[unix-history] / usr / src / usr.bin / window / wwsuspend.c

#ifndef lint
static	char *sccsid = "@(#)wwsuspend.c	3.2 83/08/15";
#endif

#include "ww.h"
#include "tt.h"
#include <signal.h>

#define mask(s)	(1 << (s) - 1)

wwsuspend()
{
	int oldmask;

	oldmask = sigblock(mask(SIGTSTP));
	wwend();
	(void) sigsetmask(sigblock(0) & ~mask(SIGTSTP));
	(void) kill(0, SIGTSTP);
	(void) sigblock(mask(SIGTSTP));
	(void) wwsettty(0, &wwnewtty);
	(*tt.tt_init)();
	wwredraw();
	(void) sigsetmask(oldmask);
}
Commit	Line	Data
bfbd46c7	1	#ifndef lint
e908bfac	2	static char *sccsid = "@(#)wwsuspend.c 3.2 83/08/15";
bfbd46c7 EW	3	#endif
	4
	5	#include "ww.h"
e908bfac	6	#include "tt.h"
bfbd46c7 EW	7	#include <signal.h>
bfbd46c7 EW	8
96f35979	9	#define mask(s) (1 << (s) - 1)
bfbd46c7 EW	10
	11	wwsuspend()
	12	{
	13	int oldmask;
	14
96f35979	15	oldmask = sigblock(mask(SIGTSTP));
bfbd46c7	16	wwend();
96f35979 EW	17	(void) sigsetmask(sigblock(0) & ~mask(SIGTSTP));
	18	(void) kill(0, SIGTSTP);
	19	(void) sigblock(mask(SIGTSTP));
	20	(void) wwsettty(0, &wwnewtty);
e908bfac	21	(*tt.tt_init)();
96f35979 EW	22	wwredraw();
96f35979 EW	23	(void) sigsetmask(oldmask);
bfbd46c7	24	}