cpython-lru_cache-weakref: Lib/threading.py annotate

annotate Lib/threading.py @ 83191:0437c19cdad0

gibibytes (Arfrever)

author	Antoine Pitrou <solipsis@pitrou.net>
date	Sun, 07 Apr 2013 23:46:52 +0200
parents	8c15e57830dd
children	a26df2d03989

rev	line source
24833 ca58f5a4558b Docstring nits: The module is neither proposed nor new. Jeremy Hylton <jeremy@alum.mit.edu> parents: 24830 diff changeset	1 """Thread module emulating a subset of Java's threading model."""
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	2
26905 7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	3 import sys as _sys
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	4 import _thread
26905 7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	5
76597 76d2e0761d18 Issue #14428, #14397: Implement the PEP 418 Victor Stinner <victor.stinner@gmail.com> parents: 76422 diff changeset	6 from time import sleep as _sleep
76d2e0761d18 Issue #14428, #14397: Implement the PEP 418 Victor Stinner <victor.stinner@gmail.com> parents: 76422 diff changeset	7 try:
76d2e0761d18 Issue #14428, #14397: Implement the PEP 418 Victor Stinner <victor.stinner@gmail.com> parents: 76422 diff changeset	8 from time import monotonic as _time
76d2e0761d18 Issue #14428, #14397: Implement the PEP 418 Victor Stinner <victor.stinner@gmail.com> parents: 76422 diff changeset	9 except ImportError:
76d2e0761d18 Issue #14428, #14397: Implement the PEP 418 Victor Stinner <victor.stinner@gmail.com> parents: 76422 diff changeset	10 from time import time as _time
30862 d45f8981fdea Add traceback.format_exc(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 29725 diff changeset	11 from traceback import format_exc as _format_exc
71361 2bedea96de60 Issue #12573: Add resource checks for dangling Thread and Process objects. Antoine Pitrou <solipsis@pitrou.net> parents: 68257 diff changeset	12 from _weakrefset import WeakSet
82861 3969797dd598 Fix import Raymond Hettinger <python@rcn.com> parents: 82594 diff changeset	13 from itertools import islice as _islice
82592 0f86b51f8f8b Issue #17385: Fix quadratic behavior in threading.Condition Raymond Hettinger <python@rcn.com> parents: 82591 diff changeset	14 try:
0f86b51f8f8b Issue #17385: Fix quadratic behavior in threading.Condition Raymond Hettinger <python@rcn.com> parents: 82591 diff changeset	15 from _collections import deque as _deque
0f86b51f8f8b Issue #17385: Fix quadratic behavior in threading.Condition Raymond Hettinger <python@rcn.com> parents: 82591 diff changeset	16 except ImportError:
0f86b51f8f8b Issue #17385: Fix quadratic behavior in threading.Condition Raymond Hettinger <python@rcn.com> parents: 82591 diff changeset	17 from collections import deque as _deque
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	18
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	19 # Note regarding PEP 8 compliant names
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	20 # This threading model was originally inspired by Java, and inherited
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	21 # the convention of camelCase function and method names from that
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	22 # language. Those originaly names are not in any imminent danger of
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	23 # being deprecated (even for Py3k),so this module provides them as an
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	24 # alias for the PEP 8 compliant names
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	25 # Note that using the new PEP 8 compliant names facilitates substitution
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	26 # with the multiprocessing module, which doesn't provide the old
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	27 # Java inspired names.
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	28
67533 2244ac6c2a9b Add entry for Barrier objects. Raymond Hettinger <python@rcn.com> parents: 67354 diff changeset	29 __all__ = ['active_count', 'Condition', 'current_thread', 'enumerate', 'Event',
2244ac6c2a9b Add entry for Barrier objects. Raymond Hettinger <python@rcn.com> parents: 67354 diff changeset	30 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', 'Thread', 'Barrier',
71701 bbeda42ea6a8 add ThreadError to threading.__all__ (closes #12679) Benjamin Peterson <benjamin@python.org> parents: 71560 diff changeset	31 'Timer', 'ThreadError', 'setprofile', 'settrace', 'local', 'stack_size']
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	32
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	33 # Rename some stuff so "from threading import *" is safe
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	34 _start_new_thread = _thread.start_new_thread
7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	35 _allocate_lock = _thread.allocate_lock
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	36 get_ident = _thread.get_ident
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	37 ThreadError = _thread.error
57172 6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	38 try:
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	39 _CRLock = _thread.RLock
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	40 except AttributeError:
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	41 _CRLock = None
60598 01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	42 TIMEOUT_MAX = _thread.TIMEOUT_MAX
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	43 del _thread
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	44
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	45
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	46 # Support for profile and trace hooks
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	47
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	48 _profile_hook = None
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	49 _trace_hook = None
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	50
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	51 def setprofile(func):
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	52 global _profile_hook
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	53 _profile_hook = func
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	54
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	55 def settrace(func):
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	56 global _trace_hook
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	57 _trace_hook = func
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	58
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	59 # Synchronization classes
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	60
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	61 Lock = _allocate_lock
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	62
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	63 def RLock(args, *kwargs):
8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	64 if _CRLock is None:
8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	65 return _PyRLock(args, *kwargs)
57172 6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	66 return _CRLock(args, *kwargs)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	67
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	68 class _RLock:
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	69
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	70 def __init__(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	71 self._block = _allocate_lock()
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	72 self._owner = None
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	73 self._count = 0
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	74
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	75 def __repr__(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	76 owner = self._owner
57160 fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	77 try:
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	78 owner = _active[owner].name
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	79 except KeyError:
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	80 pass
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	81 return "<%s owner=%r count=%d>" % (
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	82 self.__class__.__name__, owner, self._count)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	83
60598 01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	84 def acquire(self, blocking=True, timeout=-1):
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	85 me = get_ident()
57160 fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	86 if self._owner == me:
82591 28b86525ef07 Update code to increment and decrement using the cleaner += 1 and -= 1 style. Raymond Hettinger <python@rcn.com> parents: 76597 diff changeset	87 self._count += 1
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	88 return 1
60598 01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	89 rc = self._block.acquire(blocking, timeout)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	90 if rc:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	91 self._owner = me
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	92 self._count = 1
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	93 return rc
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	94
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	95 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	96
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	97 def release(self):
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	98 if self._owner != get_ident():
56894 b085fd0611de Merged revisions 75797 via svnmerge from Georg Brandl <georg@python.org> parents: 56002 diff changeset	99 raise RuntimeError("cannot release un-acquired lock")
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	100 self._count = count = self._count - 1
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	101 if not count:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	102 self._owner = None
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	103 self._block.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	104
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	105 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	106 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	107
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	108 # Internal methods used by condition variables
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	109
