Source code for lingvo.core.thread_local_utils

# Copyright 2018 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.
# ==============================================================================
"""Thread local utilities."""

import threading


class ThreadLocalStack(threading.local):

  def __init__(self):
    super().__init__()
    self.stack = []


class ThreadLocalDict(threading.local):

  def __init__(self):
    super().__init__()
    self.dict = {}