source: pacpusframework/trunk/3rd/apache-log4cxx/include/log4cxx/helpers/bytebuffer.h@ 3

/*
 * 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 _LOG4CXX_HELPERS_BYTEBUFFER_H
#define _LOG4CXX_HELPERS_BYTEBUFFER_H

#include <log4cxx/log4cxx.h>
#include <stdio.h>

namespace log4cxx
{

        namespace helpers {

          /**
          * A byte buffer.
          */
          class LOG4CXX_EXPORT ByteBuffer
          {
          private:
                  char* base;
                  size_t pos;
                  size_t lim;
                  size_t cap;

          public:
                  ByteBuffer(char* data, size_t capacity);
                  ~ByteBuffer();

                  void clear();
                  void flip();

                  inline char* data() { return base; }
                  inline const char* data() const { return base; }
                  inline char* current() { return base + pos; }
                  inline const char* current() const { return base + pos; }
                  inline size_t limit() const { return lim; }
                  void limit(size_t newLimit);
                  inline size_t position() const { return pos; }
                  inline size_t remaining() const { return lim - pos; }
                  void position(size_t newPosition);

                  bool put(char byte);


          private:
                  ByteBuffer(const ByteBuffer&);
                  ByteBuffer& operator=(const ByteBuffer&);
          };

        } // namespace helpers

}  //namespace log4cxx

#endif //_LOG4CXX_HELPERS_BYTEBUFFER_H