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 40809 diff changeset	110 def _acquire_restore(self, state):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	111 self._block.acquire()
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	112 self._count, self._owner = state
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	113
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	114 def _release_save(self):
69543 2c0da1c4f063 Issue #11915: threading.RLock()._release_save() raises a RuntimeError if the Victor Stinner <victor.stinner@haypocalc.com> parents: 69457 diff changeset	115 if self._count == 0:
2c0da1c4f063 Issue #11915: threading.RLock()._release_save() raises a RuntimeError if the Victor Stinner <victor.stinner@haypocalc.com> parents: 69457 diff changeset	116 raise RuntimeError("cannot release un-acquired lock")
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	117 count = self._count
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	118 self._count = 0
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	119 owner = self._owner
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	120 self._owner = None
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	121 self._block.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	122 return (count, owner)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	123
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	124 def _is_owned(self):
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	125 return self._owner == get_ident()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	126
57172 6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	127 _PyRLock = _RLock
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	128
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	129
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	130 class Condition:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	131
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	132 def __init__(self, lock=None):
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	133 if lock is None:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	134 lock = RLock()
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	135 self._lock = lock
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	136 # Export the lock's acquire() and release() methods
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	137 self.acquire = lock.acquire
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	138 self.release = lock.release
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	139 # If the lock defines _release_save() and/or _acquire_restore(),
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	140 # these override the default implementations (which just call
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	141 # release() and acquire() on the lock). Ditto for _is_owned().
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	142 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	143 self._release_save = lock._release_save
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	144 except AttributeError:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	145 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	146 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	147 self._acquire_restore = lock._acquire_restore
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	148 except AttributeError:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	149 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	150 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	151 self._is_owned = lock._is_owned
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	152 except AttributeError:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	153 pass
82592 0f86b51f8f8b Issue #17385: Fix quadratic behavior in threading.Condition Raymond Hettinger <python@rcn.com> parents: 82591 diff changeset	154 self._waiters = _deque()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	155
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 36926 diff changeset	156 def __enter__(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	157 return self._lock.__enter__()
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	158
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 36926 diff changeset	159 def __exit__(self, *args):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	160 return self._lock.__exit__(*args)
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	161
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	162 def __repr__(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	163 return "<Condition(%s, %d)>" % (self._lock, len(self._waiters))
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	164
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	165 def _release_save(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	166 self._lock.release() # No state to save
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	167
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	168 def _acquire_restore(self, x):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	169 self._lock.acquire() # Ignore saved state
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	170
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	171 def _is_owned(self):
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	172 # Return True if lock is owned by current_thread.
24827 e5a07cc81559 Explain a minor mystery. Jeremy Hylton <jeremy@alum.mit.edu> parents: 24058 diff changeset	173 # This method is called only if __lock doesn't have _is_owned().
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	174 if self._lock.acquire(0):
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	175 self._lock.release()
22830 a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool. Tim Peters <tim.peters@gmail.com> parents: 21981 diff changeset	176 return False
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	177 else:
22830 a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool. Tim Peters <tim.peters@gmail.com> parents: 21981 diff changeset	178 return True
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	179
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	180 def wait(self, timeout=None):
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	181 if not self._is_owned():
56894 b085fd0611de Merged revisions 75797 via svnmerge from Georg Brandl <georg@python.org> parents: 56002 diff changeset	182 raise RuntimeError("cannot wait on un-acquired lock")
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	183 waiter = _allocate_lock()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	184 waiter.acquire()
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	185 self._waiters.append(waiter)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	186 saved_state = self._release_save()
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	187 try: # restore state no matter what (e.g., KeyboardInterrupt)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	188 if timeout is None:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	189 waiter.acquire()
65675 6dff581d30f3 #10218: return timeout status from Condition.wait, mirroring other primitives' behavior. Georg Brandl <georg@python.org> parents: 63166 diff changeset	190 gotit = True
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	191 else:
60598 01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	192 if timeout > 0:
01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	193 gotit = waiter.acquire(True, timeout)
01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	194 else:
01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	195 gotit = waiter.acquire(False)
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	196 if not gotit:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	197 try:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	198 self._waiters.remove(waiter)
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	199 except ValueError:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	200 pass
65675 6dff581d30f3 #10218: return timeout status from Condition.wait, mirroring other primitives' behavior. Georg Brandl <georg@python.org> parents: 63166 diff changeset	201 return gotit
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	202 finally:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	203 self._acquire_restore(saved_state)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	204
66229 483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	205 def wait_for(self, predicate, timeout=None):
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	206 endtime = None
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	207 waittime = timeout
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	208 result = predicate()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	209 while not result:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	210 if waittime is not None:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	211 if endtime is None:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	212 endtime = _time() + waittime
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	213 else:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	214 waittime = endtime - _time()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	215 if waittime <= 0:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	216 break
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	217 self.wait(waittime)
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	218 result = predicate()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	219 return result
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	220
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	221 def notify(self, n=1):
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	222 if not self._is_owned():
56894 b085fd0611de Merged revisions 75797 via svnmerge from Georg Brandl <georg@python.org> parents: 56002 diff changeset	223 raise RuntimeError("cannot notify on un-acquired lock")
82594 79943dee0aca Improve variable names Raymond Hettinger <python@rcn.com> parents: 82592 diff changeset	224 all_waiters = self._waiters
79943dee0aca Improve variable names Raymond Hettinger <python@rcn.com> parents: 82592 diff changeset	225 waiters_to_notify = _deque(_islice(all_waiters, n))
79943dee0aca Improve variable names Raymond Hettinger <python@rcn.com> parents: 82592 diff changeset	226 if not waiters_to_notify:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	227 return
