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

annotate Lib/threading.py @ 73798:6cde416ef03b

Credit Per Øyvind Karlsen for the initial implementation of the lzma module (issue #6715).

author	Nadeem Vawda <nadeem.vawda@gmail.com>
date	Thu, 01 Dec 2011 01:18:27 +0200
parents	bfbe144986d7
children	cec0d77d01c4

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
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	6 from time import time as _time, sleep as _sleep
30862 d45f8981fdea Add traceback.format_exc(). Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 29725 diff changeset	7 from traceback import format_exc as _format_exc
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: 30862 diff changeset	8 from collections import deque
71361 2bedea96de60 Issue #12573: Add resource checks for dangling Thread and Process objects. Antoine Pitrou <solipsis@pitrou.net> parents: 68257 diff changeset	9 from _weakrefset import 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	10
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	11 # 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	12 # 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	13 # 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	14 # 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	15 # 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	16 # 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	17 # 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	18 # 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	19 # 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	20
67533 2244ac6c2a9b Add entry for Barrier objects. Raymond Hettinger <python@rcn.com> parents: 67354 diff changeset	21 __all__ = ['active_count', 'Condition', 'current_thread', 'enumerate', 'Event',
2244ac6c2a9b Add entry for Barrier objects. Raymond Hettinger <python@rcn.com> parents: 67354 diff changeset	22 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', 'Thread', 'Barrier',
71701 bbeda42ea6a8 add ThreadError to threading.__all__ (closes #12679) Benjamin Peterson <benjamin@python.org> parents: 71560 diff changeset	23 '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	24
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	25 # 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	26 _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	27 _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	28 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	29 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	30 try:
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	31 _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	32 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	33 _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	34 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	35 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	36
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	37
29725 7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	38 # Debug support (adapted from ihooks.py).
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	39
29724 3b7b4fd5f7ca Resolved minor XXX question in the obvious way. Tim Peters <tim.peters@gmail.com> parents: 29686 diff changeset	40 _VERBOSE = 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	41
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	42 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	43
29725 7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	44 class _Verbose(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	45
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	46 def __init__(self, verbose=None):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	47 if verbose 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	48 verbose = _VERBOSE
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	49 self._verbose = verbose
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	50
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	51 def _note(self, format, *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	52 if self._verbose:
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	53 format = format % args
66990 c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	54 # Issue #4188: calling current_thread() can incur an infinite
c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	55 # recursion if it has to create a DummyThread on the fly.
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	56 ident = get_ident()
66990 c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	57 try:
c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	58 name = _active[ident].name
c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	59 except KeyError:
c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	60 name = "<OS thread %d>" % ident
c70aa011c059 Merged revisions 87341 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 60379 diff changeset	61 format = "%s: %s\n" % (name, format)
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	62 _sys.stderr.write(format)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	63
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	64 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	65 # Disable this when using "python -O"
29725 7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	66 class _Verbose(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	67 def __init__(self, verbose=None):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	68 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	69 def _note(self, *args):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	70 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	71
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	72 # 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	73
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	74 _profile_hook = None
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	75 _trace_hook = None
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	76
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	77 def setprofile(func):
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	78 global _profile_hook
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	79 _profile_hook = func
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	80
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	81 def settrace(func):
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	82 global _trace_hook
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	83 _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	84
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	85 # 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	86
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	87 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	88
57172 6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	89 def RLock(verbose=None, args, *kwargs):
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	90 if verbose is None:
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	91 verbose = _VERBOSE
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	92 if (__debug__ and verbose) or _CRLock is None:
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	93 return _PyRLock(verbose, args, *kwargs)
6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	94 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	95
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	96 class _RLock(_Verbose):
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	97
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	98 def __init__(self, verbose=None):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	99 _Verbose.__init__(self, verbose)
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._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	101 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	102 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	103
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	104 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	105 owner = self._owner
57160 fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	106 try:
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	107 owner = _active[owner].name
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	108 except KeyError:
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	109 pass
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	110 return "<%s owner=%r count=%d>" % (
fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	111 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	112
60598 01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	113 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	114 me = get_ident()
57160 fe33562d1f95 Merged revisions 76138,76173 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 57121 diff changeset	115 if self._owner == me:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	116 self._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	117 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	118 self._note("%s.acquire(%s): recursive success", self, blocking)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	119 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	120 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	121 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	122 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	123 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	124 if __debug__:
34512 cb7896d77de5 Fixed typo in verbose output. Brett Cannon <bcannon@gmail.com> parents: 34363 diff changeset	125 self._note("%s.acquire(%s): initial success", self, blocking)
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 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	127 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	128 self._note("%s.acquire(%s): failure", self, blocking)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	129 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	130
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	131 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	132
