Function check_error

C/unix/libunixsocket.c:89–102

* @brief Checks return value for error. * * Every value returned by a syscall is passed to this function. It returns 0 * if the return value is ok or -1 if there was an error. * If the macro `VERBOSE` is defined, an appropriate message is printed to * STDERR. * * @param return_value A return value from a syscall. * * @retval 0 The syscall was successful. * @retval -1 There was an error.

 * @retval -1 There was an error.
 */
static inline signed int check_error(int return_value) {
#ifdef VERBOSE
    const char* errbuf;
#endif
    if (return_value < 0) {
#ifdef VERBOSE
        errbuf = strerror(errno);
        debug_write(errbuf);
#endif
        return -1;
    }

    return 0;
}

/**
 * @brief Create and connect a new UNIX STREAM socket.