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/* $OpenBSD: spawn.c,v 1.13 2023/03/08 04:43:11 guenther Exp $ */
/* This file is in the public domain. */
/*
* Spawn. Actually just suspends Mg.
* Assumes POSIX job control.
*/
#include <sys/queue.h>
#include <signal.h>
#include <stdio.h>
#include <term.h>
#include <termios.h>
#include "def.h"
/*
* This causes mg to send itself a stop signal. It assumes the parent
* shell supports POSIX job control. If the terminal supports an alternate
* screen, we will switch to it.
*/
int
spawncli(int f, int n)
{
sigset_t oset;
/* Very similar to what vttidy() does. */
ttcolor(CTEXT);
ttnowindow();
ttmove(nrow - 1, 0);
if (epresf != FALSE) {
tteeol();
epresf = FALSE;
}
if (ttcooked() == FALSE)
return (FALSE);
/* Exit application mode and tidy. */
tttidy();
ttflush();
(void)sigprocmask(SIG_SETMASK, NULL, &oset);
(void)kill(0, SIGTSTP);
(void)sigprocmask(SIG_SETMASK, &oset, NULL);
ttreinit();
/* Force repaint. */
sgarbf = TRUE;
return (ttraw());
}
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