view src/core/ngx_murmurhash.c @ 7315:e7b2b907c0f8

Events: moved sockets cloning to ngx_event_init_conf(). Previously, listenings sockets were not cloned if the worker_processes directive was specified after "listen ... reuseport". This also simplifies upcoming configuration check on the number of worker connections, as it needs to know the number of listening sockets before cloning.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 12 Jul 2018 19:50:02 +0300
parents f38647c651a8
children
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/*
 * Copyright (C) Austin Appleby
 */


#include <ngx_config.h>
#include <ngx_core.h>


uint32_t
ngx_murmur_hash2(u_char *data, size_t len)
{
    uint32_t  h, k;

    h = 0 ^ len;

    while (len >= 4) {
        k  = data[0];
        k |= data[1] << 8;
        k |= data[2] << 16;
        k |= data[3] << 24;

        k *= 0x5bd1e995;
        k ^= k >> 24;
        k *= 0x5bd1e995;

        h *= 0x5bd1e995;
        h ^= k;

        data += 4;
        len -= 4;
    }

    switch (len) {
    case 3:
        h ^= data[2] << 16;
        /* fall through */
    case 2:
        h ^= data[1] << 8;
        /* fall through */
    case 1:
        h ^= data[0];
        h *= 0x5bd1e995;
    }

    h ^= h >> 13;
    h *= 0x5bd1e995;
    h ^= h >> 15;

    return h;
}