82594 79943dee0aca Improve variable names Raymond Hettinger <python@rcn.com> parents: 82592 diff changeset	228 for waiter in waiters_to_notify:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	229 waiter.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	230 try:
82594 79943dee0aca Improve variable names Raymond Hettinger <python@rcn.com> parents: 82592 diff changeset	231 all_waiters.remove(waiter)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	232 except ValueError:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	233 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	234
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	235 def notify_all(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	236 self.notify(len(self._waiters))
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	237
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	238 notifyAll = notify_all
4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	239
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	240
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	241 class Semaphore:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	242
11876 c27d3e8c45c4 Fix a typo in a comment Andrew M. Kuchling <amk@amk.ca> parents: 11707 diff changeset	243 # After Tim Peters' semaphore class, but not quite the same (no maximum)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	244
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	245 def __init__(self, value=1):
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	246 if value < 0:
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	247 raise ValueError("semaphore initial value must be >= 0")
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	248 self._cond = Condition(Lock())
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	249 self._value = value
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	250
60665 bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	251 def acquire(self, blocking=True, timeout=None):
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	252 if not blocking and timeout is not None:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	253 raise ValueError("can't specify timeout for non-blocking acquire")
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	254 rc = False
60665 bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	255 endtime = None
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	256 self._cond.acquire()
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	257 while self._value == 0:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	258 if not blocking:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	259 break
60665 bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	260 if timeout is not None:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	261 if endtime is None:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	262 endtime = _time() + timeout
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	263 else:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	264 timeout = endtime - _time()
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	265 if timeout <= 0:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	266 break
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	267 self._cond.wait(timeout)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	268 else:
82591 28b86525ef07 Update code to increment and decrement using the cleaner += 1 and -= 1 style. Raymond Hettinger <python@rcn.com> parents: 76597 diff changeset	269 self._value -= 1
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	270 rc = True
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	271 self._cond.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	272 return rc
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	273
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	274 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	275
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	276 def release(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	277 self._cond.acquire()
82591 28b86525ef07 Update code to increment and decrement using the cleaner += 1 and -= 1 style. Raymond Hettinger <python@rcn.com> parents: 76597 diff changeset	278 self._value += 1
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	279 self._cond.notify()
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	280 self._cond.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	281
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	282 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	283 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	284
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	285
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	286 class BoundedSemaphore(Semaphore):
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	287 """Semaphore that checks that # releases is <= # acquires"""
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	288 def __init__(self, value=1):
8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	289 Semaphore.__init__(self, value)
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	290 self._initial_value = value
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	291
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	292 def release(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	293 if self._value >= self._initial_value:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42679 diff changeset	294 raise ValueError("Semaphore released too many times")
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	295 return Semaphore.release(self)
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	296
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	297
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	298 class Event:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	299
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	300 # After Tim Peters' event class (without is_posted())
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	301
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	302 def __init__(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	303 self._cond = Condition(Lock())
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	304 self._flag = False
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	305
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	306 def _reset_internal_locks(self):
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	307 # private! called by Thread._reset_internal_locks by _after_fork()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	308 self._cond.__init__()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	309
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	310 def is_set(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	311 return self._flag
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	312
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	313 isSet = is_set
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	314
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	315 def set(self):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	316 self._cond.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	317 try:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	318 self._flag = True
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	319 self._cond.notify_all()
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	320 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	321 self._cond.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	322
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	323 def clear(self):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	324 self._cond.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	325 try:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	326 self._flag = False
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	327 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	328 self._cond.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	329
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	330 def wait(self, timeout=None):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	331 self._cond.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	332 try:
74292 eb39d862a250 Issue #13502: threading: Fix a race condition in Event.wait() that made it Charles-François Natali <neologix@free.fr> parents: 74037 diff changeset	333 signaled = self._flag
eb39d862a250 Issue #13502: threading: Fix a race condition in Event.wait() that made it Charles-François Natali <neologix@free.fr> parents: 74037 diff changeset	334 if not signaled:
eb39d862a250 Issue #13502: threading: Fix a race condition in Event.wait() that made it Charles-François Natali <neologix@free.fr> parents: 74037 diff changeset	335 signaled = self._cond.wait(timeout)
eb39d862a250 Issue #13502: threading: Fix a race condition in Event.wait() that made it Charles-François Natali <neologix@free.fr> parents: 74037 diff changeset	336 return signaled
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	337 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	338 self._cond.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	339
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	340
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	341 # A barrier class. Inspired in part by the pthread_barrier_* api and
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	342 # the CyclicBarrier class from Java. See
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	343 # http://sourceware.org/pthreads-win32/manual/pthread_barrier_init.html and
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	344 # http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	345 # CyclicBarrier.html
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	346 # for information.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	347 # We maintain two main states, 'filling' and 'draining' enabling the barrier
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	348 # to be cyclic. Threads are not allowed into it until it has fully drained
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	349 # since the previous cycle. In addition, a 'resetting' state exists which is
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	350 # similar to 'draining' except that threads leave with a BrokenBarrierError,
72985 e19ccbbe70dd Remove duplication. Ezio Melotti <ezio.melotti@gmail.com> parents: 71361 diff changeset	351 # and a 'broken' state in which all threads get the exception.