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 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	134 if self._owner != get_ident():
56894 b085fd0611de Merged revisions 75797 via svnmerge from Georg Brandl <georg@python.org> parents: 56002 diff changeset	135 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	136 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	137 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	138 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	139 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	140 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	141 self._note("%s.release(): final release", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	142 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	143 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	144 self._note("%s.release(): non-final release", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	145
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	146 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	147 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	148
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	149 # 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	150
41717 9ad84070b22d Merged revisions 55328-55341 via svnmerge from Guido van Rossum <guido@python.org> parents: 40809 diff changeset	151 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	152 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	153 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	154 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	155 self._note("%s._acquire_restore()", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	156
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	157 def _release_save(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	158 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	159 self._note("%s._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	160 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	161 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	162 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	163 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	164 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	165 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	166 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	167 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	168
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	169 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	170 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	171
57172 6d91aaadddd0 Issue #3001: Add a C implementation of recursive locks which is used by Antoine Pitrou <solipsis@pitrou.net> parents: 57160 diff changeset	172 _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	173
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	174
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	175 class Condition(_Verbose):
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	176
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	177 def __init__(self, lock=None, verbose=None):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	178 _Verbose.__init__(self, verbose)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	179 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	180 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	181 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	182 # 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	183 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	184 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	185 # 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	186 # 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	187 # 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	188 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	189 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	190 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	191 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	192 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	193 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	194 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	195 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	196 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	197 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	198 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	199 pass
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	200 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	201
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 36926 diff changeset	202 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	203 return self._lock.__enter__()
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	204
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 36926 diff changeset	205 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	206 return self._lock.__exit__(*args)
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	207
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	208 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	209 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	210
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	211 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	212 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	213
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	214 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	215 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	216
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	217 def _is_owned(self):
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	218 # 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	219 # 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	220 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	221 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	222 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	223 else:
22830 a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool. Tim Peters <tim.peters@gmail.com> parents: 21981 diff changeset	224 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	225
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	226 def wait(self, timeout=None):
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	227 if not self._is_owned():
56894 b085fd0611de Merged revisions 75797 via svnmerge from Georg Brandl <georg@python.org> parents: 56002 diff changeset	228 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	229 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	230 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	231 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	232 saved_state = self._release_save()
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	233 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	234 if timeout is None:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	235 waiter.acquire()
65675 6dff581d30f3 #10218: return timeout status from Condition.wait, mirroring other primitives' behavior. Georg Brandl <georg@python.org> parents: 63166 diff changeset	236 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	237 if __debug__:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	238 self._note("%s.wait(): got it", 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	239 else:
60598 01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	240 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	241 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	242 else:
01d1fd775d16 Issue #7316: the acquire() method of lock objects in the :mod:`threading` Antoine Pitrou <solipsis@pitrou.net> parents: 60377 diff changeset	243 gotit = waiter.acquire(False)
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	244 if not gotit:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	245 if __debug__:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	246 self._note("%s.wait(%s): timed out", self, timeout)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	247 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	248 self._waiters.remove(waiter)
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	249 except ValueError:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	250 pass
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	251 else:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	252 if __debug__:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	253 self._note("%s.wait(%s): got it", self, timeout)
65675 6dff581d30f3 #10218: return timeout status from Condition.wait, mirroring other primitives' behavior. Georg Brandl <georg@python.org> parents: 63166 diff changeset	254 return gotit
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	255 finally:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	256 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	257
66229 483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	258 def wait_for(self, predicate, timeout=None):
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	259 endtime = None
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	260 waittime = timeout
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	261 result = predicate()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	262 while not result:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	263 if waittime is not None:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	264 if endtime is None:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	265 endtime = _time() + waittime
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	266 else:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	267 waittime = endtime - _time()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	268 if waittime <= 0:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	269 if __debug__:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	270 self._note("%s.wait_for(%r, %r): Timed out.",
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	271 self, predicate, timeout)
