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// **********************************************************************
//
// Copyright (c) 2003-2015 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_OUTGOING_H
#define ICE_OUTGOING_H
#include <IceUtil/Mutex.h>
#include <IceUtil/Monitor.h>
#include <IceUtil/UniquePtr.h>
#include <Ice/RequestHandlerF.h>
#include <Ice/InstanceF.h>
#include <Ice/ConnectionIF.h>
#include <Ice/ReferenceF.h>
#include <Ice/OutputStream.h>
#include <Ice/InputStream.h>
#include <Ice/Current.h>
#include <Ice/ObserverHelper.h>
#include <Ice/ObjectAdapterF.h>
namespace Ice
{
class LocalException;
}
namespace IceInternal
{
class CollocatedRequestHandler; // Forward declaration
class ICE_API OutgoingBase : private IceUtil::noncopyable
{
public:
virtual ~OutgoingBase() { }
virtual void sent() = 0;
virtual void completed(const Ice::Exception&) = 0;
virtual void completed(Ice::InputStream&) = 0;
virtual void retryException(const Ice::Exception&) = 0;
Ice::OutputStream* os() { return &_os; }
void attachRemoteObserver(const Ice::ConnectionInfoPtr& c, const Ice::EndpointPtr& endpt, Ice::Int requestId)
{
const Ice::Int size = static_cast<Ice::Int>(_os.b.size() - IceInternal::headerSize - 4);
_childObserver.attach(_observer.getRemoteObserver(c, endpt, requestId, size));
}
void attachCollocatedObserver(const Ice::ObjectAdapterPtr& adapter, Ice::Int requestId)
{
const Ice::Int size = static_cast<Ice::Int>(_os.b.size() - IceInternal::headerSize - 4);
_childObserver.attach(_observer.getCollocatedObserver(adapter, requestId, size));
}
protected:
OutgoingBase(Instance*);
Ice::OutputStream _os;
#ifdef ICE_CPP11_MAPPING
std::exception_ptr _exception;
#else
IceUtil::UniquePtr<Ice::Exception> _exception;
#endif
bool _sent;
InvocationObserver _observer;
ObserverHelperT<Ice::Instrumentation::ChildInvocationObserver> _childObserver;
IceUtil::Monitor<IceUtil::Mutex> _monitor;
};
class ICE_API ProxyOutgoingBase : public OutgoingBase
{
public:
ProxyOutgoingBase(const Ice::ObjectPrxPtr&, Ice::OperationMode);
~ProxyOutgoingBase();
virtual bool invokeRemote(const Ice::ConnectionIPtr&, bool, bool) = 0;
virtual void invokeCollocated(CollocatedRequestHandler*) = 0;
virtual void sent();
virtual void completed(const Ice::Exception&);
virtual void completed(Ice::InputStream&);
virtual void retryException(const Ice::Exception&);
protected:
bool invokeImpl(); // Returns true if ok, false if user exception.
//
// Optimization. The request handler and the reference may not be
// deleted while a stack-allocated Outgoing still holds it.
//
Ice::ObjectPrxPtr _proxy;
Ice::OperationMode _mode;
RequestHandlerPtr _handler;
IceUtil::Time _invocationTimeoutDeadline;
enum
{
StateUnsent,
StateInProgress,
StateRetry,
StateOK,
StateUserException,
StateLocalException,
StateFailed
} _state;
};
class ICE_API Outgoing : public ProxyOutgoingBase
{
public:
Outgoing(const Ice::ObjectPrxPtr&, const std::string&, Ice::OperationMode, const Ice::Context&);
~Outgoing();
virtual bool invokeRemote(const Ice::ConnectionIPtr&, bool, bool);
virtual void invokeCollocated(CollocatedRequestHandler*);
bool invoke(); // Returns true if ok, false if user exception.
void abort(const Ice::LocalException&);
virtual void completed(Ice::InputStream&);
// Inlined for speed optimization.
Ice::InputStream* startReadParams()
{
_is.startEncapsulation();
return &_is;
}
void endReadParams()
{
_is.endEncapsulation();
}
void readEmptyParams()
{
_is.skipEmptyEncapsulation();
}
void readParamEncaps(const Ice::Byte*& encaps, Ice::Int& sz)
{
_is.readEncapsulation(encaps, sz);
}
Ice::OutputStream* startWriteParams(Ice::FormatType format)
{
_os.startEncapsulation(_encoding, format);
return &_os;
}
void endWriteParams()
{
_os.endEncapsulation();
}
void writeEmptyParams()
{
_os.writeEmptyEncapsulation(_encoding);
}
void writeParamEncaps(const Ice::Byte* encaps, Ice::Int size)
{
if(size == 0)
{
_os.writeEmptyEncapsulation(_encoding);
}
else
{
_os.writeEncapsulation(encaps, size);
}
}
bool hasResponse()
{
return !_is.b.empty();
}
void throwUserException();
private:
Ice::EncodingVersion _encoding;
Ice::InputStream _is;
const std::string& _operation;
};
class ProxyFlushBatch : public ProxyOutgoingBase
{
public:
ProxyFlushBatch(const Ice::ObjectPrxPtr&, const std::string&);
virtual bool invokeRemote(const Ice::ConnectionIPtr&, bool, bool);
virtual void invokeCollocated(CollocatedRequestHandler*);
void invoke();
private:
int _batchRequestNum;
};
class ConnectionFlushBatch : public OutgoingBase
{
public:
ConnectionFlushBatch(Ice::ConnectionI*, Instance*, const std::string&);
void invoke();
virtual void sent();
virtual void completed(const Ice::Exception&);
virtual void completed(Ice::InputStream&);
virtual void retryException(const Ice::Exception&);
private:
Ice::ConnectionI* _connection;
};
}
#endif
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