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