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	272 break
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	273 if __debug__:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	274 self._note("%s.wait_for(%r, %r): Waiting with timeout=%s.",
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	275 self, predicate, timeout, waittime)
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	276 self.wait(waittime)
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	277 result = predicate()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	278 else:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	279 if __debug__:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	280 self._note("%s.wait_for(%r, %r): Success.",
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	281 self, predicate, timeout)
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	282 return result
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	283
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	284 def notify(self, n=1):
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	285 if not self._is_owned():
56894 b085fd0611de Merged revisions 75797 via svnmerge from Georg Brandl <georg@python.org> parents: 56002 diff changeset	286 raise RuntimeError("cannot notify on 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	287 __waiters = 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	288 waiters = __waiters[:n]
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	289 if not waiters:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	290 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	291 self._note("%s.notify(): no waiters", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	292 return
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	293 self._note("%s.notify(): notifying %d waiter%s", self, n,
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	294 n!=1 and "s" or "")
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	295 for waiter in waiters:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	296 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	297 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	298 __waiters.remove(waiter)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	299 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	300 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	301
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	302 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	303 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	304
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	305 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	306
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	307
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	308 class Semaphore(_Verbose):
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	309
11876 c27d3e8c45c4 Fix a typo in a comment Andrew M. Kuchling <amk@amk.ca> parents: 11707 diff changeset	310 # 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	311
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	312 def __init__(self, value=1, verbose=None):
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	313 if value < 0:
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	314 raise ValueError("semaphore initial value must be >= 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	315 _Verbose.__init__(self, verbose)
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	316 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	317 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	318
60665 bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	319 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	320 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	321 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	322 rc = False
60665 bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	323 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	324 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	325 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	326 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	327 break
19377 6386f01f2401 add debug calls to self._note for the Semaphore class. This closes bug Skip Montanaro <skip@pobox.com> parents: 19210 diff changeset	328 if __debug__:
6386f01f2401 add debug calls to self._note for the Semaphore class. This closes bug Skip Montanaro <skip@pobox.com> parents: 19210 diff changeset	329 self._note("%s.acquire(%s): blocked waiting, value=%s",
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	330 self, blocking, self._value)
60665 bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	331 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	332 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	333 endtime = _time() + timeout
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	334 else:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	335 timeout = endtime - _time()
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	336 if timeout <= 0:
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	337 break
bac99229da2d Issue #850728: Add a timeout parameter to the `acquire()` method of Antoine Pitrou <solipsis@pitrou.net> parents: 60598 diff changeset	338 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	339 else:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	340 self._value = self._value - 1
19377 6386f01f2401 add debug calls to self._note for the Semaphore class. This closes bug Skip Montanaro <skip@pobox.com> parents: 19210 diff changeset	341 if __debug__:
19379 2a083e050617 of course I muffed it separating the notes code from the initial_value Skip Montanaro <skip@pobox.com> parents: 19377 diff changeset	342 self._note("%s.acquire: success, value=%s",
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	343 self, self._value)
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	344 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	345 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	346 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	347
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	348 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	349
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	350 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	351 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	352 self._value = self._value + 1
19377 6386f01f2401 add debug calls to self._note for the Semaphore class. This closes bug Skip Montanaro <skip@pobox.com> parents: 19210 diff changeset	353 if __debug__:
19379 2a083e050617 of course I muffed it separating the notes code from the initial_value Skip Montanaro <skip@pobox.com> parents: 19377 diff changeset	354 self._note("%s.release: success, value=%s",
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	355 self, self._value)
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	356 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	357 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	358
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	359 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	360 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	361
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	362
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	363 class BoundedSemaphore(Semaphore):
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	364 """Semaphore that checks that # releases is <= # acquires"""
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	365 def __init__(self, value=1, verbose=None):
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	366 Semaphore.__init__(self, value, verbose)
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	367 self._initial_value = value
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	368
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	369 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	370 if self._value >= self._initial_value:
43020 907a45df1295 Raise statement normalization in Lib/. Collin Winter <collinw@gmail.com> parents: 42679 diff changeset	371 raise ValueError("Semaphore released too many times")
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	372 return Semaphore.release(self)
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	373
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	374
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	375 class Event(_Verbose):
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	376
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	377 # 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	378
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	379 def __init__(self, verbose=None):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	380 _Verbose.__init__(self, verbose)
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	381 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	382 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	383
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	384 def _reset_internal_locks(self):
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	385 # 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	386 self._cond.__init__()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	387
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	388 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	389 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	390
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	391 isSet = is_set
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	392
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	393 def set(self):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	394 self._cond.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	395 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	396 self._flag = True
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	397 self._cond.notify_all()
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	398 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	399 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	400
