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160 lines
3.6 KiB
160 lines
3.6 KiB
/*****************************************************************************
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* x11_timer.cpp
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*****************************************************************************
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* Copyright (C) 2003 the VideoLAN team
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* $Id$
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*
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* Authors: Cyril Deguet <asmax@via.ecp.fr>
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* Olivier Teulière <ipkiss@via.ecp.fr>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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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
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* GNU General Public License for more details.
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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef X11_SKINS
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#include <unistd.h>
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#include <fcntl.h>
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#include <poll.h>
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#include "x11_timer.hpp"
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#include "x11_factory.hpp"
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#include "../commands/cmd_generic.hpp"
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X11Timer::X11Timer( intf_thread_t *pIntf, CmdGeneric &rCmd ):
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OSTimer( pIntf ), m_rCommand( rCmd )
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{
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// Get the instance of timer loop
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X11Factory *m_pOsFactory = (X11Factory*)(OSFactory::instance( pIntf ) );
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m_pTimerLoop = m_pOsFactory->getTimerLoop();
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}
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X11Timer::~X11Timer()
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{
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stop();
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}
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void X11Timer::start( int delay, bool oneShot )
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{
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m_interval = 1000 * delay;
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m_oneShot = oneShot;
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m_nextDate = mdate() + m_interval;
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m_pTimerLoop->addTimer( *this );
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}
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void X11Timer::stop()
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{
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m_pTimerLoop->removeTimer( *this );
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}
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mtime_t X11Timer::getNextDate() const
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{
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return m_nextDate;
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}
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bool X11Timer::execute()
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{
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m_nextDate += m_interval;
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// Execute the callback
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m_rCommand.execute();
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return !m_oneShot;
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}
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X11TimerLoop::X11TimerLoop( intf_thread_t *pIntf, int connectionNumber ):
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SkinObject( pIntf ), m_connectionNumber( connectionNumber )
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{
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}
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X11TimerLoop::~X11TimerLoop()
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{
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}
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void X11TimerLoop::addTimer( X11Timer &rTimer )
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{
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m_timers.push_back( &rTimer );
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}
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void X11TimerLoop::removeTimer( X11Timer &rTimer )
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{
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m_timers.remove( &rTimer );
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}
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void X11TimerLoop::waitNextTimer()
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{
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mtime_t curDate = mdate();
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mtime_t nextDate = LAST_MDATE;
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X11Timer *nextTimer = NULL;
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// Find the next timer to execute
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list<X11Timer*>::const_iterator timer;
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for( timer = m_timers.begin(); timer != m_timers.end(); timer++ )
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{
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mtime_t timerDate = (*timer)->getNextDate();
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if( timerDate < nextDate )
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{
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nextTimer = *timer;
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nextDate = timerDate;
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}
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}
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if( nextTimer == NULL )
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{
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this->sleep( 1000 );
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}
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else
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{
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if( nextDate > curDate )
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{
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if( this->sleep( (nextDate - curDate ) / 1000 ) )
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{
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// The sleep has been interrupted: stop here
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return;
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}
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}
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// Execute the timer callback
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if( ! nextTimer->execute() )
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{
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// Remove the timer if execute() returned false
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m_timers.remove( nextTimer );
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}
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}
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}
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bool X11TimerLoop::sleep( int delay )
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{
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struct pollfd ufd;
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memset( &ufd, 0, sizeof (ufd) );
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ufd.fd = m_connectionNumber;
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ufd.events = POLLIN;
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// Wait for an X11 event, or timeout
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return poll( &ufd, 1, delay ) > 0;
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}
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#endif
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