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/*
Copyright (C) 2006-2007 Werner Dittmann
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <malloc.h>
#include <errno.h>
#include <gcrypt.h>
#include <libzrtpcpp-config.h>
#ifdef HAVE_PTHREAD_H
#include <pthread.h>
#else
#include <winbase.h>
#endif
static int initialized = 0;
#ifdef __cplusplus
extern "C" {
#endif
#ifdef HAVE_PTHREAD_H
static int gcry_thread_mutex_init (void **priv)
{
int err = 0;
pthread_mutex_t *lock = (pthread_mutex_t *)malloc (sizeof (pthread_mutex_t));
if (!lock)
err = ENOMEM;
if (!err) {
err = pthread_mutex_init (lock, NULL);
if (err)
free (lock);
else
*priv = lock;
}
return err;
}
static int gcry_thread_mutex_destroy (void **lock)
{
int err = pthread_mutex_destroy ((pthread_mutex_t *)*lock);
free (*lock); return err;
}
static int gcry_thread_mutex_lock (void **lock)
{
return pthread_mutex_lock ((pthread_mutex_t *)*lock);
}
static int gcry_thread_mutex_unlock (void **lock)
{
return pthread_mutex_unlock ((pthread_mutex_t *)*lock);
}
static struct gcry_thread_cbs gcry_threads = {
GCRY_THREAD_OPTION_PTHREAD, NULL,
gcry_thread_mutex_init, gcry_thread_mutex_destroy,
gcry_thread_mutex_lock, gcry_thread_mutex_unlock
};
#else
static int gcry_thread_mutex_init (void **priv)
{
int err = 0;
CRITICAL_SECTION *lock = (CRITICAL_SECTION *)malloc(sizeof(CRITICAL_SECTION));
if (!lock)
err = ENOMEM;
if (!err) {
InitializeCriticalSection(lock);
*priv = lock;
}
return err;
}
static int gcry_thread_mutex_destroy (void **lock)
{
free(*lock);
return 0;
}
static int gcry_thread_mutex_lock (void **lock)
{
EnterCriticalSection((CRITICAL_SECTION *)*lock);
return 0;
}
static int gcry_thread_mutex_unlock (void **lock)
{
LeaveCriticalSection((CRITICAL_SECTION *)*lock);
return 0;
}
static struct gcry_thread_cbs gcry_threads = {
GCRY_THREAD_OPTION_PTHREAD, NULL,
gcry_thread_mutex_init, gcry_thread_mutex_destroy,
gcry_thread_mutex_lock, gcry_thread_mutex_unlock
};
#endif
#ifdef __cplusplus
}
#endif
int initializeGcrypt ()
{
if (initialized) {
return 1;
}
gcry_control(GCRYCTL_SET_THREAD_CBS, &gcry_threads);
gcry_check_version(NULL);
gcry_control(GCRYCTL_DISABLE_SECMEM);
initialized = 1;
return 1;
}
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