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	401 def clear(self):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	402 self._cond.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	403 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	404 self._flag = False
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	405 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	406 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	407
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	408 def wait(self, timeout=None):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	409 self._cond.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	410 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	411 if not self._flag:
e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	412 self._cond.wait(timeout)
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	413 return self._flag
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	414 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	415 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	416
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	417
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	418 # 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	419 # the CyclicBarrier class from Java. See
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	420 # http://sourceware.org/pthreads-win32/manual/pthread_barrier_init.html and
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	421 # 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	422 # CyclicBarrier.html
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	423 # for information.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	424 # We maintain two main states, 'filling' and 'draining' enabling the barrier
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	425 # 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	426 # 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	427 # similar to 'draining' except that threads leave with a BrokenBarrierError,
72985 e19ccbbe70dd Remove duplication. Ezio Melotti <ezio.melotti@gmail.com> parents: 71361 diff changeset	428 # and a 'broken' state in which all threads get the exception.
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	429 class Barrier(_Verbose):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	430 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	431 Barrier. Useful for synchronizing a fixed number of threads
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	432 at known synchronization points. Threads block on 'wait()' and are
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	433 simultaneously once they have all made that call.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	434 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	435 def __init__(self, parties, action=None, timeout=None, verbose=None):
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 Create a barrier, initialised to 'parties' threads.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	438 'action' is a callable which, when supplied, will be called
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	439 by one of the threads after they have all entered the
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	440 barrier and just prior to releasing them all.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	441 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	442 all subsequent 'wait()' calls.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	443 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	444 _Verbose.__init__(self, verbose)
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	445 self._cond = Condition(Lock())
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	446 self._action = action
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	447 self._timeout = timeout
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	448 self._parties = parties
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	449 self._state = 0 #0 filling, 1, draining, -1 resetting, -2 broken
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	450 self._count = 0
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 def wait(self, timeout=None):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	453 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	454 Wait for the barrier. When the specified number of threads have
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	455 started waiting, they are all simultaneously awoken. If an 'action'
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	456 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	457 that callback prior to returning.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	458 Returns an individual index number from 0 to 'parties-1'.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	459 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	460 if timeout is None:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	461 timeout = self._timeout
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	462 with self._cond:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	463 self._enter() # Block while the barrier drains.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	464 index = self._count
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	465 self._count += 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	466 try:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	467 if index + 1 == self._parties:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	468 # We release the barrier
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	469 self._release()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	470 else:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	471 # We wait until someone releases us
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	472 self._wait(timeout)
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	473 return index
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	474 finally:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	475 self._count -= 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	476 # Wake up any threads waiting for barrier to drain.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	477 self._exit()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	478
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	479 # 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	480 # if it is broken.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	481 def _enter(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	482 while self._state in (-1, 1):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	483 # It is draining or resetting, wait until done
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	484 self._cond.wait()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	485 #see if the barrier is in a broken state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	486 if self._state < 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	487 raise BrokenBarrierError
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	488 assert self._state == 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	489
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	490 # Optionally run the 'action' and release the threads waiting
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	491 # in the barrier.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	492 def _release(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	493 try:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	494 if self._action:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	495 self._action()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	496 # enter draining state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	497 self._state = 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	498 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	499 except:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	500 #an exception during the _action handler. Break and reraise
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	501 self._break()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	502 raise
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 # Wait in the barrier until we are relased. Raise an exception
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	505 # if the barrier is reset or broken.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	506 def _wait(self, timeout):
66229 483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	507 if not self._cond.wait_for(lambda : self._state != 0, timeout):
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	508 #timed out. Break the barrier
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	509 self._break()
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	510 raise BrokenBarrierError
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	511 if self._state < 0:
483bbebc57bf Issue 10260 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65677 diff changeset	512 raise BrokenBarrierError
65677 5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	513 assert self._state == 1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	514
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	515 # 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	516 # waiting for the barrier to drain.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	517 def _exit(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	518 if self._count == 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	519 if self._state in (-1, 1):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	520 #resetting or draining
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	521 self._state = 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	522 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	523
