[Python-ideas] channel (synchronous queue)

Sturla Molden sturla at molden.no
Mon Feb 20 01:40:28 CET 2012

Den 20.02.2012 00:38, skrev Massimo Di Pierro:
> It would be very useful to have something like these channels 
> built-in. Notice that using OS pipes have the problem of a OS 
> dependent size. send is non-blocking for small data-size but becomes 
> blocking for large data sizes. Using OS mkfifo or multiprocessing 
> Queue is better but the OS limits the number of files open by one 
> program. 

Most MPI implementations use shared memory on localhost. In theory one 
could implement a queue (deque and lock) using a shared memory region (a 
file on /tmp or Windows equivalent). It would be extremely fast and 
could contain any number of "pipes" of arbitrary size.


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