On Feb 12, 2007, at 10:01 AM, Manuel Vazquez Acosta wrote:
Hi Gary,
Although the shared buffer indeed has a queue-like interface
there's a catch for my needs. I need that pull method to retrieve
the item in the head and to move the head forward, and not to
remove the item from the buffer. Just like zc.queue I need a single
copy of a item in the queue, but I also need this uniqueness over
the time, so that any item which has being consumed already, does
not get back to buffer.
Ah, OK.
FWIW, you could get the same functionality with a wrapper around a
zc.queue pretty easily, of course, with at least a couple of variants
off the top of my head (both involving an additional data structure
that you maintain, and supplying your own `put` and `pull` that wrap
the zc.queue methods, either with composition or inheritance).
If, instead, you move to a multi-threaded model following the same
approach you outlined before (sequential int keys, IIUC) you'll need
to be careful of write conflict errors.
Gary
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