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	524 def reset(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	525 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	526 Reset the barrier to the initial state.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	527 Any threads currently waiting will get the BrokenBarrier exception
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	528 raised.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	529 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	530 with self._cond:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	531 if self._count > 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	532 if self._state == 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	533 #reset the barrier, waking up threads
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	534 self._state = -1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	535 elif self._state == -2:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	536 #was broken, set it to reset state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	537 #which clears when the last thread exits
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	538 self._state = -1
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	539 else:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	540 self._state = 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	541 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	542
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	543 def abort(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	544 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	545 Place the barrier into a 'broken' state.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	546 Useful in case of error. Any currently waiting threads and
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	547 threads attempting to 'wait()' will have BrokenBarrierError
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	548 raised.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	549 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	550 with self._cond:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	551 self._break()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	552
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	553 def _break(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	554 # An internal error was detected. The barrier is set to
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	555 # a broken state all parties awakened.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	556 self._state = -2
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	557 self._cond.notify_all()
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	558
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	559 @property
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	560 def parties(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	561 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	562 Return the number of threads required to trip the barrier.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	563 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	564 return self._parties
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	565
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	566 @property
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	567 def n_waiting(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	568 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	569 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	570 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	571 # 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	572 # anyway. It returns the correct value in the steady state.
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	573 if self._state == 0:
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	574 return self._count
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	575 return 0
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	576
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	577 @property
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	578 def broken(self):
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	579 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	580 Return True if the barrier is in a broken state
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	581 """
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	582 return self._state == -2
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	583
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	584 #exception raised by the Barrier class
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	585 class BrokenBarrierError(RuntimeError): pass
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	586
5a882f789ec1 issue 8777 Kristján Valur Jónsson <kristjan@ccpgames.com> parents: 65675 diff changeset	587
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	588 # 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	589 _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	590 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	591 global _counter
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	592 _counter = _counter + 1
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	593 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	594
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	595 # 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	596 _active_limbo_lock = _allocate_lock()
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	597 _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	598 _limbo = {}
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	599
71361 2bedea96de60 Issue #12573: Add resource checks for dangling Thread and Process objects. Antoine Pitrou <solipsis@pitrou.net> parents: 68257 diff changeset	600 # 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	601 _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	602
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	603 # 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	604
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	605 class Thread(_Verbose):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	606
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	607 __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	608 # 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	609 # 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	610 # 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	611 # 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	612 __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	613 # 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	614 # 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	615 #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	616
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	617 def __init__(self, group=None, target=None, name=None,
68155 f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	618 args=(), kwargs=None, verbose=None, *, daemon=None):
8474 049aa3a8a172 Get rid of tabnanny's last complaints. Guido van Rossum <guido@python.org> parents: 8454 diff changeset	619 assert group is None, "group argument must be None for now"
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	620 _Verbose.__init__(self, verbose)
35236 d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	621 if kwargs is None:
d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	622 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	623 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	624 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	625 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	626 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	627 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	628 self._daemonic = daemon
f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	629 else:
f71acc4b2341 Issue #6064: Add a `daemon` keyword argument to the threading.Thread Antoine Pitrou <solipsis@pitrou.net> parents: 67629 diff changeset	630 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	631 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	632 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	633 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	634 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	635 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	636 # 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	637 # 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	638 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	639 _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	640
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	641 def _reset_internal_locks(self):
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	642 # 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	643 # 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	644 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	645 self._block.__init__()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	646 self._started._reset_internal_locks()
a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	647
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	648 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	649 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	650 status = "initial"
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	651 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	652 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	653 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	654 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	655 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	656 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	657 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	658 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	659 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	660
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	661 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	662 if not self._initialized:
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	663 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	664
