def test_fd_count(self):
# We cannot test the absolute value of fd_count(): on old Linux
# kernel or glibc versions, os.urandom() keeps a FD open on
# /dev/urandom device and Python has 4 FD opens instead of 3.
start = support.fd_count()
fd = os.open(__file__, os.O_RDONLY)
try:
more = support.fd_count()
finally:
os.close(fd)
self.assertEqual(more - start, 1)
def test_fd_count(self):
# We cannot test the absolute value of fd_count(): on old Linux
# kernel or glibc versions, os.urandom() keeps a FD open on
# /dev/urandom device and Python has 4 FD opens instead of 3.
start = support.fd_count()
fd = os.open(__file__, os.O_RDONLY)
try:
more = support.fd_count()
finally:
os.close(fd)
self.assertEqual(more - start, 1)
def dash_R_cleanup(fs, ps, pic, zdc, abcs):
import gc, copyreg
import collections.abc
from weakref import WeakSet
# Restore some original values.
warnings.filters[:] = fs
copyreg.dispatch_table.clear()
copyreg.dispatch_table.update(ps)
sys.path_importer_cache.clear()
sys.path_importer_cache.update(pic)
try:
import zipimport
except ImportError:
pass # Run unmodified on platforms without zipimport support
else:
zipimport._zip_directory_cache.clear()
zipimport._zip_directory_cache.update(zdc)
# clear type cache
sys._clear_type_cache()
# Clear ABC registries, restoring previously saved ABC registries.
abs_classes = [
getattr(collections.abc, a) for a in collections.abc.__all__
]
abs_classes = filter(isabstract, abs_classes)
if 'typing' in sys.modules:
t = sys.modules['typing']
# These classes require special treatment because they do not appear
# in direct subclasses of collections.abc classes
abs_classes = list(abs_classes) + [
t.ChainMap, t.Counter, t.DefaultDict
]
for abc in abs_classes:
for obj in abc.__subclasses__() + [abc]:
obj._abc_registry = abcs.get(obj, WeakSet()).copy()
obj._abc_cache.clear()
obj._abc_negative_cache.clear()
clear_caches()
# Collect cyclic trash and read memory statistics immediately after.
func1 = sys.getallocatedblocks
func2 = sys.gettotalrefcount
gc.collect()
return func1(), func2(), support.fd_count()
def dash_R_cleanup(fs, ps, pic, zdc, abcs):
import gc, copyreg
import collections.abc
from weakref import WeakSet
# Restore some original values.
warnings.filters[:] = fs
copyreg.dispatch_table.clear()
copyreg.dispatch_table.update(ps)
sys.path_importer_cache.clear()
sys.path_importer_cache.update(pic)
try:
import zipimport
except ImportError:
pass # Run unmodified on platforms without zipimport support
else:
zipimport._zip_directory_cache.clear()
zipimport._zip_directory_cache.update(zdc)
# clear type cache
sys._clear_type_cache()
# Clear ABC registries, restoring previously saved ABC registries.
abs_classes = [getattr(collections.abc, a) for a in collections.abc.__all__]
abs_classes = filter(isabstract, abs_classes)
if 'typing' in sys.modules:
t = sys.modules['typing']
# These classes require special treatment because they do not appear
# in direct subclasses of collections.abc classes
abs_classes = list(abs_classes) + [t.ChainMap, t.Counter, t.DefaultDict]
for abc in abs_classes:
for obj in abc.__subclasses__() + [abc]:
obj._abc_registry = abcs.get(obj, WeakSet()).copy()
obj._abc_cache.clear()
obj._abc_negative_cache.clear()
clear_caches()
# Collect cyclic trash and read memory statistics immediately after.
func1 = sys.getallocatedblocks
func2 = sys.gettotalrefcount
gc.collect()
return func1(), func2(), support.fd_count()
def dash_R_cleanup(fs, ps, pic, zdc, abcs):
import gc, copyreg
import collections.abc
# Restore some original values.
warnings.filters[:] = fs
copyreg.dispatch_table.clear()
copyreg.dispatch_table.update(ps)
sys.path_importer_cache.clear()
sys.path_importer_cache.update(pic)
try:
import zipimport
except ImportError:
pass # Run unmodified on platforms without zipimport support
else:
zipimport._zip_directory_cache.clear()
zipimport._zip_directory_cache.update(zdc)
# clear type cache
sys._clear_type_cache()
# Clear ABC registries, restoring previously saved ABC registries.
abs_classes = [
getattr(collections.abc, a) for a in collections.abc.__all__
]
abs_classes = filter(isabstract, abs_classes)
for abc in abs_classes:
for obj in abc.__subclasses__() + [abc]:
for ref in abcs.get(obj, set()):
if ref() is not None:
obj.register(ref())
obj._abc_caches_clear()
clear_caches()
# Collect cyclic trash and read memory statistics immediately after.
func1 = sys.getallocatedblocks
func2 = sys.gettotalrefcount
gc.collect()
return func1(), func2(), support.fd_count()
def dash_R_cleanup(fs, ps, pic, zdc, abcs):
import gc, copyreg
import collections.abc
# Restore some original values.
warnings.filters[:] = fs
copyreg.dispatch_table.clear()
copyreg.dispatch_table.update(ps)
sys.path_importer_cache.clear()
sys.path_importer_cache.update(pic)
try:
import zipimport
except ImportError:
pass # Run unmodified on platforms without zipimport support
else:
zipimport._zip_directory_cache.clear()
zipimport._zip_directory_cache.update(zdc)
# clear type cache
sys._clear_type_cache()
# Clear ABC registries, restoring previously saved ABC registries.
abs_classes = [getattr(collections.abc, a) for a in collections.abc.__all__]
abs_classes = filter(isabstract, abs_classes)
for abc in abs_classes:
for obj in abc.__subclasses__() + [abc]:
for ref in abcs.get(obj, set()):
if ref() is not None:
obj.register(ref())
obj._abc_caches_clear()
clear_caches()
# Collect cyclic trash and read memory statistics immediately after.
func1 = sys.getallocatedblocks
func2 = sys.gettotalrefcount
gc.collect()
return func1(), func2(), support.fd_count()
