Function ap_mutex_register

server/util_mutex.c:254–277

}

AP_DECLARE(apr_status_t) ap_mutex_register(apr_pool_t *pconf,
                                           const char *type,
                                           const char *default_dir,
                                           apr_lockmech_e default_mech,
                                           apr_int32_t options)
{
    mutex_cfg_t *mxcfg = apr_pcalloc(pconf, sizeof *mxcfg);

    if ((options & ~(AP_MUTEX_ALLOW_NONE | AP_MUTEX_DEFAULT_NONE))) {
        return APR_EINVAL;
    }

    ap_mutex_init(pconf); /* in case this mod's pre-config ran before core's */

    mxcfg->options = options;
    if (options & AP_MUTEX_DEFAULT_NONE) {
        mxcfg->none = 1;
    }
    mxcfg->dir = default_dir; /* usually NULL */
    mxcfg->mech = default_mech; /* usually APR_LOCK_DEFAULT */
    apr_hash_set(mxcfg_by_type, type, APR_HASH_KEY_STRING, mxcfg);

    return APR_SUCCESS;
}

static int mutex_needs_file(apr_lockmech_e mech)
{