| #ifndef _broker_FifoDistributor_h |
| #define _broker_FifoDistributor_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. |
| * |
| */ |
| |
| /** Simple MessageDistributor for FIFO Queues - the HEAD message is always the next |
| * available message for consumption. |
| */ |
| |
| #include "qpid/broker/MessageDistributor.h" |
| |
| namespace qpid { |
| namespace broker { |
| |
| class Messages; |
| |
| class FifoDistributor : public MessageDistributor |
| { |
| public: |
| FifoDistributor(Messages& container); |
| |
| /** Locking Note: all methods assume the caller is holding the Queue::messageLock |
| * during the method call. |
| */ |
| |
| /** MessageDistributor interface */ |
| |
| bool nextConsumableMessage( Consumer::shared_ptr& consumer, QueuedMessage& next ); |
| bool allocate(const std::string& consumer, const QueuedMessage& target); |
| bool nextBrowsableMessage( Consumer::shared_ptr& consumer, QueuedMessage& next ); |
| void query(qpid::types::Variant::Map&) const; |
| |
| private: |
| Messages& messages; |
| }; |
| |
| }} |
| |
| #endif |