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// Windows/FileIO.h
#ifndef __WINDOWS_FILEIO_H
#define __WINDOWS_FILEIO_H
#include <Common/MyString.h>
#ifndef _WIN32
#define FILE_SHARE_READ 1
#define FILE_SHARE_WRITE 2
#define FILE_BEGIN SEEK_SET
#define FILE_CURRENT SEEK_CUR
#define FILE_END SEEK_END
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
#define _my_IO_REPARSE_TAG_MOUNT_POINT (0xA0000003L)
#define _my_IO_REPARSE_TAG_SYMLINK (0xA000000CL)
#define _my_SYMLINK_FLAG_RELATIVE 1
namespace NWindows {
namespace NFile {
struct CReparseAttr
{
UInt32 Tag;
UInt32 Flags;
UString SubsName;
UString PrintName;
CReparseAttr(): Tag(0), Flags(0) {}
bool Parse(const Byte *p, size_t size);
bool IsMountPoint() const { return Tag == _my_IO_REPARSE_TAG_MOUNT_POINT; } // it's Junction
bool IsSymLink() const { return Tag == _my_IO_REPARSE_TAG_SYMLINK; }
bool IsRelative() const { return Flags == _my_SYMLINK_FLAG_RELATIVE; }
// bool IsVolume() const;
bool IsOkNamePair() const;
UString GetPath() const;
};
namespace NIO {
class CFileBase
{
protected:
int _fd;
AString _unix_filename;
time_t _lastAccessTime;
time_t _lastWriteTime;
#ifdef ENV_HAVE_LSTAT
int _size;
char _buffer[MAX_PATHNAME_LEN+1];
int _offset;
#endif
bool Create(CFSTR fileName, DWORD desiredAccess,
DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes,bool ignoreSymbolicLink=false);
public:
CFileBase(): _fd(-1) {};
virtual ~CFileBase();
virtual bool Close();
bool GetLength(UINT64 &length) const;
bool Seek(INT64 distanceToMove, DWORD moveMethod, UINT64 &newPosition);
bool Seek(UINT64 position, UINT64 &newPosition);
};
class CInFile: public CFileBase
{
public:
bool Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes);
bool OpenShared(CFSTR fileName, bool /* shareForWrite */ ,bool ignoreSymbolicLink=false) {
return Open(fileName,ignoreSymbolicLink);
}
bool Open(CFSTR fileName,bool ignoreSymbolicLink=false);
bool ReadPart(void *data, UINT32 size, UINT32 &processedSize);
bool Read(void *data, UINT32 size, UINT32 &processedSize);
};
class COutFile: public CFileBase
{
public:
bool Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes);
bool Open(CFSTR fileName, DWORD creationDisposition);
bool Create(CFSTR fileName, bool createAlways);
bool CreateAlways(CFSTR fileName, DWORD flagsAndAttributes);
bool SetTime(const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime) throw();
bool SetMTime(const FILETIME *mTime) throw();
bool WritePart(const void *data, UInt32 size, UInt32 &processedSize) throw();
bool Write(const void *data, UInt32 size, UInt32 &processedSize) throw();
bool SetEndOfFile() throw();
bool SetLength(UInt64 length) throw();
};
}}}
#endif
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