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authorRajith Muditha Attapattu <rajith@apache.org>2007-11-20 13:59:54 +0000
committerRajith Muditha Attapattu <rajith@apache.org>2007-11-20 13:59:54 +0000
commitbcd011a10c0db4ffc6f78380c548d673e270e000 (patch)
treeae6961f122221a7ce574e10895be8abcca044f12 /Final/cpp/lib/broker/BrokerQueue.h
parent5b7a0ca8896f20c85f176cd178735554833bcefc (diff)
downloadqpid-python-bcd011a10c0db4ffc6f78380c548d673e270e000.tar.gz
backing up the previous tag
git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/tags/M2@596673 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'Final/cpp/lib/broker/BrokerQueue.h')
-rw-r--r--Final/cpp/lib/broker/BrokerQueue.h146
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diff --git a/Final/cpp/lib/broker/BrokerQueue.h b/Final/cpp/lib/broker/BrokerQueue.h
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-/*
- *
- * 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.
- *
- */
-#ifndef _Queue_
-#define _Queue_
-
-#include <vector>
-#include <memory>
-#include <queue>
-#include <boost/shared_ptr.hpp>
-#include <amqp_types.h>
-#include <Binding.h>
-#include <ConnectionToken.h>
-#include <Consumer.h>
-#include <BrokerMessage.h>
-#include <FieldTable.h>
-#include <sys/Monitor.h>
-#include <QueuePolicy.h>
-
-namespace qpid {
- namespace broker {
- class MessageStore;
-
- /**
- * Thrown when exclusive access would be violated.
- */
- struct ExclusiveAccessException{};
-
- using std::string;
-
- /**
- * The brokers representation of an amqp queue. Messages are
- * delivered to a queue from where they can be dispatched to
- * registered consumers or be stored until dequeued or until one
- * or more consumers registers.
- */
- class Queue{
- const string name;
- const u_int32_t autodelete;
- MessageStore* const store;
- const ConnectionToken* const owner;
- std::vector<Consumer*> consumers;
- std::queue<Binding*> bindings;
- std::queue<Message::shared_ptr> messages;
- bool queueing;
- bool dispatching;
- int next;
- mutable qpid::sys::Mutex lock;
- int64_t lastUsed;
- Consumer* exclusive;
- mutable u_int64_t persistenceId;
- std::auto_ptr<QueuePolicy> policy;
-
- void pop();
- void push(Message::shared_ptr& msg);
- bool startDispatching();
- bool dispatch(Message::shared_ptr& msg);
- void setPolicy(std::auto_ptr<QueuePolicy> policy);
-
- public:
-
- typedef boost::shared_ptr<Queue> shared_ptr;
-
- typedef std::vector<shared_ptr> vector;
-
- Queue(const string& name, u_int32_t autodelete = 0,
- MessageStore* const store = 0,
- const ConnectionToken* const owner = 0);
- ~Queue();
-
- void create(const qpid::framing::FieldTable& settings);
- void configure(const qpid::framing::FieldTable& settings);
- void destroy();
- /**
- * Informs the queue of a binding that should be cancelled on
- * destruction of the queue.
- */
- void bound(Binding* b);
- /**
- * Delivers a message to the queue. Will record it as
- * enqueued if persistent then process it.
- */
- void deliver(Message::shared_ptr& msg);
- /**
- * Dispatches the messages immediately to a consumer if
- * one is available or stores it for later if not.
- */
- void process(Message::shared_ptr& msg);
- /**
- * Used during recovery to add stored messages back to the queue
- */
- void recover(Message::shared_ptr& msg);
- /**
- * Dispatch any queued messages providing there are
- * consumers for them. Only one thread can be dispatching
- * at any time, but this method (rather than the caller)
- * is responsible for ensuring that.
- */
- void dispatch();
- void consume(Consumer* c, bool exclusive = false);
- void cancel(Consumer* c);
- u_int32_t purge();
- u_int32_t getMessageCount() const;
- u_int32_t getConsumerCount() const;
- inline const string& getName() const { return name; }
- inline const bool isExclusiveOwner(const ConnectionToken* const o) const { return o == owner; }
- inline bool hasExclusiveConsumer() const { return exclusive; }
- inline u_int64_t getPersistenceId() const { return persistenceId; }
- inline void setPersistenceId(u_int64_t _persistenceId) const { persistenceId = _persistenceId; }
-
- bool canAutoDelete() const;
-
- void enqueue(TransactionContext* ctxt, Message::shared_ptr& msg, const string * const xid);
- /**
- * dequeue from store (only done once messages is acknowledged)
- */
- void dequeue(TransactionContext* ctxt, Message::shared_ptr& msg, const string * const xid);
- /**
- * dequeues from memory only
- */
- Message::shared_ptr dequeue();
-
- const QueuePolicy* const getPolicy();
- };
- }
-}
-
-
-#endif