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Annotation of src/usr.bin/mg/spawn.c, Revision 1.4

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>
1.4     ! millert     9: #include       <term.h>
1.1       deraadt    10:
                     11: /*
1.3       millert    12:  * This causes mg to send itself a stop signal.
                     13:  * Assumes the parent shell supports POSIX job control.
                     14:  * If the terminal supports an alternate screen, we will sitch to it.
1.1       deraadt    15:  */
1.3       millert    16: /* ARGSUSED */
1.1       deraadt    17: spawncli(f, n)
                     18: {
1.3       millert    19:        sigset_t oset;
                     20:        int ttputc __P((int)); /* XXX */
1.1       deraadt    21:
1.3       millert    22:        /* Very similar to what vttidy() does. */
1.1       deraadt    23:        ttcolor(CTEXT);
                     24:        ttnowindow();
1.3       millert    25:        ttmove(nrow - 1, 0);
1.1       deraadt    26:        if (epresf != FALSE) {
                     27:                tteeol();
                     28:                epresf = FALSE;
                     29:        }
1.3       millert    30:        if (ttcooked() == FALSE)
                     31:                return (FALSE);
                     32:        tttidy();               /* Exit application mode and tidy. */
                     33:        ttflush();
                     34:        (void) sigprocmask(SIG_SETMASK, NULL, &oset);
1.1       deraadt    35:        (void) kill(0, SIGTSTP);
1.3       millert    36:        (void) sigprocmask(SIG_SETMASK, &oset, NULL);
                     37:        ttreinit();
                     38:        sgarbf = TRUE;          /* Force repaint.        */
                     39:        return ttraw();
1.1       deraadt    40: }