view src/core/ngx_murmurhash.c @ 6933:29e452c56125

Configure: fixed build with --with-stream. Some combinations of options might cause the builds with the --with-stream option to break due to invalid value of the STREAM_INCS make variable, e.g. auto/configure \ --with-stream \ --with-http_perl_module=dynamic \ --without-http_memcached_module \ --without-http_empty_gif_module \ --without-http_browser_module \ --without-http_upstream_hash_module \ --without-http_upstream_ip_hash_module \ --without-http_upstream_least_conn_module \ --without-http_upstream_keepalive_module \ --without-http_upstream_zone_module \ Explicit initialization of ngx_module_libs and ngx_module_link matches what we already do when processing mail modules, and is also required after the next change.
author Ruslan Ermilov <ru@nginx.com>
date Thu, 16 Mar 2017 20:38:26 +0300
parents 203eb026ec07
children f38647c651a8
line wrap: on
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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;
    case 2:
        h ^= data[1] << 8;
    case 1:
        h ^= data[0];
        h *= 0x5bd1e995;
    }

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

    return h;
}