From 5110c4743751145c4ae1934cd1d83bc6c55bb43f Mon Sep 17 00:00:00 2001 From: John Abd-El-Malek Date: Sat, 17 May 2014 22:33:34 -0700 Subject: Initial commit. --- core/include/fxcrt/fx_stream.h | 200 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 200 insertions(+) create mode 100644 core/include/fxcrt/fx_stream.h (limited to 'core/include/fxcrt/fx_stream.h') diff --git a/core/include/fxcrt/fx_stream.h b/core/include/fxcrt/fx_stream.h new file mode 100644 index 0000000000..cda5253365 --- /dev/null +++ b/core/include/fxcrt/fx_stream.h @@ -0,0 +1,200 @@ +// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#ifndef _FX_STREAM_H_ +#define _FX_STREAM_H_ +#ifndef _FX_MEMORY_H_ +#include "fx_memory.h" +#endif +void* FX_OpenFolder(FX_LPCSTR path); +void* FX_OpenFolder(FX_LPCWSTR path); +FX_BOOL FX_GetNextFile(void* handle, CFX_ByteString& filename, FX_BOOL& bFolder); +FX_BOOL FX_GetNextFile(void* handle, CFX_WideString& filename, FX_BOOL& bFolder); +void FX_CloseFolder(void* handle); +FX_WCHAR FX_GetFolderSeparator(); +FX_DEFINEHANDLE(FX_HFILE) +#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ +#define FX_FILESIZE FX_INT32 +#else +#include +#include +#include +#ifndef O_BINARY +#define O_BINARY 0 +#endif +#ifndef O_LARGEFILE +#define O_LARGEFILE 0 +#endif +#define FX_FILESIZE off_t +#endif +#define FX_GETBYTEOFFSET32(a) 0 +#define FX_GETBYTEOFFSET40(a) 0 +#define FX_GETBYTEOFFSET48(a) 0 +#define FX_GETBYTEOFFSET56(a) 0 +#define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a>>24)) +#define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a>>16)) +#define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a>>8)) +#define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a)) +#define FX_FILEMODE_Write 0 +#define FX_FILEMODE_ReadOnly 1 +#define FX_FILEMODE_Truncate 2 +FX_HFILE FX_File_Open(FX_BSTR fileName, FX_DWORD dwMode, IFX_Allocator* pAllocator = NULL); +FX_HFILE FX_File_Open(FX_WSTR fileName, FX_DWORD dwMode, IFX_Allocator* pAllocator = NULL); +void FX_File_Close(FX_HFILE hFile, IFX_Allocator* pAllocator = NULL); +FX_FILESIZE FX_File_GetSize(FX_HFILE hFile); +FX_FILESIZE FX_File_GetPosition(FX_HFILE hFile); +FX_FILESIZE FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos); +size_t FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer); +size_t FX_File_ReadPos(FX_HFILE hFile, void* pBuffer, size_t szBuffer, FX_FILESIZE pos); +size_t FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuffer); +size_t FX_File_WritePos(FX_HFILE hFile, const void* pBuffer, size_t szBuffer, FX_FILESIZE pos); +FX_BOOL FX_File_Flush(FX_HFILE hFile); +FX_BOOL FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile); +FX_BOOL FX_File_Exist(FX_BSTR fileName); +FX_BOOL FX_File_Exist(FX_WSTR fileName); +FX_BOOL FX_File_Delete(FX_BSTR fileName); +FX_BOOL FX_File_Delete(FX_WSTR fileName); +FX_BOOL FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); +FX_BOOL FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); +FX_BOOL FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); +FX_BOOL FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); +class IFX_StreamWrite +{ +public: + + virtual void Release() = 0; + + virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0; +}; +class IFX_FileWrite : public IFX_StreamWrite +{ +public: + + virtual void Release() = 0; + + virtual FX_FILESIZE GetSize() = 0; + + virtual FX_BOOL Flush() = 0; + + virtual FX_BOOL WriteBlock(const void* pData, FX_FILESIZE offset, size_t size) = 0; + virtual FX_BOOL WriteBlock(const void* pData, size_t size) + { + return WriteBlock(pData, GetSize(), size); + } +}; +IFX_FileWrite* FX_CreateFileWrite(FX_LPCSTR filename, IFX_Allocator* pAllocator = NULL); +IFX_FileWrite* FX_CreateFileWrite(FX_LPCWSTR filename, IFX_Allocator* pAllocator = NULL); +class IFX_StreamRead +{ +public: + + virtual void Release() = 0; + + virtual FX_BOOL IsEOF() = 0; + + virtual FX_FILESIZE GetPosition() = 0; + + virtual size_t ReadBlock(void* buffer, size_t size) = 0; +}; +class IFX_FileRead : IFX_StreamRead +{ +public: + + virtual void Release() = 0; + + virtual FX_FILESIZE GetSize() = 0; + + virtual FX_BOOL IsEOF() + { + return FALSE; + } + + virtual FX_FILESIZE GetPosition() + { + return 0; + } + + virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) + { + return FALSE; + } + + virtual void ClearRange() {} + + virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; + + virtual size_t ReadBlock(void* buffer, size_t size) + { + return 0; + } +}; +IFX_FileRead* FX_CreateFileRead(FX_LPCSTR filename, IFX_Allocator* pAllocator = NULL); +IFX_FileRead* FX_CreateFileRead(FX_LPCWSTR filename, IFX_Allocator* pAllocator = NULL); +class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite +{ +public: + + virtual IFX_FileStream* Retain() = 0; + + virtual void Release() = 0; + + virtual FX_FILESIZE GetSize() = 0; + + virtual FX_BOOL IsEOF() = 0; + + virtual FX_FILESIZE GetPosition() = 0; + + virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; + + virtual size_t ReadBlock(void* buffer, size_t size) = 0; + + virtual FX_BOOL WriteBlock(const void* buffer, FX_FILESIZE offset, size_t size) = 0; + virtual FX_BOOL WriteBlock(const void* buffer, size_t size) + { + return WriteBlock(buffer, GetSize(), size); + } + + virtual FX_BOOL Flush() = 0; +}; +IFX_FileStream* FX_CreateFileStream(FX_LPCSTR filename, FX_DWORD dwModes, IFX_Allocator* pAllocator = NULL); +IFX_FileStream* FX_CreateFileStream(FX_LPCWSTR filename, FX_DWORD dwModes, IFX_Allocator* pAllocator = NULL); +class IFX_MemoryStream : public IFX_FileStream +{ +public: + + virtual FX_BOOL IsConsecutive() const = 0; + + virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0; + + virtual FX_LPBYTE GetBuffer() const = 0; + + virtual void AttachBuffer(FX_LPBYTE pBuffer, size_t nSize, FX_BOOL bTakeOver = FALSE) = 0; + + virtual void DetachBuffer() = 0; +}; +IFX_MemoryStream* FX_CreateMemoryStream(FX_LPBYTE pBuffer, size_t nSize, FX_BOOL bTakeOver = FALSE, IFX_Allocator* pAllocator = NULL); +IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE, IFX_Allocator* pAllocator = NULL); +class IFX_BufferRead : public IFX_StreamRead +{ +public: + + virtual void Release() = 0; + + virtual FX_BOOL IsEOF() = 0; + + virtual FX_FILESIZE GetPosition() = 0; + + virtual size_t ReadBlock(void* buffer, size_t size) = 0; + + virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; + + virtual FX_LPCBYTE GetBlockBuffer() = 0; + + virtual size_t GetBlockSize() = 0; + + virtual FX_FILESIZE GetBlockOffset() = 0; +}; +#endif -- cgit v1.2.3