[PD] [PD-announce] share-mem lib

Miller Puckette msp at ucsd.edu
Fri Nov 2 16:47:56 CET 2012


Sorry, my post was ambiguous - I meant to suggest that "declare -path ..."
was a good idea for the example patches so that they'd work out of the box
for people downloading shmem to temporary quarters to look at it and/or
to include it in a pd-version-proof 'patchball' (if I may coin a term :)

cheers
Miller

On Fri, Nov 02, 2012 at 11:40:38AM -0400, Hans-Christoph Steiner wrote:
> 
> No declaration at all will take us to the bad old days when there was no way to resolve which [prepend], [counter], [scale], etc. that a given patch needed except to guess.  Or if you find the patch on the net, the [declare -lib] will tell you that you need to get the 'share-mem' library in order for the patch to work.  Otherwise, you have to guess where [shmem] came from.
> 
> .hc
> 
> On Nov 2, 2012, at 11:08 AM, Miller Puckette wrote:
> 
> > However, the "declare -path" won't make it _not_ work and will fix the
> > example if a 'user' downloads it without changing their Pd installation
> > (as someone like me would normally do.)  So I'd recommend the "-path" option
> > as the easier way to get started up.  Once correctly "installed", ideally,
> > it shouldn't need any declarations at all.
> > 
> > cheers
> > M
> > 
> > On Fri, Nov 02, 2012 at 11:03:36AM -0400, Hans-Christoph Steiner wrote:
> >> 
> >> The downside of using [declare -path ..] is that if someone edits an example and saves it somewhere else, it'll no longer work.  An alternative is to use [declare -lib share-mem], then it'll work wherever as long as share-mem is installed.  The downside there is that the library needs to be in the standard install location or the path in order for that to work.  For development, I often put a symlink in ~/pd-externals to the folder in SVN, then it works everywhere.
> >> 
> >> .hc
> >> 
> >> On Nov 2, 2012, at 7:48 AM, Cyrille Henry wrote:
> >> 
> >>> yes, thanks!
> >>> c
> >>> 
> >>> 
> >>> Le 02/11/2012 12:34, Antoine Villeret a écrit :
> >>>> nice work
> >>>> thanks guys,
> >>>> 
> >>>> maybe you can add a [declare -path ..] to all examples patches so that they will work just after the make
> >>>> 
> >>>> ++
> >>>> a
> >>>> 
> >>>> --
> >>>> do it yourself
> >>>> http://antoine.villeret.free.fr
> >>>> http://drii.ensad.fr
> >>>> --
> >>>> Google lit ce mail...
> >>>> si vous refusez cela, utilisez l'adresse antoine.villeret [at] free.fr <http://free.fr> pour me contacter
> >>>> 
> >>>> 
> >>>> 
> >>>> 2012/11/1 Cyrille Henry <ch at chnry.net <mailto:ch at chnry.net>>
> >>>> 
> >>>> 
> >>>> 
> >>>>   Le 01/11/2012 16:30, Hans-Christoph Steiner a écrit :
> >>>> 
> >>>> 
> >>>>       You can get binaries from any library in pure-data SVN based on the Library Template from the Jenkins build server.  There will soon be a Windows builder there too.  For example, here's a Mac OS X 32-bit i386 binary for shmem.pd_darwin:
> >>>> 
> >>>>       https://macosx105-i386.pdlab.__puredata.info/job/template-__libraries/label=macosx105-__i386/ws/share_mem/shmem.pd___darwin <https://macosx105-i386.pdlab.puredata.info/job/template-libraries/label=macosx105-i386/ws/share_mem/shmem.pd_darwin>
> >>>> 
> >>>>       You can browse available platforms here:
> >>>>       https://macosx105-i386.pdlab.__puredata.info/job/template-__libraries/ <https://macosx105-i386.pdlab.puredata.info/job/template-libraries/>
> >>>> 
> >>>>       Also, there is a shmem.pd_linux checked into SVN, that should be removed since it can be generated by typing 'make'.
> >>>> 
> >>>>   oups, my mistake.
> >>>>   i removed it.
> >>>>   cheers
> >>>> 
> >>>>   c
> >>>> 
> >>>> 
> >>>>       .hc
> >>>> 
> >>>>       On Nov 1, 2012, at 7:15 AM, Nicolas Montgermont wrote:
> >>>> 
> >>>>           btw : the object is still in development and may improve these days specially concerning the message syntax.
> >>>>           we may provide osx (and ubuntu) binaries after the testing period.
> >>>>           best,
> >>>>           n
> >>>> 
> >>>>           Le 01/11/12 10:24, Cyrille Henry a écrit :
> >>>> 
> >>>>               hello,
> >>>> 
> >>>>               for now, you'll have to grab sources from svn and compile it yourself.
> >>>>               examples should provide a quick overview of the usability.
> >>>>               cheers
> >>>>               c
> >>>> 
> >>>>               Le 01/11/2012 05:40, Phil Stone a écrit :
> >>>> 
> >>>>                   Cyrille, this is very exciting. Where can we get more details?
> >>>> 
> >>>> 
> >>>>                   Phil
> >>>> 
> >>>> 
> >>>>                   On 10/31/12 4:19 PM, Cyrille Henry wrote:
> >>>> 
> >>>>                       hello,
> >>>> 
> >>>>                       i just did a initial commit of share-mem, a lib dedicated to deal with shared memory.
> >>>> 
> >>>>                       background :
> >>>>                       pd / pd~ communication is really slow. by example, having a pd~ patch with 8 audio in and 8 out, use about 50% cpu of a recent computer for each process only to deal with audio communication.
> >>>>                       sending a large array from one process to the other is almost not possible in RT.
> >>>>                       This really limit pd~ usability.
> >>>> 
> >>>>                       -----
> >>>> 
> >>>>                       Thanks to share memory, communication between process can be greatly improve.
> >>>>                       This lib is mainly composed of an external, and few abstraction and examples.
> >>>> 
> >>>> 
> >>>>                       Everything look stable, at least on a ubuntu (12.04) and a osX laptop.
> >>>>                       Implementation follow POSIX standard, so it will unfortunately not work on windows.
> >>>> 
> >>>>                       everything that I need is there, even if lot's more work could be made. I hope to have user feedback before making more development.
> >>>> 
> >>>>                       Cheers
> >>>>                       Cyrille
> >>>> 
> >>>> 
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