| # Copyright (c) 2022 Meta |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| menu "Hash Function Support" |
| |
| config SYS_HASH_FUNC32 |
| bool "Hash function support" |
| help |
| Enable this option to support hash functions. |
| |
| if SYS_HASH_FUNC32 |
| |
| config SYS_HASH_FUNC32_DJB2 |
| bool "Daniel J. Bernstein's hash function (djb2)" |
| |
| config SYS_HASH_FUNC32_MURMUR3 |
| bool "Murmur3 hash function" |
| |
| choice SYS_HASH_FUNC32_CHOICE |
| prompt "Default system-wide 32-bit hash function" |
| default SYS_HASH_FUNC32_CHOICE_MURMUR3 |
| help |
| The default system-wide 32-bit hash function is sys_hash32(). |
| |
| config SYS_HASH_FUNC32_CHOICE_DJB2 |
| bool "Default 32-bit hash is djb2" |
| select SYS_HASH_FUNC32_DJB2 |
| |
| config SYS_HASH_FUNC32_CHOICE_MURMUR3 |
| bool "Default 32-bit hash is Murmur3" |
| select SYS_HASH_FUNC32_MURMUR3 |
| |
| config SYS_HASH_FUNC32_CHOICE_IDENTITY |
| bool "Default 32-bit hash is the identity" |
| help |
| This is the naive identity hash function. It only works for strings |
| either 1, 2, 4, or 8 bytes in length and so is suitable for scalar |
| values such as keys in a Hashmap. It is implemented as a static |
| inline function. |
| |
| endchoice # SYS_HASH_FUNC_CHOICE |
| |
| endif # SYS_HASH_FUNC |
| |
| endmenu |
