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#ifndef QPID_CLIENT_SESSIONBASE_H
#define QPID_CLIENT_SESSIONBASE_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/framing/Uuid.h"
#include "qpid/framing/amqp_structs.h"
#include "qpid/framing/ProtocolVersion.h"
#include "qpid/framing/MethodContent.h"
#include "qpid/framing/TransferContent.h"
#include "qpid/client/Completion.h"
#include "qpid/client/ConnectionImpl.h"
#include "qpid/client/Response.h"
#include "qpid/client/SessionCore.h"
#include "qpid/client/TypedResult.h"
#include "qpid/shared_ptr.h"
#include <string>
namespace qpid {
namespace client {
using std::string;
using framing::Content;
using framing::FieldTable;
using framing::MethodContent;
using framing::SequenceNumberSet;
using framing::Uuid;
/** \defgroup clientapi Synchronous mode of a session.
*
* SYNC means that Session functions do not return until the remote
* broker has confirmed that the command was executed.
*
* ASYNC means that the client sends commands asynchronously, Session
* functions return immediately.
*
* ASYNC mode gives better performance for high-volume traffic, but
* requires some additional caution:
*
* Session functions return immediately. If the command causes an
* exception on the broker, the exception will be thrown on a
* <em>later</em> function call.
*
* If you need to notify some extenal agent that some actions have
* been taken (e.g. binding queues to exchanages), you must call
* Session::sync() first, to ensure that all the commands are complete.
*
* You can freely switch between modes by calling Session::setSynchronous()
*
* @see Session::sync(), Session::setSynchronous()
*/
enum SynchronousMode { SYNC=true, ASYNC=false };
/**
* Basic session operations that are not derived from AMQP XML methods.
*/
class SessionBase
{
public:
SessionBase();
~SessionBase();
/** Get the next message frame-set from the session. */
framing::FrameSet::shared_ptr get();
/** Get the session ID */
Uuid getId() const;
/**
* In synchronous mode, wait for the broker's response before
* returning. Note this gives lower throughput than asynchronous
* mode.
*
* In asynchronous mode commands are sent without waiting
* for a respose (you can use the returned Completion object
* to wait for completion.)
*
* @see SynchronousMode
*/
void setSynchronous(SynchronousMode mode);
void setSynchronous(bool set);
bool isSynchronous() const;
SynchronousMode getSynchronous() const;
/**
* Suspend the session, can be resumed on a different connection.
* @see Connection::resume()
*/
void suspend();
/** Close the session */
void close();
/**
* Synchronize with the broker. Wait for all commands issued so far in
* the session to complete.
* @see SynchronousMode
*/
void sync();
Execution& getExecution();
typedef framing::TransferContent DefaultContent;
protected:
shared_ptr<SessionCore> impl;
framing::ProtocolVersion version;
friend class Connection;
SessionBase(shared_ptr<SessionCore>);
};
}} // namespace qpid::client
#endif /*!QPID_CLIENT_SESSIONBASE_H*/
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