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

annotate Lib/threading.py @ 37850:ebe59cd18273

Use explicit relative import for an, ehm, relative import.

author	Thomas Wouters <thomas@python.org>
date	Tue, 18 Apr 2006 21:41:36 +0000
parents	fc10ff322df1
children	269c62c7f66a 29ae5e0fc348

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',
32673 97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	18 'Timer', 'setprofile', 'settrace', 'local']
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):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	88 return "<%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	89 self.__class__.__name__,
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.__owner and self.__owner.getName(),
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	91 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	92
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	93 def __context__(self):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	94 return self
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	95
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	96 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	97 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	98 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	99 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	100 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	101 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	102 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	103 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	104 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	105 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	106 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	107 if __debug__:
34512 cb7896d77de5 Fixed typo in verbose output. Brett Cannon <bcannon@gmail.com> parents: 34363 diff changeset	108 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	109 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	110 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	111 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	112 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	113
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	114 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	115
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	116 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	117 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	118 assert self.__owner is me, "release() of un-acquire()d lock"
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.__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	120 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	121 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	122 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	123 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	124 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	125 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	126 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	127 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	128
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	129 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	130 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	131
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	132 # 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	133
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	134 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	135 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	136 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	137 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	138 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	139 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	140
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	141 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	142 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	143 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	144 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	145 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	146 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	147 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	148 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	149 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	150
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	151 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	152 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	153
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	154
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	155 def Condition(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	156 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	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 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	159
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	160 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	161 _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	162 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	163 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	164 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	165 # 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	166 self.acquire = lock.acquire
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	167 self.__enter__ = self.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	168 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	169 # 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	170 # 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	171 # 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	172 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	173 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	174 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	175 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	176 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	177 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	178 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	179 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	180 try:
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._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	182 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	183 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	184 self.__waiters = []
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	185
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	186 def __context__(self):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	187 return self
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	188
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	189 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	190 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	191
7949 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 __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	193 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	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 _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	196 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	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 _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	199 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	200
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	201 def _is_owned(self):
24828 4cf502716d15 Explain a little more. Jeremy Hylton <jeremy@alum.mit.edu> parents: 24827 diff changeset	202 # Return True if lock is owned by currentThread.
24827 e5a07cc81559 Explain a minor mystery. Jeremy Hylton <jeremy@alum.mit.edu> parents: 24058 diff changeset	203 # 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	204 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	205 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	206 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	207 else:
22830 a9dd5e6d6805 Convert a pile of obvious "yes/no" functions to return bool. Tim Peters <tim.peters@gmail.com> parents: 21981 diff changeset	208 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	209
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	210 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	211 assert self._is_owned(), "wait() of un-acquire()d lock"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	212 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	213 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	214 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	215 saved_state = self._release_save()
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	216 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	217 if timeout is None:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	218 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	219 if __debug__:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	220 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	221 else:
19184 2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	222 # 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	223 # 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	224 # 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	225 # 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	226 # 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	227 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	228 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	229 while True:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	230 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	231 if gotit:
17303 836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	232 break
19184 2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	233 remaining = endtime - _time()
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	234 if remaining <= 0:
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	235 break
2967ca96d07e _Condition.wait(): never sleep longer than the timeout time remaining, Tim Peters <tim.peters@gmail.com> parents: 17303 diff changeset	236 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	237 _sleep(delay)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	238 if not gotit:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	239 if __debug__:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	240 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	241 try:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	242 self.__waiters.remove(waiter)
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	243 except ValueError:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	244 pass
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	245 else:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	246 if __debug__:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	247 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	248 finally:
836cdf8d1245 SF bug [#410708] Condition.wait() and KeyboardInterrupt. Tim Peters <tim.peters@gmail.com> parents: 15873 diff changeset	249 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	250
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	251 def notify(self, n=1):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	252 assert self._is_owned(), "notify() of un-acquire()d lock"
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 = 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	254 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	255 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	256 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	257 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	258 return
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	259 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	260 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	261 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	262 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	263 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	264 __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	265 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	266 pass
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	267
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	268 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	269 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	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
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	272 def Semaphore(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	273 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	274
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	275 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	276
11876 c27d3e8c45c4 Fix a typo in a comment Andrew M. Kuchling <amk@amk.ca> parents: 11707 diff changeset	277 # 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	278
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	279 def __init__(self, value=1, 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	280 assert value >= 0, "Semaphore initial value must be >= 0"
