Function sentinelCheckCreateInstanceErrors

app/redis-6.2.6/src/sentinel.c:1748–1770

Generalise handling create instance error. Use SRI_MASTER, SRI_SLAVE or * SRI_SENTINEL as a role value. */

/* Generalise handling create instance error. Use SRI_MASTER, SRI_SLAVE or
 * SRI_SENTINEL as a role value. */
const char *sentinelCheckCreateInstanceErrors(int role) {
    switch(errno) {
    case EBUSY:
        switch (role) {
        case SRI_MASTER:
            return "Duplicate master name.";
        case SRI_SLAVE:
            return "Duplicate hostname and port for replica.";
        case SRI_SENTINEL:
            return "Duplicate runid for sentinel.";
        default:
            serverAssert(0);
            break;
        }
        break;
    case ENOENT:
        return "Can't resolve instance hostname.";
    case EINVAL:
        return "Invalid port number.";
    default:
        return "Unknown Error for creating instances.";
    }
}

/* init function for server.sentinel_config */
void initializeSentinelConfig() {