| /* |
| * 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. |
| * * 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. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_SHARED_BUFFER_CHUNK_READER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SHARED_BUFFER_CHUNK_READER_H_ |
| |
| #include "base/macros.h" |
| #include "third_party/blink/renderer/platform/platform_export.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| #include "third_party/blink/renderer/platform/wtf/vector.h" |
| |
| namespace blink { |
| |
| class SharedBuffer; |
| |
| class PLATFORM_EXPORT SharedBufferChunkReader final { |
| DISALLOW_NEW(); |
| |
| public: |
| SharedBufferChunkReader(scoped_refptr<const SharedBuffer>, |
| const Vector<char>& separator); |
| SharedBufferChunkReader(scoped_refptr<const 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 include_separator = false); |
| |
| // Returns a null string when the end of the buffer has been reached. |
| String NextChunkAsUTF8StringWithLatin1Fallback( |
| bool include_separator = 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. |
| uint32_t Peek(Vector<char>&, uint32_t); |
| |
| private: |
| scoped_refptr<const SharedBuffer> buffer_; |
| size_t buffer_position_; |
| const char* segment_; |
| uint32_t segment_length_; |
| uint32_t segment_index_; |
| bool reached_end_of_file_; |
| Vector<char> separator_; |
| uint32_t separator_index_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(SharedBufferChunkReader); |
| }; |
| |
| } // namespace blink |
| |
| #endif |