event_dispatcher.c
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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/>.
*/
#include <stdint.h>
#include <signal.h>
#include <stdio.h>
#include <time.h>
#include "trbase.h"
#include "trdata.h"
#include "tr/event_handler.h"
#include "tr/event_dispatcher.h"
volatile TR_EventDispatcher _TR_controlDispatcher;
static
void
terminate(int signum)
{
signal(signum, SIG_IGN);
/*
* \todo do logging here
*/
puts("signal ... go");
TR_eventDispatcherShutdown(_TR_controlDispatcher);
}
static
void
init_signals(void)
{
signal(SIGTERM, terminate);
signal(SIGHUP, SIG_IGN);
signal(SIGINT, terminate);
signal(SIGQUIT, terminate);
signal(SIGABRT, terminate);
signal(SIGALRM, SIG_IGN);
signal(SIGURG, SIG_IGN);
signal(SIGPIPE, SIG_IGN);
}
static
int
eventDispatcherCtor(void * _this, va_list * params) {
TR_EventDispatcher this = _this;
this->events = TR_new(TR_Queue);
this->pending = TR_new(TR_Queue);
this->handler = TR_new(TR_Hash);
this->mode = va_arg(*params, TR_EventDispatcherMode);
this->default_handler = va_arg(*params, TR_EventHandler);
this->running = 0;
this->heartbeat = 0;
this->nextbeat = 0;
if (! _TR_controlDispatcher) {
_TR_controlDispatcher = this;
init_signals();
}
return 0;
}
static
void
releaseHandlerQueues(const void * node, const void * data)
{
TR_delete(*(void**)((TR_HashValue)node)->value);
}
static
void
eventDispatcherDtor(void * _this) {
TR_EventDispatcher this = _this;
TR_hashEach(this->handler, NULL, releaseHandlerQueues);
TR_hashCleanup(this->handler);
TR_delete(this->handler);
TR_delete(this->pending);
TR_delete(this->events);
}
static
void
eventDispatcherCvInit(TR_class_ptr cls)
{
TR_EVENT_CREATE(cls, TR_DISPATCHER_EVENT_HEARTBEAT);
TR_EVENT_CREATE(cls, TR_DISPATCHER_EVENT_USER_WAIT);
TR_EVENT_CREATE(cls, TR_DISPATCHER_EVENT_DATA_WAIT);
TR_EVENT_CREATE(cls, TR_DISPATCHER_EVENT_SHUTDOWN);
}
intptr_t dispatcher_events[TR_DISPATCHER_EVENT_MAX + 1];
TR_INIT_IFACE(TR_Class, eventDispatcherCtor, eventDispatcherDtor, NULL);
TR_CREATE_CLASS(
TR_EventDispatcher,
TR_EventSubject,
eventDispatcherCvInit,
TR_IF(TR_Class)) = {
{
TR_DISPATCHER_EVENT_MAX + 1,
dispatcher_events
}
};
// vim: set ts=4 sw=4: