Apache Qpid C++ API
Apache Qpid - AMQP Messaging for Java JMS, C++, Python, Ruby, and .NET Apache Qpid Documentation

qpid/framing/ResizableBuffer.h

Go to the documentation of this file.
00001 #ifndef QPID_FRAMING_RESIZABLEBUFFER_H
00002 #define QPID_FRAMING_RESIZABLEBUFFER_H
00003 
00004 /*
00005  *
00006  * Licensed to the Apache Software Foundation (ASF) under one
00007  * or more contributor license agreements.  See the NOTICE file
00008  * distributed with this work for additional information
00009  * regarding copyright ownership.  The ASF licenses this file
00010  * to you under the Apache License, Version 2.0 (the
00011  * "License"); you may not use this file except in compliance
00012  * with the License.  You may obtain a copy of the License at
00013  * 
00014  *   http://www.apache.org/licenses/LICENSE-2.0
00015  * 
00016  * Unless required by applicable law or agreed to in writing,
00017  * software distributed under the License is distributed on an
00018  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
00019  * KIND, either express or implied.  See the License for the
00020  * specific language governing permissions and limitations
00021  * under the License.
00022  *
00023  */
00024 
00025 #include "Buffer.h"
00026 #include <vector>
00027 
00028 namespace qpid {
00029 namespace framing {
00030 
00035 class ResizableBuffer : public Buffer
00036 {
00037   public:
00038     ResizableBuffer(size_t initialSize) : store(initialSize) {
00039         static_cast<Buffer&>(*this) = Buffer(&store[0], store.size());
00040     }
00041     
00042     void resize(size_t newSize) {
00043         size_t oldPos =  getPosition();
00044         store.resize(newSize);
00045         static_cast<Buffer&>(*this) = Buffer(&store[0], store.size());
00046         setPosition(oldPos);
00047     }
00048 
00050     void makeAvailable(size_t n) {
00051         if (n > available())
00052             resize(getSize() + n - available());
00053     }
00054     
00055   private:
00056     std::vector<char> store;
00057 };
00058 }} // namespace qpid::framing
00059 
00060 #endif  

Qpid C++ API Reference
Generated on Wed Feb 8 13:31:05 2012 for Qpid C++ Client API by doxygen 1.4.7