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contrib/mg/spawn.c
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/* $OpenBSD: spawn.c,v 1.12 2015/03/19 21:22:15 bcallah 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. | |||||
*/ | |||||
/* ARGSUSED */ | |||||
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()); | |||||
} |