mirror of
https://github.com/Icinga/icinga2.git
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105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
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* *
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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 St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef WORKQUEUE_H
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#define WORKQUEUE_H
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#include "base/i2-base.hpp"
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#include "base/timer.hpp"
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#include <deque>
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#include <boost/function.hpp>
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#include <boost/thread/thread.hpp>
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#include <boost/thread/mutex.hpp>
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#include <boost/thread/condition_variable.hpp>
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#include <boost/exception_ptr.hpp>
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namespace icinga
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{
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typedef boost::function<void (void)> WorkCallback;
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struct WorkItem
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{
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WorkCallback Callback;
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bool AllowInterleaved;
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};
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/**
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* A workqueue.
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*
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* @ingroup base
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*/
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class I2_BASE_API WorkQueue
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{
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public:
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typedef boost::function<void (boost::exception_ptr)> ExceptionCallback;
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WorkQueue(size_t maxItems = 25000);
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~WorkQueue(void);
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void Enqueue(const WorkCallback& callback, bool allowInterleaved = false);
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void Join(bool stop = false);
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boost::thread::id GetThreadId(void) const;
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void SetExceptionCallback(const ExceptionCallback& callback);
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size_t GetLength(void);
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private:
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int m_ID;
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static int m_NextID;
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boost::mutex m_Mutex;
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boost::condition_variable m_CVEmpty;
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boost::condition_variable m_CVFull;
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boost::condition_variable m_CVStarved;
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boost::thread m_Thread;
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size_t m_MaxItems;
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bool m_Stopped;
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bool m_Processing;
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std::deque<WorkItem> m_Items;
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ExceptionCallback m_ExceptionCallback;
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Timer::Ptr m_StatusTimer;
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void WorkerThreadProc(void);
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void StatusTimerHandler(void);
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static void DefaultExceptionCallback(boost::exception_ptr exp);
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};
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class I2_BASE_API ParallelWorkQueue
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{
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public:
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ParallelWorkQueue(void);
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~ParallelWorkQueue(void);
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void Enqueue(const boost::function<void(void)>& callback);
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void Join(void);
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private:
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unsigned int m_QueueCount;
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WorkQueue *m_Queues;
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unsigned int m_Index;
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};
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}
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#endif /* WORKQUEUE_H */
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