hlswmaster-ng (now in c++)
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/***************************************************************************
* Copyright (C) 04/2006 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* 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 2 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <time.h>
#include "timerservice.h"
// TODO: how to deregister TimerEvents?
Timer::Timer(Event* event, unsigned int timeval)
: next(0), event(event), timeval(timeval)
{
}
Timer::~Timer()
{
delete event;
}
TimerService::~TimerService()
{
Timer* search = firstTimer;
while (search != NULL) {
Timer* next = search->next;
delete search;
search = next;
}
}
void TimerService::addTimer(Timer* te, bool trigger)
{
te->timeout = time(NULL) + ((!trigger) ? te->timeval : 0);
Timer** search = &firstTimer;
while ((*search) != NULL && (*search)->timeout <= te->timeout)
search = &((*search)->next);
te->next = (*search);
(*search) = te;
}
void TimerService::checkTimeouts()
{
long now = time(NULL);
Timer* search = firstTimer;
while (search != NULL && search->timeout <= now) {
search->event->execute();
firstTimer = search->next;
addTimer(search, false);
search = firstTimer;
}
}
TimerService* TimerService::getInstance()
{
static TimerService ts;
return &ts;
}
void TimerService::registerTimer(Timer* te)
{
TimerService* ts = getInstance();
AutoMutex am(ts->mutex);
ts->addTimer(te, true);
}
void TimerService::checkTimers()
{
TimerService* ts = getInstance();
AutoMutex am(ts->mutex);
ts->checkTimeouts();
}