Re: [MinGW-dvlpr] CRTDLL threading issues?

[<dan...@ya...>]

 --- Adam Megacz <mi...@li...> wrote: > 
> Danny Smith <dan...@ya...> writes:
> > > In other words, if two threads try to write to the same file
> > > descriptor with WriteFile(), is there any risk of trouble?
> 
> > Yes.  You need to provide your own locks/unlocks for the file handle.
> 
> Hrm, what's the granularity here? Can I have multiple threads invoking
> WriteFile() on different file descriptors?
> 
> Also, what's the authoritative document for thread-safety? The API
> reference (win32.hlp) that I'm using doesn't mention anything about
> threading hazards.
> 

Have a look here  for specific WriteFile doc.
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/filesio_3kkl.asp

and here for synnchronization mechanisms:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/synchro_4ur8.asp

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