> To enable the concept of cooperative multitasking, I'd prob have to
> break up the comms into smaller chunks, and have some form of state
> memory for the poe framework to work. This however is not exactly the
> straightforward style of coding as one would normally do (though this is
> prob an arguable pt).
POE is non-blocking operators + iterators + event loop = cooperative
multitasking.
> It seems to me that everyone knows how bad threading is for Perl, and
> rather than openly admit it, we regress (again, another arguable
> position) into cooperative multitasking. IMHO not the right thnig to do.
I think threading in perl is not so bad, but it is still very situational on
where and when
you can really use it due to many modules that are not thread safe and the
extreme memory
overhead if your threads don't need all of the cloned data.
Threads, no matter what language, have their down side. At least in perl
threads you have to be much more involved in mashing global data (in general)
because you have to share it.
I recently stumbled across CLONE_SKIP in threads, which may provide a less
bumpy ride
on these issues, but untested by me ATM.
My current solution is a mixture of cooperative multitasking (event loop) and
parallelism (multiple peer apps using RPC over IPC-Shared Memory, a message
queue, some peer apps are threading).
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