mirror of
https://github.com/tuxbox-neutrino/neutrino.git
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115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
/*
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Based up Neutrino-GUI - Tuxbox-Project
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Copyright (C) 2001 by Steffen Hehn 'McClean'
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Generic Timer.
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Copyright (C) 2013, Thilo Graf 'dbt'
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License: GPL
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <global.h>
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#include <neutrino.h>
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#include "cc_timer.h"
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#include <pthread.h>
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#include <errno.h>
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#include <system/helpers.h>
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#include <system/debug.h>
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using namespace std;
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CComponentsTimer::CComponentsTimer( const int& interval)
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{
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tm_thread = 0;
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tm_interval = interval;
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sl = sigc::mem_fun(*this, &CComponentsTimer::stopTimer);
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if (interval > 0)
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startTimer();
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}
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CComponentsTimer::~CComponentsTimer()
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{
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if (stopTimer())
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dprintf(DEBUG_INFO,"[CComponentsTimer] [%s] timer stopped\n", __func__);
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}
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//thread handle
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void* CComponentsTimer::initTimerThread(void *arg)
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{
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CComponentsTimer *timer = static_cast<CComponentsTimer*>(arg);
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//start loop
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while(timer) {
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timer->mutex.lock();
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timer->OnTimer();
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mySleep(timer->tm_interval);
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timer->mutex.unlock();
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}
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return 0;
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}
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//start up running timer with own thread, return true on succses
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bool CComponentsTimer::startTimer()
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{
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void *ptr = static_cast<void*>(this);
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pthread_setcancelstate(PTHREAD_CANCEL_ENABLE,0);
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pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS,0);
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if(!tm_thread) {
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int res = pthread_create (&tm_thread, NULL, initTimerThread, ptr) ;
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if (res != 0){
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dprintf(DEBUG_NORMAL,"[CComponentsTimer] [%s] pthread_create %s\n", __func__, strerror(errno));
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return false;
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}
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dprintf(DEBUG_INFO,"[CComponentsTimer] [%s] timer thread [%lu] created with interval = %d\n", __func__, tm_thread, tm_interval);
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}
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//ensure kill of thread on any restart of neutrino
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CNeutrinoApp::getInstance()->OnBeforeRestart.connect(sl);
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return true;
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}
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//stop ticking timer and kill thread, return true on succses
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bool CComponentsTimer::stopTimer()
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{
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int thres = 0;
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if(tm_thread) {
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thres = pthread_cancel(tm_thread);
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dprintf(DEBUG_INFO,"[CComponentsTimer] [%s] waiting for timer thread terminate ...\n", __func__);
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if (thres != 0)
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dprintf(DEBUG_NORMAL,"[CComponentsTimer] [%s] pthread_cancel %s\n", __func__, strerror(errno));
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thres = pthread_join(tm_thread, NULL);
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if (thres != 0)
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dprintf(DEBUG_NORMAL, "[CComponentsTimer] [%s] pthread_join %s\n", __func__, strerror(errno));
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}
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if (thres == 0){
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tm_thread = 0;
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//ensure disconnect of unused slot
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sl.disconnect();
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return true;
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}
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return false;
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}
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