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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef _THRIFT_CONCURRENCY_TIMERMANAGER_H_
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#define _THRIFT_CONCURRENCY_TIMERMANAGER_H_ 1
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#include "Exception.h"
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#include "Monitor.h"
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#include "Thread.h"
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#include <boost/shared_ptr.hpp>
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#include <map>
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#include <time.h>
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namespace apache { namespace thrift { namespace concurrency {
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/**
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* Timer Manager
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*
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* This class dispatches timer tasks when they fall due.
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*
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* @version $Id:$
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*/
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class TimerManager {
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public:
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TimerManager();
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virtual ~TimerManager();
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virtual boost::shared_ptr<const ThreadFactory> threadFactory() const;
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virtual void threadFactory(boost::shared_ptr<const ThreadFactory> value);
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/**
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* Starts the timer manager service
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*
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* @throws IllegalArgumentException Missing thread factory attribute
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*/
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virtual void start();
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/**
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* Stops the timer manager service
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*/
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virtual void stop();
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virtual size_t taskCount() const ;
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/**
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* Adds a task to be executed at some time in the future by a worker thread.
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*
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* @param task The task to execute
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* @param timeout Time in milliseconds to delay before executing task
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*/
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virtual void add(boost::shared_ptr<Runnable> task, int64_t timeout);
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/**
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* Adds a task to be executed at some time in the future by a worker thread.
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*
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* @param task The task to execute
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* @param timeout Absolute time in the future to execute task.
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*/
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virtual void add(boost::shared_ptr<Runnable> task, const struct timespec& timeout);
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/**
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* Removes a pending task
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*
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* @throws NoSuchTaskException Specified task doesn't exist. It was either
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* processed already or this call was made for a
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* task that was never added to this timer
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*
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* @throws UncancellableTaskException Specified task is already being
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* executed or has completed execution.
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*/
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virtual void remove(boost::shared_ptr<Runnable> task);
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enum STATE {
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UNINITIALIZED,
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STARTING,
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STARTED,
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STOPPING,
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STOPPED
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};
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virtual const STATE state() const;
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private:
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boost::shared_ptr<const ThreadFactory> threadFactory_;
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class Task;
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friend class Task;
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std::multimap<int64_t, boost::shared_ptr<Task> > taskMap_;
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size_t taskCount_;
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Monitor monitor_;
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STATE state_;
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class Dispatcher;
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friend class Dispatcher;
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boost::shared_ptr<Dispatcher> dispatcher_;
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boost::shared_ptr<Thread> dispatcherThread_;
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typedef std::multimap<int64_t, boost::shared_ptr<TimerManager::Task> >::iterator task_iterator;
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typedef std::pair<task_iterator, task_iterator> task_range;
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};
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}}} // apache::thrift::concurrency
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#endif // #ifndef _THRIFT_CONCURRENCY_TIMERMANAGER_H_
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