Workaround for "configuration file test failed" under OpenVZ. If nginx was used under OpenVZ and a container with nginx was suspended and resumed, configuration tests started to fail because of EADDRINUSE returned from listen() instead of bind(): # nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: [emerg] listen() to 0.0.0.0:80, backlog 511 failed (98: Address already in use) nginx: configuration file /etc/nginx/nginx.conf test failed With this change EADDRINUSE errors returned by listen() are handled similarly to errors returned by bind(), and configuration tests work fine in the same environment: # nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful More details about OpenVZ suspend/resume bug: https://bugzilla.openvz.org/show_bug.cgi?id=2470

/*
 * 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;
}