96 lines
1.7 KiB
C
96 lines
1.7 KiB
C
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/* $NetBSD: ip_screen.c,v 1.1.1.2 2008/05/18 14:31:24 aymeric Exp $ */
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/*-
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* Copyright (c) 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*/
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#include "config.h"
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#ifndef lint
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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";
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <bitstring.h>
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#include <stdio.h>
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#include "../common/common.h"
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#include "../ipc/ip.h"
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#include "extern.h"
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/*
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* ip_screen --
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* Initialize/shutdown the IP screen.
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*
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* PUBLIC: int ip_screen __P((SCR *, u_int32_t));
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*/
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int
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ip_screen(SCR *sp, u_int32_t flags)
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{
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GS *gp;
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IP_PRIVATE *ipp;
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gp = sp->gp;
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ipp = IPP(sp);
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/* See if the current information is incorrect. */
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if (F_ISSET(gp, G_SRESTART)) {
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if (ip_quit(sp->wp))
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return (1);
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F_CLR(gp, G_SRESTART);
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}
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/* See if we're already in the right mode. */
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if (LF_ISSET(SC_EX) && F_ISSET(sp, SC_SCR_EX) ||
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LF_ISSET(SC_VI) && F_ISSET(sp, SC_SCR_VI))
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return (0);
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/* Ex isn't possible if there is no terminal. */
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if (LF_ISSET(SC_EX) && ipp->t_fd == -1)
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return (1);
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if (F_ISSET(sp, SC_SCR_EX))
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F_CLR(sp, SC_SCR_EX);
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if (F_ISSET(sp, SC_SCR_VI))
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F_CLR(sp, SC_SCR_VI);
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if (LF_ISSET(SC_EX)) {
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F_SET(ipp, IP_IN_EX);
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} else {
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/* Initialize terminal based information. */
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if (ip_term_init(sp))
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return (1);
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F_CLR(ipp, IP_IN_EX);
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F_SET(ipp, IP_SCR_VI_INIT);
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}
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return (0);
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}
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/*
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* ip_quit --
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* Shutdown the screens.
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*
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* PUBLIC: int ip_quit __P((WIN *));
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*/
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int
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ip_quit(WIN *wp)
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{
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IP_PRIVATE *ipp;
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int rval;
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/* Clean up the terminal mappings. */
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rval = ip_term_end(wp->gp);
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ipp = WIPP(wp);
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F_CLR(ipp, IP_SCR_VI_INIT);
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return (rval);
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}
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