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600aef26dd
* Refactored the 'RDTimeEngine' class. * Added a 'timeengine_test' test harness. Signed-off-by: Fred Gleason <fredg@paravelsystems.com>
96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
// rdtimeengine.cpp
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//
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// An event timer engine.
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//
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// (C) Copyright 2002-2021 Fred Gleason <fredg@paravelsystems.com>
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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 Library General Public License
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// version 2 as published by the Free Software Foundation.
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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
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// License along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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#include "rdtimeengine.h"
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RDTimeEngine::RDTimeEngine(QObject *parent)
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: QObject(parent)
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{
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d_mapper=new QSignalMapper(this);
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connect(d_mapper,SIGNAL(mapped(int)),this,SLOT(timerData(int)));
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}
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RDTimeEngine::~RDTimeEngine()
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{
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clear();
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delete d_mapper;
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}
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void RDTimeEngine::clear()
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{
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for(QMap<int,QTimer *>::const_iterator it=d_timers.begin();
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it!=d_timers.end();it++) {
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d_mapper->removeMappings(it.value());
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delete it.value();
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}
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d_timers.clear();
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d_times.clear();
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}
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QTime RDTimeEngine::event(int id) const
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{
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return d_times.value(id);
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}
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void RDTimeEngine::addEvent(int id,const QTime &time)
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{
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d_times[id]=time;
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d_timers[id]=new QTimer(this);
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d_timers.value(id)->setTimerType(Qt::PreciseTimer);
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d_timers.value(id)->setSingleShot(true);
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d_mapper->setMapping(d_timers.value(id),id);
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connect(d_timers.value(id),SIGNAL(timeout()),d_mapper,SLOT(map()));
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StartEvent(id);
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}
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void RDTimeEngine::removeEvent(int id)
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{
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d_timers.value(id)->stop();
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d_mapper->removeMappings(d_timers.value(id));
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delete d_timers.value(id);
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d_timers.remove(id);
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d_times.remove(id);
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}
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void RDTimeEngine::timerData(int id)
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{
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emit timeout(id);
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StartEvent(id);
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}
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void RDTimeEngine::StartEvent(int id)
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{
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QTime now=QTime::currentTime();
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int interval=now.msecsTo(d_times.value(id));
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if(interval<0) { // Crosses midnight
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interval=
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now.msecsTo(QTime(23,59,59))+1000+QTime(0,0,0).msecsTo(d_times.value(id));
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}
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d_timers.value(id)->start(1+interval);
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}
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