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
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	285 def __context__(self):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	286 return self
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	287
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	288 def acquire(self, blocking=1):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	289 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	290 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	291 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	292 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	293 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	294 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	295 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	296 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	297 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	298 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	299 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	300 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	301 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	302 self, self.__value)
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	303 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	304 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	305 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	306
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	307 __enter__ = acquire
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	308
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	309 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	310 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	311 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	312 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	313 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	314 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	315 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	316 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	317
36737 fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	318 def __exit__(self, t, v, tb):
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	319 self.release()
fa92fe15251a Updates to the with-statement: Guido van Rossum <guido@python.org> parents: 35932 diff changeset	320
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	321
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	322 def BoundedSemaphore(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	323 return _BoundedSemaphore(args, *kwargs)
19404 6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	324
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	325 class _BoundedSemaphore(_Semaphore):
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	326 """Semaphore that checks that # releases is <= # acquires"""
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	327 def __init__(self, value=1, verbose=None):
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	328 _Semaphore.__init__(self, value, verbose)
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	329 self._initial_value = value
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	330
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	331 def release(self):
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	332 if self._Semaphore__value >= self._initial_value:
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	333 raise ValueError, "Semaphore released too many times"
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	334 return _Semaphore.release(self)
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	335
6125d9f92441 Added new BoundedSemaphore class. Closes bug 452836. Skip Montanaro <skip@pobox.com> parents: 19379 diff changeset	336
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	337 def Event(args, *kwargs):
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	338 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	339
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	340 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	341
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	342 # 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	343
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	344 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	345 _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	346 self.__cond = Condition(Lock())
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	347 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	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 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	350 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	351
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	352 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	353 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	354 try:
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.__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	356 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	357 finally:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	358 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	359
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	360 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	361 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	362 try:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	363 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	364 finally:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	365 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	366
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	367 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	368 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	369 try:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	370 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	371 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	372 finally:
2b0e815c0b30 The _Event class should be more careful with releasing its lock when Guido van Rossum <guido@python.org> parents: 24833 diff changeset	373 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	374
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	375 # 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	376 _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	377 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	378 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	379 _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	380 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	381
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	382 # 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	383 _active_limbo_lock = _allocate_lock()
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	384 _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	385 _limbo = {}
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
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	388 # 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	389
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	390 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	391
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	392 __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	393 # 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	394 # 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	395 # 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	396 # 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	397 __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	398
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	399 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	400 args=(), kwargs=None, verbose=None):
8474 049aa3a8a172 Get rid of tabnanny's last complaints. Guido van Rossum <guido@python.org> parents: 8454 diff changeset	401 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	402 _Verbose.__init__(self, verbose)
35236 d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	403 if kwargs is None:
d0c6965b525e bug [ 1238170 ] threading.Thread uses {} as default argument Georg Brandl <georg@python.org> parents: 34512 diff changeset	404 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	405 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	406 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	407 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	408 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	409 self.__daemonic = self._set_daemon()
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	410 self.__started = False
e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	411 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	412 self.__block = Condition(Lock())
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	413 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	414 # 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	415 # 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	416 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	417
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	418 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	419 # 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	420 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	421
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	422 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	423 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	424 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	425 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	426 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	427 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	428 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	429 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	430 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	431 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	432
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	433 def start(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	434 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	435 assert not self.__started, "thread already started"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	436 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	437 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	438 _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	439 _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	440 _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	441 _start_new_thread(self.__bootstrap, ())
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	442 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	443 _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	444
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	445 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	446 if self.__target:
28089 14f65d661084 Get rid of many apply() calls. Guido van Rossum <guido@python.org> parents: 26905 diff changeset	447 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	448
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	449 def __bootstrap(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	450 try:
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	451 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	452 _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	453 _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	454 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	455 _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	456 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	457 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	458
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	459 if _trace_hook:
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	460 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	461 _sys.settrace(_trace_hook)
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	462 if _profile_hook:
d0f15977f37f Add settrace() and setprofile() functions to the threading library. Jeremy Hylton <jeremy@alum.mit.edu> parents: 29676 diff changeset	463 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	464 _sys.setprofile(_profile_hook)
29686 371092ce5c2b Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 29683 diff changeset	465
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	466 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	467 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	468 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	469 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	470 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	471 except:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	472 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	473 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	474 # 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	475 # 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	476 # _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	477 # self.
