1 | #ifndef AWS_CHECKSUMS_CRC_H |
2 | #define AWS_CHECKSUMS_CRC_H |
3 | /* |
4 | * Copyright 2010-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved. |
5 | * |
6 | * Licensed under the Apache License, Version 2.0 (the "License"). |
7 | * You may not use this file except in compliance with the License. |
8 | * A copy of the License is located at |
9 | * |
10 | * http://aws.amazon.com/apache2.0 |
11 | * |
12 | * or in the "license" file accompanying this file. This file is distributed |
13 | * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
14 | * express or implied. See the License for the specific language governing |
15 | * permissions and limitations under the License. |
16 | */ |
17 | |
18 | #include <aws/checksums/exports.h> |
19 | #include <stdint.h> |
20 | |
21 | #ifdef __cplusplus |
22 | extern "C" { |
23 | #endif |
24 | |
25 | /** |
26 | * The entry point function to perform a CRC32 (Ethernet, gzip) computation. |
27 | * Selects a suitable implementation based on hardware capabilities. |
28 | * Pass 0 in the previousCrc32 parameter as an initial value unless continuing |
29 | * to update a running crc in a subsequent call. |
30 | */ |
31 | AWS_CHECKSUMS_API uint32_t aws_checksums_crc32(const uint8_t *input, int length, uint32_t previousCrc32); |
32 | |
33 | /** |
34 | * The entry point function to perform a Castagnoli CRC32c (iSCSI) computation. |
35 | * Selects a suitable implementation based on hardware capabilities. |
36 | * Pass 0 in the previousCrc32 parameter as an initial value unless continuing |
37 | * to update a running crc in a subsequent call. |
38 | */ |
39 | AWS_CHECKSUMS_API uint32_t aws_checksums_crc32c(const uint8_t *input, int length, uint32_t previousCrc32); |
40 | |
41 | #ifdef __cplusplus |
42 | } |
43 | #endif |
44 | |
45 | #endif /* AWS_CHECKSUMS_CRC_H */ |
46 | |