1# Copyright 2022 Google LLC 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14"""Provides the `crc32` operation. 15 16This wraps the generated op and ensures that necessary shared libraries 17are loaded. 18""" 19 20from typing import Optional 21 22import tensorflow as tf 23 24from fcp.tensorflow import gen_crc32_py 25 26_crc32_so = tf.load_op_library( 27 tf.compat.v1.resource_loader.get_path_to_datafile('./_crc32_op.so')) 28 29 30def crc32(tensor: tf.Tensor, name: Optional[str] = None) -> tf.Operation: 31 """Computes the CRC32 checksum of a Tensor. 32 33 Args: 34 tensor: The input `Tensor`. 35 name: A name for the operation (optional). 36 37 Returns: 38 The created `Operation`. 39 """ 40 return gen_crc32_py.crc32(tensor, name=name) 41