1 /* 2 * Copyright (C) 2011 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef SharedBufferChunkReader_h 32 #define SharedBufferChunkReader_h 33 34 #include "wtf/Vector.h" 35 #include "wtf/text/WTFString.h" 36 37 namespace WebCore { 38 39 class SharedBuffer; 40 41 class SharedBufferChunkReader { 42 public: 43 SharedBufferChunkReader(SharedBuffer*, const Vector<char>& separator); 44 SharedBufferChunkReader(SharedBuffer*, const char* separator); 45 46 void setSeparator(const Vector<char>&); 47 void setSeparator(const char*); 48 49 // Returns false when the end of the buffer was reached. 50 bool nextChunk(Vector<char>& data, bool includeSeparator = false); 51 52 // Returns a null string when the end of the buffer has been reached. 53 String nextChunkAsUTF8StringWithLatin1Fallback(bool includeSeparator = false); 54 55 // Reads size bytes at the current location in the buffer, without changing the buffer position. 56 // Returns the number of bytes read. That number might be less than the specified size if the end of the buffer was reached. 57 size_t peek(Vector<char>&, size_t); 58 59 private: 60 SharedBuffer* m_buffer; 61 size_t m_bufferPosition; 62 const char* m_segment; 63 size_t m_segmentLength; 64 size_t m_segmentIndex; 65 bool m_reachedEndOfFile; 66 Vector<char> m_separator; 67 size_t m_separatorIndex; 68 }; 69 70 } 71 72 #endif 73
