>> The hard part is knowing when and how to lock shared resources...
Bill> Well, I might say the "careful part".
With the Mojam middleware stuff I suffered quite awhile with a
single-threaded implementation that would hang the entire webserver if a
backend query took too long. I realized I needed to do something (threads,
asyncore, whatever), but didn't think I understood the issues well enough to
do it right. Once I finally bit the bullet and switched to a multithreaded
implementation, I didn't have too much trouble. Of course, the application
was pretty mature at that point and I understood what objects were shared
and needed to be locked. Oh, and I took Aahz's admonition to heart and
pretty much stuck to using Queues for all synchronization. It ain't rocket
science, but it can be subtle.
Skip
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