本文整理匯總了Python中gc.isenabled方法的典型用法代碼示例。如果您正苦於以下問題:Python gc.isenabled方法的具體用法?Python gc.isenabled怎麽用?Python gc.isenabled使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類gc
的用法示例。
在下文中一共展示了gc.isenabled方法的15個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: timeit
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def timeit(self, number=default_number):
"""Time 'number' executions of the main statement.
To be precise, this executes the setup statement once, and
then returns the time it takes to execute the main statement
a number of times, as a float measured in seconds. The
argument is the number of times through the loop, defaulting
to one million. The main statement, the setup statement and
the timer function to be used are passed to the constructor.
"""
it = itertools.repeat(None, number)
gcold = gc.isenabled()
gc.disable()
try:
timing = self.inner(it, self.timer)
finally:
if gcold:
gc.enable()
return timing
示例2: timeit
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def timeit(self, number=default_number):
"""Time 'number' executions of the main statement.
To be precise, this executes the setup statement once, and
then returns the time it takes to execute the main statement
a number of times, as a float measured in seconds. The
argument is the number of times through the loop, defaulting
to one million. The main statement, the setup statement and
the timer function to be used are passed to the constructor.
"""
if itertools:
it = itertools.repeat(None, number)
else:
it = [None] * number
gcold = gc.isenabled()
gc.disable()
timing = self.inner(it, self.timer)
if gcold:
gc.enable()
return timing
示例3: gc_state
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def gc_state(state):
""" Context manager to set state of garbage collector to `state`
Parameters
----------
state : bool
True for gc enabled, False for disabled
Examples
--------
>>> with gc_state(False):
... assert not gc.isenabled()
>>> with gc_state(True):
... assert gc.isenabled()
"""
orig_state = gc.isenabled()
set_gc_state(state)
yield
set_gc_state(orig_state)
示例4: test_load_refcount
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_load_refcount():
# Check that objects returned by np.load are directly freed based on
# their refcount, rather than needing the gc to collect them.
f = BytesIO()
np.savez(f, [1, 2, 3])
f.seek(0)
assert_(gc.isenabled())
gc.disable()
try:
gc.collect()
np.load(f)
# gc.collect returns the number of unreachable objects in cycles that
# were found -- we are checking that no cycles were created by np.load
n_objects_in_cycles = gc.collect()
finally:
gc.enable()
assert_equal(n_objects_in_cycles, 0)
示例5: timeit
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def timeit(self, number=default_number):
"""Time 'number' executions of the main statement.
To be precise, this executes the setup statement once, and
then returns the time it takes to execute the main statement
a number of times, as a float measured in seconds. The
argument is the number of times through the loop, defaulting
to one million. The main statement, the setup statement and
the timer function to be used are passed to the constructor.
"""
if itertools:
it = itertools.repeat(None, number)
else:
it = [None] * number
gcold = gc.isenabled()
gc.disable()
try:
timing = self.inner(it, self.timer)
finally:
if gcold:
gc.enable()
return timing
示例6: test_free_from_gc
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_free_from_gc(self):
# Check that freeing of blocks by the garbage collector doesn't deadlock
# (issue #12352).
# Make sure the GC is enabled, and set lower collection thresholds to
# make collections more frequent (and increase the probability of
# deadlock).
if not gc.isenabled():
gc.enable()
self.addCleanup(gc.disable)
thresholds = gc.get_threshold()
self.addCleanup(gc.set_threshold, *thresholds)
gc.set_threshold(10)
# perform numerous block allocations, with cyclic references to make
# sure objects are collected asynchronously by the gc
for i in range(5000):
a = multiprocessing.heap.BufferWrapper(1)
b = multiprocessing.heap.BufferWrapper(1)
# circular references
a.buddy = b
b.buddy = a
#
#
#
示例7: test_main
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_main():
enabled = gc.isenabled()
gc.disable()
assert not gc.isenabled()
debug = gc.get_debug()
gc.set_debug(debug & ~gc.DEBUG_LEAK) # this test is supposed to leak
try:
gc.collect() # Delete 2nd generation garbage
run_unittest(GCTests, GCTogglingTests)
finally:
gc.set_debug(debug)
# test gc.enable() even if GC is disabled by default
if verbose:
print "restoring automatic collection"
# make sure to always test gc.enable()
gc.enable()
assert gc.isenabled()
if not enabled:
gc.disable()
示例8: test_gc_state
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_gc_state():
# Test gc_state context manager
gc_status = gc.isenabled()
try:
for pre_state in (True, False):
set_gc_state(pre_state)
for with_state in (True, False):
# Check the gc state is with_state in with block
with gc_state(with_state):
assert_equal(gc.isenabled(), with_state)
# And returns to previous state outside block
assert_equal(gc.isenabled(), pre_state)
# Even if the gc state is set explicitly within the block
with gc_state(with_state):
assert_equal(gc.isenabled(), with_state)
set_gc_state(not with_state)
assert_equal(gc.isenabled(), pre_state)
finally:
if gc_status:
gc.enable()
示例9: test_getWorkerArguments
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_getWorkerArguments(self):
"""
C{_getWorkerArguments} discards options like C{random} as they only
matter in the manager, and forwards options like C{recursionlimit} or
C{disablegc}.
