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Diffstat (limited to 'qpid/cpp/src/qpid/broker/Connection.h')
| -rw-r--r-- | qpid/cpp/src/qpid/broker/Connection.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/Connection.h b/qpid/cpp/src/qpid/broker/Connection.h new file mode 100644 index 0000000000..8f1aa701ef --- /dev/null +++ b/qpid/cpp/src/qpid/broker/Connection.h @@ -0,0 +1,216 @@ +#ifndef QPID_BROKER_CONNECTION_H +#define QPID_BROKER_CONNECTION_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 <memory> +#include <sstream> +#include <vector> +#include <queue> + +#include <boost/ptr_container/ptr_map.hpp> + +#include "qpid/broker/ConnectionHandler.h" +#include "qpid/broker/ConnectionState.h" +#include "qpid/broker/SessionHandler.h" +#include "qmf/org/apache/qpid/broker/Connection.h" +#include "qpid/Exception.h" +#include "qpid/RefCounted.h" +#include "qpid/framing/AMQFrame.h" +#include "qpid/framing/AMQP_ClientProxy.h" +#include "qpid/framing/AMQP_ServerOperations.h" +#include "qpid/framing/ProtocolVersion.h" +#include "qpid/management/ManagementAgent.h" +#include "qpid/management/Manageable.h" +#include "qpid/ptr_map.h" +#include "qpid/sys/AggregateOutput.h" +#include "qpid/sys/ConnectionInputHandler.h" +#include "qpid/sys/ConnectionOutputHandler.h" +#include "qpid/sys/SecuritySettings.h" +#include "qpid/sys/Socket.h" +#include "qpid/sys/TimeoutHandler.h" +#include "qpid/sys/Mutex.h" + +#include <boost/ptr_container/ptr_map.hpp> +#include <boost/bind.hpp> + +#include <algorithm> + +namespace qpid { +namespace broker { + +class Broker; +class LinkRegistry; +class SecureConnection; +struct ConnectionTimeoutTask; + +class Connection : public sys::ConnectionInputHandler, + public ConnectionState, + public RefCounted +{ + public: + /** + * Listener that can be registered with a Connection to be informed of errors. + */ + class ErrorListener + { + public: + virtual ~ErrorListener() {} + virtual void sessionError(uint16_t channel, const std::string&) = 0; + virtual void connectionError(const std::string&) = 0; + }; + + Connection(sys::ConnectionOutputHandler* out, + Broker& broker, + const std::string& mgmtId, + const qpid::sys::SecuritySettings&, + bool isLink = false, + uint64_t objectId = 0, + bool shadow=false, + bool delayManagement = false); + + ~Connection (); + + /** Get the SessionHandler for channel. Create if it does not already exist */ + SessionHandler& getChannel(framing::ChannelId channel); + + /** Close the connection */ + void close(framing::connection::CloseCode code, const std::string& text); + + // ConnectionInputHandler methods + void received(framing::AMQFrame& frame); + void idleOut(); + void idleIn(); + bool doOutput(); + void closed(); + + void closeChannel(framing::ChannelId channel); + + // Manageable entry points + management::ManagementObject* GetManagementObject (void) const; + management::Manageable::status_t + ManagementMethod (uint32_t methodId, management::Args& args, std::string&); + + void requestIOProcessing (boost::function0<void>); + void recordFromServer (const framing::AMQFrame& frame); + void recordFromClient (const framing::AMQFrame& frame); + std::string getAuthMechanism(); + std::string getAuthCredentials(); + std::string getUsername(); + std::string getPassword(); + std::string getHost(); + uint16_t getPort(); + void notifyConnectionForced(const std::string& text); + void setUserId(const std::string& uid); + void raiseConnectEvent(); + const std::string& getUserId() const { return ConnectionState::getUserId(); } + const std::string& getMgmtId() const { return mgmtId; } + management::ManagementAgent* getAgent() const { return agent; } + void setFederationLink(bool b); + /** Connection does not delete the listener. 0 resets. */ + void setErrorListener(ErrorListener* l) { errorListener=l; } + ErrorListener* getErrorListener() { return errorListener; } + + void setHeartbeatInterval(uint16_t heartbeat); + void sendHeartbeat(); + void restartTimeout(); + void abort(); + + template <class F> void eachSessionHandler(F f) { + for (ChannelMap::iterator i = channels.begin(); i != channels.end(); ++i) + f(*ptr_map_ptr(i)); + } + + void sendClose(); + void setSecureConnection(SecureConnection* secured); + + /** True if this is a shadow connection in a cluster. */ + bool isShadow() { return shadow; } + + // Used by cluster to update connection status + sys::AggregateOutput& getOutputTasks() { return outputTasks; } + + /** Cluster delays adding management object in the constructor then calls this. */ + void addManagementObject(); + + const qpid::sys::SecuritySettings& getExternalSecuritySettings() const + { + return securitySettings; + } + + /** @return true if the initial connection negotiation is complete. */ + bool isOpen(); + + // Used by cluster during catch-up, see cluster::OutputInterceptor + void doIoCallbacks(); + + private: + typedef boost::ptr_map<framing::ChannelId, SessionHandler> ChannelMap; + typedef std::vector<boost::shared_ptr<Queue> >::iterator queue_iterator; + + ChannelMap channels; + qpid::sys::SecuritySettings securitySettings; + ConnectionHandler adapter; + const bool isLink; + bool mgmtClosing; + const std::string mgmtId; + sys::Mutex ioCallbackLock; + std::queue<boost::function0<void> > ioCallbacks; + qmf::org::apache::qpid::broker::Connection* mgmtObject; + LinkRegistry& links; + management::ManagementAgent* agent; + sys::Timer& timer; + boost::intrusive_ptr<sys::TimerTask> heartbeatTimer; + boost::intrusive_ptr<ConnectionTimeoutTask> timeoutTimer; + ErrorListener* errorListener; + uint64_t objectId; + bool shadow; + /** + * Chained ConnectionOutputHandler that allows outgoing frames to be + * tracked (for updating mgmt stats). + */ + class OutboundFrameTracker : public sys::ConnectionOutputHandler + { + public: + OutboundFrameTracker(Connection&); + void close(); + size_t getBuffered() const; + void abort(); + void activateOutput(); + void giveReadCredit(int32_t credit); + void send(framing::AMQFrame&); + void wrap(sys::ConnectionOutputHandlerPtr&); + private: + Connection& con; + sys::ConnectionOutputHandler* next; + }; + OutboundFrameTracker outboundTracker; + + + void sent(const framing::AMQFrame& f); + public: + qmf::org::apache::qpid::broker::Connection* getMgmtObject() { return mgmtObject; } +}; + +}} + +#endif /*!QPID_BROKER_CONNECTION_H*/ |