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

annotate Lib/threading.py @ 44825:ef859cd754a7 legacy-trunk

Fixed a wrong assumption in configure.in and Include/pyport.h. The is finite function is not called isfinite() but finite(). Sorry, my fault. :)

author	Christian Heimes <christian@cheimes.de>
date	Sun, 20 Jan 2008 14:28:28 +0000
parents	0f50e091a36f
children	b5e809f926de

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
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	4
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	5 try:
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	6 import thread
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	7 except ImportError:
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	8 del _sys.modules[__name__]
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	9 raise
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	10
7ea7637341d0 - prefer "import ... as" to "import / (assignments) / del" for most things Fred Drake <fdrake@acm.org> parents: 26883 diff changeset	11 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	12 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	13 from collections import deque
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	14
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	15 # Rename some stuff so "from threading import *" is safe
26883 2133cf355bfc Add __all__. (Brett Cannon.) Guido van Rossum <guido@python.org> parents: 26326 diff changeset	16 __all__ = ['activeCount', 'Condition', 'currentThread', 'enumerate', 'Event',
29676 052bfcbabb7b Provide dummy (do-nothing) settrace() and setprofile() functions until Tim Peters <tim.peters@gmail.com> parents: 28089 diff changeset	17 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', 'Thread',
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	18 'Timer', 'setprofile', 'settrace', 'local', 'stack_size']
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	19
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	20 _start_new_thread = thread.start_new_thread
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	21 _allocate_lock = thread.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	22 _get_ident = thread.get_ident
12813 f1f9c30a4156 patch from Charles Waldman-- Jeremy Hylton <jeremy@alum.mit.edu> parents: 11876 diff changeset	23 ThreadError = thread.error
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	24 del thread
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	25
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	26
29725 7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	27 # Debug support (adapted from ihooks.py).
7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	28 # All the major classes here derive from _Verbose. We force that to
7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	29 # be a new-style class so that all the major classes here are new-style.
7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	30 # This helps debugging (type(instance) is more revealing for instances
7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	31 # of new-style classes).
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	32
29724 3b7b4fd5f7ca Resolved minor XXX question in the obvious way. Tim Peters <tim.peters@gmail.com> parents: 29686 diff changeset	33 _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	34
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	35 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	36
29725 7d0af4561eed Make the classes exposed by threading.py new-style classes. This is Tim Peters <tim.peters@gmail.com> parents: 29724 diff changeset	37 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	38
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	39 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	40 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	41 verbose = _VERBOSE
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	42 self.__verbose = verbose
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	43
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	44 def _note(self, format, *args):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	45 if 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	46 format = format % args
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	47 format = "%s: %s\n" % (
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	48 currentThread().getName(), format)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	49 _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	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 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	52 # 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	53 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	54 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	55 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	56 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	57 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	58
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	59 # 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	60
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	61 _profile_hook = None
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	62 _trace_hook = None
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	63
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	64 def setprofile(func):
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	65 global _profile_hook
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	66 _profile_hook = func
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	67
29679 d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	68 def settrace(func):
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	69 global _trace_hook
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	70 _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	71
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	72 # 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	73
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	74 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	75
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	76 def RLock(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	77 return _RLock(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	78
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	79 class _RLock(_Verbose):
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	80
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	81 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	82 _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	83 self.__block = _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	84 self.__owner = None
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	85 self.__count = 0
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 def __repr__(self):
42410 b6068dd6ae00 Eliminate RLock race condition reported in SF bug #1764059 Nick Coghlan <ncoghlan@gmail.com> parents: 41960 diff changeset	88 owner = self.__owner
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	89 return "<%s(%s, %d)>" % (
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	90 self.__class__.__name__,
42410 b6068dd6ae00 Eliminate RLock race condition reported in SF bug #1764059 Nick Coghlan <ncoghlan@gmail.com> parents: 41960 diff changeset	91 owner and owner.getName(),
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	92 self.__count)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	93
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	94 def acquire(self, blocking=1):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	95 me = currentThread()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	96 if self.__owner is me:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	97 self.__count = self.__count + 1
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	98 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	99 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	100 return 1
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	101 rc = self.__block.acquire(blocking)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	102 if rc:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	103 self.__owner = me
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	104 self.__count = 1
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	105 if __debug__:
34512 cb7896d77de5 Fixed typo in verbose output. Brett Cannon <bcannon@gmail.com> parents: 34363 diff changeset	106 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	107 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	108 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	109 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	110 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	111
