daemon/src/core/WallClock.cpp

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/*
 * Clock.cpp
 *
 *  Created on: 17.07.2009
 *      Author: morgenro
 */

#include "core/WallClock.h"
#include "core/TimeEvent.h"
#include <ibrdtn/utils/Clock.h>

namespace dtn
{
        namespace core
        {
                WallClock::WallClock(size_t frequency) : _frequency(frequency), _next(0), _running(false)
                {
                }

                WallClock::~WallClock()
                {
                        if (isRunning())
                        {
                                componentDown();
                        }
                }

                void WallClock::sync()
                {
                        wait();
                }

                void WallClock::componentUp()
                {
                }

                void WallClock::componentDown()
                {
                        _running = false;
                        join();
                }

                void WallClock::componentRun()
                {
                        _running = true;

                        while (_running)
                        {
                                size_t dtntime = dtn::utils::Clock::getTime();

                                if (dtntime == 0)
                                {
                                        TimeEvent::raise(dtntime, TIME_SECOND_TICK);
                                        go();
                                        this->sleep(500);
                                }
                                else if (_next <= dtntime)
                                {
                                        TimeEvent::raise(dtntime, TIME_SECOND_TICK);
                                        go();
                                        _next = dtntime + _frequency;
                                }

                                this->sleep(500);
                                yield();
                        }
                }
        }
}

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