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	665 if self._started.is_set():
60379 c10024abd118 Merged revisions 79819 via svnmerge from Senthil Kumaran <orsenthil@gmail.com> parents: 59203 diff changeset	666 raise RuntimeError("threads can only be started once")
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	667 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	668 self._note("%s.start(): starting thread", self)
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	669 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	670 _limbo[self] = self
59203 9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	671 try:
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	672 _start_new_thread(self._bootstrap, ())
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	673 except Exception:
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	674 with _active_limbo_lock:
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	675 del _limbo[self]
9e8113e76adb Merged revisions 78519 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 57160 diff changeset	676 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	677 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	678
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	679 def run(self):
45495 48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	680 try:
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	681 if self._target:
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	682 self._target(self._args, *self._kwargs)
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	683 finally:
48488fa50729 Merged revisions 61003-61033 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44943 diff changeset	684 # 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	685 # 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	686 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	687
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	688 def _bootstrap(self):
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	689 # 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	690 # exceptions during interpreter cleanup. Those typically
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	691 # 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	692 # 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	693 # 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	694 # _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	695 # 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	696 # 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	697 # 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	698 # _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	699 # 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	700 # 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	701 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	702 self._bootstrap_inner()
42678 af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	703 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	704 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	705 return
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	706 raise
af6a7190cabc Merged revisions 57152-57220 via svnmerge from Guido van Rossum <guido@python.org> parents: 42466 diff changeset	707
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	708 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	709 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	710
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	711 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	712 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	713 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	714 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	715 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	716 _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	717 del _limbo[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	718 if __debug__:
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	719 self._note("%s._bootstrap(): thread started", self)
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	720
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	721 if _trace_hook:
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	722 self._note("%s._bootstrap(): registering trace hook", self)
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	723 _sys.settrace(_trace_hook)
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	724 if _profile_hook:
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	725 self._note("%s._bootstrap(): registering profile hook", self)
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	726 _sys.setprofile(_profile_hook)
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	727
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	728 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	729 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	730 except SystemExit:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	731 if __debug__:
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	732 self._note("%s._bootstrap(): raised SystemExit", 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	733 except:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	734 if __debug__:
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	735 self._note("%s._bootstrap(): unhandled exception", self)
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	736 # 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	737 # 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	738 # _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	739 # self.
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	740 if _sys:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	741 _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	742 (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	743 else:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	744 # 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	745 # 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	746 # 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	747 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	748 try:
40775 4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 40582 diff changeset	749 print((
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	750 "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	751 " (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	752 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	753 "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	754 while exc_tb:
40775 4cdf21a0dbbc Fix most trivially-findable print statements. Guido van Rossum <guido@python.org> parents: 40582 diff changeset	755 print((
32475 796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	756 ' 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	757 (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	758 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	759 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	760 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	761 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	762 # 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	763 # 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	764 finally:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	765 del exc_type, exc_value, exc_tb
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	766 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	767 if __debug__:
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	768 self._note("%s._bootstrap(): normal return", self)
46161 848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	769 finally:
848160d10780 Merged revisions 61981,61984-61987,61992-61993,61997-62000 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45549 diff changeset	770 # 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	771 # 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	772 # 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	773 # 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	774 #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	775 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	776 finally:
44885 fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	777 with _active_limbo_lock:
fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	778 self._stop()
fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	779 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	780 # 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	781 # 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	782 del _active[get_ident()]
44885 fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	783 except:
fefaa0e66fdd Merged revisions 60176-60209 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 43020 diff changeset	784 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	785
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	786 def _stop(self):
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	787 self._block.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	788 self._stopped = True
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	789 self._block.notify_all()
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	790 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	791
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	792 def _delete(self):
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	793 "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	794
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	795 # 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	796 #