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	478 if _sys:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	479 _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	480 (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	481 else:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	482 # 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	483 # 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	484 # 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	485 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	486 try:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	487 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	488 "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	489 " (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	490 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	491 "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	492 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	493 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	494 ' 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	495 (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	496 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	497 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	498 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	499 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	500 # 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	501 # 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	502 finally:
796ccb9082ef threading.Thread objects will now print a traceback for an exception raised Brett Cannon <bcannon@gmail.com> parents: 31629 diff changeset	503 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	504 else:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	505 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	506 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	507 finally:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	508 self.__stop()
21589 d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	509 try:
d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	510 self.__delete()
d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	511 except:
d04eb8d664e2 Thread.__bootstrap(): ignore exceptions in the self.__delete() call in Guido van Rossum <guido@python.org> parents: 19953 diff changeset	512 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	513
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	514 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	515 self.__block.acquire()
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	516 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	517 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	518 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	519
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	520 def __delete(self):
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	521 "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	522
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	523 # 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	524 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	525 # 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	526 # 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	527 # 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	528 # 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	529 # 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	530 # 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	531 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	532 # 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	533 # 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	534 # 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	535 # 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	536 # '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	537 # 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	538 #
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	539 # 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	540 # _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	541 # 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	542 # 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	543
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	544 _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	545 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	546 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	547 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	548 except KeyError:
32778 7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	549 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	550 raise
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	551 finally:
7af695bc5480 Thread.__delete: Discussion of internal obscurities belongs in comments Tim Peters <tim.peters@gmail.com> parents: 32774 diff changeset	552 _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	553
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	554 def join(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	555 assert self.__initialized, "Thread.__init__() not called"
8474 049aa3a8a172 Get rid of tabnanny's last complaints. Guido van Rossum <guido@python.org> parents: 8454 diff changeset	556 assert self.__started, "cannot join thread before it is 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	557 assert self is not currentThread(), "cannot join current thread"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	558 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	559 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	560 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	561 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	562 try:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	563 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	564 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	565 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	566 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	567 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	568 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	569 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	570 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	571 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	572 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	573 if __debug__:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	574 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	575 break
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	576 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	577 else:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	578 if __debug__:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	579 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	580 finally:
b7c6c461a808 Prevent threading.Thread.join() from blocking when a previous call raised an Brett Cannon <bcannon@gmail.com> parents: 35236 diff changeset	581 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	582
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	583 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	584 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	585 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	586
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	587 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	588 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	589 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	590
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	591 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	592 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	593 return self.__started and not self.__stopped
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	594
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	595 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	596 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	597 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	598
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	599 def setDaemon(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	600 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	601 assert not self.__started, "cannot set daemon status of active thread"
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	602 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	603
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	604 # 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	605
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	606 def Timer(args, *kwargs):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	607 return _Timer(args, *kwargs)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	608
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	609 class _Timer(Thread):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	610 """Call a function after a specified number of seconds:
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	611
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	612 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	613 t.start()
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	614 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	615 """
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	616
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	617 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	618 Thread.__init__(self)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	619 self.interval = interval
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	620 self.function = function
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	621 self.args = args
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	622 self.kwargs = kwargs
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	623 self.finished = Event()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	624
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	625 def cancel(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	626 """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	627 self.finished.set()
19953 0f9df563b65d Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 19727 diff changeset	628
19727 f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	629 def run(self):
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	630 self.finished.wait(self.interval)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	631 if not self.finished.isSet():
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	632 self.function(self.args, *self.kwargs)
f3036d4e3c22 Patch #428326: New class threading.Timer. Martin v. Löwis <martin@v.loewis.de> parents: 19404 diff changeset	633 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	634
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	635 # 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	636 # 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	637
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	638 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	639
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	640 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	641 Thread.__init__(self, name="MainThread")
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	642 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	643 _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	644 _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	645 _active_limbo_lock.release()
