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// **********************************************************************
//
// Copyright (c) 2002
// MutableRealms, Inc.
// Huntsville, AL, USA
//
// All Rights Reserved
//
// **********************************************************************
#ifndef ICE_THREAD_POOL_H
#define ICE_THREAD_POOL_H
#include <IceUtil/Shared.h>
#include <IceUtil/Mutex.h>
#include <IceUtil/Monitor.h>
#include <IceUtil/Thread.h>
#include <Ice/ThreadPoolF.h>
#include <Ice/InstanceF.h>
#include <Ice/LoggerF.h>
#include <Ice/PropertiesF.h>
#include <Ice/EventHandlerF.h>
#include <list>
#ifndef _WIN32
# define SOCKET int
#endif
namespace IceInternal
{
class BasicStream;
class ThreadPool : public ::IceUtil::Shared, public IceUtil::Monitor<IceUtil::Mutex>
{
public:
void _register(SOCKET, const EventHandlerPtr&);
void unregister(SOCKET);
void promoteFollower();
void initiateShutdown(); // Signal-safe shutdown initiation.
void waitUntilFinished();
void joinWithAllThreads();
private:
ThreadPool(const InstancePtr&, bool);
virtual ~ThreadPool();
void destroy();
friend class Instance;
bool clearInterrupt();
void setInterrupt(char);
void run();
void read(const EventHandlerPtr&);
InstancePtr _instance;
bool _destroyed;
SOCKET _maxFd;
SOCKET _minFd;
SOCKET _lastFd;
SOCKET _fdIntrRead;
SOCKET _fdIntrWrite;
fd_set _fdSet;
std::list<std::pair<SOCKET, EventHandlerPtr> > _changes; // Event handler set for addition; null for removal.
std::map<SOCKET, EventHandlerPtr> _handlerMap;
int _handlers;
int _timeout;
::IceUtil::Mutex _threadMutex;
bool _multipleThreads;
class EventHandlerThread : public ::IceUtil::Thread
{
public:
EventHandlerThread(const ThreadPoolPtr&);
virtual void run();
private:
ThreadPoolPtr _pool;
};
friend class EventHandlerThread;
std::vector<IceUtil::ThreadControl> _threads; // Control for all threads, running or not.
int _threadNum; // Number of running threads.
};
}
#endif
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