144 lines
3.3 KiB
C++
144 lines
3.3 KiB
C++
/*
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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 License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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 Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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/** \file
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* \ingroup GHOST
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*/
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/**
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* Copyright (C) 2001 NaN Technologies B.V.
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*/
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#include "GHOST_TimerManager.h"
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#include <algorithm>
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#include "GHOST_TimerTask.h"
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GHOST_TimerManager::GHOST_TimerManager()
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{
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}
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GHOST_TimerManager::~GHOST_TimerManager()
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{
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disposeTimers();
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}
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uint32_t GHOST_TimerManager::getNumTimers()
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{
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return (uint32_t)m_timers.size();
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}
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bool GHOST_TimerManager::getTimerFound(GHOST_TimerTask *timer)
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{
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TTimerVector::const_iterator iter = std::find(m_timers.begin(), m_timers.end(), timer);
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return iter != m_timers.end();
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}
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GHOST_TSuccess GHOST_TimerManager::addTimer(GHOST_TimerTask *timer)
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{
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GHOST_TSuccess success;
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if (!getTimerFound(timer)) {
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/* Add the timer task. */
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m_timers.push_back(timer);
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success = GHOST_kSuccess;
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}
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else {
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success = GHOST_kFailure;
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}
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return success;
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}
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GHOST_TSuccess GHOST_TimerManager::removeTimer(GHOST_TimerTask *timer)
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{
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GHOST_TSuccess success;
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TTimerVector::iterator iter = std::find(m_timers.begin(), m_timers.end(), timer);
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if (iter != m_timers.end()) {
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/* Remove the timer task. */
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m_timers.erase(iter);
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delete timer;
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success = GHOST_kSuccess;
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}
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else {
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success = GHOST_kFailure;
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}
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return success;
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}
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uint64_t GHOST_TimerManager::nextFireTime()
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{
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uint64_t smallest = GHOST_kFireTimeNever;
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TTimerVector::iterator iter;
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for (iter = m_timers.begin(); iter != m_timers.end(); ++iter) {
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uint64_t next = (*iter)->getNext();
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if (next < smallest)
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smallest = next;
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}
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return smallest;
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}
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bool GHOST_TimerManager::fireTimers(uint64_t time)
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{
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TTimerVector::iterator iter;
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bool anyProcessed = false;
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for (iter = m_timers.begin(); iter != m_timers.end(); ++iter) {
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if (fireTimer(time, *iter))
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anyProcessed = true;
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}
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return anyProcessed;
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}
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bool GHOST_TimerManager::fireTimer(uint64_t time, GHOST_TimerTask *task)
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{
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uint64_t next = task->getNext();
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/* Check if the timer should be fired. */
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if (time > next) {
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/* Fire the timer. */
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GHOST_TimerProcPtr timerProc = task->getTimerProc();
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uint64_t start = task->getStart();
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timerProc(task, time - start);
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/* Update the time at which we will fire it again. */
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uint64_t interval = task->getInterval();
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uint64_t numCalls = (next - start) / interval;
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numCalls++;
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next = start + numCalls * interval;
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task->setNext(next);
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return true;
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}
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else {
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return false;
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}
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}
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void GHOST_TimerManager::disposeTimers()
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{
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while (m_timers.empty() == false) {
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delete m_timers[0];
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m_timers.erase(m_timers.begin());
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}
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}
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