Initial commit.

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