Build system reorg, see README and Makefile comments for details.

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@464494 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 199 insertions, 0 deletions

diff --git a/cpp/src/qpid/broker/Channel.h b/cpp/src/qpid/broker/Channel.h
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+++ b/cpp/src/qpid/broker/Channel.h
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+/*
+ *
+ * Copyright (c) 2006 The Apache Software Foundation
+ *
+ * Licensed 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.
+ *
+ */
+#ifndef _Channel_
+#define _Channel_
+
+#include <algorithm>
+#include <map>
+#include "./qpid/framing/AMQContentBody.h"
+#include "./qpid/framing/AMQHeaderBody.h"
+#include "qpid/framing/BasicPublishBody.h"
+#include "./qpid/broker/Binding.h"
+#include "./qpid/broker/Consumer.h"
+#include "./qpid/broker/Message.h"
+#include "./qpid/concurrent/MonitorImpl.h"
+#include "./qpid/broker/NameGenerator.h"
+#include "./qpid/framing/OutputHandler.h"
+#include "./qpid/broker/Queue.h"
+
+namespace qpid {
+    namespace broker {
+        /**
+         * Maintains state for an AMQP channel. Handles incoming and
+         * outgoing messages for that channel.
+         */
+        class Channel{
+        private:
+            class ConsumerImpl : public virtual Consumer{
+                Channel* parent;
+                string tag;
+                Queue::shared_ptr queue;
+                ConnectionToken* const connection;
+                const bool ackExpected;
+                bool blocked;
+            public:
+                ConsumerImpl(Channel* parent, string& tag, Queue::shared_ptr queue, ConnectionToken* const connection, bool ack);
+                virtual bool deliver(Message::shared_ptr& msg);            
+                void cancel();
+                void requestDispatch();
+            };
+
+            typedef std::map<string,ConsumerImpl*>::iterator consumer_iterator; 
+
+            struct AckRecord{
+                Message::shared_ptr msg;
+                Queue::shared_ptr queue;
+                string consumerTag;
+                u_int64_t deliveryTag;
+                bool pull;
+
+                AckRecord(Message::shared_ptr _msg, 
+                          Queue::shared_ptr _queue, 
+                          const string _consumerTag, 
+                          const u_int64_t _deliveryTag) : msg(_msg), 
+                                                          queue(_queue), 
+                                                          consumerTag(_consumerTag),
+                                                          deliveryTag(_deliveryTag),
+                                                          pull(false){}
+
+                AckRecord(Message::shared_ptr _msg, 
+                          Queue::shared_ptr _queue, 
+                          const u_int64_t _deliveryTag) : msg(_msg), 
+                                                          queue(_queue), 
+                                                          consumerTag(""),
+                                                          deliveryTag(_deliveryTag),
+                                                          pull(true){}
+            };
+
+            typedef std::vector<AckRecord>::iterator ack_iterator; 
+
+            class MatchAck{
+                const u_int64_t tag;
+            public:
+                MatchAck(u_int64_t tag);
+                bool operator()(AckRecord& record) const;
+            };
+
+            class Requeue{
+            public:
+                void operator()(AckRecord& record) const;
+            };
+
+            class Redeliver{
+                Channel* const channel;
+            public:
+                Redeliver(Channel* const channel);
+                void operator()(AckRecord& record) const;
+            };
+
+            class CalculatePrefetch{
+                u_int32_t size;
+                u_int16_t count;
+            public:
+                CalculatePrefetch();
+                void operator()(AckRecord& record);
+                u_int32_t getSize();
+                u_int16_t getCount();
+            };
+
+            const int id;
+            qpid::framing::OutputHandler* out;
+            u_int64_t deliveryTag;
+            Queue::shared_ptr defaultQueue;
+            bool transactional;
+            std::map<string, ConsumerImpl*> consumers;
+            u_int32_t prefetchSize;    
+            u_int16_t prefetchCount;    
+            u_int32_t outstandingSize;    
+            u_int16_t outstandingCount;    
+            u_int32_t framesize;
+            Message::shared_ptr message;
+            NameGenerator tagGenerator;
+            std::vector<AckRecord> unacknowledged;
+            qpid::concurrent::MonitorImpl deliveryLock;
+
+            void deliver(Message::shared_ptr& msg, string& tag, Queue::shared_ptr& queue, bool ackExpected);            
+            void checkMessage(const std::string& text);
+            bool checkPrefetch(Message::shared_ptr& msg);
+            void cancel(consumer_iterator consumer);
+
+            template<class Operation> Operation processMessage(Operation route){
+                if(message->isComplete()){
+                    route(message);
+                    message.reset();
+                }
+                return route;
+            }
+
+        
+        public:
+            Channel(qpid::framing::OutputHandler* out, int id, u_int32_t framesize);
+            ~Channel();
+            inline void setDefaultQueue(Queue::shared_ptr queue){ defaultQueue = queue; }
+            inline Queue::shared_ptr getDefaultQueue(){ return defaultQueue; }
+            inline u_int32_t setPrefetchSize(u_int32_t size){ return prefetchSize = size; }
+            inline u_int16_t setPrefetchCount(u_int16_t count){ return prefetchCount = count; }
+            bool exists(const string& consumerTag);
+            void consume(string& tag, Queue::shared_ptr queue, bool acks, bool exclusive, ConnectionToken* const connection = 0);
+            void cancel(const string& tag);
+            bool get(Queue::shared_ptr queue, bool ackExpected);
+            void begin();
+            void close();
+            void commit();
+            void rollback();
+            void ack(u_int64_t deliveryTag, bool multiple);
+            void recover(bool requeue);
+
+            /**
+             * Handles the initial publish request though a
+             * channel. The header and (if applicable) content will be
+             * accumulated through calls to handleHeader() and
+             * handleContent()
+             */
+            void handlePublish(Message* msg);
+
+            /**
+             * A template method that handles a received header and if
+             * there is no content routes it using the functor passed
+             * in.
+             */
+            template<class Operation> Operation handleHeader(qpid::framing::AMQHeaderBody::shared_ptr header, Operation route){
+                checkMessage("Invalid message sequence: got header before publish.");
+                message->setHeader(header);
+                return processMessage(route);
+            }
+
+            /**
+             * A template method that handles a received content and
+             * if this completes the message, routes it using the
+             * functor passed in.
+             */
+            template<class Operation> Operation handleContent(qpid::framing::AMQContentBody::shared_ptr content, Operation route){
+                checkMessage("Invalid message sequence: got content before publish.");
+                message->addContent(content);
+                return processMessage(route);
+            }
+
+        };
+
+        struct InvalidAckException{};
+    }
+}
+
+
+#endif