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	112 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	113
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	114 def release(self):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	115 if self.__owner is not currentThread():
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	116 raise RuntimeError("cannot release un-aquired 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	117 self.__count = count = self.__count - 1
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	118 if not count:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	119 self.__owner = None
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	120 self.__block.release()
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 __debug__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	122 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	123 else:
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__:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	125 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	126
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	127 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	128 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	129
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	130 # 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	131
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	132 def _acquire_restore(self, (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	133 self.__block.acquire()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	134 self.__count = count
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	135 self.__owner = owner
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	136 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	137 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	138
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	139 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	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_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	142 count = self.__count
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	143 self.__count = 0
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	144 owner = self.__owner
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	145 self.__owner = None
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	146 self.__block.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	147 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	148
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	149 def _is_owned(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	150 return self.__owner is currentThread()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	151
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	152
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	153 def Condition(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	154 return _Condition(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	155
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	156 class _Condition(_Verbose):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	157
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	158 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	159 _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	160 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	161 lock = RLock()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	162 self.__lock = lock
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	163 # 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	164 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	165 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	166 # 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	167 # 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	168 # 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	169 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	170 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	171 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	172 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	173 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	174 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	175 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	176 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	177 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	178 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	179 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	180 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	181 self.__waiters = []
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	182
38084 a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37983 diff changeset	183 def __enter__(self):
a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37983 diff changeset	184 return self.__lock.__enter__()
a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37983 diff changeset	185
a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37983 diff changeset	186 def __exit__(self, *args):
a812d0fae74a Get rid of __context__, per the latest changes to PEP 343 and python-dev Guido van Rossum <guido@python.org> parents: 37983 diff changeset	187 return self.__lock.__exit__(*args)
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	188
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	189 def __repr__(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	190 return "<Condition(%s, %d)>" % (self.__lock, len(self.__waiters))
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	191
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	192 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	193 self.__lock.release() # No state to save
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	194
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	195 def _acquire_restore(self, x):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	196 self.__lock.acquire() # Ignore saved state
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	197
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	198 def _is_owned(self):
24828 4cf502716d15 Explain a little more. Jeremy Hylton <jeremy@alum.mit.edu> parents: 24827 diff changeset	199 # Return True if lock is owned by currentThread.
24827 e5a07cc81559 Explain a minor mystery. Jeremy Hylton <jeremy@alum.mit.edu> parents: 24058 diff changeset	200 # This method is called only if __lock doesn't have _is_owned().
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 if self.__lock.acquire(0):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	202 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	203 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	204 else:
22830 a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool. Tim Peters <tim.peters@gmail.com> parents: 21981 diff changeset	205 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	206
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	207 def wait(self, timeout=None):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	208 if not self._is_owned():
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	209 raise RuntimeError("cannot wait on un-aquired 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	210 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	211 waiter.acquire()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	212 self.__waiters.append(waiter)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	213 saved_state = self._release_save()
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	214 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	215 if timeout is None:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	216 waiter.acquire()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	217 if __debug__:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	218 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	219 else:
19184 2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	220 # Balancing act: We can't afford a pure busy loop, so we
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	221 # have to sleep; but if we sleep the whole timeout time,
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	222 # we'll be unresponsive. The scheme here sleeps very
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	223 # little at first, longer as time goes on, but never longer
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	224 # than 20 times per second (or the timeout time remaining).
