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Antoine Pitrou bdb1cf1ca5 Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows. 
Also, add a multiprocessing.connection.wait(rlist, timeout=None) function
for polling multiple objects at once.  Patch by sbt.

Complete changelist from sbt's patch:

* Adds a wait(rlist, timeout=None) function for polling multiple
  objects at once.  On Unix this is just a wrapper for
  select(rlist, [], [], timeout=None).

* Removes use of the SentinelReady exception and the sentinels argument
  to certain methods.  concurrent.futures.process has been changed to
  use wait() instead of SentinelReady.

* Fixes bugs concerning PipeConnection.poll() and messages of zero
  length.

* Fixes PipeListener.accept() to call ConnectNamedPipe() with
  overlapped=True.

* Fixes Queue.empty() and SimpleQueue.empty() so that they are
  threadsafe on Windows.

* Now PipeConnection.poll() and wait() will not modify the pipe except
  possibly by consuming a zero length message.  (Previously poll()
  could consume a partial message.)

* All of multiprocesing's pipe related blocking functions/methods are
  now interruptible by SIGINT on Windows.
 		2012-03-05 19:28:37 +01:00
..
dummy Remove unused or redundant imports in concurrent.futures and multiprocessing. 2011-11-11 20:05:50 +01:00
__init__.py Issue #11836: document and expose multiprocessing.SimpleQueue 2012-02-15 23:27:00 +01:00
connection.py Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows. 2012-03-05 19:28:37 +01:00
forking.py Issue #13812: When a multiprocessing Process child raises an exception, flush stderr after printing the exception traceback. 2012-01-27 10:53:35 +01:00
heap.py Remove unused or redundant imports in concurrent.futures and multiprocessing. 2011-11-11 20:05:50 +01:00
managers.py Issue #13565: Increase multiprocessing's server socket backlog, to avoid 2011-12-23 19:07:58 +01:00
pool.py Issue #12708: Add starmap() and starmap_async() methods (similar to itertools.starmap()) to multiprocessing.Pool. 2011-12-21 11:03:24 +01:00
process.py Issue #13812: When a multiprocessing Process child raises an exception, flush stderr after printing the exception traceback. 2012-01-27 10:53:35 +01:00
queues.py Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows. 2012-03-05 19:28:37 +01:00
reduction.py Remove unused or redundant imports in concurrent.futures and multiprocessing. 2011-11-11 20:05:50 +01:00
sharedctypes.py Remove unused or redundant imports in concurrent.futures and multiprocessing. 2011-11-11 20:05:50 +01:00
synchronize.py Remove unused or redundant imports in concurrent.futures and multiprocessing. 2011-11-11 20:05:50 +01:00
util.py Remove unused or redundant imports in concurrent.futures and multiprocessing. 2011-11-11 20:05:50 +01:00