mirror of https://github.com/Icinga/icinga2.git
157 lines
4.2 KiB
C++
157 lines
4.2 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2016 Icinga Development Team (https://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 SOCKETEVENTS_H
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#define SOCKETEVENTS_H
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#include "base/i2-base.hpp"
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#include "base/socket.hpp"
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#include <boost/thread.hpp>
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#ifndef _WIN32
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# include <poll.h>
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#endif /* _WIN32 */
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namespace icinga
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{
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/**
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* Socket event interface
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*
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* @ingroup base
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*/
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class I2_BASE_API SocketEvents
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{
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public:
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~SocketEvents(void);
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virtual void OnEvent(int revents);
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void Unregister(void);
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void ChangeEvents(int events);
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bool IsHandlingEvents(void) const;
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void *GetEnginePrivate(void) const;
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void SetEnginePrivate(void *priv);
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protected:
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SocketEvents(const Socket::Ptr& socket, Object *lifesupportObject);
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private:
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int m_ID;
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SOCKET m_FD;
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bool m_Events;
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void *m_EnginePrivate;
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static int m_NextID;
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static void InitializeEngine(void);
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void WakeUpThread(bool wait = false);
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void Register(Object *lifesupportObject);
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friend class SocketEventEnginePoll;
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friend class SocketEventEngineEpoll;
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};
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#define SOCKET_IOTHREADS 8
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struct SocketEventDescriptor
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{
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int Events;
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SocketEvents *EventInterface;
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Object *LifesupportObject;
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SocketEventDescriptor(void)
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: Events(POLLIN), EventInterface(NULL), LifesupportObject(NULL)
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{ }
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};
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struct EventDescription
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{
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int REvents;
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SocketEventDescriptor Descriptor;
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Object::Ptr LifesupportReference;
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};
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class I2_BASE_API SocketEventEngine
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{
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public:
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void Start(void);
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void WakeUpThread(int sid, bool wait);
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boost::mutex& GetMutex(int tid);
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protected:
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virtual void InitializeThread(int tid) = 0;
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virtual void ThreadProc(int tid) = 0;
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virtual void Register(SocketEvents *se, Object *lifesupportObject) = 0;
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virtual void Unregister(SocketEvents *se) = 0;
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virtual void ChangeEvents(SocketEvents *se, int events) = 0;
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boost::thread m_Threads[SOCKET_IOTHREADS];
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SOCKET m_EventFDs[SOCKET_IOTHREADS][2];
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bool m_FDChanged[SOCKET_IOTHREADS];
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boost::mutex m_EventMutex[SOCKET_IOTHREADS];
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boost::condition_variable m_CV[SOCKET_IOTHREADS];
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std::map<SOCKET, SocketEventDescriptor> m_Sockets[SOCKET_IOTHREADS];
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friend class SocketEvents;
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};
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class I2_BASE_API SocketEventEnginePoll : public SocketEventEngine
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{
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public:
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virtual void Register(SocketEvents *se, Object *lifesupportObject);
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virtual void Unregister(SocketEvents *se);
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virtual void ChangeEvents(SocketEvents *se, int events);
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protected:
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virtual void InitializeThread(int tid);
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virtual void ThreadProc(int tid);
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};
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#ifdef __linux__
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class I2_BASE_API SocketEventEngineEpoll : public SocketEventEngine
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{
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public:
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virtual void Register(SocketEvents *se, Object *lifesupportObject);
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virtual void Unregister(SocketEvents *se);
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virtual void ChangeEvents(SocketEvents *se, int events);
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protected:
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virtual void InitializeThread(int tid);
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virtual void ThreadProc(int tid);
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private:
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SOCKET m_PollFDs[SOCKET_IOTHREADS];
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static int PollToEpoll(int events);
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static int EpollToPoll(int events);
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};
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#endif /* __linux__ */
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}
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#endif /* SOCKETEVENTS_H */
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