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	225 endtime = _time() + timeout
19184 2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	226 delay = 0.0005 # 500 us -> initial delay of 1 ms
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	227 while True:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	228 gotit = waiter.acquire(0)
19184 2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	229 if gotit:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	230 break
19184 2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	231 remaining = endtime - _time()
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	232 if remaining <= 0:
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	233 break
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	234 delay = min(delay * 2, remaining, .05)
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	235 _sleep(delay)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	236 if not gotit:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	237 if __debug__:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	238 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	239 try:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	240 self.__waiters.remove(waiter)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	241 except ValueError:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	242 pass
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	243 else:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	244 if __debug__:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	245 self._note("%s.wait(%s): got it", self, timeout)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	246 finally:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	247 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	248
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	249 def notify(self, n=1):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	250 if not self._is_owned():
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	251 raise RuntimeError("cannot notify on un-aquired 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	252 __waiters = self.__waiters
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	253 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	254 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	255 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	256 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	257 return
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	258 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	259 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	260 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	261 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	262 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	263 __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	264 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	265 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	266
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	267 def notifyAll(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	268 self.notify(len(self.__waiters))
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	269
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	270
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	271 def Semaphore(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	272 return _Semaphore(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	273
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	274 class _Semaphore(_Verbose):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	275
11876 c27d3e8c45c4 Fix a typo in a comment Andrew M. Kuchling <amk@amk.ca> parents: 11707 diff changeset	276 # 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	277
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	278 def __init__(self, value=1, verbose=None):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	279 if value < 0:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	280 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	281 _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	282 self.__cond = Condition(Lock())
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	283 self.__value = value
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	284
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	285 def acquire(self, blocking=1):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	286 rc = 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	287 self.__cond.acquire()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	288 while self.__value == 0:
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 blocking:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	290 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	291 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	292 self._note("%s.acquire(%s): blocked waiting, value=%s",
6386f01f2401 add debug calls to self._note for the Semaphore class. This closes bug Skip Montanaro <skip@pobox.com> parents: 19210 diff changeset	293 self, blocking, self.__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	294 self.__cond.wait()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	295 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	296 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	297 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	298 self._note("%s.acquire: success, value=%s",
2a083e050617 of course I muffed it separating the notes code from the initial_value Skip Montanaro <skip@pobox.com> parents: 19377 diff changeset	299 self, self.__value)
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	300 rc = 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	301 self.__cond.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	302 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	303
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	304 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	305
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	306 def 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	307 self.__cond.acquire()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	308 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	309 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	310 self._note("%s.release: success, value=%s",
2a083e050617 of course I muffed it separating the notes code from the initial_value Skip Montanaro <skip@pobox.com> parents: 19377 diff changeset	311 self, self.__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	312 self.__cond.notify()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	313 self.__cond.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	314
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	315 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	316 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	317
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
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	319 def BoundedSemaphore(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	320 return _BoundedSemaphore(args, *kwargs)
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	321
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	322 class _BoundedSemaphore(_Semaphore):
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	323 """Semaphore that checks that # releases is <= # acquires"""
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	324 def __init__(self, value=1, verbose=None):
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	325 _Semaphore.__init__(self, value, verbose)
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	326 self._initial_value = value
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	327
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	328 def release(self):
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	329 if self._Semaphore__value >= self._initial_value:
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	330 raise ValueError, "Semaphore released too many times"
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	331 return _Semaphore.release(self)
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	332
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	333
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	334 def Event(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	335 return _Event(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	336
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	337 class _Event(_Verbose):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	338
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	339 # 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	340
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	341 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	342 _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	343 self.__cond = Condition(Lock())
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	344 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	345
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	346 def isSet(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	347 return self.__flag
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	348
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	349 def set(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	350 self.__cond.acquire()
26326 2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	351 try:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	352 self.__flag = True
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	353 self.__cond.notifyAll()
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	354 finally:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	355 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	356
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	357 def clear(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	358 self.__cond.acquire()
26326 2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	359 try:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	360 self.__flag = False
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	361 finally:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	362 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	363
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	364 def wait(self, timeout=None):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	365 self.__cond.acquire()
