamline the locking as well as reduce the size
+   of the types exported.  */
+
+/* We need Unix98 extensions to get recursive locks.  */
+#define _XOPEN_SOURCE 500
+
+#include "libgomp.h"
+
+
+void
+omp_init_lock (omp_lock_t *lock)
+{
+  pthread_mutex_init (lock, NULL);
+}
+
+void
+omp_destroy_lock (omp_lock_t *lock)
+{
+  pthread_mutex_destroy (lock);
+}
+
+void
+omp_set_lock (omp_lock_t *lock)
+{
+  pthread_mutex_lock (lock);
+}
+
+void
+omp_unset_lock (omp_lock_t *lock)
+{
+  pthread_mutex_unlock (lock);
+}
+
+int
+omp_test_lock (omp_lock_t *lock)
+{
+  return pthread_mutex_trylock (lock) == 0;
+}
+
+void
+omp_init_nest_lock (omp_nest_lock_t *lock)
+{
+  pthread_mutexattr_t attr;
+
+  pthread_mutexattr_init (&attr);
+  pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
+  pthread_mutex_init (&lock->lock, &attr);
+  lock->count = 0;
+  pthread_mutexattr_destroy (&attr);
+}
+
+void
+omp_destroy_nest_lock (omp_nest_lock_t *lock)
+{
+  pthread_mutex_destroy (&lock->lock);
+}
+
+void
+omp_set_nest_lock (omp_nest_lock_t *lock)
+{
+  pthread_mutex_lock (&lock->lock);
+  lock->count++;
+}
+
+void
+omp_unset_nest_lock (omp_nest_lock_t *lock)
+{
+  lock->count--;
+  pthread_mutex_unlock (&lock->lock);
+}
+
+int
+omp_test_nest_lock (omp_nest_lock_t *lock)
+{
+  if (pthread_mutex_trylock (&lock->lock) == 0)
+    return ++lock->count;
+  return 0;
+}
+
+ialias (omp_init_lock)
+ialias (omp_init_nest_lock)
+ialias (omp_destroy_lock)
+ialias (omp_destroy_nest_lock)
+ialias (omp_set_lock)
+ialias (omp_set_nest_lock)
+ialias (omp_unset_lock)
+ialias (omp_unset_nest_lock)
+ialias (omp_test_lock)
+ialias (omp_test_nest_lock)