"""
self.addCleanup(sys.setrecursionlimit, sys.getrecursionlimit())
if gc.isenabled():
self.addCleanup(gc.enable)
self.options.parseOptions(["--recursionlimit", "2000", "--random",
"4", "--disablegc"])
args = self.options._getWorkerArguments()
self.assertIn("--disablegc", args)
args.remove("--disablegc")
self.assertEqual(["--recursionlimit", "2000"], args)
示例10: setUp
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def setUp(self):
"""
Replace L{process} os, fcntl, sys, switchUID, fdesc and pty modules
with the mock class L{MockOS}.
"""
if gc.isenabled():
self.addCleanup(gc.enable)
else:
self.addCleanup(gc.disable)
self.mockos = MockOS()
self.mockos.euid = 1236
self.mockos.egid = 1234
self.patch(process, "os", self.mockos)
self.patch(process, "fcntl", self.mockos)
self.patch(process, "sys", self.mockos)
self.patch(process, "switchUID", self.mockos.switchUID)
self.patch(process, "fdesc", self.mockos)
self.patch(process.Process, "processReaderFactory", DumbProcessReader)
self.patch(process.Process, "processWriterFactory", DumbProcessWriter)
self.patch(process, "pty", self.mockos)
self.mocksig = MockSignal()
self.patch(process, "signal", self.mocksig)
示例11: test_mockFork
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_mockFork(self):
"""
Test a classic spawnProcess. Check the path of the client code:
fork, exec, exit.
"""
gc.enable()
cmd = b'/mock/ouch'
d = defer.Deferred()
p = TrivialProcessProtocol(d)
try:
reactor.spawnProcess(p, cmd, [b'ouch'], env=None,
usePTY=False)
except SystemError:
self.assertTrue(self.mockos.exited)
self.assertEqual(
self.mockos.actions, [("fork", False), "exec", ("exit", 1)])
else:
self.fail("Should not be here")
# It should leave the garbage collector disabled.
self.assertFalse(gc.isenabled())
示例12: test_get_stats
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def test_get_stats(self):
stats = gc.get_stats()
self.assertEqual(len(stats), 3)
for st in stats:
self.assertIsInstance(st, dict)
self.assertEqual(set(st),
{"collected", "collections", "uncollectable"})
self.assertGreaterEqual(st["collected"], 0)
self.assertGreaterEqual(st["collections"], 0)
self.assertGreaterEqual(st["uncollectable"], 0)
# Check that collection counts are incremented correctly
if gc.isenabled():
self.addCleanup(gc.enable)
gc.disable()
old = gc.get_stats()
gc.collect(0)
new = gc.get_stats()
self.assertEqual(new[0]["collections"], old[0]["collections"] + 1)
self.assertEqual(new[1]["collections"], old[1]["collections"])
self.assertEqual(new[2]["collections"], old[2]["collections"])
gc.collect(2)
new = gc.get_stats()
self.assertEqual(new[0]["collections"], old[0]["collections"] + 1)
self.assertEqual(new[1]["collections"], old[1]["collections"])
self.assertEqual(new[2]["collections"], old[2]["collections"] + 1)
示例13: _exitfunc
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def _exitfunc(cls):
# At shutdown invoke finalizers for which atexit is true.
# This is called once all other non-daemonic threads have been
# joined.
reenable_gc = False
try:
if cls._registry:
import gc
if gc.isenabled():
reenable_gc = True
gc.disable()
pending = None
while True:
if pending is None or finalize._dirty:
pending = cls._select_for_exit()
finalize._dirty = False
if not pending:
break
f = pending.pop()
try:
# gc is disabled, so (assuming no daemonic
# threads) the following is the only line in
# this function which might trigger creation
# of a new finalizer
f()
except Exception:
sys.excepthook(*sys.exc_info())
assert f not in cls._registry
finally:
# prevent any more finalizers from executing during shutdown
finalize._shutdown = True
if reenable_gc:
gc.enable()
示例14: disable_gc
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def disable_gc():
have_gc = gc.isenabled()
gc.disable()
try:
yield
finally:
if have_gc:
gc.enable()
示例15: set_gc_state
# 需要導入模塊: import gc [as 別名]
# 或者: from gc import isenabled [as 別名]
def set_gc_state(state):
""" Set status of garbage collector """
if gc.isenabled() == state:
return
if state:
gc.enable()
else:
gc.disable()