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	352 class Barrier:
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	353 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	354 Barrier. Useful for synchronizing a fixed number of threads
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	355 at known synchronization points. Threads block on 'wait()' and are
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	356 simultaneously once they have all made that call.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	357 """
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	358 def __init__(self, parties, action=None, timeout=None):
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	359 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	360 Create a barrier, initialised to 'parties' threads.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	361 'action' is a callable which, when supplied, will be called
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	362 by one of the threads after they have all entered the
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	363 barrier and just prior to releasing them all.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	364 If a 'timeout' is provided, it is uses as the default for
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	365 all subsequent 'wait()' calls.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	366 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	367 self._cond = Condition(Lock())
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	368 self._action = action
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	369 self._timeout = timeout
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	370 self._parties = parties
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	371 self._state = 0 #0 filling, 1, draining, -1 resetting, -2 broken
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	372 self._count = 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	373
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	374 def wait(self, timeout=None):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	375 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	376 Wait for the barrier. When the specified number of threads have
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	377 started waiting, they are all simultaneously awoken. If an 'action'
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	378 was provided for the barrier, one of the threads will have executed
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	379 that callback prior to returning.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	380 Returns an individual index number from 0 to 'parties-1'.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	381 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	382 if timeout is None:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	383 timeout = self._timeout
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	384 with self._cond:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	385 self._enter() # Block while the barrier drains.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	386 index = self._count
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	387 self._count += 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	388 try:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	389 if index + 1 == self._parties:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	390 # We release the barrier
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	391 self._release()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	392 else:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	393 # We wait until someone releases us
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	394 self._wait(timeout)
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	395 return index
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	396 finally:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	397 self._count -= 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	398 # Wake up any threads waiting for barrier to drain.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	399 self._exit()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	400
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	401 # Block until the barrier is ready for us, or raise an exception
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	402 # if it is broken.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	403 def _enter(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	404 while self._state in (-1, 1):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	405 # It is draining or resetting, wait until done
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	406 self._cond.wait()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	407 #see if the barrier is in a broken state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	408 if self._state < 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	409 raise BrokenBarrierError
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	410 assert self._state == 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	411
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	412 # Optionally run the 'action' and release the threads waiting
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	413 # in the barrier.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	414 def _release(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	415 try:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	416 if self._action:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	417 self._action()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	418 # enter draining state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	419 self._state = 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	420 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	421 except:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	422 #an exception during the _action handler. Break and reraise
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	423 self._break()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	424 raise
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	425
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	426 # Wait in the barrier until we are relased. Raise an exception
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	427 # if the barrier is reset or broken.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	428 def _wait(self, timeout):
66229 483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	429 if not self._cond.wait_for(lambda : self._state != 0, timeout):
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	430 #timed out. Break the barrier
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	431 self._break()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	432 raise BrokenBarrierError
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	433 if self._state < 0:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	434 raise BrokenBarrierError
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	435 assert self._state == 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	436
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	437 # If we are the last thread to exit the barrier, signal any threads
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	438 # waiting for the barrier to drain.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	439 def _exit(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	440 if self._count == 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	441 if self._state in (-1, 1):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	442 #resetting or draining
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	443 self._state = 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	444 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	445
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	446 def reset(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	447 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	448 Reset the barrier to the initial state.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	449 Any threads currently waiting will get the BrokenBarrier exception
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	450 raised.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	451 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	452 with self._cond:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	453 if self._count > 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	454 if self._state == 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	455 #reset the barrier, waking up threads
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	456 self._state = -1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	457 elif self._state == -2:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	458 #was broken, set it to reset state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	459 #which clears when the last thread exits
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	460 self._state = -1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	461 else:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	462 self._state = 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	463 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	464
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	465 def abort(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	466 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	467 Place the barrier into a 'broken' state.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	468 Useful in case of error. Any currently waiting threads and
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	469 threads attempting to 'wait()' will have BrokenBarrierError
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	470 raised.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	471 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	472 with self._cond:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	473 self._break()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	474
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	475 def _break(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	476 # An internal error was detected. The barrier is set to
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	477 # a broken state all parties awakened.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	478 self._state = -2
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	479 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	480
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	481 @property
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	482 def parties(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	483 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	484 Return the number of threads required to trip the barrier.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	485 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	486 return self._parties
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	487
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	488 @property
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	489 def n_waiting(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	490 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	491 Return the number of threads that are currently waiting at the barrier.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	492 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	493 # We don't need synchronization here since this is an ephemeral result
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	494 # anyway. It returns the correct value in the steady state.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	495 if self._state == 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	496 return self._count
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	497 return 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	498
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	499 @property
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	500 def broken(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	501 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	502 Return True if the barrier is in a broken state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	503 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	504 return self._state == -2
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	505
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	506 #exception raised by the Barrier class
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	507 class BrokenBarrierError(RuntimeError): pass
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	508
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	509
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	510 # Helper to generate new thread names
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	511 _counter = 0
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	512 def _newname(template="Thread-%d"):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	513 global _counter
82591 28b86525ef07 Update code to increment and decrement using the cleaner += 1 and -= 1 style. Raymond Hettinger <python@rcn.com> parents: 76597 diff changeset	514 _counter += 1
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	515 return template % _counter
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	516
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	517 # Active thread administration
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	518 _active_limbo_lock = _allocate_lock()
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	519 _active = {} # maps thread id to Thread object
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	520 _limbo = {}
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	521
71361 2bedea96de60 Issue #12573: Add resource checks for dangling Thread and Process objects. Antoine Pitrou <solipsis@pitrou.net> parents: 68257 diff changeset	522 # For debug and leak testing
2bedea96de60 Issue #12573: Add resource checks for dangling Thread and Process objects. Antoine Pitrou <solipsis@pitrou.net> parents: 68257 diff changeset	523 _dangling = WeakSet()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	524
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	525 # Main class for threads
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	526
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	527 class Thread:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	528
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	529 __initialized = False
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	530 # Need to store a reference to sys.exc_info for printing
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	531 # out exceptions when a thread tries to use a global var. during interp.
