cel_custom.c

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/*
 * Asterisk -- An open source telephony toolkit.
 *
 * Copyright (C) 2009, Digium, Inc.
 *
 * Steve Murphy <murf@digium.com>
 * much borrowed from cdr code (cdr_custom.c), author Mark Spencer
 *
 * 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 Custom Comma Separated Value CEL records.
 *
 * \author Steve Murphy <murf@digium.com>
 * Logs in LOG_DIR/cel_custom
 * \ingroup cel_drivers
 *
 * The logic for this module now resides in res/res_cdrel_custom.c.
 *
 */
 
/*** MODULEINFO
    <depend>res_cdrel_custom</depend>
    <support_level>core</support_level>
 ***/
 
#include "asterisk.h"
 
#include "asterisk/cel.h"
#include "asterisk/module.h"
#include "asterisk/res_cdrel_custom.h"
 
#define CONFIG "cel_custom.conf"
 
#define CUSTOM_BACKEND_NAME "CEL Custom CSV Logging"
 
static struct cdrel_configs *configs;
 
/*!
 * Protects in-flight log transactions from reloads.
 */
static ast_rwlock_t configs_lock;
 
#define CDREL_RECORD_TYPE cdrel_record_cel
#define CDREL_BACKEND_TYPE cdrel_backend_text
 
static void custom_log(struct ast_event *event)
{
    ast_rwlock_rdlock(&configs_lock);
    cdrel_logger(configs, event);
    ast_rwlock_unlock(&configs_lock);
}
 
static int unload_module(void)
{
    int res = 0;
 
    ast_rwlock_wrlock(&configs_lock);
    res = cdrel_unload_module(CDREL_BACKEND_TYPE, CDREL_RECORD_TYPE, configs, CUSTOM_BACKEND_NAME);
    ast_rwlock_unlock(&configs_lock);
    if (res == 0) {
        ast_rwlock_destroy(&configs_lock);
    }
 
    return res;
}
 
static enum ast_module_load_result load_module(void)
{
    if (ast_rwlock_init(&configs_lock) != 0) {
        return AST_MODULE_LOAD_DECLINE;
    }
 
    configs = cdrel_load_module(CDREL_BACKEND_TYPE, CDREL_RECORD_TYPE, CONFIG, CUSTOM_BACKEND_NAME, custom_log);
 
    return configs ? AST_MODULE_LOAD_SUCCESS : AST_MODULE_LOAD_DECLINE;
}
 
static int reload(void)
{
    int res = 0;
    ast_rwlock_wrlock(&configs_lock);
    res = cdrel_reload_module(CDREL_BACKEND_TYPE, CDREL_RECORD_TYPE, &configs, CONFIG);
    ast_rwlock_unlock(&configs_lock);
    return res;
}
 
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Customizable Comma Separated Values CEL Backend",
    .support_level = AST_MODULE_SUPPORT_CORE,
    .load = load_module,
    .unload = unload_module,
    .reload = reload,
    .load_pri = AST_MODPRI_CDR_DRIVER,
    .requires = "cel,res_cdrel_custom",
);