aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.2.1-5666.3/libgomp/config/posix/sem.h
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.2.1-5666.3/libgomp/config/posix/sem.h')
-rw-r--r--gcc-4.2.1-5666.3/libgomp/config/posix/sem.h90
1 files changed, 90 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/libgomp/config/posix/sem.h b/gcc-4.2.1-5666.3/libgomp/config/posix/sem.h
new file mode 100644
index 000000000..7056abffc
--- /dev/null
+++ b/gcc-4.2.1-5666.3/libgomp/config/posix/sem.h
@@ -0,0 +1,90 @@
+/* Copyright (C) 2005, 2006 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 POSIX 1003.1b implementation of a semaphore
+ synchronization mechanism for libgomp. This type is private to
+ the library.
+
+ This is a bit heavy weight for what we need, in that we're not
+ interested in sem_wait as a cancelation point, but it's not too
+ bad for a default. */
+
+#ifndef GOMP_SEM_H
+#define GOMP_SEM_H 1
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility push(default)
+#endif
+
+#include <semaphore.h>
+
+#ifdef HAVE_ATTRIBUTE_VISIBILITY
+# pragma GCC visibility pop
+#endif
+
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+#include <pthread.h>
+
+struct gomp_sem
+{
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ int value;
+};
+
+typedef struct gomp_sem gomp_sem_t;
+
+extern void gomp_sem_init (gomp_sem_t *sem, int value);
+
+extern void gomp_sem_wait (gomp_sem_t *sem);
+
+extern void gomp_sem_post (gomp_sem_t *sem);
+
+extern void gomp_sem_destroy (gomp_sem_t *sem);
+
+#else /* HAVE_BROKEN_POSIX_SEMAPHORES */
+
+typedef sem_t gomp_sem_t;
+
+static inline void gomp_sem_init (gomp_sem_t *sem, int value)
+{
+ sem_init (sem, 0, value);
+}
+
+extern void gomp_sem_wait (gomp_sem_t *sem);
+
+static inline void gomp_sem_post (gomp_sem_t *sem)
+{
+ sem_post (sem);
+}
+
+static inline void gomp_sem_destroy (gomp_sem_t *sem)
+{
+ sem_destroy (sem);
+}
+#endif /* doesn't HAVE_BROKEN_POSIX_SEMAPHORES */
+#endif /* GOMP_SEM_H */