1 // Copyright 2014 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_FILEACCESS_POSIX_H_ 8 #define CORE_FXCRT_CFX_FILEACCESS_POSIX_H_ 9 10 #include "build/build_config.h" 11 #include "core/fxcrt/fileaccess_iface.h" 12 #include "core/fxcrt/fx_system.h" 13 14 #if _FX_PLATFORM_ != _FX_PLATFORM_LINUX_ && !defined(OS_MACOSX) && \ 15 !defined(OS_ANDROID) 16 #error "Included on the wrong platform" 17 #endif 18 19 class CFX_FileAccess_Posix final : public FileAccessIface { 20 public: 21 CFX_FileAccess_Posix(); 22 ~CFX_FileAccess_Posix() override; 23 24 // FileAccessIface: 25 bool Open(ByteStringView fileName, uint32_t dwMode) override; 26 bool Open(WideStringView fileName, uint32_t dwMode) override; 27 void Close() override; 28 FX_FILESIZE GetSize() const override; 29 FX_FILESIZE GetPosition() const override; 30 FX_FILESIZE SetPosition(FX_FILESIZE pos) override; 31 size_t Read(void* pBuffer, size_t szBuffer) override; 32 size_t Write(const void* pBuffer, size_t szBuffer) override; 33 size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) override; 34 size_t WritePos(const void* pBuffer, 35 size_t szBuffer, 36 FX_FILESIZE pos) override; 37 bool Flush() override; 38 bool Truncate(FX_FILESIZE szFile) override; 39 40 private: 41 int32_t m_nFD; 42 }; 43 44 #endif // CORE_FXCRT_CFX_FILEACCESS_POSIX_H_ 45