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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2021 Apple 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
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(MHTML)
#include "SharedBuffer.h"
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class WEBCORE_EXPORT SharedBufferChunkReader {
public:
SharedBufferChunkReader(FragmentedSharedBuffer*, const Vector<char>& separator);
SharedBufferChunkReader(FragmentedSharedBuffer*, 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<uint8_t>& 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<uint8_t>&, size_t);
private:
FragmentedSharedBuffer::DataSegmentVector::const_iterator m_iteratorCurrent;
const FragmentedSharedBuffer::DataSegmentVector::const_iterator m_iteratorEnd;
const uint8_t* m_segment { nullptr };
size_t m_segmentIndex { 0 };
Vector<char> m_separator { false };
size_t m_separatorIndex { 0 };
};
}
#endif
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