26326 2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	366 try:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	367 if not self.__flag:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	368 self.__cond.wait(timeout)
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	369 finally:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	370 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	371
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	372 # 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	373 _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	374 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	375 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	376 _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	377 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	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 # 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	380 _active_limbo_lock = _allocate_lock()
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	381 _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	382 _limbo = {}
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	383
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	384
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	385 # 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	386
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	387 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	388
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	389 __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	390 # 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	391 # 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	392 # 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	393 # 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	394 __exc_info = _sys.exc_info
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	395
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	396 def __init__(self, group=None, target=None, name=None,
35236 d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	397 args=(), kwargs=None, verbose=None):
8474 049aa3a8a172 Get rid of tabnanny's last complaints. Guido van Rossum <guido@python.org> parents: 8454 diff changeset	398 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	399 _Verbose.__init__(self, verbose)
35236 d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	400 if kwargs is None:
d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	401 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	402 self.__target = target
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	403 self.__name = str(name or _newname())
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	404 self.__args = args
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	405 self.__kwargs = kwargs
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	406 self.__daemonic = self._set_daemon()
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	407 self.__started = False
e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	408 self.__stopped = 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	409 self.__block = Condition(Lock())
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	410 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	411 # 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	412 # sys.exc_info since it can be changed between instances
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	413 self.__stderr = _sys.stderr
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	414
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	415 def _set_daemon(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	416 # Overridden in _MainThread and _DummyThread
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	417 return currentThread().isDaemon()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	418
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	419 def __repr__(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	420 assert self.__initialized, "Thread.__init__() was not called"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	421 status = "initial"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	422 if self.__started:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	423 status = "started"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	424 if self.__stopped:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	425 status = "stopped"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	426 if self.__daemonic:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	427 status = status + " daemon"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	428 return "<%s(%s, %s)>" % (self.__class__.__name__, self.__name, status)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	429
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	430 def start(self):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	431 if not self.__initialized:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	432 raise RuntimeError("thread.__init__() not called")
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	433 if self.__started:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	434 raise RuntimeError("thread already started")
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	435 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	436 self._note("%s.start(): starting thread", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	437 _active_limbo_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	438 _limbo[self] = self
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	439 _active_limbo_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	440 _start_new_thread(self.__bootstrap, ())
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	441 self.__started = 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	442 _sleep(0.000001) # 1 usec, to let the thread run (Solaris hack)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	443
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	444 def run(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	445 if self.__target:
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	446 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	447
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	448 def __bootstrap(self):
42677 0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	449 # Wrapper around the real bootstrap code that ignores
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	450 # exceptions during interpreter cleanup. Those typically
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	451 # happen when a daemon thread wakes up at an unfortunate
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	452 # moment, finds the world around it destroyed, and raises some
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	453 # random exception *** while trying to report the exception in
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	454 # __bootstrap_inner() below ***. Those random exceptions
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	455 # don't help anybody, and they confuse users, so we suppress
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	456 # them. We suppress them only when it appears that the world
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	457 # indeed has already been destroyed, so that exceptions in
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	458 # __bootstrap_inner() during normal business hours are properly
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	459 # reported. Also, we only suppress them for daemonic threads;
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	460 # if a non-daemonic encounters this, something else is wrong.
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	461 try:
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	462 self.__bootstrap_inner()
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	463 except:
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	464 if self.__daemonic and _sys is None:
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	465 return
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	466 raise
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	467
0f50e091a36f Add a hack (originally devised in a slightly different form by Thomas Wouters) Guido van Rossum <guido@python.org> parents: 42410 diff changeset	468 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	469 try:
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	470 self.__started = 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	471 _active_limbo_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	472 _active[_get_ident()] = self
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	473 del _limbo[self]
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	474 _active_limbo_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	475 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	476 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	477
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	478 if _trace_hook:
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	479 self._note("%s.__bootstrap(): registering trace hook", self)
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	480 _sys.settrace(_trace_hook)
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	481 if _profile_hook:
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	482 self._note("%s.__bootstrap(): registering profile hook", self)
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	483 _sys.setprofile(_profile_hook)
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	484
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	485 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	486 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	487 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	488 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	489 self._note("%s.__bootstrap(): raised SystemExit", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	490 except:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	491 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	492 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	493 # If sys.stderr is no more (most likely from interpreter
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	494 # shutdown) use self.__stderr. Otherwise still use sys (as in
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	495 # _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	496 # self.