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	797 # 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	798 # 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	799 # 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	800 # 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	801 # 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	802 # 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	803 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	804 # 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	805 # 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	806 # 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	807 # 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	808 # '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	809 # 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	810 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	811 # 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	812 # _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	813 # 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	814 # 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	815
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	816 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	817 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	818 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	819 # 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	820 # 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	821 # 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	822 # 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	823 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	824 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	825 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	826
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	827 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	828 if not self._initialized:
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	829 raise RuntimeError("Thread.__init__() not called")
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	830 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	831 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	832 if self is current_thread():
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	833 raise RuntimeError("cannot join current thread")
229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	834
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	835 if __debug__:
42679 e71c3223810f Get rid of all __private variables and methods in the threading module. Guido van Rossum <guido@python.org> parents: 42678 diff changeset	836 if not 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	837 self._note("%s.join(): waiting until thread stops", self)
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	838
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	839 self._block.acquire()
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	840 try:
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	841 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	842 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	843 self._block.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	844 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	845 self._note("%s.join(): thread stopped", self)
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	846 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	847 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	848 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	849 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	850 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	851 if __debug__:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	852 self._note("%s.join(): timed out", self)
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	853 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	854 self._block.wait(delay)
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	855 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	856 if __debug__:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	857 self._note("%s.join(): thread stopped", self)
44943 6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	858 finally:
6547be11f443 Merged revisions 60245-60277 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44885 diff changeset	859 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	860
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	861 @property
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	862 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	863 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	864 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	865
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	866 @name.setter
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	867 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	868 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	869 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	870
48743 76620010d782 Merged revisions 65818 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48516 diff changeset	871 @property
76620010d782 Merged revisions 65818 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48516 diff changeset	872 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	873 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	874 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	875
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	876 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	877 assert self._initialized, "Thread.__init__() not called"
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	878 return self._started.is_set() and not self._stopped
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	879
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	880 isAlive = is_alive
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	881
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	882 @property
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	883 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	884 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	885 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	886
48745 2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	887 @daemon.setter
2614d501de9a change is_daemon, set_daemon, get_name, and set_name to properties Benjamin Peterson <benjamin@python.org> parents: 48743 diff changeset	888 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	889 if not self._initialized:
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	890 raise RuntimeError("Thread.__init__() not called")
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	891 if self._started.is_set():
42084 229c28cb9afb Merged revisions 55817-55961 via svnmerge from Guido van Rossum <guido@python.org> parents: 41717 diff changeset	892 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	893 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	894
48748 d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	895 def isDaemon(self):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	896 return self.daemon
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	897
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	898 def setDaemon(self, daemonic):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	899 self.daemon = daemonic
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	900
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	901 def getName(self):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	902 return self.name
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	903
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	904 def setName(self, name):
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	905 self.name = name
d6537a3e1b73 Merged revisions 65826 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 48745 diff changeset	906
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	907 # 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	908
71560 7f606223578a Remove indirection in threading (issue #10968). Éric Araujo <merwok@netwok.org> parents: 71362 diff changeset	909 class Timer(Thread):
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	910 """Call a function after a specified number of seconds:
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	911
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	912 t = Timer(30.0, f, args=[], kwargs={})
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	913 t.start()
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	914 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	915 """
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	916
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	917 def __init__(self, interval, function, args=[], kwargs={}):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	918 Thread.__init__(self)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	919 self.interval = interval
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	920 self.function = function
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	921 self.args = args
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	922 self.kwargs = kwargs
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	923 self.finished = Event()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	924
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	925 def cancel(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	926 """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	927 self.finished.set()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	928
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	929 def run(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	930 self.finished.wait(self.interval)
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	931 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	932 self.function(self.args, *self.kwargs)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	933 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	934
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	935 # 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	936 # 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	937
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	938 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	939
