event_dispatcher.h
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/**
* \file
*
* \author Georg Hopp
*
* \copyright
* Copyright © 2014 Georg Hopp
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TR_EVENT_DISPATCHER_H__
#define __TR_EVENT_DISPATCHER_H__
#include <time.h>
#include <stdint.h>
#include <pthread.h>
#include "trbase.h"
#include "trdata.h"
#include "tr/event.h"
TR_CLASS(TR_EventDispatcher);
typedef enum TR_EventDone_e {
TR_EVENT_DONE = 0,
TR_EVENT_PENDING
} TR_EventDone;
#include "tr/event_handler.h"
typedef enum TR_e_EventDispatcherMode {
TR_EVD_SERVER = 0,
TR_EVD_CLIENT
} TR_EventDispatcherMode;
TR_CLASS(TR_EventDispatcher) {
TR_EXTENDS(TR_EventSubject);
TR_Queue events;
pthread_mutex_t events_lock;
pthread_cond_t events_cond;
pthread_t events_poll;
size_t events_handling;
TR_Hash handler;
TR_EventHandler default_handler;
int running;
TR_Timer heartbeat;
unsigned long n_beats;
TR_EventDispatcherMode mode;
};
TR_INSTANCE_INIT(TR_EventDispatcher);
TR_CLASSVARS_DECL(TR_EventDispatcher) {
TR_CV_EXTENDS(TR_EventSubject);
};
#define TR_DISPATCHER_EVENT_HEARTBEAT 0
#define TR_DISPATCHER_EVENT_USER_WAIT 1
#define TR_DISPATCHER_EVENT_DATA_WAIT 2
#define TR_DISPATCHER_EVENT_SHUTDOWN 3
#define TR_DISPATCHER_EVENT_MAX ((size_t)TR_DISPATCHER_EVENT_SHUTDOWN)
#define TR_DISPATCHER_MODE_TO_EVENTID(mode) \
((mode) == TR_EVD_CLIENT \
? TR_DISPATCHER_EVENT_USER_WAIT \
: TR_DISPATCHER_EVENT_DATA_WAIT)
void TR_eventDispatcherRegisterHandler(TR_EventDispatcher, TR_EventHandler);
unsigned long
TR_eventDispatcherGetDataWaitTime(TR_EventDispatcher);
void TR_eventDispatcherStart(TR_EventDispatcher);
void TR_eventDispatcherShutdown(TR_EventDispatcher);
#define TR_eventDispatcherEnqueueEvent(disp,ev) \
pthread_mutex_lock(&((disp)->events_lock)); \
TR_queuePut((disp)->events, (ev)); \
pthread_cond_broadcast(&((disp)->events_cond)); \
pthread_mutex_unlock(&((disp)->events_lock))
#define TR_eventDispatcherStop(disp) \
(((TR_EventDispatcher)disp)->running = 0)
#define TR_eventDispatcherSetHeartbeat(disp, beat) \
(TR_timerSetMil((disp)->heartbeat, (beat)))
#define TR_eventDispatcherGetBeatTime(disp) \
(TR_timerGet((disp)->heartbeat, &((disp)->n_beats)))
#endif // __TR_EVENT_DISPATCHER_H__
// vim: set ts=4 sw=4: