cpython-lru_cache-weakref: Lib/multiprocessing/synchronize.py annotate

annotate Lib/multiprocessing/synchronize.py @ 58925:eecf1bef052d 2.6

Merged revisions 78207 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78207 | ezio.melotti | 2010-02-17 01:26:09 +0200 (Wed, 17 Feb 2010) | 1 line #7930: fix stripid ........

author	Ezio Melotti <ezio.melotti@gmail.com>
date	Tue, 16 Feb 2010 23:29:44 +0000
parents	b4964df64384
children	cc2c7133da4f

rev	line source
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	1 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	2 # Module implementing synchronization primitives
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	3 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	4 # multiprocessing/synchronize.py
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	5 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	6 # Copyright (c) 2006-2008, R Oudkerk --- see COPYING.txt
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	7 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	8
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	9 __all__ = [
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	10 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', 'Condition', 'Event'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	11 ]
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	12
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	13 import threading
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	14 import os
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	15 import sys
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	16
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	17 from time import time as _time, sleep as _sleep
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	18
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	19 import _multiprocessing
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	20 from multiprocessing.process import current_process
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	21 from multiprocessing.util import Finalize, register_after_fork, debug
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	22 from multiprocessing.forking import assert_spawning, Popen
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	23
49346 b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	24 # Try to import the mp.synchronize module cleanly, if it fails
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	25 # raise ImportError for platforms lacking a working sem_open implementation.
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	26 # See issue 3770
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	27 try:
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	28 from _multiprocessing import SemLock
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	29 except (ImportError):
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	30 raise ImportError("This platform lacks a functioning sem_open" +
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	31 " implementation, therefore, the required" +
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	32 " synchronization primitives needed will not" +
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	33 " function, see issue 3770.")
b4964df64384 issue3770: if SEM_OPEN is 0, disable the mp.synchronize module, rev. Nick Coghlan, Damien Miller Jesse Noller <jnoller@gmail.com> parents: 48931 diff changeset	34
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	35 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	36 # Constants
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	37 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	38
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	39 RECURSIVE_MUTEX, SEMAPHORE = range(2)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	40 SEM_VALUE_MAX = _multiprocessing.SemLock.SEM_VALUE_MAX
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	41
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	42 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	43 # Base class for semaphores and mutexes; wraps `_multiprocessing.SemLock`
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	44 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	45
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	46 class SemLock(object):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	47
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	48 def __init__(self, kind, value, maxvalue):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	49 sl = self._semlock = _multiprocessing.SemLock(kind, value, maxvalue)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	50 debug('created semlock with handle %s' % sl.handle)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	51 self._make_methods()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	52
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	53 if sys.platform != 'win32':
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	54 def _after_fork(obj):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	55 obj._semlock._after_fork()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	56 register_after_fork(self, _after_fork)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	57
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	58 def _make_methods(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	59 self.acquire = self._semlock.acquire
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	60 self.release = self._semlock.release
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	61 self.__enter__ = self._semlock.__enter__
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	62 self.__exit__ = self._semlock.__exit__
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	63
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	64 def __getstate__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	65 assert_spawning(self)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	66 sl = self._semlock
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	67 return (Popen.duplicate_for_child(sl.handle), sl.kind, sl.maxvalue)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	68
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	69 def __setstate__(self, state):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	70 self._semlock = _multiprocessing.SemLock._rebuild(*state)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	71 debug('recreated blocker with handle %r' % state[0])
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	72 self._make_methods()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	73
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	74 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	75 # Semaphore
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	76 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	77
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	78 class Semaphore(SemLock):
48931 51f795c9530e revert r66114 for Jesse Benjamin Peterson <benjamin@python.org> parents: 48930 diff changeset	79
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	80 def __init__(self, value=1):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	81 SemLock.__init__(self, SEMAPHORE, value, SEM_VALUE_MAX)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	82
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	83 def get_value(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	84 return self._semlock._get_value()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	85
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	86 def __repr__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	87 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	88 value = self._semlock._get_value()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	89 except Exception:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	90 value = 'unknown'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	91 return '<Semaphore(value=%s)>' % value
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	92
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	93 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	94 # Bounded semaphore
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	95 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	96
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	97 class BoundedSemaphore(Semaphore):
48931 51f795c9530e revert r66114 for Jesse Benjamin Peterson <benjamin@python.org> parents: 48930 diff changeset	98
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	99 def __init__(self, value=1):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	100 SemLock.__init__(self, SEMAPHORE, value, value)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	101
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	102 def __repr__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	103 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	104 value = self._semlock._get_value()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	105 except Exception:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	106 value = 'unknown'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	107 return '<BoundedSemaphore(value=%s, maxvalue=%s)>' % \
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	108 (value, self._semlock.maxvalue)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	109
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	110 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	111 # Non-recursive lock
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	112 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	113
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	114 class Lock(SemLock):
48931 51f795c9530e revert r66114 for Jesse Benjamin Peterson <benjamin@python.org> parents: 48930 diff changeset	115
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	116 def __init__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	117 SemLock.__init__(self, SEMAPHORE, 1, 1)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	118
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	119 def __repr__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	120 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	121 if self._semlock._is_mine():
48302 7ea805d879e1 issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included. Jesse Noller <jnoller@gmail.com> parents: 47696 diff changeset	122 name = current_process().name
7ea805d879e1 issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included. Jesse Noller <jnoller@gmail.com> parents: 47696 diff changeset	123 if threading.current_thread().name != 'MainThread':
7ea805d879e1 issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included. Jesse Noller <jnoller@gmail.com> parents: 47696 diff changeset	124 name += '\|' + threading.current_thread().name
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	125 elif self._semlock._get_value() == 1:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	126 name = 'None'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	127 elif self._semlock._count() > 0:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	128 name = 'SomeOtherThread'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	129 else:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	130 name = 'SomeOtherProcess'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	131 except Exception:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	132 name = 'unknown'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	133 return '<Lock(owner=%s)>' % name
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	134
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	135 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	136 # Recursive lock
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	137 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	138
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	139 class RLock(SemLock):
48931 51f795c9530e revert r66114 for Jesse Benjamin Peterson <benjamin@python.org> parents: 48930 diff changeset	140
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	141 def __init__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	142 SemLock.__init__(self, RECURSIVE_MUTEX, 1, 1)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	143
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	144 def __repr__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	145 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	146 if self._semlock._is_mine():
48302 7ea805d879e1 issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included. Jesse Noller <jnoller@gmail.com> parents: 47696 diff changeset	147 name = current_process().name
7ea805d879e1 issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included. Jesse Noller <jnoller@gmail.com> parents: 47696 diff changeset	148 if threading.current_thread().name != 'MainThread':
7ea805d879e1 issue3352: clean up the multiprocessing API to remove many get_/set_ methods and convert them to properties. Update the docs and the examples included. Jesse Noller <jnoller@gmail.com> parents: 47696 diff changeset	149 name += '\|' + threading.current_thread().name
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	150 count = self._semlock._count()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	151 elif self._semlock._get_value() == 1:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	152 name, count = 'None', 0
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	153 elif self._semlock._count() > 0:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	154 name, count = 'SomeOtherThread', 'nonzero'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	155 else:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	156 name, count = 'SomeOtherProcess', 'nonzero'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	157 except Exception:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	158 name, count = 'unknown', 'unknown'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	159 return '<RLock(%s, %s)>' % (name, count)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	160
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	161 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	162 # Condition variable
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	163 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	164
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	165 class Condition(object):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	166
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	167 def __init__(self, lock=None):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	168 self._lock = lock or RLock()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	169 self._sleeping_count = Semaphore(0)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	170 self._woken_count = Semaphore(0)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	171 self._wait_semaphore = Semaphore(0)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	172 self._make_methods()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	173
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	174 def __getstate__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	175 assert_spawning(self)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	176 return (self._lock, self._sleeping_count,
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	177 self._woken_count, self._wait_semaphore)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	178
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	179 def __setstate__(self, state):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	180 (self._lock, self._sleeping_count,
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	181 self._woken_count, self._wait_semaphore) = state
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	182 self._make_methods()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	183
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	184 def _make_methods(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	185 self.acquire = self._lock.acquire
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	186 self.release = self._lock.release
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	187 self.__enter__ = self._lock.__enter__
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	188 self.__exit__ = self._lock.__exit__
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	189
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	190 def __repr__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	191 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	192 num_waiters = (self._sleeping_count._semlock._get_value() -
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	193 self._woken_count._semlock._get_value())
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	194 except Exception:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	195 num_waiters = 'unkown'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	196 return '<Condition(%s, %s)>' % (self._lock, num_waiters)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	197
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	198 def wait(self, timeout=None):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	199 assert self._lock._semlock._is_mine(), \
