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(python2.1-lib.info)Queue

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A synchronized queue class
==========================

A synchronized queue class.

The `Queue' module implements a multi-producer, multi-consumer FIFO
queue.  It is especially useful in threads programming when information
must be exchanged safely between multiple threads.  The `Queue' class
in this module implements all the required locking semantics.  It
depends on the availability of thread support in Python.

The `Queue' module defines the following class and exception:

`Queue(maxsize)'
     Constructor for the class.  MAXSIZE is an integer that sets the
     upperbound limit on the number of items that can be placed in the
     queue.  Insertion will block once this size has been reached, until
     queue items are consumed.  If MAXSIZE is less than or equal to
     zero, the queue size is infinite.

`Empty'
     Exception raised when non-blocking `get()' (or `get_nowait()') is
     called on a `Queue' object which is empty or locked.

`Full'
     Exception raised when non-blocking `put()' (or `put_nowait()') is
     called on a `Queue' object which is full or locked.

Queue Objects