freeswitch/src/mod/applications/mod_skel/mod_skel.c

/* 
 * FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
 * Copyright (C) 2005-2009, Anthony Minessale II <anthm@freeswitch.org>
 *
 * Version: MPL 1.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
 *
 * The Initial Developer of the Original Code is
 * Anthony Minessale II <anthm@freeswitch.org>
 * Portions created by the Initial Developer are Copyright (C)
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * 
 * Anthony Minessale II <anthm@freeswitch.org>
 * Neal Horman <neal at wanlink dot com>
 *
 *
 * mod_skel.c -- Framework Demo Module
 *
 */
#include <switch.h>

/* Prototypes */
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_skel_shutdown);
SWITCH_MODULE_RUNTIME_FUNCTION(mod_skel_runtime);
SWITCH_MODULE_LOAD_FUNCTION(mod_skel_load);

/* SWITCH_MODULE_DEFINITION(name, load, shutdown, runtime) 
 * Defines a switch_loadable_module_function_table_t and a static const char[] modname
 */
SWITCH_MODULE_DEFINITION(mod_skel, mod_skel_load, mod_skel_shutdown, NULL);

typedef enum {
	CODEC_NEGOTIATION_GREEDY = 1,
	CODEC_NEGOTIATION_GENEROUS = 2,
	CODEC_NEGOTIATION_EVIL = 3
} codec_negotiation_t;

static struct {
	char *codec_negotiation_str;
	codec_negotiation_t codec_negotiation;
	switch_bool_t sip_trace;
	int integer;
} globals;

static switch_status_t config_callback_siptrace(switch_xml_config_item_t *data, switch_bool_t changed) 
{
	switch_bool_t value = *(switch_bool_t*)data->ptr;
	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "In siptrace callback: value %s changed %s\n",
		value ? "true" : "false", changed ? "true" : "false");
	
	/*
	if (changed) {
		nua_set_params(((sofia_profile_t*)data->functiondata)->nua, TPTAG_LOG(value), TAG_END());
	} 
	*/
	
	return SWITCH_STATUS_SUCCESS;
}

static switch_status_t do_config(switch_bool_t reload)
{
	switch_xml_t cfg, xml, settings;
	switch_xml_config_string_options_t config_opt_codec_negotiation = { NULL, 0, "greedy|generous|evil" };
														 /* enforce_min, min, enforce_max, max */
	switch_xml_config_int_options_t config_opt_integer = { SWITCH_TRUE, 0, SWITCH_TRUE, 10 };
	switch_xml_config_enum_item_t config_opt_codec_negotiation_enum[] = { 
		{ "greedy", CODEC_NEGOTIATION_GREEDY },
		{ "generous", CODEC_NEGOTIATION_GENEROUS },
		{ "evil", CODEC_NEGOTIATION_EVIL },
		{ NULL, 0 } 
	};
	
	switch_xml_config_item_t instructions[] = {
							/* parameter name        type                 reloadable   pointer                         default value     options structure */
		SWITCH_CONFIG_ITEM("codec-negotiation-str", SWITCH_CONFIG_STRING, SWITCH_TRUE, &globals.codec_negotiation_str, "greedy", &config_opt_codec_negotiation),
		SWITCH_CONFIG_ITEM("codec-negotiation", SWITCH_CONFIG_ENUM, SWITCH_TRUE, &globals.codec_negotiation,  (void*)CODEC_NEGOTIATION_GREEDY, &config_opt_codec_negotiation_enum),
		SWITCH_CONFIG_ITEM_CALLBACK("sip-trace", SWITCH_CONFIG_BOOL, SWITCH_TRUE, &globals.sip_trace,  (void*)SWITCH_FALSE,  config_callback_siptrace, NULL ),
		SWITCH_CONFIG_ITEM("integer", SWITCH_CONFIG_INT, SWITCH_FALSE, &globals.integer, (void*)100, &config_opt_integer),
		SWITCH_CONFIG_ITEM_END()
	};

	memset(&globals, 0, sizeof(globals));

	if (!(xml = switch_xml_open_cfg("skel.conf", &cfg, NULL))) {
		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Could not open skel.conf\n");
		return SWITCH_STATUS_FALSE;
	}

	if ((settings = switch_xml_child(cfg, "settings"))) {
		if (switch_xml_config_parse(switch_xml_child(settings, "param"), 0, instructions) == SWITCH_STATUS_SUCCESS) {
			switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE,"Config parsed ok!\n");
			return SWITCH_STATUS_SUCCESS;
		}
	}
	
	if (cfg) {
		switch_xml_free(cfg);
	}
	
	return SWITCH_STATUS_SUCCESS;
}

SWITCH_STANDARD_API(skel_function)
{
	stream->write_function(stream, "+OK Reloading\n");
	do_config(SWITCH_TRUE);
	return SWITCH_STATUS_SUCCESS;
}

/* Macro expands to: switch_status_t mod_skel_load(switch_loadable_module_interface_t **module_interface, switch_memory_pool_t *pool) */
SWITCH_MODULE_LOAD_FUNCTION(mod_skel_load)
{
	switch_api_interface_t *api_interface;
	/* connect my internal structure to the blank pointer passed to me */
	*module_interface = switch_loadable_module_create_module_interface(pool, modname);

	switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Hello World!\n");
	
	do_config(SWITCH_FALSE);
	
	SWITCH_ADD_API(api_interface, "skel", "Skel API", skel_function, "syntax");

	/* indicate that the module should continue to be loaded */
	return SWITCH_STATUS_SUCCESS;
}

/*
  Called when the system shuts down
  Macro expands to: switch_status_t mod_skel_shutdown() */
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_skel_shutdown)
{
	return SWITCH_STATUS_SUCCESS;
}


/*
  If it exists, this is called in it's own thread when the module-load completes
  If it returns anything but SWITCH_STATUS_TERM it will be called again automatically
  Macro expands to: switch_status_t mod_skel_runtime()
SWITCH_MODULE_RUNTIME_FUNCTION(mod_skel_runtime)
{
	while(looping)
	{
		switch_cond_next();
	}
	return SWITCH_STATUS_TERM;
}
*/

/* For Emacs:
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 */