1 // Copyright 2017 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FXCRT_CFX_SEEKABLEMULTISTREAM_H_ 8 #define CORE_FXCRT_CFX_SEEKABLEMULTISTREAM_H_ 9 10 #include <vector> 11 12 #include "core/fxcrt/fx_stream.h" 13 #include "core/fxcrt/retain_ptr.h" 14 15 class CPDF_Stream; 16 class CPDF_StreamAcc; 17 18 class CFX_SeekableMultiStream : public IFX_SeekableStream { 19 public: 20 explicit CFX_SeekableMultiStream(const std::vector<CPDF_Stream*>& streams); 21 ~CFX_SeekableMultiStream() override; 22 23 // IFX_SeekableReadStream 24 FX_FILESIZE GetPosition() override; 25 FX_FILESIZE GetSize() override; 26 bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override; 27 size_t ReadBlock(void* buffer, size_t size) override; 28 bool IsEOF() override; 29 bool Flush() override; 30 bool WriteBlock(const void* pData, FX_FILESIZE offset, size_t size) override; 31 32 private: 33 std::vector<RetainPtr<CPDF_StreamAcc>> m_Data; 34 }; 35 36 #endif // CORE_FXCRT_CFX_SEEKABLEMULTISTREAM_H_ 37
