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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "Timer.h"
#include <iostream>
using qpid::sys::AbsTime;
using qpid::sys::Duration;
using qpid::sys::Monitor;
using qpid::sys::Thread;
using namespace qpid::broker;
TimerTask::TimerTask(Duration timeout) :
duration(timeout), time(AbsTime::now(), timeout), cancelled(false) {}
TimerTask::TimerTask(AbsTime _time) :
duration(0), time(_time), cancelled(false) {}
TimerTask::~TimerTask(){}
void TimerTask::reset() { time.reset(AbsTime::now(), duration); }
Timer::Timer() : active(false)
{
start();
}
Timer::~Timer()
{
stop();
}
void Timer::run()
{
Monitor::ScopedLock l(monitor);
while(active){
if (tasks.empty()) {
monitor.wait();
} else {
intrusive_ptr<TimerTask> t = tasks.top();
if (t->cancelled) {
tasks.pop();
} else if(t->time < AbsTime::now()) {
tasks.pop();
t->fire();
} else {
monitor.wait(t->time);
}
}
}
}
void Timer::add(intrusive_ptr<TimerTask> task)
{
Monitor::ScopedLock l(monitor);
tasks.push(task);
monitor.notify();
}
void Timer::start()
{
Monitor::ScopedLock l(monitor);
if (!active) {
active = true;
runner = Thread(this);
}
}
void Timer::stop()
{
{
Monitor::ScopedLock l(monitor);
if (!active) return;
active = false;
monitor.notifyAll();
}
runner.join();
}
bool Later::operator()(const intrusive_ptr<TimerTask>& a,
const intrusive_ptr<TimerTask>& b) const
{
return a.get() && b.get() && a->time > b->time;
}
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