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Annotation of src/usr.bin/mg/spawn.c, Revision 1.3

1.1       deraadt     1: /*
1.3     ! millert     2:  * Spawn.  Actually just suspends Mg.
        !             3:  * Assumes POSIX job control.
1.1       deraadt     4:  */
                      5: #include       "def.h"
                      6:
                      7: #include       <signal.h>
1.3     ! millert     8: #include       <termios.h>
1.1       deraadt     9:
                     10: /*
1.3     ! millert    11:  * This causes mg to send itself a stop signal.
        !            12:  * Assumes the parent shell supports POSIX job control.
        !            13:  * If the terminal supports an alternate screen, we will sitch to it.
1.1       deraadt    14:  */
1.3     ! millert    15: /* ARGSUSED */
1.1       deraadt    16: spawncli(f, n)
                     17: {
1.3     ! millert    18:        sigset_t oset;
        !            19:        int ttputc __P((int)); /* XXX */
1.1       deraadt    20:
1.3     ! millert    21:        /* Very similar to what vttidy() does. */
1.1       deraadt    22:        ttcolor(CTEXT);
                     23:        ttnowindow();
1.3     ! millert    24:        ttmove(nrow - 1, 0);
1.1       deraadt    25:        if (epresf != FALSE) {
                     26:                tteeol();
                     27:                epresf = FALSE;
                     28:        }
1.3     ! millert    29:        if (ttcooked() == FALSE)
        !            30:                return (FALSE);
        !            31:        tttidy();               /* Exit application mode and tidy. */
        !            32:        ttflush();
        !            33:        (void) sigprocmask(SIG_SETMASK, NULL, &oset);
1.1       deraadt    34:        (void) kill(0, SIGTSTP);
1.3     ! millert    35:        (void) sigprocmask(SIG_SETMASK, &oset, NULL);
        !            36:        ttreinit();
        !            37:        sgarbf = TRUE;          /* Force repaint.        */
        !            38:        return ttraw();
1.1       deraadt    39: }