MMDVMHost-Private/Timer.cpp

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2016-01-14 18:45:04 +00:00
/*
* Copyright (C) 2009,2010,2015 by Jonathan Naylor G4KLX
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "Timer.h"
#include <cstdio>
#include <cassert>
CTimer::CTimer(unsigned int ticksPerSec, unsigned int secs, unsigned int msecs) :
m_ticksPerSec(ticksPerSec),
m_timeout(0U),
m_timer(0U)
{
assert(ticksPerSec > 0U);
if (secs > 0U || msecs > 0U) {
// m_timeout = ((secs * 1000U + msecs) * m_ticksPerSec) / 1000U + 1U;
unsigned long long temp = (secs * 1000ULL + msecs) * m_ticksPerSec;
m_timeout = (unsigned int)(temp / 1000ULL + 1ULL);
}
}
CTimer::~CTimer()
{
}
void CTimer::setTimeout(unsigned int secs, unsigned int msecs)
{
if (secs > 0U || msecs > 0U) {
// m_timeout = ((secs * 1000U + msecs) * m_ticksPerSec) / 1000U + 1U;
unsigned long long temp = (secs * 1000ULL + msecs) * m_ticksPerSec;
m_timeout = (unsigned int)(temp / 1000ULL + 1ULL);
} else {
m_timeout = 0U;
m_timer = 0U;
}
}
unsigned int CTimer::getTimeout() const
{
if (m_timeout == 0U)
return 0U;
return (m_timeout - 1U) / m_ticksPerSec;
}
unsigned int CTimer::getTimer() const
{
if (m_timer == 0U)
return 0U;
return (m_timer - 1U) / m_ticksPerSec;
}