/*
* Copyright (C) 2014 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.
* * Neither the name of Google Inc. nor the names of its
* 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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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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*/
#ifndef SharedBufferReader_h
#define SharedBufferReader_h
#include "wtf/FastAllocBase.h"
#include "wtf/Forward.h"
#include "wtf/RefPtr.h"
namespace WebCore {
class SharedBuffer;
// Allows transfer of data in multiple chunks from a SharedBuffer to a provided buffer.
class SharedBufferReader {
WTF_MAKE_FAST_ALLOCATED;
public:
SharedBufferReader(PassRefPtr<SharedBuffer>);
~SharedBufferReader();
// Returns the number of bytes that were read (i.e. written to |outputBuffer|).
int readData(char* outputBuffer, unsigned askedToRead);
private:
RefPtr<SharedBuffer> m_buffer;
unsigned m_currentOffset;
};
} // namespace WebCore
#endif // SharedBufferReader_h