[PD-dev] open_via_path() weirdness
Hans-Christoph Steiner
hans at at.or.at
Tue Apr 28 03:27:59 CEST 2009
On Apr 27, 2009, at 6:28 PM, Martin Peach wrote:
> IOhannes m zmoelnig wrote:
>> hi all,
>> in the course of trying to find the filehandle-leak bug in Gem i
>> found a weird problem with open_via_path().
>> can anybody find anything wrong with the attached code?
>> if not, try the attached patch as well.
>
> A minor thing is that you use #ifdef __WIN32__ instead of #ifdef
> MSW, which may or may not work.
_WIN32 is the preferred version of that macro:
http://lists.puredata.info/pipermail/pd-dev/2007-12/010289.html
>> everything works fine on linux, but on w32 i cannot close the file-
>> handle anymore (i get an errno of EBADF, which means that fd isn't
>> a valid open file descriptor).
>> which in turn results in a filehandle leak.
>
> I don't know if it's related but I had trouble with the very similar
> canvas_open on WinXP in the [which] object. I compiled it with
> VisualStudioC++2005ExpressEdition against various pd.libs from
> Miller's site. Every time Pd would crash whenever i tried to use the
> fd, although the same code runs fine on linux (no need for a pd.lib
> there).
> So imagine my surprise when which works fine when built as part of
> pd-extended on Hans' machine. So I think that I'm seeing some
> incompatibility of the dlls as made with MinGW and VC.
Yeah, I think its probably good to stick with MinGW throughout.
.hc
>
>
> Martin
>
>
>
>
>> i notice that hardly anyone (esp. Pd itself) uses open_via_path().
>> is there a reason for that? is it buggy? (couldn't find anything
>> wrong though)
>> i use it quite a lot, e.g. in [msgfile]; i guess nobody ever tried
>> to open > 1000 files with msgfile on w32, so the error never
>> appeared...
>> fgamsdr
>> IOhannes
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