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/*-
* Copyright (c) 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "$Id: ip_screen.c,v 8.8 2001/06/25 15:19:24 skimo Exp $ (Berkeley) $Date: 2001/06/25 15:19:24 $";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <bitstring.h>
#include <stdio.h>
#include "../common/common.h"
#include "../ipc/ip.h"
#include "extern.h"
/*
* ip_screen --
* Initialize/shutdown the IP screen.
*
* PUBLIC: int ip_screen __P((SCR *, u_int32_t));
*/
int
ip_screen(SCR *sp, u_int32_t flags)
{
GS *gp;
IP_PRIVATE *ipp;
gp = sp->gp;
ipp = IPP(sp);
/* See if the current information is incorrect. */
if (F_ISSET(gp, G_SRESTART)) {
if (ip_quit(sp->wp))
return (1);
F_CLR(gp, G_SRESTART);
}
/* See if we're already in the right mode. */
if (LF_ISSET(SC_EX) && F_ISSET(sp, SC_SCR_EX) ||
LF_ISSET(SC_VI) && F_ISSET(sp, SC_SCR_VI))
return (0);
/* Ex isn't possible if there is no terminal. */
if (LF_ISSET(SC_EX) && ipp->t_fd == -1)
return (1);
if (F_ISSET(sp, SC_SCR_EX))
F_CLR(sp, SC_SCR_EX);
if (F_ISSET(sp, SC_SCR_VI))
F_CLR(sp, SC_SCR_VI);
if (LF_ISSET(SC_EX)) {
F_SET(ipp, IP_IN_EX);
} else {
/* Initialize terminal based information. */
if (ip_term_init(sp))
return (1);
F_CLR(ipp, IP_IN_EX);
F_SET(ipp, IP_SCR_VI_INIT);
}
return (0);
}
/*
* ip_quit --
* Shutdown the screens.
*
* PUBLIC: int ip_quit __P((WIN *));
*/
int
ip_quit(WIN *wp)
{
IP_PRIVATE *ipp;
int rval;
/* Clean up the terminal mappings. */
rval = ip_term_end(wp->gp);
ipp = WIPP(wp);
F_CLR(ipp, IP_SCR_VI_INIT);
return (rval);
}
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