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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_dummy.c
*
* @brief A dummy traffic plugin.
*
* This is a dummy plugin to test the traffic framework.
*/
#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 */
int reports_requested; /*!< How many reports have been requested */
};
struct traffic_message ** traffic_dummy_get_messages(struct traffic_priv * this_);
/**
* @brief Returns a dummy traffic report.
*
* This method will report two messages when first called: The messages indicate queuing traffic on the
* A9 Munich–Nuremberg between Neufahrn and Allershausen, and slow traffic on the A96 Lindau–Munich
* between Gräfelfing and München-Laim.
*
* The 10th call will report an update message for the A9 (with a recent timestamp but otherwise the same
* data) and a cancellation message for the A96.
*
* They mimic TMC messages in that coordinates are approximate, TMC identifiers are supplied for the
* locations and extra data fields which can be inferred from the TMC location table are filled. The
* timestamps indicate a message that has just been received for the first time, i.e. its “first
* received” and “last updated” timestamps match and are recent. Expiration is after 20 seconds for
* messages in the first feed and 10 seconds for messages in the first feed (far below the lowest
* expiration timespan permitted in TMC).
*
* All other calls to this method will return `NULL`, indicating that there are no messages to report.
*
* @return A `NULL`-terminated pointer array. Each element points to one `struct traffic_message`.
* `NULL` is returned (rather than an empty pointer array) if there are no messages to report.
*/
struct traffic_message ** traffic_dummy_get_messages(struct traffic_priv * this_) {
struct traffic_message ** messages;
struct traffic_point * from;
struct traffic_point * to;
struct traffic_point * at;
struct traffic_point * via;
struct traffic_location * location;
this_->reports_requested++;
switch (this_->reports_requested) {
case 10:
messages = g_new0(struct traffic_message *, 6);
from = traffic_point_new(11.6208, 48.3164, "Neufahrn", "68", "12732-4");
to = traffic_point_new(11.5893, 48.429, "Allershausen", "67", "12732");
location = traffic_location_new(NULL, from, to, NULL, NULL, "Nürnberg", NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_highway_land, NULL, "A9", "58:1", -1);
messages[0] = traffic_message_new_single_event("dummy:A9-68-67", time(NULL), time(NULL),
time(NULL) + 86400, 0, location, event_class_congestion, event_congestion_queue);
from = traffic_point_new(11.4481, 48.1266, "Gräfelfing", "36b", "12961-2");
to = traffic_point_new(11.5028, 48.1258, "München-Laim", "38", "12961");
location = traffic_location_new(NULL, from, to, NULL, NULL, "München", NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_highway_land, NULL, "A96", "58:1", -1);
messages[1] = traffic_message_new_single_event("dummy:A96-36b-38", time(NULL), time(NULL),
time(NULL) + 86400, 0, location, event_class_congestion, event_congestion_slow_traffic);
from = traffic_point_new(11.6143, 48.15255, "Effnertunnel", NULL, "60922");
to = traffic_point_new(11.53225, 48.13255, "Trappentreutunnel", NULL, "35333");
via = traffic_point_new(11.5728, 48.178, "Petueltunnel", NULL, "29829");
location = traffic_location_new(NULL, from, to, via, NULL, NULL, NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_line_unspecified, NULL, "B2R", "58:1", 1);
messages[2] = traffic_message_new_single_event("dummy:B2R-N", time(NULL), time(NULL),
time(NULL) + 86400, 0, location, event_class_congestion, event_congestion_slow_traffic);
from = traffic_point_new(11.6143, 48.15255, "Effnertunnel", NULL, "60922");
to = traffic_point_new(11.53225, 48.13255, "Trappentreutunnel", NULL, "35333");
via = traffic_point_new(11.55085, 48.11225, "Brudermühltunnel", NULL, "35329");
location = traffic_location_new(NULL, from, to, via, NULL, NULL, NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_line_unspecified, NULL, "B2R", "58:1", -1);
messages[3] = traffic_message_new_single_event("dummy:B2R-S", time(NULL), time(NULL),
time(NULL) + 86400, 0, location, event_class_congestion, event_congestion_slow_traffic);
from = traffic_point_new(11.6208, 48.3164, "Neufahrn", "68", "12727+5");
at = traffic_point_new(11.6405, 48.2435, "Garching-Süd", "71", "12727");
location = traffic_location_new(at, from, NULL, NULL, NULL, NULL, NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_highway_land, NULL, "A9", "58:1", 1);
messages[4] = traffic_message_new_single_event("dummy:A9-71-S", time(NULL), time(NULL),
time(NULL) + 86400, 0, location, event_class_congestion, event_congestion_slow_traffic);
break;
case 20:
messages = g_new0(struct traffic_message *, 4);
from = traffic_point_new(11.6208, 48.3164, "Neufahrn", "68", "12732-4");
to = traffic_point_new(11.5893, 48.429, "Allershausen", "67", "12732");
location = traffic_location_new(NULL, from, to, NULL, NULL, "Nürnberg", NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_highway_land, NULL, "A9", "58:1", -1);
messages[0] = traffic_message_new_single_event("dummy:A9-68-67", time(NULL) - 10, time(NULL),
time(NULL) + 10, 0, location, event_class_congestion, event_congestion_queue);
from = traffic_point_new(11.4481, 48.1266, "Gräfelfing", "36b", "12961-2");
to = traffic_point_new(11.5028, 48.1258, "München-Laim", "38", "12961");
location = traffic_location_new(NULL, from, to, NULL, NULL, "München", NULL, location_dir_one,
location_fuzziness_low_res, location_ramps_none, type_highway_land, NULL, "A96", "58:1", -1);
messages[1] = traffic_message_new_cancellation("dummy:A96-36b-38", time(NULL) - 10, time(NULL),
time(NULL) + 10, location);
break;
default:
return NULL;
}
return messages;
}
/**
* @brief The methods implemented by this plugin
*/
static struct traffic_methods traffic_dummy_meth = {
traffic_dummy_get_messages,
};
/**
* @brief Registers a new dummy 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_dummy_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_dummy_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("dummy", traffic_dummy_new);
}
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