58 lines
2 KiB
Python
58 lines
2 KiB
Python
# Copyright 2016 The TensorFlow Authors. All Rights Reserved.
|
|
#
|
|
# 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.
|
|
# ==============================================================================
|
|
"""Utilities for loading op libraries.
|
|
|
|
@@load_op_library
|
|
"""
|
|
from __future__ import absolute_import
|
|
from __future__ import division
|
|
from __future__ import print_function
|
|
|
|
import os
|
|
import re
|
|
|
|
from tensorflow.python.framework import load_library
|
|
from tensorflow.python.platform import resource_loader
|
|
|
|
|
|
def load_op_library(path):
|
|
"""Loads a contrib op library from the given path.
|
|
|
|
NOTE(mrry): On Windows, we currently assume that some contrib op
|
|
libraries are statically linked into the main TensorFlow Python
|
|
extension DLL - use dynamically linked ops if the .so is present.
|
|
|
|
Args:
|
|
path: An absolute path to a shared object file.
|
|
|
|
Returns:
|
|
A Python module containing the Python wrappers for Ops defined in the
|
|
plugin.
|
|
"""
|
|
if os.name == 'nt':
|
|
# To avoid making every user_ops aware of windows, re-write
|
|
# the file extension from .so to .dll if .so file doesn't exist.
|
|
if not os.path.exists(path):
|
|
path = re.sub(r'\.so$', '.dll', path)
|
|
|
|
# Currently we have only some user_ops as dlls on windows - don't try
|
|
# to load them if the dll is not found.
|
|
# TODO(mrry): Once we have all of them this check should be removed.
|
|
if not os.path.exists(path):
|
|
return None
|
|
path = resource_loader.get_path_to_datafile(path)
|
|
ret = load_library.load_op_library(path)
|
|
assert ret, 'Could not load %s' % path
|
|
return ret
|