From a52ab741019342fbca0468e43a01deb44fa5f1bd Mon Sep 17 00:00:00 2001 From: dsinclair Date: Thu, 29 Sep 2016 13:59:29 -0700 Subject: Move core/fxcrt/include to core/fxcrt BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2382723003 --- core/fxcrt/fx_stream.h | 162 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) create mode 100644 core/fxcrt/fx_stream.h (limited to 'core/fxcrt/fx_stream.h') diff --git a/core/fxcrt/fx_stream.h b/core/fxcrt/fx_stream.h new file mode 100644 index 0000000000..5a5a650650 --- /dev/null +++ b/core/fxcrt/fx_stream.h @@ -0,0 +1,162 @@ +// 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 CORE_FXCRT_FX_STREAM_H_ +#define CORE_FXCRT_FX_STREAM_H_ + +#include "core/fxcrt/fx_string.h" +#include "core/fxcrt/fx_system.h" + +void* FX_OpenFolder(const FX_CHAR* path); +void* FX_OpenFolder(const FX_WCHAR* 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(); + +#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ +#define FX_FILESIZE int32_t +#else +#include +#include +#include + +#ifndef O_BINARY +#define O_BINARY 0 +#endif // O_BINARY + +#ifndef O_LARGEFILE +#define O_LARGEFILE 0 +#endif // O_LARGEFILE + +#define FX_FILESIZE off_t +#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ + +#define FX_GETBYTEOFFSET32(a) 0 +#define FX_GETBYTEOFFSET40(a) 0 +#define FX_GETBYTEOFFSET48(a) 0 +#define FX_GETBYTEOFFSET56(a) 0 +#define FX_GETBYTEOFFSET24(a) ((uint8_t)(a >> 24)) +#define FX_GETBYTEOFFSET16(a) ((uint8_t)(a >> 16)) +#define FX_GETBYTEOFFSET8(a) ((uint8_t)(a >> 8)) +#define FX_GETBYTEOFFSET0(a) ((uint8_t)(a)) +#define FX_FILEMODE_Write 0 +#define FX_FILEMODE_ReadOnly 1 +#define FX_FILEMODE_Truncate 2 + +class IFX_StreamWrite { + public: + virtual ~IFX_StreamWrite() {} + virtual void Release() = 0; + virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0; +}; + +class IFX_FileWrite : public IFX_StreamWrite { + public: + // IFX_StreamWrite: + FX_BOOL WriteBlock(const void* pData, size_t size) override; + virtual FX_FILESIZE GetSize() = 0; + virtual FX_BOOL Flush() = 0; + virtual FX_BOOL WriteBlock(const void* pData, + FX_FILESIZE offset, + size_t size) = 0; +}; + +class IFX_StreamRead { + public: + virtual ~IFX_StreamRead() {} + + 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 : public IFX_StreamRead { + public: + // IFX_StreamRead: + void Release() override = 0; + FX_BOOL IsEOF() override; + FX_FILESIZE GetPosition() override; + size_t ReadBlock(void* buffer, size_t size) override; + + virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; + virtual FX_FILESIZE GetSize() = 0; +}; + +IFX_FileRead* FX_CreateFileRead(const FX_CHAR* filename); +IFX_FileRead* FX_CreateFileRead(const FX_WCHAR* filename); + +class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite { + public: + virtual IFX_FileStream* Retain() = 0; + + // IFX_FileRead: + void Release() override = 0; + FX_BOOL IsEOF() override = 0; + FX_FILESIZE GetPosition() override = 0; + size_t ReadBlock(void* buffer, size_t size) override = 0; + FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override = 0; + FX_FILESIZE GetSize() override = 0; + + // IFX_FileWrite: + FX_BOOL WriteBlock(const void* buffer, + FX_FILESIZE offset, + size_t size) override = 0; + FX_BOOL WriteBlock(const void* buffer, size_t size) override; + FX_BOOL Flush() override = 0; +}; + +IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, uint32_t dwModes); +IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, uint32_t dwModes); + +#ifdef PDF_ENABLE_XFA +class IFX_FileAccess { + public: + virtual ~IFX_FileAccess() {} + virtual void Release() = 0; + virtual IFX_FileAccess* Retain() = 0; + virtual void GetPath(CFX_WideString& wsPath) = 0; + virtual IFX_FileStream* CreateFileStream(uint32_t dwModes) = 0; +}; +IFX_FileAccess* FX_CreateDefaultFileAccess(const CFX_WideStringC& wsPath); +#endif // PDF_ENABLE_XFA + +class IFX_MemoryStream : public IFX_FileStream { + public: + virtual FX_BOOL IsConsecutive() const = 0; + virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0; + virtual uint8_t* GetBuffer() const = 0; + virtual void AttachBuffer(uint8_t* pBuffer, + size_t nSize, + FX_BOOL bTakeOver = FALSE) = 0; + virtual void DetachBuffer() = 0; +}; + +IFX_MemoryStream* FX_CreateMemoryStream(uint8_t* pBuffer, + size_t nSize, + FX_BOOL bTakeOver = FALSE); +IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); + +class IFX_BufferRead : public IFX_StreamRead { + public: + // IFX_StreamRead: + void Release() override = 0; + FX_BOOL IsEOF() override = 0; + FX_FILESIZE GetPosition() override = 0; + size_t ReadBlock(void* buffer, size_t size) override = 0; + + virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; + virtual const uint8_t* GetBlockBuffer() = 0; + virtual size_t GetBlockSize() = 0; + virtual FX_FILESIZE GetBlockOffset() = 0; +}; + +#endif // CORE_FXCRT_FX_STREAM_H_ -- cgit v1.2.3