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/*
* Copyright (C) 2010-2012 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS 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.
*
* This 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 this program. If not, see <https://www.gnu.org/licenses/>
*
*/
#ifndef GNUTLS_LIB_LOCKS_H
#define GNUTLS_LIB_LOCKS_H
#include <gnutls/gnutls.h>
#include "gnutls_int.h"
#include "system.h"
#include "glthread/lock.h"
extern mutex_init_func gnutls_mutex_init;
extern mutex_deinit_func gnutls_mutex_deinit;
extern mutex_lock_func gnutls_mutex_lock;
extern mutex_unlock_func gnutls_mutex_unlock;
/* If a mutex is initialized with GNUTLS_STATIC_MUTEX, it must be
* locked/unlocked with the gnutls_static_mutex_* functions defined
* below instead of the above gnutls_mutex_* functions, because the
* latter can be replaced with gnutls_global_set_mutex().
*/
#define GNUTLS_STATIC_MUTEX(lock) gl_lock_define_initialized(static, lock)
typedef gl_lock_t *gnutls_static_mutex_t;
#define gnutls_static_mutex_lock(LOCK) \
(unlikely(glthread_lock_lock(LOCK)) ? \
gnutls_assert_val(GNUTLS_E_LOCKING_ERROR) : 0)
#define gnutls_static_mutex_unlock(LOCK) \
(unlikely(glthread_lock_unlock(LOCK)) ? \
gnutls_assert_val(GNUTLS_E_LOCKING_ERROR) : 0)
/* Unlike static mutexes, static rwlocks can be locked/unlocked with
* the functions defined below, because there is no way to replace
* those functions.
*/
#define GNUTLS_RWLOCK(rwlock) gl_rwlock_define_initialized(static, rwlock)
typedef gl_rwlock_t *gnutls_rwlock_t;
#define gnutls_rwlock_rdlock(RWLOCK) \
(unlikely(glthread_rwlock_rdlock(RWLOCK)) ? \
gnutls_assert_val(GNUTLS_E_LOCKING_ERROR) : 0)
#define gnutls_rwlock_wrlock(RWLOCK) \
(unlikely(glthread_rwlock_wrlock(RWLOCK)) ? \
gnutls_assert_val(GNUTLS_E_LOCKING_ERROR) : 0)
#define gnutls_rwlock_unlock(RWLOCK) \
(unlikely(glthread_rwlock_unlock(RWLOCK)) ? \
gnutls_assert_val(GNUTLS_E_LOCKING_ERROR) : 0)
#define GNUTLS_ONCE(once) gl_once_define(static, once)
typedef gl_once_t *gnutls_once_t;
#define gnutls_once(ONCE, INIT_FUNC) \
(unlikely(glthread_once(ONCE, INIT_FUNC)) ? \
gnutls_assert_val(GNUTLS_E_LOCKING_ERROR) : 0)
#endif /* GNUTLS_LIB_LOCKS_H */
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