/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
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* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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*/
#ifndef SharedBufferChunkReader_h
#define SharedBufferChunkReader_h
#include "platform/PlatformExport.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class SharedBuffer;
class PLATFORM_EXPORT SharedBufferChunkReader {
public:
SharedBufferChunkReader(SharedBuffer*, const Vector<char>& separator);
SharedBufferChunkReader(SharedBuffer*, const char* separator);
void setSeparator(const Vector<char>&);
void setSeparator(const char*);
// Returns false when the end of the buffer was reached.
bool nextChunk(Vector<char>& data, bool includeSeparator = false);
// Returns a null string when the end of the buffer has been reached.
String nextChunkAsUTF8StringWithLatin1Fallback(bool includeSeparator = false);
// Reads size bytes at the current location in the buffer, without changing the buffer position.
// Returns the number of bytes read. That number might be less than the specified size if the end of the buffer was reached.
size_t peek(Vector<char>&, size_t);
private:
SharedBuffer* m_buffer;
size_t m_bufferPosition;
const char* m_segment;
size_t m_segmentLength;
size_t m_segmentIndex;
bool m_reachedEndOfFile;
Vector<char> m_separator;
size_t m_separatorIndex;
};
}
#endif