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	940 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	941 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	942 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	943 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	944 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	945 _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	946
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	947 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	948 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	949 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	950 if t:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	951 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	952 self._note("%s: waiting for other threads", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	953 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	954 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	955 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	956 if __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	957 self._note("%s: exiting", 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	958 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	959
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	960 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	961 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	962 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	963 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	964 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	965
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	966
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	967 # 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	968 # 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	969 # 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	970 # 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	971 # 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	972 # 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	973 # 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	974
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	975 class _DummyThread(Thread):
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	976
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	977 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	978 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	979
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	980 # 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	981 # 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	982 # 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	983 del self._block
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	984
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	985 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	986 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	987 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	988 _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	989
21981 4e9cc26e03fd SF #515023. Make _DummyThread.join() signature match base class (Thread) Neal Norwitz <nnorwitz@gmail.com> parents: 21589 diff changeset	990 def join(self, timeout=None):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	991 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	992
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	993
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	994 # 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	995
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	996 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	997 try:
70530 5548197d1f22 Close #12028: Make threading._get_ident() public, rename it to Victor Stinner <victor.stinner@haypocalc.com> parents: 69710 diff changeset	998 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	999 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	1000 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	1001
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	1002 currentThread = current_thread
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	1003
47615 045f83a1b864 Merged revisions 64125 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 47555 diff changeset	1004 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	1005 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	1006 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	1007
48941 4fc480be1e4d remove the deprecation warnings for the old threading API; update the docs Benjamin Peterson <benjamin@python.org> parents: 48757 diff changeset	1008 activeCount = active_count
48757 54138ee20e57 add full deprecation warnings for old threading APIs Benjamin Peterson <benjamin@python.org> parents: 48748 diff changeset	1009
57121 4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	1010 def _enumerate():
4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	1011 # 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	1012 return list(_active.values()) + list(_limbo.values())
4ea0a80ed76a Merged revisions 76119 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 56894 diff changeset	1013
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	1014 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	1015 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	1016 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	1017
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	1018 from _thread import stack_size
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	1019
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1020 # Create the main thread object,
67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1021 # and make it available for the interpreter
67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1022 # (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	1023
40582 67287ca4e1e8 Merged revisions 53005-53303 via svnmerge from Thomas Wouters <thomas@python.org> parents: 39442 diff changeset	1024 _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	1025
32673 97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	1026 # 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	1027 # 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	1028
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	1029 try:
47266 7fe3a8648ce2 Rename thread to _thread and dummy_thread to _dummy_thread. Issue #2875. Georg Brandl <georg@python.org> parents: 46304 diff changeset	1030 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	1031 except ImportError:
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	1032 from _threading_local import local
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	1033
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	1034
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1035 def _after_fork():
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1036 # 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	1037 # 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	1038 # that should not exist after a fork.
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1039
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1040 # 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	1041 # by another (non-forked) thread. http://bugs.python.org/issue874900
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1042 global _active_limbo_lock
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1043 _active_limbo_lock = _allocate_lock()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1044
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1045 # fork() only copied the current thread; clear references to others.
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1046 new_active = {}
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1047 current = current_thread()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1048 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	1049 for thread in _active.values():
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1050 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	1051 # 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	1052 # 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	1053 ident = get_ident()
49058 179f8d89ad19 Issue #874900: fix behaviour of threading module after a fork. Antoine Pitrou <solipsis@pitrou.net> parents: 48941 diff changeset	1054 thread._ident = ident
67340 ad2f34380aac Merged revisions 87710 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 66990 diff changeset	1055 # Any condition variables hanging off of the active thread may
ad2f34380aac Merged revisions 87710 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 66990 diff changeset	1056 # be in an invalid state, so we reinitialize them.
67355 a3b7c290754a Merged revisions 87740 via svnmerge from Gregory P. Smith <greg@mad-scientist.com> parents: 67340 diff changeset	1057 thread._reset_internal_locks()
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1058 new_active[ident] = thread
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1059 else:
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1060 # All the others are already stopped.
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1061 # We don't call _Thread__stop() because it tries to acquire
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1062 # thread._Thread__block which could also have been held while
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1063 # we forked.
49058 179f8d89ad19 Issue #874900: fix behaviour of threading module after a fork. Antoine Pitrou <solipsis@pitrou.net> parents: 48941 diff changeset	1064 thread._stopped = True
48516 eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1065
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1066 _limbo.clear()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1067 _active.clear()
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1068 _active.update(new_active)
eefb98379644 Merger 65032 to py3k Jesse Noller <jnoller@gmail.com> parents: 47669 diff changeset	1069 assert len(_active) == 1

Mercurial > cpython-lru_cache-weakref

annotate Lib/threading.py @ 73798:6cde416ef03b