_fseek_nolock, _fseeki64

_fseek_nolock, _fseeki64_nolock

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Microsoft Visual Studio 2005/.NET Framework 2.0

Other versions are also available for the following:

Run-Time Library Reference

_fseek_nolock, _fseeki64_nolock

Moves the file pointer to a specified location.

int _fseek_nolock( 
   FILE *stream,
   long offset,
   int origin 
);
int _fseeki64_nolock( 
   FILE *stream,
   __int64 offset,
   int origin 
);

Parameters

stream: Pointer to the FILE structure.

offset: Number of bytes from origin.

origin: Initial position.

Return Value

Same as fseek, _fseeki64 respectively.

Remarks

These functions are the non-locking versions of fseek and _fseeki64, respectively. These are identical to fseek and _fseeki64 except that they are not protected from interference by other threads. These functions might be faster because they do not incur the overhead of locking out other threads. Use these functions only in thread-safe contexts such as single-threaded applications or where the calling scope already handles thread isolation.

Requirements

Function	Required header	Compatibility
fseek	<stdio.h>	ANSI, Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003
_fseeki64	<stdio.h>	Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003

For additional compatibility information, see Compatibility in the Introduction.

.NET Framework Equivalent

Reference

Stream I/O
ftell, _ftelli64
_lseek, _lseeki64
rewind