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