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	497 if _sys:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	498 _sys.stderr.write("Exception in thread %s:\n%s\n" %
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	499 (self.getName(), _format_exc()))
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	500 else:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	501 # 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	502 # 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	503 # Lib/traceback.py)
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	504 exc_type, exc_value, exc_tb = self.__exc_info()
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	505 try:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	506 print>>self.__stderr, (
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	507 "Exception in thread " + self.getName() +
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	508 " (most likely raised during interpreter shutdown):")
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	509 print>>self.__stderr, (
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	510 "Traceback (most recent call last):")
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	511 while exc_tb:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	512 print>>self.__stderr, (
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	513 ' 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	514 (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	515 exc_tb.tb_lineno,
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	516 exc_tb.tb_frame.f_code.co_name))
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	517 exc_tb = exc_tb.tb_next
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	518 print>>self.__stderr, ("%s: %s" % (exc_type, exc_value))
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	519 # 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	520 # 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	521 finally:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	522 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	523 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	524 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	525 self._note("%s.__bootstrap(): normal return", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	526 finally:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	527 self.__stop()
21589 d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	528 try:
d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	529 self.__delete()
d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	530 except:
d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	531 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	532
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	533 def __stop(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	534 self.__block.acquire()
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	535 self.__stopped = 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	536 self.__block.notifyAll()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	537 self.__block.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	538
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	539 def __delete(self):
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	540 "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	541
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	542 # Notes about running with dummy_thread:
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	543 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	544 # Must take care to not raise an exception if dummy_thread is being
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	545 # used (and thus this module is being used as an instance of
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	546 # dummy_threading). dummy_thread.get_ident() always returns -1 since
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	547 # there is only one thread if dummy_thread is being used. Thus
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	548 # 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	549 # 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	550 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	551 # 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	552 # gets overwritten the instant an instance of Thread is created; both
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	553 # threads return -1 from dummy_thread.get_ident() and thus have the
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	554 # 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	555 # '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	556 # 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	557 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	558 # 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	559 # _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	560 # 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	561 # 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	562
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	563 _active_limbo_lock.acquire()
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	564 try:
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	565 try:
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	566 del _active[_get_ident()]
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	567 except KeyError:
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	568 if 'dummy_threading' not in _sys.modules:
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	569 raise
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	570 finally:
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	571 _active_limbo_lock.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	572
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	573 def join(self, timeout=None):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	574 if not self.__initialized:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	575 raise RuntimeError("Thread.__init__() not called")
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	576 if not self.__started:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	577 raise RuntimeError("cannot join thread before it is started")
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	578 if self is currentThread():
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	579 raise RuntimeError("cannot join current thread")
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	580
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	581 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	582 if not self.__stopped:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	583 self._note("%s.join(): waiting until thread stops", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	584 self.__block.acquire()
35932 b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	585 try:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	586 if timeout is None:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	587 while not self.__stopped:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	588 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	589 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	590 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	591 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	592 deadline = _time() + timeout
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	593 while not self.__stopped:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	594 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	595 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	596 if __debug__:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	597 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	598 break
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	599 self.__block.wait(delay)
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	600 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	601 if __debug__:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	602 self._note("%s.join(): thread stopped", self)
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	603 finally:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	604 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	605
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	606 def getName(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	607 assert self.__initialized, "Thread.__init__() not called"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	608 return self.__name
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	609
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	610 def setName(self, name):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	611 assert self.__initialized, "Thread.__init__() not called"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	612 self.__name = str(name)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	613
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	614 def isAlive(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	615 assert self.__initialized, "Thread.__init__() not called"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	616 return self.__started and not self.__stopped
