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// **********************************************************************
//
// Copyright (c) 2003-2007 ZeroC, Inc. All rights reserved.
//
// This copy of Ice-E is licensed to you under the terms described in the
// ICEE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef ICEE_CONNECTION_H
#define ICEE_CONNECTION_H
#include <IceE/ConnectionF.h>
#include <IceE/OutgoingConnectionFactoryF.h>
#include <IceE/InstanceF.h>
#include <IceE/TransceiverF.h>
#include <IceE/EndpointF.h>
#include <IceE/LoggerF.h>
#include <IceE/TraceLevelsF.h>
#ifndef ICEE_PURE_CLIENT
# include <IceE/ObjectAdapterF.h>
# include <IceE/ServantManagerF.h>
# include <IceE/IncomingConnectionFactoryF.h>
# include <IceE/Incoming.h>
#endif
#include <IceE/Mutex.h>
#include <IceE/Monitor.h>
#include <IceE/Time.h>
#include <IceE/Thread.h> // For ThreadPerConnection.
#include <IceE/Identity.h>
#include <IceE/BasicStream.h>
namespace IceInternal
{
class Outgoing;
}
namespace Ice
{
class LocalException;
class ICE_API Connection : public IceUtil::Monitor<IceUtil::Mutex>, public IceUtil::Shared
{
public:
void waitForValidation();
enum DestructionReason
{
#ifndef ICEE_PURE_CLIENT
ObjectAdapterDeactivated,
#endif
CommunicatorDestroyed
};
void activate();
#ifndef ICEE_PURE_CLIENT
void hold();
#endif
void destroy(DestructionReason);
void close(bool); // From Connection.
bool isDestroyed() const;
bool isFinished() const;
void throwException() const; // Throws the connection exception if destroyed.
#ifndef ICEE_PURE_CLIENT
void waitUntilHolding() const;
#endif
void waitUntilFinished(); // Not const, as this might close the connection upon timeout.
void sendRequest(IceInternal::BasicStream*, IceInternal::Outgoing*);
#ifdef ICEE_HAS_BATCH
void prepareBatchRequest(IceInternal::BasicStream*);
void finishBatchRequest(IceInternal::BasicStream*);
void abortBatchRequest();
void flushBatchRequests(); // From Connection.
#endif
#ifndef ICEE_PURE_CLIENT
void sendResponse(IceInternal::BasicStream*);
void sendNoResponse();
#endif
IceInternal::EndpointPtr endpoint() const;
#ifndef ICEE_PURE_CLIENT
void setAdapter(const ObjectAdapterPtr&); // From Connection.
ObjectAdapterPtr getAdapter() const; // From Connection.
ObjectPrx createProxy(const Identity&) const; // From Connection.
#endif
std::string type() const; // From Connection.
Ice::Int timeout() const; // From Connection.
std::string toString() const; // From Connection
private:
#ifndef ICEE_PURE_CLIENT
Connection(const IceInternal::InstancePtr&, const IceInternal::TransceiverPtr&,
const IceInternal::EndpointPtr&, const ObjectAdapterPtr&);
#else
Connection(const IceInternal::InstancePtr&, const IceInternal::TransceiverPtr&,
const IceInternal::EndpointPtr&);
#endif
~Connection();
#ifndef ICEE_PURE_CLIENT
friend class IceInternal::IncomingConnectionFactory;
#endif
friend class IceInternal::OutgoingConnectionFactory;
enum State
{
StateNotValidated,
StateActive,
#ifndef ICEE_PURE_CLIENT
StateHolding,
#endif
StateClosing,
StateClosed
};
void validate();
void setState(State, const LocalException&);
void setState(State);
void initiateShutdown() const;
#ifndef ICEE_PURE_CLIENT
void readStreamAndParseMessage(IceInternal::BasicStream&, Int&, Int&);
#else
void readStreamAndParseMessage(IceInternal::BasicStream&, Int&);
#endif
#ifdef ICEE_HAS_BATCH
void flushBatchRequestsInternal(bool);
void resetBatch(bool);
#endif
#ifndef ICEE_PURE_BLOCKING_CLIENT
void run();
class ThreadPerConnection : public IceUtil::Thread
{
public:
ThreadPerConnection(const ConnectionPtr&);
virtual void run();
private:
ConnectionPtr _connection;
};
friend class ThreadPerConnection;
// Defined as mutable because "isFinished() const" sets this to 0.
mutable IceUtil::ThreadPtr _threadPerConnection;
#endif
const IceInternal::InstancePtr _instance;
IceInternal::TransceiverPtr _transceiver;
const std::string _desc;
const std::string _type;
const IceInternal::EndpointPtr _endpoint;
const LoggerPtr _logger;
const IceInternal::TraceLevelsPtr _traceLevels;
const bool _warn;
#ifndef ICEE_PURE_CLIENT
IceInternal::Incoming _in;
#endif
#ifndef ICEE_PURE_BLOCKING_CLIENT
IceInternal::BasicStream _stream;
#endif
#ifdef ICEE_HAS_BATCH
const bool _batchAutoFlush;
IceInternal::BasicStream _batchStream;
bool _batchStreamInUse;
int _batchRequestNum;
size_t _batchMarker;
#endif
#if !defined(ICEE_PURE_BLOCKING_CLIENT)
bool _blocking;
#endif
std::auto_ptr<LocalException> _exception;
//
// Technically this isn't necessary for PURE_CLIENT, but its a
// pain to get rid of.
//
int _dispatchCount;
State _state; // The current state.
IceUtil::Time _stateTime; // The last time when the state was changed.
//
// We have a separate monitor for sending, so that we don't block
// the whole connection when we do a blocking send. The monitor is
// also used by outgoing calls to wait for replies when thread per
// connection is used. The _nextRequestId, _requests and
// _requestsHint attributes are also protected by this monitor.
// Calls on the (non thread-safe) Outgoing objects should also
// only be made with this monitor locked.
//
// Finally, it's safe to lock the _sendMonitor with the connection
// already locked. The contrary isn't permitted.
//
IceUtil::Monitor<IceUtil::Mutex> _sendMonitor;
Int _nextRequestId;
#ifndef ICEE_PURE_BLOCKING_CLIENT
std::map<Int, IceInternal::Outgoing*> _requests;
std::map<Int, IceInternal::Outgoing*>::iterator _requestsHint;
#endif
};
}
#endif
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