how to get mmap page size?

Corinna Vinschen corinna-cygwin@cygwin.com
Sun Jan 18 01:04:00 GMT 2009


On Jan 16 16:45, Jay Foad wrote:
> Corinna Vinschen wrote:
> 
> > Right.  The reason is that mmap started to map memory top down at one
> > point to fix a problem with Windows Vista.  The mechanism to align
> > the map always to 64K is still in Cygwin, but it currently doesn't
> > work for files.  I'll have a look into fixing that for Cygwin 1.7.
> 
> OK, thanks. In the mean time I guess I'll just use a hard coded value
> of 4K for the page size in my application.

I fixed that in CVS.  Actually it turned out that it never quite worked
as intended due to a erronous condition.  Please note that this can't
work under WOW64 since WOW64 does not support the AT_ROUND_TO_PAGE flag
to NtMapViewOfSection for some reason.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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