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	617
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	618 def isDaemon(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	619 assert self.__initialized, "Thread.__init__() not called"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	620 return self.__daemonic
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	621
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	622 def setDaemon(self, daemonic):
41960 588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	623 if not self.__initialized:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	624 raise RuntimeError("Thread.__init__() not called")
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	625 if self.__started:
588686d4c2cf Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O). Collin Winter <collinw@gmail.com> parents: 40542 diff changeset	626 raise RuntimeError("cannot set daemon status of active 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	627 self.__daemonic = daemonic
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	628
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	629 # 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	630
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	631 def Timer(args, *kwargs):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	632 return _Timer(args, *kwargs)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	633
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	634 class _Timer(Thread):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	635 """Call a function after a specified number of seconds:
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	636
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	637 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	638 t.start()
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	639 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	640 """
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	641
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	642 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	643 Thread.__init__(self)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	644 self.interval = interval
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	645 self.function = function
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	646 self.args = args
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	647 self.kwargs = kwargs
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	648 self.finished = Event()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	649
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	650 def cancel(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	651 """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	652 self.finished.set()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	653
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	654 def run(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	655 self.finished.wait(self.interval)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	656 if not self.finished.isSet():
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	657 self.function(self.args, *self.kwargs)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	658 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	659
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	660 # 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	661 # 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	662
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	663 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	664
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	665 def __init__(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	666 Thread.__init__(self, name="MainThread")
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	667 self._Thread__started = 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	668 _active_limbo_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	669 _active[_get_ident()] = self
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	670 _active_limbo_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	671
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	672 def _set_daemon(self):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	673 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	674
40542 4203f8e6e86a Bug #1566280: Explicitly invoke threading._shutdown from Py_Main, Martin v. Löwis <martin@v.loewis.de> parents: 38794 diff changeset	675 def _exitfunc(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	676 self._Thread__stop()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	677 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	678 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	679 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	680 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	681 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	682 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	683 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	684 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	685 self._note("%s: exiting", self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	686 self._Thread__delete()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	687
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	688 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	689 for t in enumerate():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	690 if not t.isDaemon() and t.isAlive():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	691 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	692 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	693
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	694
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	695 # 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	696 # These aren't garbage collected when they die, nor can they be waited for.
35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	697 # If they invoke anything in threading.py that calls currentThread(), they
35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	698 # leave an entry in the _active dict forever after.
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	699 # Their purpose is to return something from currentThread().
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	700 # 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	701 # 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	702
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	703 class _DummyThread(Thread):
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	704
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	705 def __init__(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	706 Thread.__init__(self, name=_newname("Dummy-%d"))
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	707
35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	708 # Thread.__block consumes an OS-level locking primitive, which
35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	709 # 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	710 # instance is immortal, that's bad, so release this resource.
34361 8618168dca27 In _DummyThread objects the lock stored in __block (allocated thanks to Brett Cannon <bcannon@gmail.com> parents: 32778 diff changeset	711 del self._Thread__block
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	712
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	713 self._Thread__started = 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	714 _active_limbo_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	715 _active[_get_ident()] = self
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	716 _active_limbo_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	717
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	718 def _set_daemon(self):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	719 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	720
21981 4e9cc26e03fd SF #515023. Make _DummyThread.join() signature match base class (Thread) Neal Norwitz <nnorwitz@gmail.com> parents: 21589 diff changeset	721 def join(self, timeout=None):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	722 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	723
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	724
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	725 # 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	726
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	727 def currentThread():
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 return _active[_get_ident()]
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 KeyError:
15586 ff84112dabc8 Comment out a debugging print statement that triggered a complaint in Guido van Rossum <guido@python.org> parents: 14063 diff changeset	731 ##print "currentThread(): no current thread for", _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	732 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	733
