Simple example of threading

[Tres Seaver]

In article <p0og96y6a4.fsf at gups.holylane.de>,
Dirk Vleugels  <dvl at de.uu.net> wrote:
>
>Hi,
>
>rmeegan at murlmail.com writes:
>> [Thomas Weholt]
>> There is something to be said for spawning new processes to handle 
>> server requests. In particular, parent processes can kill their 
>> children when they wander off and start misbehaving. Threads can't be 
>> killed by other threads, including the main thread of the process that 
>> spawned them.
>
>Is this true? Under posix_threads there is pthread_cancel. This call
>is used to 'cancel' misbehaving threads (blocking on certain system
>calls (see doc)). The thread may ignore cancel requests, but this is
>under user control. 
>
>Sadly, pthread_cancel is missing in python, dunno why.

Thread cancellation is both highly unportable and highly dangerous -- the
cancelled thread doesn't get to clean up on its way out.  "Don't go there"
is pretty good advice, I've found.

Erinye'ly,

Tres.
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Tres Seaver           tseaver at palladion.com       713-523-6582
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