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Close #12028: Make threading._get_ident() public, rename it to

Browse source 
threading.get_ident() and document it. This function was used by
_thread.get_ident().
This commit is contained in:
Victor Stinner 2011-05-30 23:02:52 +02:00
parent d976098e3b
commit 2a12974bca
12 changed files with 50 additions and 39 deletions
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7
Doc/library/signal.rst
View file

@ -187,10 +187,9 @@ The :mod:`signal` module defines the following functions:
Send the signal *signum* to the thread *thread_id*, another thread in the same
process as the caller. The signal is asynchronously directed to thread.
*thread_id* can be read from the :attr:`~threading.Thread.ident` attribute
of :attr:`threading.Thread`. For example,
``threading.current_thread().ident`` gives the identifier of the current
thread.
Use :func:`threading.get_ident()` or the :attr:`~threading.Thread.ident`
attribute of :attr:`threading.Thread` to get a 'thread identifier' for
*thread_id*.
If *signum* is 0, then no signal is sent, but error checking is still
performed; this can be used to check if a thread is still running.

19
Doc/library/threading.rst
View file

@ -48,6 +48,17 @@ This module defines the following functions and objects:
returned.
.. function:: get_ident()
Return the 'thread identifier' of the current thread. This is a nonzero
integer. Its value has no direct meaning; it is intended as a magic cookie
to be used e.g. to index a dictionary of thread-specific data. Thread
identifiers may be recycled when a thread exits and another thread is
created.
.. versionadded:: 3.3
.. function:: enumerate()
Return a list of all :class:`Thread` objects currently alive. The list
@ -332,10 +343,10 @@ impossible to detect the termination of alien threads.
.. attribute:: ident
The 'thread identifier' of this thread or ``None`` if the thread has not
been started. This is a nonzero integer. See the
:func:`thread.get_ident()` function. Thread identifiers may be recycled
when a thread exits and another thread is created. The identifier is
available even after the thread has exited.
been started. This is a nonzero integer. See the :func:`get_ident()`
function. Thread identifiers may be recycled when a thread exits and
another thread is created. The identifier is available even after the
thread has exited.
.. method:: is_alive()

11
Lib/logging/__init__.py
View file

@ -41,10 +41,9 @@
codecs = None
try:
import _thread as thread
import threading
except ImportError: #pragma: no cover
thread = None
threading = None
__author__ = "Vinay Sajip <vinay_sajip@red-dove.com>"
__status__ = "production"
@ -199,7 +198,7 @@ def _checkLevel(level):
#the lock would already have been acquired - so we need an RLock.
#The same argument applies to Loggers and Manager.loggerDict.
#
if thread:
if threading:
_lock = threading.RLock()
else: #pragma: no cover
_lock = None
@ -278,8 +277,8 @@ def __init__(self, name, level, pathname, lineno,
self.created = ct
self.msecs = (ct - int(ct)) * 1000
self.relativeCreated = (self.created - _startTime) * 1000
if logThreads and thread:
self.thread = thread.get_ident()
if logThreads and threading:
self.thread = threading.get_ident()
self.threadName = threading.current_thread().name
else: # pragma: no cover
self.thread = None
@ -773,7 +772,7 @@ def createLock(self):
"""
Acquire a thread lock for serializing access to the underlying I/O.
"""
if thread:
if threading:
self.lock = threading.RLock()
else: #pragma: no cover
self.lock = None

2
Lib/reprlib.py
View file

@ -5,7 +5,7 @@
import builtins
from itertools import islice
try:
from _thread import get_ident
from threading import get_ident
except ImportError:
from _dummy_thread import get_ident

4
Lib/test/lock_tests.py
View file

@ -4,7 +4,7 @@
import sys
import time
from _thread import start_new_thread, get_ident, TIMEOUT_MAX
from _thread import start_new_thread, TIMEOUT_MAX
import threading
import unittest
@ -31,7 +31,7 @@ def __init__(self, f, n, wait_before_exit=False):
self.finished = []
self._can_exit = not wait_before_exit
def task():
tid = get_ident()
tid = threading.get_ident()
self.started.append(tid)
try:
f()

5
Lib/test/test_capi.py
View file

@ -190,18 +190,17 @@ def TestThreadState():
idents = []
def callback():
idents.append(_thread.get_ident())
idents.append(threading.get_ident())
_testcapi._test_thread_state(callback)
a = b = callback
time.sleep(1)
# Check our main thread is in the list exactly 3 times.
if idents.count(_thread.get_ident()) != 3:
if idents.count(threading.get_ident()) != 3:
raise support.TestFailed(
"Couldn't find main thread correctly in the list")
if threading:
import _thread
import time
TestThreadState()
t = threading.Thread(target=TestThreadState)

4
Lib/test/test_signal.py
View file

@ -557,7 +557,7 @@ def can_test_blocked_signals(self, skip):
def kill(self, signum):
if self.has_pthread_kill:
tid = threading.current_thread().ident
tid = threading.get_ident()
signal.pthread_kill(tid, signum)
else:
pid = os.getpid()
@ -589,7 +589,7 @@ def test_sigpending(self):
'need signal.pthread_kill()')
def test_pthread_kill(self):
signum = signal.SIGUSR1
current = threading.current_thread().ident
current = threading.get_ident()
old_handler = signal.signal(signum, self.handler)
self.addCleanup(signal.signal, signum, old_handler)

