示例#1
0
static char *
readline_until_enter_or_signal(const char *prompt, int *signal)
{
    char * not_done_reading = "";
    fd_set selectset;

    *signal = 0;
#ifdef HAVE_RL_CATCH_SIGNAL
    rl_catch_signals = 0;
#endif

    rl_callback_handler_install (prompt, rlhandler);
    FD_ZERO(&selectset);

    completed_input_string = not_done_reading;

    while (completed_input_string == not_done_reading) {
        int has_input = 0, err = 0;

        while (!has_input)
        {               struct timeval timeout = {0, 100000}; /* 0.1 seconds */

            /* [Bug #1552726] Only limit the pause if an input hook has been
               defined.  */
            struct timeval *timeoutp = NULL;
            if (PyOS_InputHook)
                timeoutp = &timeout;
#ifdef HAVE_RL_RESIZE_TERMINAL
            /* Update readline's view of the window size after SIGWINCH */
            if (sigwinch_received) {
                sigwinch_received = 0;
                rl_resize_terminal();
            }
#endif
            FD_SET(fileno(rl_instream), &selectset);
            /* select resets selectset if no input was available */
            has_input = select(fileno(rl_instream) + 1, &selectset,
                               NULL, NULL, timeoutp);
            err = errno;
            if(PyOS_InputHook) PyOS_InputHook();
        }

        if (has_input > 0) {
            rl_callback_read_char();
        }
        else if (err == EINTR) {
            int s;
            PyEval_RestoreThread(_PyOS_ReadlineTState);
            s = PyErr_CheckSignals();
            PyEval_SaveThread();
            if (s < 0) {
                rl_free_line_state();
#if defined(RL_READLINE_VERSION) && RL_READLINE_VERSION >= 0x0700
                rl_callback_sigcleanup();
#endif
                rl_cleanup_after_signal();
                rl_callback_handler_remove();
                *signal = 1;
                completed_input_string = NULL;
            }
        }
    }

    return completed_input_string;
}
示例#2
0
/**
 * nmc_cleanup_readline:
 *
 * Cleanup readline when nmcli is terminated with a signal.
 * It makes sure the terminal is not garbled.
 */
void
nmc_cleanup_readline (void)
{
	rl_free_line_state ();
	rl_cleanup_after_signal ();
}