/*
* Copyright (C) 2010-2016 Free Software Foundation, Inc.
* Copyright (C) 2015-2016 Red Hat, 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
*
*/
#include
#include
#include "gnutls_int.h"
#include "errors.h"
#include
#include
#include
#include
#ifdef _WIN32
# include
# include
#else /* !_WIN32 */
# ifdef HAVE_PTHREAD_LOCKS
# include
# endif
#endif
/* System specific lock function wrappers.
*/
/* Thread stuff */
#ifdef HAVE_WIN32_LOCKS
static int gnutls_system_mutex_init(void **priv)
{
CRITICAL_SECTION *lock = malloc(sizeof(CRITICAL_SECTION));
if (lock == NULL)
return GNUTLS_E_MEMORY_ERROR;
InitializeCriticalSection(lock);
*priv = lock;
return 0;
}
static int gnutls_system_mutex_deinit(void **priv)
{
DeleteCriticalSection((CRITICAL_SECTION *) * priv);
free(*priv);
return 0;
}
static int gnutls_system_mutex_lock(void **priv)
{
EnterCriticalSection((CRITICAL_SECTION *) * priv);
return 0;
}
static int gnutls_system_mutex_unlock(void **priv)
{
LeaveCriticalSection((CRITICAL_SECTION *) * priv);
return 0;
}
#endif /* WIN32_LOCKS */
#ifdef HAVE_PTHREAD_LOCKS
static int gnutls_system_mutex_init(void **priv)
{
pthread_mutex_t *lock = malloc(sizeof(pthread_mutex_t));
int ret;
if (lock == NULL)
return GNUTLS_E_MEMORY_ERROR;
ret = pthread_mutex_init(lock, NULL);
if (ret) {
free(lock);
gnutls_assert();
return GNUTLS_E_LOCKING_ERROR;
}
*priv = lock;
return 0;
}
static int gnutls_system_mutex_deinit(void **priv)
{
pthread_mutex_destroy((pthread_mutex_t *) * priv);
free(*priv);
return 0;
}
static int gnutls_system_mutex_lock(void **priv)
{
if (pthread_mutex_lock((pthread_mutex_t *) * priv)) {
gnutls_assert();
return GNUTLS_E_LOCKING_ERROR;
}
return 0;
}
static int gnutls_system_mutex_unlock(void **priv)
{
if (pthread_mutex_unlock((pthread_mutex_t *) * priv)) {
gnutls_assert();
return GNUTLS_E_LOCKING_ERROR;
}
return 0;
}
#endif /* PTHREAD_LOCKS */
#ifdef HAVE_NO_LOCKS
static int gnutls_system_mutex_init(void **priv)
{
return 0;
}
static int gnutls_system_mutex_deinit(void **priv)
{
return 0;
}
static int gnutls_system_mutex_lock(void **priv)
{
return 0;
}
static int gnutls_system_mutex_unlock(void **priv)
{
return 0;
}
#endif /* NO_LOCKS */
mutex_init_func gnutls_mutex_init = gnutls_system_mutex_init;
mutex_deinit_func gnutls_mutex_deinit = gnutls_system_mutex_deinit;
mutex_lock_func gnutls_mutex_lock = gnutls_system_mutex_lock;
mutex_unlock_func gnutls_mutex_unlock = gnutls_system_mutex_unlock;