Andrew Boyd(deleted)
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RE: Few questions on Qnet
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Andrew Boyd(deleted)
04/04/2008 9:57 AM
post6463
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RE: Few questions on Qnet
> 1. Does Qnet support only Connection-Oriented communication?
Yup
> If YES, then how can we implement one process communicate with
> multiple other processes
Qnet doesn't do that very well. Perhaps something like the mqueue
utility? This might work ok for control messages, but for high
performance data throughput (eg video) you probably want a true
multicast implementation.
> 2. How a process can be contacted?
See ConnectAttach() function documentation. It takes a nid/pid/chid
of a server thread as it's args.
> 3. Is the UDP supported in QNX?
Sure, of course!
> Does the UDP use the Qnet as an underlying transport?
Nope. Qnet and IP are different protocols. Actually,
I lie like a rug. Most of the time, that is true, but
it is possible to run qnet on top of IP, but not the
other way 'round
--
aboyd
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