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97 lines (79 loc) · 2.2 KB
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/*
* This file is part of the SSH Library
*
* Copyright (c) 2010 by Aris Adamantiadis
*
* The SSH Library 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.
*
* The SSH 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 the SSH Library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
/**
* @defgroup libssh_threads The SSH threading functions.
* @ingroup libssh
*
* Threading with libssh
* @{
*/
#include "config.h"
#include "libssh/priv.h"
#include "libssh/crypto.h"
#include "libssh/threads.h"
static struct ssh_threads_callbacks_struct *user_callbacks = NULL;
/** @internal
* @brief inits the threading with the backend cryptographic libraries
*/
int ssh_threads_init(void)
{
static int threads_initialized = 0;
int rc;
if (threads_initialized) {
return SSH_OK;
}
/* first initialize the user_callbacks with our default handlers if not
* already the case
*/
if (user_callbacks == NULL){
user_callbacks = ssh_threads_get_default();
}
/* Then initialize the crypto libraries threading callbacks */
rc = crypto_thread_init(user_callbacks);
if (rc == SSH_OK) {
threads_initialized = 1;
}
return rc;
}
void ssh_threads_finalize(void)
{
crypto_thread_finalize();
}
int ssh_threads_set_callbacks(struct ssh_threads_callbacks_struct *cb)
{
int rc;
if (user_callbacks != NULL) {
crypto_thread_finalize();
}
user_callbacks = cb;
rc = crypto_thread_init(user_callbacks);
return rc;
}
const char *ssh_threads_get_type(void)
{
if (user_callbacks != NULL) {
return user_callbacks->type;
}
return NULL;
}
/**
* @}
*/