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	532 # shutdown and thus raises an exception about trying to perform some
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	533 # operation on/with a NoneType
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	534 __exc_info = _sys.exc_info
46161 848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	535 # Keep sys.exc_clear too to clear the exception just before
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	536 # allowing .join() to return.
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	537 #XXX __exc_clear = _sys.exc_clear
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	538
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	539 def __init__(self, group=None, target=None, name=None,
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	540 args=(), kwargs=None, *, daemon=None):
8474 049aa3a8a172 Get rid of tabnanny's last complaints. Guido van Rossum <guido@python.org> parents: 8454 diff changeset	541 assert group is None, "group argument must be None for now"
35236 d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	542 if kwargs is None:
d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	543 kwargs = {}
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	544 self._target = target
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	545 self._name = str(name or _newname())
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	546 self._args = args
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	547 self._kwargs = kwargs
68155 f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	548 if daemon is not None:
f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	549 self._daemonic = daemon
f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	550 else:
f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	551 self._daemonic = current_thread().daemon
47555 7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	552 self._ident = None
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	553 self._started = Event()
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	554 self._stopped = False
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	555 self._block = Condition(Lock())
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	556 self._initialized = True
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	557 # sys.stderr is not stored in the class like
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	558 # sys.exc_info since it can be changed between instances
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	559 self._stderr = _sys.stderr
71361 2bedea96de60 Issue #12573: Add resource checks for dangling Thread and Process objects. Antoine Pitrou <solipsis@pitrou.net> parents: 68257 diff changeset	560 _dangling.add(self)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	561
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	562 def _reset_internal_locks(self):
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	563 # private! Called by _after_fork() to reset our internal locks as
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	564 # they may be in an invalid state leading to a deadlock or crash.
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	565 if hasattr(self, '_block'): # DummyThread deletes _block
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	566 self._block.__init__()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	567 self._started._reset_internal_locks()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	568
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	569 def __repr__(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	570 assert self._initialized, "Thread.__init__() was not called"
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	571 status = "initial"
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	572 if self._started.is_set():
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	573 status = "started"
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	574 if self._stopped:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	575 status = "stopped"
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	576 if self._daemonic:
47555 7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	577 status += " daemon"
7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	578 if self._ident is not None:
7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	579 status += " %s" % self._ident
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	580 return "<%s(%s, %s)>" % (self.__class__.__name__, self._name, status)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	581
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	582 def start(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	583 if not self._initialized:
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	584 raise RuntimeError("thread.__init__() not called")
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	585
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	586 if self._started.is_set():
60379 c10024abd118 Merged revisions 79819 via svnmerge from Senthil Kumaran <orsenthil@gmail.com> parents: 59203 diff changeset	587 raise RuntimeError("threads can only be started once")
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	588 with _active_limbo_lock:
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	589 _limbo[self] = self
59203 9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	590 try:
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	591 _start_new_thread(self._bootstrap, ())
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	592 except Exception:
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	593 with _active_limbo_lock:
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	594 del _limbo[self]
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	595 raise
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	596 self._started.wait()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	597
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	598 def run(self):
45495 48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	599 try:
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	600 if self._target:
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	601 self._target(self._args, *self._kwargs)
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	602 finally:
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	603 # Avoid a refcycle if the thread is running a function with
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	604 # an argument that has a member that points to the thread.
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	605 del self._target, self._args, self._kwargs
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	606
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	607 def _bootstrap(self):
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	608 # Wrapper around the real bootstrap code that ignores
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	609 # exceptions during interpreter cleanup. Those typically
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	610 # happen when a daemon thread wakes up at an unfortunate
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	611 # moment, finds the world around it destroyed, and raises some
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	612 # random exception *** while trying to report the exception in
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	613 # _bootstrap_inner() below ***. Those random exceptions
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	614 # don't help anybody, and they confuse users, so we suppress
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	615 # them. We suppress them only when it appears that the world
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	616 # indeed has already been destroyed, so that exceptions in
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	617 # _bootstrap_inner() during normal business hours are properly
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	618 # reported. Also, we only suppress them for daemonic threads;
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	619 # if a non-daemonic encounters this, something else is wrong.
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	620 try:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	621 self._bootstrap_inner()
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	622 except:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	623 if self._daemonic and _sys is None:
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	624 return
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	625 raise
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	626
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	627 def _set_ident(self):
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	628 self._ident = get_ident()
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	629
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	630 def _bootstrap_inner(self):
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	631 try:
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	632 self._set_ident()
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	633 self._started.set()
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	634 with _active_limbo_lock:
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	635 _active[self._ident] = self
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	636 del _limbo[self]
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	637
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	638 if _trace_hook:
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	639 _sys.settrace(_trace_hook)
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	640 if _profile_hook:
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	641 _sys.setprofile(_profile_hook)
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	642
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	643 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	644 self.run()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	645 except SystemExit:
75373 8ec51b2e57c2 Close #13550: Remove the debug machinery from the threading module: remove Victor Stinner <victor.stinner@gmail.com> parents: 74750 diff changeset	646 pass
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	647 except:
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	648 # If sys.stderr is no more (most likely from interpreter
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	649 # shutdown) use self._stderr. Otherwise still use sys (as in
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	650 # _sys) in case sys.stderr was redefined since the creation of
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	651 # self.
