mirror of
https://github.com/zebrajr/pytorch.git
synced 2025-12-06 12:20:52 +01:00
7153594d7b
Summary: If exception is getting thrown inside of the namescope it won't be reset to it's previous value. This diff is changing this behavior to expected one. Reviewed By: kittipatv Differential Revision: D4928621 fbshipit-source-id: 1d3579f2093ca60901b0d37ae3f2108deb2333ea
73 lines
2.1 KiB
Python
73 lines
2.1 KiB
Python
## @package scope
|
|
# Module caffe2.python.scope
|
|
from __future__ import absolute_import
|
|
from __future__ import division
|
|
from __future__ import print_function
|
|
from __future__ import unicode_literals
|
|
|
|
import contextlib
|
|
import threading
|
|
|
|
from caffe2.proto import caffe2_pb2
|
|
|
|
# Python 2 and 3 compatibility: test if basestring exists
|
|
try:
|
|
basestring # NOQA
|
|
except NameError:
|
|
# This is python3 so we define basestring.
|
|
basestring = str
|
|
|
|
# The name scope and device scope when creating a new operator.
|
|
_NAMESCOPE_SEPARATOR = '/'
|
|
|
|
_threadlocal_scope = threading.local()
|
|
|
|
|
|
def CurrentNameScope():
|
|
global _threadlocal_scope
|
|
if not hasattr(_threadlocal_scope, "namescope"):
|
|
_threadlocal_scope.namescope = ''
|
|
return _threadlocal_scope.namescope
|
|
|
|
|
|
def CurrentDeviceScope():
|
|
global _threadlocal_scope
|
|
if not hasattr(_threadlocal_scope, "devicescope"):
|
|
_threadlocal_scope.devicescope = None
|
|
return _threadlocal_scope.devicescope
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def NameScope(prefix, reset=False):
|
|
global _threadlocal_scope
|
|
assert isinstance(prefix, basestring), \
|
|
"NameScope takes in a string as its argument."
|
|
old_scope = CurrentNameScope()
|
|
prefix = prefix + _NAMESCOPE_SEPARATOR if prefix is not '' else ''
|
|
if reset:
|
|
_threadlocal_scope.namescope = prefix
|
|
else:
|
|
_threadlocal_scope.namescope = _threadlocal_scope.namescope + prefix
|
|
|
|
try:
|
|
yield
|
|
finally:
|
|
assert _threadlocal_scope.namescope.endswith(prefix), \
|
|
"The namescope variable is changed from outside NameScope() calls."
|
|
_threadlocal_scope.namescope = old_scope
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def DeviceScope(scope):
|
|
assert isinstance(scope, caffe2_pb2.DeviceOption), \
|
|
"DeviceScope takes in a caffe2_pb2.DeviceOption as its argument."
|
|
global _threadlocal_scope
|
|
old_scope = CurrentDeviceScope()
|
|
_threadlocal_scope.devicescope = scope
|
|
try:
|
|
yield
|
|
finally:
|
|
assert _threadlocal_scope.devicescope == scope, \
|
|
"The device scope is changed from outside DeviceScope() calls."
|
|
_threadlocal_scope.devicescope = old_scope
|