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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (c) 2008, Digium, Inc.
*
* Tilghman Lesher <res_curl_v1@the-tilghman.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief curl resource engine
*
* \author Tilghman Lesher <res_curl_v1@the-tilghman.com>
*
* Depends on the CURL library - http://curl.haxx.se/
*
*/
/*! \li \ref res_curl.c uses the configuration file \ref res_curl.conf
* \addtogroup configuration_file Configuration Files
*/
/*!
* \page res_curl.conf res_curl.conf
* \verbinclude res_curl.conf.sample
*/
/*** MODULEINFO
<depend>curl</depend>
<support_level>core</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <curl/curl.h>
#include "asterisk/module.h"
static const char *dependents[] = {
"func_curl.so",
"res_config_curl.so",
};
static int unload_module(void)
{
int res = 0;
size_t i;
/* If the dependent modules are still in memory, forbid unload */
for (i = 0; i < ARRAY_LEN(dependents); i++) {
if (ast_module_check(dependents[i])) {
ast_log(LOG_ERROR, "%s (dependent module) is still loaded. Cannot unload res_curl.so\n", dependents[i]);
res = -1;
}
}
if (res)
return -1;
curl_global_cleanup();
return res;
}
/*!
* \brief Load the module
*
* Module loading including tests for configuration or dependencies.
* This function can return AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_DECLINE,
* or AST_MODULE_LOAD_SUCCESS. If a dependency or environment variable fails
* tests return AST_MODULE_LOAD_FAILURE. If the module can not load the
* configuration file or other non-critical problem return
* AST_MODULE_LOAD_DECLINE. On success return AST_MODULE_LOAD_SUCCESS.
*/
static int load_module(void)
{
int res = 0;
if (curl_global_init(CURL_GLOBAL_ALL)) {
ast_log(LOG_ERROR, "Unable to initialize the cURL library. Cannot load res_curl.so\n");
return AST_MODULE_LOAD_DECLINE;
}
return res;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "cURL Resource Module",
.support_level = AST_MODULE_SUPPORT_CORE,
.load = load_module,
.unload = unload_module,
.load_pri = AST_MODPRI_REALTIME_DEPEND,
);
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