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	652 if _sys:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	653 _sys.stderr.write("Exception in thread %s:\n%s\n" %
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	654 (self.name, _format_exc()))
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	655 else:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	656 # Do the best job possible w/o a huge amt. of code to
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	657 # approximate a traceback (code ideas from
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	658 # Lib/traceback.py)
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	659 exc_type, exc_value, exc_tb = self._exc_info()
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	660 try:
40775 4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 40582 diff changeset	661 print((
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	662 "Exception in thread " + self.name +
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	663 " (most likely raised during interpreter shutdown):"), file=self._stderr)
40775 4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 40582 diff changeset	664 print((
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	665 "Traceback (most recent call last):"), file=self._stderr)
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	666 while exc_tb:
40775 4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 40582 diff changeset	667 print((
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	668 ' File "%s", line %s, in %s' %
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	669 (exc_tb.tb_frame.f_code.co_filename,
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	670 exc_tb.tb_lineno,
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	671 exc_tb.tb_frame.f_code.co_name)), file=self._stderr)
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	672 exc_tb = exc_tb.tb_next
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	673 print(("%s: %s" % (exc_type, exc_value)), file=self._stderr)
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	674 # Make sure that exc_tb gets deleted since it is a memory
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	675 # hog; deleting everything else is just for thoroughness
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	676 finally:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	677 del exc_type, exc_value, exc_tb
46161 848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	678 finally:
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	679 # Prevent a race in
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	680 # test_threading.test_no_refcycle_through_target when
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	681 # the exception keeps the target alive past when we
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	682 # assert that it's dead.
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	683 #XXX self.__exc_clear()
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	684 pass
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	685 finally:
44885 fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	686 with _active_limbo_lock:
fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	687 self._stop()
fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	688 try:
47555 7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	689 # We don't call self._delete() because it also
44885 fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	690 # grabs _active_limbo_lock.
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	691 del _active[get_ident()]
44885 fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	692 except:
fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	693 pass
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	694
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	695 def _stop(self):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	696 self._block.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	697 self._stopped = True
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	698 self._block.notify_all()
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	699 self._block.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	700
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	701 def _delete(self):
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	702 "Remove current thread from the dict of currently running threads."
32774 8a91cd7d7e82 Fix bug where a KeyError was raised if -O was being used for the interpreter Brett Cannon <bcannon@gmail.com> parents: 32673 diff changeset	703
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	704 # Notes about running with _dummy_thread:
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	705 #
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	706 # Must take care to not raise an exception if _dummy_thread is being
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	707 # used (and thus this module is being used as an instance of
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	708 # dummy_threading). _dummy_thread.get_ident() always returns -1 since
7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	709 # there is only one thread if _dummy_thread is being used. Thus
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	710 # len(_active) is always <= 1 here, and any Thread instance created
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	711 # overwrites the (if any) thread currently registered in _active.
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	712 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	713 # An instance of _MainThread is always created by 'threading'. This
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	714 # gets overwritten the instant an instance of Thread is created; both
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	715 # threads return -1 from _dummy_thread.get_ident() and thus have the
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	716 # same key in the dict. So when the _MainThread instance created by
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	717 # 'threading' tries to clean itself up when atexit calls this method
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	718 # it gets a KeyError if another Thread instance was created.
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	719 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	720 # This all means that KeyError from trying to delete something from
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	721 # _active if dummy_threading is being used is a red herring. But
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	722 # since it isn't if dummy_threading is not being used then don't
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	723 # hide the exception.
32774 8a91cd7d7e82 Fix bug where a KeyError was raised if -O was being used for the interpreter Brett Cannon <bcannon@gmail.com> parents: 32673 diff changeset	724
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	725 try:
46304 3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	726 with _active_limbo_lock:
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	727 del _active[get_ident()]
46304 3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	728 # There must not be any python code between the previous line
3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	729 # and after the lock is released. Otherwise a tracing function
3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	730 # could try to acquire the lock again in the same thread, (in
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	731 # current_thread()), and would block.
