# Copyright 2023 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
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# ==============================================================================
"""Common constants used by proto splitter modules."""

# The splitter algorithm isn't extremely precise, so the max is set to a little
# less than 2GB.
#
# TODO: b/380463192 - Consider fixing the split algorithm to handle edge cases
# accurately and raising the max size to 2GB.
_MAX_SIZE = 1 << 30


def debug_set_max_size(value: int) -> None:
  """Sets the max size allowed for each proto chunk (used for debugging only).

  Args:
    value: int byte size
  """
  global _MAX_SIZE
  _MAX_SIZE = value


def max_size() -> int:
  """Returns the maximum size each proto chunk."""
  return _MAX_SIZE