[ZODB-Dev] Threads, ZODB, and how to install ZODB without distutils

[Manuel Vazquez Acosta]

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.

Thanks for your advice, I haven't seen zc.queue, so you comments are 
really an improvement to my knowledge. Besides I'm going to take a peek 
at zc.queue and compare it with my own implementation.

Thanks and best regards,
Manuel.


Gary Poster wrote:
>
> On Feb 11, 2007, at 7:29 PM, Manuel Vazquez Acosta wrote:
>
>> My scenario is akin a consumer-producer with shared buffer. Consumers 
>> pull items from the buffer whilst producers put items in the buffer. 
>> The buffer is an OOBTree along with an IOBTree which gives "serial" 
>> numbers to the keys of the OOBTree.
>
> I'm not sure if this is a match, but if you follow Chris' suggestions 
> (which I recommend generally) then you might want to look at zc.queue: 
> http://cheeseshop.python.org/pypi/zc.queue/ .
>
> Gary
>