threads or queue for this task
James J. Besemer
jb at cascade-sys.com
Tue Sep 17 01:48:40 EDT 2002
Alex Martelli wrote:
>James J. Besemer wrote:
>
>
>>Generally, Queues never get "full" and you generally don't care if
>>they're empty.
>>
>>
>
>You can define Queues that can hold a maximum number of items; [...]
>
>Setting size is just an optional embellishment, though
>sometimes it does pay dividends.
>
Setting size has it's place but otherwise introduces unnecessary
complications. Among other things, it forces the queue writer to deal
with the situation of what to do if the queue is full. Signal error
back to its client? Sleep and try again later? Silently discard the
request? Abort?
"Generally," NOT having a limit is by far the more elegant solution.
Even in the general case, the queue may eventually grow to consume all
available memory if one doesn't have the CPU power to keep up with
requests. But, like most Python errors, this eventually will raise a
specific exception.
Anyway, I felt the "general" case was more applicable to this novice's
line of questioning. He/she already was confounded by some
non-essential details.
Regards
--jb
--
James J. Besemer 503-280-0838 voice
2727 NE Skidmore St. 503-280-0375 fax
Portland, Oregon 97211-6557 mailto:jb at cascade-sys.com
http://cascade-sys.com
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