[PD] [PD-announce] share-mem lib
Hans-Christoph Steiner
hans at at.or.at
Fri Nov 2 16:40:38 CET 2012
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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