mirror of
https://github.com/zebrajr/pytorch.git
synced 2025-12-07 12:21:27 +01:00
8286ce1e3a
Summary: Closes https://github.com/caffe2/caffe2/pull/1260 Differential Revision: D5906739 Pulled By: Yangqing fbshipit-source-id: e482ba9ba60b5337d9165f28f7ec68d4518a0902
66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
# Copyright (c) 2016-present, Facebook, Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
##############################################################################
|
|
|
|
## @package dyndep
|
|
# Module caffe2.python.dyndep
|
|
from __future__ import absolute_import
|
|
from __future__ import division
|
|
from __future__ import print_function
|
|
from __future__ import unicode_literals
|
|
|
|
import ctypes
|
|
import os
|
|
|
|
from caffe2.python import core, extension_loader
|
|
|
|
|
|
def InitOpsLibrary(name):
|
|
"""Loads a dynamic library that contains custom operators into Caffe2.
|
|
|
|
Since Caffe2 uses static variable registration, you can optionally load a
|
|
separate .so file that contains custom operators and registers that into
|
|
the caffe2 core binary. In C++, this is usually done by either declaring
|
|
dependency during compilation time, or via dynload. This allows us to do
|
|
registration similarly on the Python side.
|
|
|
|
Args:
|
|
name: a name that ends in .so, such as "my_custom_op.so". Otherwise,
|
|
the command will simply be ignored.
|
|
Returns:
|
|
None
|
|
"""
|
|
if not os.path.exists(name):
|
|
# Note(jiayq): if the name does not exist, instead of immediately
|
|
# failing we will simply print a warning, deferring failure to the
|
|
# time when an actual call is made.
|
|
print('Ignoring {} as it is not a valid file.'.format(name))
|
|
return
|
|
_init_impl(name)
|
|
|
|
|
|
_IMPORTED_DYNDEPS = set()
|
|
|
|
|
|
def GetImportedOpsLibraries():
|
|
return _IMPORTED_DYNDEPS
|
|
|
|
|
|
def _init_impl(path):
|
|
_IMPORTED_DYNDEPS.add(path)
|
|
with extension_loader.DlopenGuard():
|
|
ctypes.CDLL(path)
|
|
# reinitialize available ops
|
|
core.RefreshRegisteredOperators()
|