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Diffstat (limited to 'core/include/fxcrt/fx_stream.h')
| -rw-r--r-- | core/include/fxcrt/fx_stream.h | 200 |
1 files changed, 200 insertions, 0 deletions
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 <fcntl.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#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
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