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// **********************************************************************
//
// Copyright (c) 2003-2008 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICE_SELECTOR_THREAD_H
#define ICE_SELECTOR_THREAD_H
#include <IceUtil/Shared.h>
#include <IceUtil/Handle.h>
#include <IceUtil/Mutex.h>
#include <IceUtil/Monitor.h>
#include <IceUtil/Thread.h>
#include <IceUtil/Timer.h>
#include <Ice/Config.h>
#include <Ice/SelectorThreadF.h>
#include <Ice/InstanceF.h>
#include <Ice/Selector.h>
#if defined(_WIN32)
# include <winsock2.h>
#else
# define SOCKET int
# if defined(ICE_USE_EPOLL)
# include <sys/epoll.h>
# elif defined(__APPLE__)
# include <sys/event.h>
# else
# include <sys/poll.h>
# endif
#endif
#include <deque>
namespace IceInternal
{
class SocketReadyCallback : public IceUtil::TimerTask
{
public:
//
// The selector thread unregisters the callback when socketReady returns SocketStatus.Finished.
//
virtual SocketStatus socketReady(bool) = 0;
//
// The selector thread doesn't unregister the callback when sockectTimeout is called; socketTimeout
// must unregister the callback either explicitly with unregister() or by shutting down the socket
// (if necessary).
//
virtual void socketTimeout() = 0;
private:
void
runTimerTask()
{
this->socketTimeout();
}
friend class SelectorThread;
};
typedef IceUtil::Handle<SocketReadyCallback> SocketReadyCallbackPtr;
class SelectorThread : public IceUtil::Shared, public IceUtil::Monitor<IceUtil::Mutex>
{
public:
SelectorThread(const InstancePtr&);
virtual ~SelectorThread();
void destroy();
void incFdsInUse();
void decFdsInUse();
void _register(SOCKET, const SocketReadyCallbackPtr&, SocketStatus status, int timeout);
void unregister(SOCKET);
void joinWithThread();
private:
void run();
struct SocketInfo
{
SOCKET fd;
SocketReadyCallbackPtr cb;
SocketStatus status;
int timeout;
SocketInfo(SOCKET fd, const SocketReadyCallbackPtr& cb, SocketStatus status, int timeout)
{
this->fd = fd;
this->cb = cb;
this->status = status;
this->timeout = timeout;
}
};
class HelperThread : public IceUtil::Thread
{
public:
HelperThread(const SelectorThreadPtr&);
virtual void run();
private:
SelectorThreadPtr _selectorThread;
};
friend class HelperThread;
InstancePtr _instance;
bool _destroyed;
SOCKET _maxFd;
SOCKET _minFd;
SOCKET _fdIntrRead;
SOCKET _fdIntrWrite;
Selector _selector;
std::deque<SocketInfo> _changes;
IceUtil::ThreadPtr _thread;
IceUtil::TimerPtr _timer;
};
}
#endif
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