mirror of https://github.com/Icinga/icinga2.git
93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 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 EVENTQUEUE_H
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#define EVENTQUEUE_H
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#include "base/i2-base.h"
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#include <stack>
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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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namespace icinga
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{
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enum ThreadState
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{
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ThreadDead,
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ThreadIdle,
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ThreadBusy
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};
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typedef boost::function<void ()> EventQueueCallback;
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struct EventQueueWorkItem
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{
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EventQueueCallback Callback;
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double Timestamp;
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};
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/**
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* An event queue.
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*
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* @ingroup base
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*/
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class I2_BASE_API EventQueue
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{
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public:
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EventQueue(void);
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~EventQueue(void);
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void Stop(void);
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void Join(void);
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void Post(const EventQueueCallback& callback);
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private:
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ThreadState m_ThreadStates[512];
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double m_ThreadUtilization[512];
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int m_ThreadDeaths;
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double m_WaitTime;
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double m_ServiceTime;
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int m_TaskCount;
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double m_MaxLatency;
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boost::mutex m_Mutex;
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boost::condition_variable m_CV;
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bool m_Stopped;
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std::deque<EventQueueWorkItem> m_Events;
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void QueueThreadProc(int tid);
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void ManagerThreadProc(void);
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void SpawnWorker(void);
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void KillWorker(void);
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void UpdateThreadUtilization(int tid, double time, double utilization);
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};
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}
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#endif /* EVENTQUEUE_H */
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