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	734 def activeCount():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	735 _active_limbo_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	736 count = len(_active) + len(_limbo)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	737 _active_limbo_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	738 return count
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	739
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	740 def enumerate():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	741 _active_limbo_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	742 active = _active.values() + _limbo.values()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	743 _active_limbo_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	744 return active
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	745
38794 f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	746 from thread import stack_size
f7d23bca599f Patch #1454481: Make thread stack size runtime tunable. Andrew MacIntyre <andymac@bullseye.apana.org.au> parents: 38592 diff changeset	747
40542 4203f8e6e86a Bug #1566280: Explicitly invoke threading._shutdown from Py_Main, Martin v. Löwis <martin@v.loewis.de> parents: 38794 diff changeset	748 # Create the main thread object,
4203f8e6e86a Bug #1566280: Explicitly invoke threading._shutdown from Py_Main, Martin v. Löwis <martin@v.loewis.de> parents: 38794 diff changeset	749 # and make it available for the interpreter
4203f8e6e86a Bug #1566280: Explicitly invoke threading._shutdown from Py_Main, Martin v. Löwis <martin@v.loewis.de> parents: 38794 diff changeset	750 # (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	751
40542 4203f8e6e86a Bug #1566280: Explicitly invoke threading._shutdown from Py_Main, Martin v. Löwis <martin@v.loewis.de> parents: 38794 diff changeset	752 _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	753
32673 97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	754 # 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	755 # 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	756
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	757 try:
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	758 from thread import _local as local
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	759 except ImportError:
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	760 from _threading_local import local
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	761
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	762
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	763 # Self-test code
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	764
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	765 def _test():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	766
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	767 class BoundedQueue(_Verbose):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	768
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	769 def __init__(self, limit):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	770 _Verbose.__init__(self)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	771 self.mon = RLock()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	772 self.rc = Condition(self.mon)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	773 self.wc = Condition(self.mon)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	774 self.limit = limit
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: 30862 diff changeset	775 self.queue = deque()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	776
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	777 def put(self, item):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	778 self.mon.acquire()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	779 while len(self.queue) >= self.limit:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	780 self._note("put(%s): queue full", item)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	781 self.wc.wait()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	782 self.queue.append(item)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	783 self._note("put(%s): appended, length now %d",
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	784 item, len(self.queue))
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	785 self.rc.notify()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	786 self.mon.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	787
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	788 def get(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	789 self.mon.acquire()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	790 while not self.queue:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	791 self._note("get(): queue empty")
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	792 self.rc.wait()
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: 30862 diff changeset	793 item = self.queue.popleft()
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	794 self._note("get(): got %s, %d left", item, len(self.queue))
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	795 self.wc.notify()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	796 self.mon.release()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	797 return item
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	798
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	799 class ProducerThread(Thread):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	800
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	801 def __init__(self, queue, quota):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	802 Thread.__init__(self, name="Producer")
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	803 self.queue = queue
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	804 self.quota = quota
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	805
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	806 def run(self):
8394 93aa08c77e60 Use random instead of whrandom. Guido van Rossum <guido@python.org> parents: 7949 diff changeset	807 from random import random
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	808 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	809 while counter < self.quota:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	810 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	811 self.queue.put("%s.%d" % (self.getName(), counter))
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	812 _sleep(random() * 0.00001)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	813
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	814
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	815 class ConsumerThread(Thread):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	816
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	817 def __init__(self, queue, count):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	818 Thread.__init__(self, name="Consumer")
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	819 self.queue = queue
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	820 self.count = count
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	821
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	822 def run(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	823 while self.count > 0:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	824 item = self.queue.get()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	825 print item
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	826 self.count = self.count - 1
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	827
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	828 NP = 3
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	829 QL = 4
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	830 NI = 5
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	831
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	832 Q = BoundedQueue(QL)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	833 P = []
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	834 for i in range(NP):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	835 t = ProducerThread(Q, NI)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	836 t.setName("Producer-%d" % (i+1))
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	837 P.append(t)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	838 C = ConsumerThread(Q, NI*NP)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	839 for t in P:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	840 t.start()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	841 _sleep(0.000001)
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	842 C.start()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	843 for t in P:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	844 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	845 C.join()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	846
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	847 if __name__ == '__main__':
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	848 _test()

Mercurial > cpython-lru_cache-weakref

annotate Lib/threading.py @ 44825:ef859cd754a7 legacy-trunk