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40 lines
760 B
C
40 lines
760 B
C
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/*
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* mui_utils.c
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*
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* Copyright (C) 2023 Michel Pollet <buserror@gmail.com>
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <time.h>
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#include "mui.h"
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mui_time_t
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mui_get_time()
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{
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struct timespec tim;
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clock_gettime(CLOCK_MONOTONIC_RAW, &tim);
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uint64_t time = ((uint64_t)tim.tv_sec) * (1000000 / MUI_TIME_RES) +
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tim.tv_nsec / (1000 * MUI_TIME_RES);
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return time;
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}
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uint32_t
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mui_hash(
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const char * inString )
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{
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if (!inString)
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return 0;
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/* Described http://papa.bretmulvey.com/post/124027987928/hash-functions */
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const uint32_t p = 16777619;
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uint32_t hash = 0x811c9dc5;
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while (*inString)
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hash = (hash ^ (*inString++)) * p;
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hash += hash << 13;
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hash ^= hash >> 7;
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hash += hash << 3;
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hash ^= hash >> 17;
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hash += hash << 5;
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return hash;
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}
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