14063 17b7fc440195 Revise to use atexit instead of monkeying with sys.exitfunc directly. Fred Drake <fdrake@acm.org> parents: 12813 diff changeset	646 import atexit
17b7fc440195 Revise to use atexit instead of monkeying with sys.exitfunc directly. Fred Drake <fdrake@acm.org> parents: 12813 diff changeset	647 atexit.register(self.__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	648
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	649 def _set_daemon(self):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	650 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	651
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	652 def __exitfunc(self):
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	653 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	654 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	655 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	656 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	657 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	658 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	659 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	660 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	661 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	662 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	663 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	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 _pickSomeNonDaemonThread():
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	666 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	667 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	668 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	669 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	670
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 # 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	673 # 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	674 # 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	675 # 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	676 # 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	677 # 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	678 # 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	679
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	680 class _DummyThread(Thread):
15873 3dd217fbdd59 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 15586 diff changeset	681
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	682 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	683 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	684
35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	685 # 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	686 # 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	687 # 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	688 del self._Thread__block
34363 35f31790c6f9 threading._DummyThread.__init__(): document obscure new code. Tim Peters <tim.peters@gmail.com> parents: 34361 diff changeset	689
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	690 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	691 _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	692 _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	693 _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	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 def _set_daemon(self):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	696 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	697
21981 4e9cc26e03fd SF #515023. Make _DummyThread.join() signature match base class (Thread) Neal Norwitz <nnorwitz@gmail.com> parents: 21589 diff changeset	698 def join(self, timeout=None):
22867 e2f2187c3d2c Partial introduction of bools where appropriate. Guido van Rossum <guido@python.org> parents: 22830 diff changeset	699 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	700
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	701
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	702 # 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	703
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	704 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	705 try:
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	706 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	707 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	708 ##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	709 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	710
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	711 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	712 _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	713 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	714 _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	715 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	716
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	717 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	718 _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	719 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	720 _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	721 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	722
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	723 # Create the main thread object
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 _MainThread()
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	726
32673 97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	727 # 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	728 # 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	729
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	730 try:
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	731 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	732 except ImportError:
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	733 from _threading_local import local
97768d87394a Implemented thread-local data as proposed on python-dev: Jim Fulton <jim@zope.com> parents: 32475 diff changeset	734
7949 58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	735
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	736 # 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	737
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	738 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	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 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	741
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	742 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	743 _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	744 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	745 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	746 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	747 self.limit = limit
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: 30862 diff changeset	748 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	749
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	750 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	751 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	752 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	753 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	754 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	755 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	756 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	757 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	758 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	759 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	760
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	761 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	762 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	763 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	764 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	765 self.rc.wait()
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: 30862 diff changeset	766 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	767 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	768 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	769 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	770 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	771
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	772 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	773
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	774 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	775 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	776 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	777 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	778
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	779 def run(self):
8394 93aa08c77e60 Use random instead of whrandom. Guido van Rossum <guido@python.org> parents: 7949 diff changeset	780 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	781 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	782 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	783 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	784 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	785 _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	786
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 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	789
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	790 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	791 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	792 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	793 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	794
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	795 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	796 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	797 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	798 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	799 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	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 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	802 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	803 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	804
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	805 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	806 P = []
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	807 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	808 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	809 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	810 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	811 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	812 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	813 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	814 _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	815 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	816 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	817 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	818 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	819
58d6815af002 New Java-style threading module. The doc strings are in a separate module. Guido van Rossum <guido@python.org> parents: diff changeset	820 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	821 _test()

Mercurial > cpython-lru_cache-weakref

annotate Lib/threading.py @ 37850:ebe59cd18273