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-rw-r--r--cpp/src/qpid/broker/QueuePolicy.h126
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diff --git a/cpp/src/qpid/broker/QueuePolicy.h b/cpp/src/qpid/broker/QueuePolicy.h
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--- a/cpp/src/qpid/broker/QueuePolicy.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 _QueuePolicy_
-#define _QueuePolicy_
-
-#include <deque>
-#include <iostream>
-#include <memory>
-#include "qpid/broker/BrokerImportExport.h"
-#include "qpid/broker/QueuedMessage.h"
-#include "qpid/framing/FieldTable.h"
-#include "qpid/sys/AtomicValue.h"
-#include "qpid/sys/Mutex.h"
-
-namespace qpid {
-namespace broker {
-
-class Queue;
-
-class QueuePolicy
-{
- static uint64_t defaultMaxSize;
-
- uint32_t maxCount;
- uint64_t maxSize;
- const std::string type;
- uint32_t count;
- uint64_t size;
- bool policyExceeded;
-
- protected:
- Queue* queue;
- uint64_t getCurrentQueueSize() const { return size; }
-
- public:
- typedef std::deque<QueuedMessage> Messages;
- static QPID_BROKER_EXTERN const std::string maxCountKey;
- static QPID_BROKER_EXTERN const std::string maxSizeKey;
- static QPID_BROKER_EXTERN const std::string typeKey;
- static QPID_BROKER_EXTERN const std::string REJECT;
- static QPID_BROKER_EXTERN const std::string FLOW_TO_DISK;
- static QPID_BROKER_EXTERN const std::string RING;
- static QPID_BROKER_EXTERN const std::string RING_STRICT;
-
- virtual ~QueuePolicy() {}
- QPID_BROKER_EXTERN void tryEnqueue(boost::intrusive_ptr<Message> msg);
- QPID_BROKER_EXTERN void recoverEnqueued(boost::intrusive_ptr<Message> msg);
- QPID_BROKER_EXTERN void enqueueAborted(boost::intrusive_ptr<Message> msg);
- virtual void enqueued(const QueuedMessage&);
- virtual void dequeued(const QueuedMessage&);
- virtual bool isEnqueued(const QueuedMessage&);
- QPID_BROKER_EXTERN void update(qpid::framing::FieldTable& settings);
- uint32_t getMaxCount() const { return maxCount; }
- uint64_t getMaxSize() const { return maxSize; }
- void encode(framing::Buffer& buffer) const;
- void decode ( framing::Buffer& buffer );
- uint32_t encodedSize() const;
- virtual void getPendingDequeues(Messages& result);
- std::string getType() const { return type; }
- void setQueue(Queue* q) { queue = q; }
-
- static QPID_BROKER_EXTERN std::auto_ptr<QueuePolicy> createQueuePolicy(const std::string& name, const qpid::framing::FieldTable& settings);
- static QPID_BROKER_EXTERN std::auto_ptr<QueuePolicy> createQueuePolicy(const std::string& name, uint32_t maxCount, uint64_t maxSize, const std::string& type = REJECT);
- static QPID_BROKER_EXTERN std::auto_ptr<QueuePolicy> createQueuePolicy(const qpid::framing::FieldTable& settings);
- static QPID_BROKER_EXTERN std::auto_ptr<QueuePolicy> createQueuePolicy(uint32_t maxCount, uint64_t maxSize, const std::string& type = REJECT);
- static std::string getType(const qpid::framing::FieldTable& settings);
- static void setDefaultMaxSize(uint64_t);
- friend QPID_BROKER_EXTERN std::ostream& operator<<(std::ostream&,
- const QueuePolicy&);
- protected:
- const std::string name;
-
- QueuePolicy(const std::string& name, uint32_t maxCount, uint64_t maxSize, const std::string& type = REJECT);
-
- virtual bool checkLimit(boost::intrusive_ptr<Message> msg);
- void enqueued(uint64_t size);
- void dequeued(uint64_t size);
-};
-
-
-class FlowToDiskPolicy : public QueuePolicy
-{
- public:
- FlowToDiskPolicy(const std::string& name, uint32_t maxCount, uint64_t maxSize);
- bool checkLimit(boost::intrusive_ptr<Message> msg);
-};
-
-class RingQueuePolicy : public QueuePolicy
-{
- public:
- RingQueuePolicy(const std::string& name, uint32_t maxCount, uint64_t maxSize, const std::string& type = RING);
- void enqueued(const QueuedMessage&);
- void dequeued(const QueuedMessage&);
- bool isEnqueued(const QueuedMessage&);
- bool checkLimit(boost::intrusive_ptr<Message> msg);
- void getPendingDequeues(Messages& result);
- private:
- Messages pendingDequeues;
- Messages queue;
- const bool strict;
-
- bool find(const QueuedMessage&, Messages&, bool remove);
-};
-
-}}
-
-
-#endif