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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.
*
*/
#ifndef _Timer_
#define _Timer_
#include <memory>
#include <queue>
#include <boost/shared_ptr.hpp>
#include <boost/intrusive_ptr.hpp>
#include "qpid/sys/Monitor.h"
#include "qpid/sys/Thread.h"
#include "qpid/sys/Runnable.h"
namespace qpid {
namespace broker {
struct TimerTask
{
const qpid::sys::Duration duration;
typedef boost::shared_ptr<TimerTask> shared_ptr;
qpid::sys::AbsTime time;
volatile bool cancelled;
TimerTask(qpid::sys::Duration timeout);
TimerTask(qpid::sys::AbsTime time);
virtual ~TimerTask();
void reset();
virtual void fire() = 0;
};
struct TimerTaskA : public TimerTask
{
typedef boost::intrusive_ptr<TimerTaskA> intrusive_ptr;
TimerTaskA(qpid::sys::Duration timeout);
TimerTaskA(qpid::sys::AbsTime time);
virtual ~TimerTaskA();
size_t ref_cnt;
inline size_t refcnt(void) { return ref_cnt;}
inline void ref(void) { ref_cnt++; }
inline void unref(void) { ref_cnt--; }
};
struct Later
{
bool operator()(const TimerTask::shared_ptr& a, const TimerTask::shared_ptr& b) const;
};
struct LaterA
{
bool operator()(const TimerTaskA::intrusive_ptr& a, const TimerTaskA::intrusive_ptr& b) const;
};
class Timer : private qpid::sys::Runnable
{
protected:
qpid::sys::Monitor monitor;
std::priority_queue<TimerTask::shared_ptr, std::vector<TimerTask::shared_ptr>, Later> tasks;
qpid::sys::Thread runner;
bool active;
virtual void run();
void signalStop();
public:
Timer();
virtual ~Timer();
void add(TimerTask::shared_ptr task);
void start();
void stop();
};
class TimerA : private qpid::sys::Runnable
{
protected:
qpid::sys::Monitor monitor;
std::priority_queue<TimerTaskA::intrusive_ptr&, std::vector<TimerTaskA::intrusive_ptr>,
LaterA> itasks;
qpid::sys::Thread runner;
bool active;
virtual void run();
void signalStop();
public:
TimerA();
virtual ~TimerA();
void add(TimerTaskA::intrusive_ptr& task);
void start();
void stop();
};
void intrusive_ptr_add_ref(TimerTaskA* r);
void intrusive_ptr_release(TimerTaskA* r);
}
}
#endif
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