6d4d216add
PR libgomp/29494 * configure.tgt: Use posix95 configuration for Solaris 2.5.1 and 2.6. * config/posix95: New directory. * config/posix95/omp-lock.h: New file. * config/posix95/lock.c: Likewise. From-SVN: r118004
132 lines
3.1 KiB
C
132 lines
3.1 KiB
C
/* Copyright (C) 2006 Free Software Foundation, Inc.
|
|
|
|
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 POSIX95 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. */
|
|
|
|
#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_mutex_init (&lock->lock, NULL);
|
|
lock->owner = (pthread_t) 0;
|
|
lock->count = 0;
|
|
}
|
|
|
|
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_t me = pthread_self ();
|
|
|
|
if (lock->owner != me)
|
|
{
|
|
pthread_mutex_lock (&lock->lock);
|
|
lock->owner = me;
|
|
}
|
|
|
|
lock->count++;
|
|
}
|
|
|
|
void
|
|
omp_unset_nest_lock (omp_nest_lock_t *lock)
|
|
{
|
|
lock->count--;
|
|
|
|
if (lock->count == 0)
|
|
{
|
|
lock->owner = (pthread_t) 0;
|
|
pthread_mutex_unlock (&lock->lock);
|
|
}
|
|
}
|
|
|
|
int
|
|
omp_test_nest_lock (omp_nest_lock_t *lock)
|
|
{
|
|
pthread_t me = pthread_self ();
|
|
|
|
if (lock->owner != me)
|
|
{
|
|
if (pthread_mutex_trylock (&lock->lock) != 0)
|
|
return 0;
|
|
lock->owner = me;
|
|
}
|
|
|
|
return ++lock->count;
|
|
}
|
|
|
|
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)
|