[GRASS5] Re: [GRASSLIST:5197] Re: r.patch question

[Bernhard Reiter]

On Tue, Dec 10, 2002 at 10:52:00AM +0100, Markus Neteler wrote:
> ... taken here from "grasslist"....
> 
> On Mon, Dec 09, 2002 at 08:28:22PM +0100, Bernhard Reiter wrote:
> > On Mon, Dec 09, 2002 at 02:13:36PM -0500, Kevin Slover wrote:
> > > Just a quickie... 
> > >   is there a reason why r.patch is limited to only 200 files at a time? 
> > > First time that I have ever noticed this...(first time I have ever done
> > > more than 200 files!!).  Anyway to get around this without chopping up
> > > the data?  Thanks!
> > 
> > Check out
> > http://freegis.org/cgi-bin/viewcvs.cgi/grass/src/raster/r.patch/cmd/nfiles.h?rev=1.3&content-type=text/vnd.viewcvs-markup
> > 
> > Most operating system limit the number of open files.
> > If yours can more than 250, just raise that number and recompile. :)
> 
> Is there any (UN*X) system variable describing this? Then we could
> perhaps add a MAXFILEOPEN or similar to src/include/gis.h.

Someone more familiar with posix should answer this.
There is OPEN_MAX and FOPEN_MAX for some Linux kernels.

In any case we should also substract a good number (like 50) from this.
So 200 is a good number unless you build an optimised binary.
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