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	200 'must acquire() condition before using wait()'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	201
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	202 # indicate that this thread is going to sleep
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	203 self._sleeping_count.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	204
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	205 # release lock
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	206 count = self._lock._semlock._count()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	207 for i in xrange(count):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	208 self._lock.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	209
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	210 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	211 # wait for notification or timeout
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	212 self._wait_semaphore.acquire(True, timeout)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	213 finally:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	214 # indicate that this thread has woken
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	215 self._woken_count.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	216
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	217 # reacquire lock
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	218 for i in xrange(count):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	219 self._lock.acquire()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	220
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	221 def notify(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	222 assert self._lock._semlock._is_mine(), 'lock is not owned'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	223 assert not self._wait_semaphore.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	224
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	225 # to take account of timeouts since last notify() we subtract
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	226 # woken_count from sleeping_count and rezero woken_count
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	227 while self._woken_count.acquire(False):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	228 res = self._sleeping_count.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	229 assert res
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	230
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	231 if self._sleeping_count.acquire(False): # try grabbing a sleeper
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	232 self._wait_semaphore.release() # wake up one sleeper
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	233 self._woken_count.acquire() # wait for the sleeper to wake
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	234
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	235 # rezero _wait_semaphore in case a timeout just happened
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	236 self._wait_semaphore.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	237
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	238 def notify_all(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	239 assert self._lock._semlock._is_mine(), 'lock is not owned'
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	240 assert not self._wait_semaphore.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	241
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	242 # to take account of timeouts since last notify*() we subtract
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	243 # woken_count from sleeping_count and rezero woken_count
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	244 while self._woken_count.acquire(False):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	245 res = self._sleeping_count.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	246 assert res
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	247
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	248 sleepers = 0
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	249 while self._sleeping_count.acquire(False):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	250 self._wait_semaphore.release() # wake up one sleeper
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	251 sleepers += 1
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	252
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	253 if sleepers:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	254 for i in xrange(sleepers):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	255 self._woken_count.acquire() # wait for a sleeper to wake
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	256
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	257 # rezero wait_semaphore in case some timeouts just happened
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	258 while self._wait_semaphore.acquire(False):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	259 pass
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	260
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	261 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	262 # Event
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	263 #
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	264
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	265 class Event(object):
48931 51f795c9530e revert r66114 for Jesse Benjamin Peterson <benjamin@python.org> parents: 48930 diff changeset	266
47696 d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	267 def __init__(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	268 self._cond = Condition(Lock())
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	269 self._flag = Semaphore(0)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	270
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	271 def is_set(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	272 self._cond.acquire()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	273 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	274 if self._flag.acquire(False):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	275 self._flag.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	276 return True
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	277 return False
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	278 finally:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	279 self._cond.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	280
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	281 def set(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	282 self._cond.acquire()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	283 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	284 self._flag.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	285 self._flag.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	286 self._cond.notify_all()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	287 finally:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	288 self._cond.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	289
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	290 def clear(self):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	291 self._cond.acquire()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	292 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	293 self._flag.acquire(False)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	294 finally:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	295 self._cond.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	296
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	297 def wait(self, timeout=None):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	298 self._cond.acquire()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	299 try:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	300 if self._flag.acquire(False):
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	301 self._flag.release()
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	302 else:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	303 self._cond.wait(timeout)
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	304 finally:
d01165fae98e darn! I converted half of the files the wrong way. Benjamin Peterson <benjamin@python.org> parents: 47694 diff changeset	305 self._cond.release()

Mercurial > cpython-lru_cache-weakref

annotate Lib/multiprocessing/synchronize.py @ 58925:eecf1bef052d 2.6