| /* |
| 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; |
| } |