Re: [Mingw-users] large file support in runtime

[Roumen P. <bug...@ro...>]

Erik de Castro Lopo wrote:
> Tor Lillqvist wrote:
> 
>> The runtime, i.e. the Microsoft C library, in all its incarnations,
>> and the underlying (NT-based) Windows operating systems, support large
>> files just fine. You just have to look in the header files for the
>> correct functions names and types to use.
> 
> While this is true, be very careful because while MS may have implemented
> a bunch of POSIX system calls, their implementations are often buggy and
> inconsistent.
> 
> For instance, I found a that fstat and stat have some very strange and
> unexpected behaviour on all version of windows up to an including
> Vista:
> 
>     http://www.mega-nerd.com/erikd/Blog/Windiots/posix.html
> 
> Over the years I have found many other similar wierd inconsistencies
> on various versions of windows.
> 
> My solution is to avoid MS's broken POSIX layer and instead write a
> wrapper around the CreateFile/ReadFile/WriteFile/SetFilePointer win32
> API and use that instead. With these functions, at least you have a
> fair chance that MS has tested them and made sure they work.
> 
> HTH,
> Erik

Above is not only related to the POSIX layer. In link is sample for stat 
and fstat. I'm not sure that "Expolorer" use those functions. If I 
remember well "Explorer" show incorrect file size for files written by a 
program but still open. I'm not sure that flush resolve issue.

Roumen