[eq-dev] Is asynchronous signalling between nodes possible?

[Stefan Eilemann]

On 30. Apr 2009, at 14:20, Juan Hernando wrote:

> I've been ready through the code and I think I pretty much get the  
> idea.
>  My problem is that I've become stuck in the initialization of the
> identifiers I need.
> I've defined a ditributed object and I have a packet that will pass  
> the
> object ID and version to tell the other nodes what object has to be
> mapped and when they have to synchronize. What I don't know is how to
> send the packet to the other nodes. I could add the object ID in the
> initialization data (as in InitData from eqPly) and then I don't  
> need to
> send the packet, but that adds a nasty dependency between several
> objects that I want to avoid.
> So, is there an easy way of getting the NodeID or NodePtr references  
> for
> all nodes in the configuration from the eq::Config, eq::Node or  
> similar
> within the application node? If it's not that straightforward, it  
> there,
> at least, a way to broadcast a packet?

Right now there is no way to broadcast data, since that wasn't needed  
so far.

You can communicate the ID's back to the application using events (see  
Config::sendEvent in eqPixelBench).

To send them back to the render clients, passing them through init/ 
frame data is the easiest solution. You could also manually connect  
the nodes (using the NodeID's) and send a packet to them with the  
information you need.


HTH,

Stefan.
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