46304 3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	732 except KeyError:
3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	733 if 'dummy_threading' not in _sys.modules:
3442e9e6b2cf Merged revisions 61440-61441,61443,61445-61448,61451-61452,61455-61457,61459-61464,61466-61467,61469-61470,61476-61477,61479,61481-61482,61485,61487,61490,61493-61494,61497,61499-61502,61505-61506,61508,61511-61514,61519,61521-61522,61530-61531,61533-61537,61541-61555,61557-61558,61561-61562,61566-61569,61572-61574,61578-61579,61583-61584,61588-61589,61592,61594,61598-61601,61603-61604,61607-61612,61617,61619-61620,61624,61626,61628-61630,61635-61638,61640-61643,61645,61648,61653-61655,61659-61662,61664,61666,61668-61671,61673,61675,61679-61680,61682,61685-61686,61689-61695,61697-61699,61701-61703,61706,61710,61713,61717,61723,61726-61730,61736,61738,61740,61742,61745-61752,61754-61760,61762-61764,61768,61770-61772,61774-61775,61784-61787,61789-61792,61794-61795,61797-61806,61808-61809,61811-61812,61814-61819,61824,61826-61833,61835-61840,61843-61845,61848,61850,61854-61862,61865-61866,61868,61872-61873,61876-61877,61883-61888,61890-61891,61893-61899,61901-61903,61905-61912,61914,61917,61920-61921,61927,61930,61932-61934,61939,61941-61942,61944-61951,61955,61960-61963,61980,61982-61983,61991,61994-61996,62001-62003,62008-62010,62016-62017,62022,62024,62027,62031-62034,62041,62045-62046,62055-62058,62060-62066,62068-62074,62076-62079,62081-62083,62086-62089,62092-62094,62098,62101,62104,62106-62109,62115-62122,62124-62125,62127-62128,62130,62132,62134-62137,62139-62142,62144,62146-62148,62150-62152,62155-62161 via svnmerge from Neal Norwitz <nnorwitz@gmail.com> parents: 46161 diff changeset	734 raise
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	735
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	736 def join(self, timeout=None):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	737 if not self._initialized:
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	738 raise RuntimeError("Thread.__init__() not called")
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	739 if not self._started.is_set():
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	740 raise RuntimeError("cannot join thread before it is started")
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	741 if self is current_thread():
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	742 raise RuntimeError("cannot join current thread")
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	743
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	744 self._block.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	745 try:
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	746 if timeout is None:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	747 while not self._stopped:
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	748 self._block.wait()
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	749 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	750 deadline = _time() + timeout
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	751 while not self._stopped:
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	752 delay = deadline - _time()
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	753 if delay <= 0:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	754 break
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	755 self._block.wait(delay)
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	756 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	757 self._block.release()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	758
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	759 @property
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	760 def name(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	761 assert self._initialized, "Thread.__init__() not called"
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	762 return self._name
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	763
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	764 @name.setter
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	765 def name(self, name):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	766 assert self._initialized, "Thread.__init__() not called"
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	767 self._name = str(name)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	768
48743 76620010d782 Merged revisions 65818 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48516 diff changeset	769 @property
76620010d782 Merged revisions 65818 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48516 diff changeset	770 def ident(self):
47555 7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	771 assert self._initialized, "Thread.__init__() not called"
7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	772 return self._ident
7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from Georg Brandl <georg@python.org> parents: 47266 diff changeset	773
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	774 def is_alive(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	775 assert self._initialized, "Thread.__init__() not called"
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	776 return self._started.is_set() and not self._stopped
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	777
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	778 isAlive = is_alive
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	779
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	780 @property
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	781 def daemon(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	782 assert self._initialized, "Thread.__init__() not called"
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	783 return self._daemonic
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	784
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	785 @daemon.setter
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	786 def daemon(self, daemonic):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	787 if not self._initialized:
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	788 raise RuntimeError("Thread.__init__() not called")
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	789 if self._started.is_set():
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	790 raise RuntimeError("cannot set daemon status of active thread");
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	791 self._daemonic = daemonic
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	792
48748 d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	793 def isDaemon(self):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	794 return self.daemon
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	795
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	796 def setDaemon(self, daemonic):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	797 self.daemon = daemonic
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	798
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	799 def getName(self):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	800 return self.name
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	801
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	802 def setName(self, name):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	803 self.name = name
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	804
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	805 # The timer class was contributed by Itamar Shtull-Trauring
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	806
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	807 class Timer(Thread):
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	808 """Call a function after a specified number of seconds:
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	809
83029 2698920eadcd Issue #17435: Don't use mutable default values in Timer. R David Murray <rdmurray@bitdance.com> parents: 76597 diff changeset	810 t = Timer(30.0, f, args=None, kwargs=None)
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	811 t.start()
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	812 t.cancel() # stop the timer's action if it's still waiting
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	813 """
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	814
83029 2698920eadcd Issue #17435: Don't use mutable default values in Timer. R David Murray <rdmurray@bitdance.com> parents: 76597 diff changeset	815 def __init__(self, interval, function, args=None, kwargs=None):
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	816 Thread.__init__(self)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	817 self.interval = interval
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	818 self.function = function
83029 2698920eadcd Issue #17435: Don't use mutable default values in Timer. R David Murray <rdmurray@bitdance.com> parents: 76597 diff changeset	819 self.args = args if args is not None else []
2698920eadcd Issue #17435: Don't use mutable default values in Timer. R David Murray <rdmurray@bitdance.com> parents: 76597 diff changeset	820 self.kwargs = kwargs if kwargs is not None else {}
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	821 self.finished = Event()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	822
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	823 def cancel(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	824 """Stop the timer if it hasn't finished yet"""
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	825 self.finished.set()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	826
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	827 def run(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	828 self.finished.wait(self.interval)
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	829 if not self.finished.is_set():
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	830 self.function(self.args, *self.kwargs)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	831 self.finished.set()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	832
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	833 # Special thread class to represent the main thread
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	834 # This is garbage collected through an exit handler
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	835
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	836 class _MainThread(Thread):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	837
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	838 def __init__(self):
68155 f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	839 Thread.__init__(self, name="MainThread", daemon=False)
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	840 self._started.set()
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	841 self._set_ident()
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	842 with _active_limbo_lock:
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	843 _active[self._ident] = self
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	844
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	845 def _exitfunc(self):
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	846 self._stop()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	847 t = _pickSomeNonDaemonThread()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	848 while t:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	849 t.join()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	850 t = _pickSomeNonDaemonThread()
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	851 self._delete()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	852
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	853 def _pickSomeNonDaemonThread():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	854 for t in enumerate():
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	855 if not t.daemon and t.is_alive():
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	856 return t
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	857 return None
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	858
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	859
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	860 # Dummy thread class to represent threads not started here.
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	861 # These aren't garbage collected when they die, nor can they be waited for.
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	862 # If they invoke anything in threading.py that calls current_thread(), they
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	863 # leave an entry in the _active dict forever after.
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	864 # Their purpose is to return something from current_thread().
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	865 # They are marked as daemon threads so we won't wait for them
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	866 # when we exit (conform previous semantics).
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	867
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	868 class _DummyThread(Thread):
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	869
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	870 def __init__(self):
68155 f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	871 Thread.__init__(self, name=_newname("Dummy-%d"), daemon=True)
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	872
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	873 # Thread._block consumes an OS-level locking primitive, which
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	874 # can never be used by a _DummyThread. Since a _DummyThread
35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	875 # instance is immortal, that's bad, so release this resource.
