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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2017 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* 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, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* @file traffic_null.c
*
* @brief A null traffic plugin.
*
* This plugin was mainly designed to test the traffic framework. It acts like a traffic plugin but will
* never report any messages. This allows us to have the full traffic functionality without having an
* actual source for traffic messages; useful for injecting messages via DBus.
*/
#include <string.h>
#include <time.h>
#ifdef _POSIX_C_SOURCE
#include <sys/types.h>
#endif
#include "glib_slice.h"
#include "config.h"
#include "coord.h"
#include "item.h"
#include "xmlconfig.h"
#include "traffic.h"
#include "plugin.h"
#include "debug.h"
/**
* @brief Stores information about the plugin instance.
*/
struct traffic_priv {
struct navit * nav; /*!< The navit instance */
};
struct traffic_message ** traffic_null_get_messages(struct traffic_priv * this_);
/**
* @brief Returns an empty traffic report.
*
* @return Always `NULL`
*/
struct traffic_message ** traffic_null_get_messages(struct traffic_priv * this_) {
return NULL;
}
/**
* @brief The methods implemented by this plugin
*/
static struct traffic_methods traffic_null_meth = {
traffic_null_get_messages,
};
/**
* @brief Registers a new null traffic plugin
*
* @param nav The navit instance
* @param meth Receives the traffic methods
* @param attrs The attributes for the map
* @param cbl
*
* @return A pointer to a `traffic_priv` structure for the plugin instance
*/
static struct traffic_priv * traffic_null_new(struct navit *nav, struct traffic_methods *meth,
struct attr **attrs, struct callback_list *cbl) {
struct traffic_priv *ret;
dbg(lvl_debug, "enter");
ret = g_new0(struct traffic_priv, 1);
*meth = traffic_null_meth;
return ret;
}
/**
* @brief Initializes the traffic plugin.
*
* This function is called once on startup.
*/
void plugin_init(void) {
dbg(lvl_debug, "enter");
plugin_register_category_traffic("null", traffic_null_new);
}
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