On Fri, Apr 2, 2010 at 1:10 AM, Ross Finlayson <finlay...@live555.com>wrote:
> I personally find your disdain for threads antiquated and naive >> > > This shows a lack of understanding. It's like saying that the designers of > a bullet train have a "disdain" for air transportation, or conversely that > the designers of an aircraft have a "disdain" for rail transport. On the > contrary. We are talking about two completely different computation models, > each with their pros and cons. > > I have been programming with threads since the mid 1980s - but for the > LIVE555 libraries, I chose a single-threaded event-driven model instead. > This works well for the type of applications that these libraries are > typically used for, especially given that lots of inexperienced programmers > (far more than I had originally anticipated, actually) are using the > software. > > If anyone is interested in this topic, I encourage them to view Professor > John Ousterhout's slide presentation: > http://www.softpanorama.org/People/Ousterhout/Threads/tsld001.htm(Personally, > I wouldn't state the conclusion quite as strongly as he does, > but - as a very experienced threads programmer myself - I agree with the > general argument.) I'd buy this. But I think the library itself must run the way the FAQ mentions; otherwise, it is seriously problematic to use in any realistic manner. It just makes sense to run one RTSPServer or RTSPClient per-thread with its own event loop. The truth of the matter is: the rest of the world uses threads, and I can count the number of projects I participate in that use an eventing model on one hand (on one finger, actually), and almost every media API I use besides this one makes heavy use of threads. Love threads or hate them, it is often tricky to reconcile this disparity. That said, I actually prefer the Live555 model for threading because it makes sense always to have a dedicated thread servicing the network. (doing work on your network thread, besides servicing the network, is a bad idea) But if I had to put multiple clients on a single thread...I'd basically be screwed. That doesn't mesh well with any decent media framework I can think of. Possibly, but remember that the "OP" used a "@gmail.com" address, which tags > him as a noob (absence strong evidence to the contrary :-). Unfortunately, > I've found that such people frequently do not read the FAQ. > Yeah....we're probably not going to agree on that one.
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