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	876 del self._block
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	877
45549 8dd30fe11a4b Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61083,61085,61092-61103 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45495 diff changeset	878 self._started.set()
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	879 self._set_ident()
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	880 with _active_limbo_lock:
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	881 _active[self._ident] = self
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	882
76421 41c64c700e1e Issue #14308: Fix an exception when a "dummy" thread is in the threading module's active list after a fork(). Antoine Pitrou <solipsis@pitrou.net> parents: 74749 diff changeset	883 def _stop(self):
41c64c700e1e Issue #14308: Fix an exception when a "dummy" thread is in the threading module's active list after a fork(). Antoine Pitrou <solipsis@pitrou.net> parents: 74749 diff changeset	884 pass
41c64c700e1e Issue #14308: Fix an exception when a "dummy" thread is in the threading module's active list after a fork(). Antoine Pitrou <solipsis@pitrou.net> parents: 74749 diff changeset	885
21981 4e9cc26e03fd SF #515023. Make _DummyThread.join() signature match base class (Thread) Neal Norwitz <nnorwitz@gmail.com> parents: 21589 diff changeset	886 def join(self, timeout=None):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	887 assert False, "cannot join a dummy thread"
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	888
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	889
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	890 # Global API functions
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	891
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	892 def current_thread():
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	893 try:
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	894 return _active[get_ident()]
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	895 except KeyError:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	896 return _DummyThread()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	897
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	898 currentThread = current_thread
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	899
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	900 def active_count():
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	901 with _active_limbo_lock:
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	902 return len(_active) + len(_limbo)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	903
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	904 activeCount = active_count
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	905
57121 4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	906 def _enumerate():
4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	907 # Same as enumerate(), but without the lock. Internal use only.
4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	908 return list(_active.values()) + list(_limbo.values())
4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	909
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	910 def enumerate():
52892 792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	911 with _active_limbo_lock:
792bb885029f Merged revisions 70712,70714,70764-70765,70769-70771,70773,70776-70777,70788-70789,70824,70828,70832,70836,70842,70851,70855,70857,70866-70872,70883,70885,70893-70894,70896-70897,70903,70905-70907,70915,70927,70933,70951,70960,70962-70964,70998,71001,71006,71008,71010-71011,71019,71037,71056,71094,71101-71103,71106,71119,71123,71149-71150,71203,71212,71214-71217,71221,71240 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49058 diff changeset	912 return list(_active.values()) + list(_limbo.values())
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	913
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	914 from _thread import stack_size
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	915
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	916 # Create the main thread object,
67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	917 # and make it available for the interpreter
67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	918 # (Py_Main) as threading._shutdown.
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	919
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	920 _shutdown = _MainThread()._exitfunc
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	921
32673 97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	922 # get thread-local implementation, either from the thread
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	923 # module, or from the python fallback
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	924
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	925 try:
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	926 from _thread import _local as local
32673 97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	927 except ImportError:
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	928 from _threading_local import local
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	929
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	930
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	931 def _after_fork():
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	932 # This function is called by Python/ceval.c:PyEval_ReInitThreads which
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	933 # is called from PyOS_AfterFork. Here we cleanup threading module state
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	934 # that should not exist after a fork.
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	935
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	936 # Reset _active_limbo_lock, in case we forked while the lock was held
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	937 # by another (non-forked) thread. http://bugs.python.org/issue874900
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	938 global _active_limbo_lock
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	939 _active_limbo_lock = _allocate_lock()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	940
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	941 # fork() only copied the current thread; clear references to others.
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	942 new_active = {}
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	943 current = current_thread()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	944 with _active_limbo_lock:
49058 179f8d89ad19 Issue #874900: fix behaviour of threading module after a fork. Antoine Pitrou <solipsis@pitrou.net> parents: 48941 diff changeset	945 for thread in _active.values():
74037 de962ec0faaa Issue #11870: threading: Properly reinitialize threads internal locks and Charles-François Natali <neologix@free.fr> parents: 72985 diff changeset	946 # Any lock/condition variable may be currently locked or in an
de962ec0faaa Issue #11870: threading: Properly reinitialize threads internal locks and Charles-François Natali <neologix@free.fr> parents: 72985 diff changeset	947 # invalid state, so we reinitialize them.
de962ec0faaa Issue #11870: threading: Properly reinitialize threads internal locks and Charles-François Natali <neologix@free.fr> parents: 72985 diff changeset	948 thread._reset_internal_locks()
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	949 if thread is current:
49058 179f8d89ad19 Issue #874900: fix behaviour of threading module after a fork. Antoine Pitrou <solipsis@pitrou.net> parents: 48941 diff changeset	950 # There is only one active thread. We reset the ident to
179f8d89ad19 Issue #874900: fix behaviour of threading module after a fork. Antoine Pitrou <solipsis@pitrou.net> parents: 48941 diff changeset	951 # its new value since it can have changed.
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	952 ident = get_ident()
49058 179f8d89ad19 Issue #874900: fix behaviour of threading module after a fork. Antoine Pitrou <solipsis@pitrou.net> parents: 48941 diff changeset	953 thread._ident = ident
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	954 new_active[ident] = thread
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	955 else:
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	956 # All the others are already stopped.
74037 de962ec0faaa Issue #11870: threading: Properly reinitialize threads internal locks and Charles-François Natali <neologix@free.fr> parents: 72985 diff changeset	957 thread._stop()
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	958
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	959 _limbo.clear()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	960 _active.clear()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	961 _active.update(new_active)
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	962 assert len(_active) == 1

Mercurial > cpython-lru_cache-weakref

annotate Lib/threading.py @ 83191:0437c19cdad0