Thanks Jeff, you have been very helpful.

One last question for the moment ;-). What is the best way to compile C 
components? With .comp components you use comp with it's various 
switches. What is the correct command line for a C component?

Les

Jeff Epler wrote:
> On Tue, Jul 21, 2009 at 08:42:24AM +0100, Leslie Newell wrote:
>   
>> Hi Jeff,
>>
>> Sorry, I meant do you know of any components that use shared memory to 
>> communicate between a user space part and a real time part.
>>     
>
> Oh, yes.  There are several:
>     Userspace       Realtime
>     halscope        scope_rt
>     halsampler      sampler
>     halstreamer     streamer
> and of course emc's task (userspace) and motion (rt) communicate through
> such a shared memory area.
>
> halstreamer is probably the most similar to what I'm suggesting, because
> a userspace process loads data and a realtime process consumes it.
>
> Jeff
>
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