6
Lib/test/test_sys.py
View file

@ -343,7 +343,7 @@ def test_current_frames(self):
# Test sys._current_frames() in a WITH_THREADS build.
@test.support.reap_threads
def current_frames_with_threads(self):
import threading, _thread
import threading
import traceback
# Spawn a thread that blocks at a known place. Then the main
@ -357,7 +357,7 @@ def f123():
g456()
def g456():
thread_info.append(_thread.get_ident())
thread_info.append(threading.get_ident())
entered_g.set()
leave_g.wait()
@ -373,7 +373,7 @@ def g456():
d = sys._current_frames()
main_id = _thread.get_ident()
main_id = threading.get_ident()
self.assertIn(main_id, d)
self.assertIn(thread_id, d)

2
Lib/test/test_threaded_import.py
View file

@ -30,7 +30,7 @@ def task(N, done, done_tasks, errors):
except Exception as e:
errors.append(e.with_traceback(None))
finally:
done_tasks.append(thread.get_ident())
done_tasks.append(threading.get_ident())
finished = len(done_tasks) == N
if finished:
done.set()

4
Lib/test/test_threading.py
View file

@ -173,7 +173,7 @@ class AsyncExc(Exception):
exception = ctypes.py_object(AsyncExc)
# First check it works when setting the exception from the same thread.
tid = _thread.get_ident()
tid = threading.get_ident()
try:
result = set_async_exc(ctypes.c_long(tid), exception)
@ -202,7 +202,7 @@ class AsyncExc(Exception):
class Worker(threading.Thread):
def run(self):
self.id = _thread.get_ident()
self.id = threading.get_ident()
self.finished = False
try:

21
Lib/threading.py
View file

@ -24,7 +24,7 @@
# Rename some stuff so "from threading import *" is safe
_start_new_thread = _thread.start_new_thread
_allocate_lock = _thread.allocate_lock
_get_ident = _thread.get_ident
get_ident = _thread.get_ident
ThreadError = _thread.error
try:
_CRLock = _thread.RLock
@ -52,7 +52,7 @@ def _note(self, format, *args):
format = format % args
# Issue #4188: calling current_thread() can incur an infinite
# recursion if it has to create a DummyThread on the fly.
ident = _get_ident()
ident = get_ident()
try:
name = _active[ident].name
except KeyError:
@ -110,7 +110,7 @@ def __repr__(self):
self.__class__.__name__, owner, self._count)
def acquire(self, blocking=True, timeout=-1):
me = _get_ident()
me = get_ident()
if self._owner == me:
self._count = self._count + 1
if __debug__:
@ -130,7 +130,7 @@ def acquire(self, blocking=True, timeout=-1):
__enter__ = acquire
def release(self):
if self._owner != _get_ident():
if self._owner != get_ident():
raise RuntimeError("cannot release un-acquired lock")
self._count = count = self._count - 1
if not count:
@ -166,7 +166,7 @@ def _release_save(self):
return (count, owner)
def _is_owned(self):
return self._owner == _get_ident()
return self._owner == get_ident()
_PyRLock = _RLock
@ -714,7 +714,7 @@ def _bootstrap(self):
raise
def _set_ident(self):
self._ident = _get_ident()
self._ident = get_ident()
def _bootstrap_inner(self):
try:
@ -787,7 +787,7 @@ def _bootstrap_inner(self):
try:
# We don't call self._delete() because it also
# grabs _active_limbo_lock.
del _active[_get_ident()]
del _active[get_ident()]
except:
pass
@ -823,7 +823,7 @@ def _delete(self):
try:
with _active_limbo_lock:
del _active[_get_ident()]
del _active[get_ident()]
# There must not be any python code between the previous line
# and after the lock is released. Otherwise a tracing function
# could try to acquire the lock again in the same thread, (in
@ -1006,9 +1006,8 @@ def join(self, timeout=None):
def current_thread():
try:
return _active[_get_ident()]
return _active[get_ident()]
except KeyError:
##print "current_thread(): no current thread for", _get_ident()
return _DummyThread()
currentThread = current_thread
@ -1062,7 +1061,7 @@ def _after_fork():
if thread is current:
# There is only one active thread. We reset the ident to
# its new value since it can have changed.
ident = _get_ident()
ident = get_ident()
thread._ident = ident
# Any condition variables hanging off of the active thread may
# be in an invalid state, so we reinitialize them.

4
Misc/NEWS
View file

@ -177,6 +177,10 @@ Core and Builtins
Library
-------
- Issue #12028: Make threading._get_ident() public, rename it to
threading.get_ident() and document it. This function was used by
_thread.get_ident().
- Issue #12171: IncrementalEncoder.reset() of CJK codecs (multibytecodec) calls
encreset() instead of decreset().