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Diffstat (limited to 'qpid/cpp/src/qpid/amqp_0_10/SessionHandler.h')
-rw-r--r-- | qpid/cpp/src/qpid/amqp_0_10/SessionHandler.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/amqp_0_10/SessionHandler.h b/qpid/cpp/src/qpid/amqp_0_10/SessionHandler.h new file mode 100644 index 0000000000..8b072fa05c --- /dev/null +++ b/qpid/cpp/src/qpid/amqp_0_10/SessionHandler.h @@ -0,0 +1,118 @@ +#ifndef QPID_AMQP_0_10_SESSIONHANDLER_H +#define QPID_AMQP_0_10_SESSIONHANDLER_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/ChannelHandler.h" +#include "qpid/framing/AMQP_AllProxy.h" +#include "qpid/framing/AMQP_AllOperations.h" +#include "qpid/SessionState.h" +#include "qpid/CommonImportExport.h" + +namespace qpid { + +struct SessionException; + +namespace amqp_0_10 { + +/** + * Base SessionHandler with logic common to both client and broker. + * + * A SessionHandler is associated with a channel and can be attached + * to a session state. + */ + +class QPID_COMMON_CLASS_EXTERN SessionHandler : public framing::AMQP_AllOperations::SessionHandler, + public framing::FrameHandler::InOutHandler +{ + public: + QPID_COMMON_EXTERN SessionHandler(framing::FrameHandler* out=0, uint16_t channel=0); + QPID_COMMON_EXTERN ~SessionHandler(); + + void setChannel(uint16_t ch) { channel = ch; } + uint16_t getChannel() const { return channel.get(); } + + void setOutHandler(framing::FrameHandler& h) { channel.next = &h; } + + virtual SessionState* getState() = 0; + virtual framing::FrameHandler* getInHandler() = 0; + + // Non-protocol methods, called locally to initiate some action. + QPID_COMMON_EXTERN void sendDetach(); + QPID_COMMON_EXTERN void sendCompletion(); + QPID_COMMON_EXTERN void sendAttach(bool force); + QPID_COMMON_EXTERN void sendTimeout(uint32_t t); + QPID_COMMON_EXTERN void sendFlush(); + QPID_COMMON_EXTERN void markReadyToSend();//TODO: only needed for inter-broker bridge; cleanup + QPID_COMMON_EXTERN void handleException(const qpid::SessionException& e); + + /** True if the handler is ready to send and receive */ + QPID_COMMON_EXTERN bool ready() const; + + // Protocol methods + QPID_COMMON_EXTERN void attach(const std::string& name, bool force); + QPID_COMMON_EXTERN void attached(const std::string& name); + QPID_COMMON_EXTERN void detach(const std::string& name); + QPID_COMMON_EXTERN void detached(const std::string& name, uint8_t code); + + QPID_COMMON_EXTERN void requestTimeout(uint32_t t); + QPID_COMMON_EXTERN void timeout(uint32_t t); + + QPID_COMMON_EXTERN void commandPoint(const framing::SequenceNumber& id, uint64_t offset); + QPID_COMMON_EXTERN void expected(const framing::SequenceSet& commands, const framing::Array& fragments); + QPID_COMMON_EXTERN void confirmed(const framing::SequenceSet& commands,const framing::Array& fragments); + QPID_COMMON_EXTERN void completed(const framing::SequenceSet& commands, bool timelyReply); + QPID_COMMON_EXTERN void knownCompleted(const framing::SequenceSet& commands); + QPID_COMMON_EXTERN void flush(bool expected, bool confirmed, bool completed); + QPID_COMMON_EXTERN void gap(const framing::SequenceSet& commands); + + protected: + QPID_COMMON_EXTERN virtual void invoke(const framing::AMQMethodBody& m); + + virtual void setState(const std::string& sessionName, bool force) = 0; + virtual void connectionException(framing::connection::CloseCode code, const std::string& msg) = 0; + virtual void channelException(framing::session::DetachCode, const std::string& msg) = 0; + virtual void executionException(framing::execution::ErrorCode, const std::string& msg) = 0; + virtual void detaching() = 0; + + // Notification of events + virtual void readyToSend() {} + virtual void readyToReceive() {} + + QPID_COMMON_EXTERN virtual void handleDetach(); + QPID_COMMON_EXTERN virtual void handleIn(framing::AMQFrame&); + QPID_COMMON_EXTERN virtual void handleOut(framing::AMQFrame&); + + framing::ChannelHandler channel; + + private: + void checkAttached(); + void sendCommandPoint(const SessionPoint&); + + framing::AMQP_AllProxy::Session peer; + std::string name; + bool awaitingDetached; + bool sendReady, receiveReady; +}; +}} // namespace qpid::amqp_0_10 + +#endif /*!QPID_AMQP_0_10_SESSIONHANDLER_H*/ |