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/* $NetBSD: gs.c,v 1.4 2013/12/01 02:34:54 christos Exp $ */
/*-
* Copyright (c) 2000
* Sven Verdoolaege. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/queue.h>
#include <bitstring.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "../common/common.h"
#ifdef USE_PERL_INTERP
#include "perl_api_extern.h"
#endif
__dead static void perr __P((char *, char *));
/*
* gs_init --
* Create and partially initialize the GS structure.
* PUBLIC: GS * gs_init __P((char*));
*/
GS *
gs_init(char *name)
{
GS *gp;
char *p;
/* Figure out what our name is. */
if ((p = strrchr(name, '/')) != NULL)
name = p + 1;
/* Allocate the global structure. */
CALLOC_NOMSG(NULL, gp, GS *, 1, sizeof(GS));
if (gp == NULL)
perr(name, NULL);
gp->progname = name;
/* Common global structure initialization. */
/* others will need to be copied from main.c */
TAILQ_INIT(&gp->dq);
TAILQ_INIT(&gp->hq);
gp->noprint = DEFAULT_NOPRINT;
/* Structures shared by screens so stored in the GS structure. */
TAILQ_INIT(&gp->frefq);
TAILQ_INIT(&gp->exfq);
LIST_INIT(&gp->seqq);
thread_init(gp);
return (gp);
}
/*
* gs_new_win
* Create new window
* PUBLIC: WIN * gs_new_win __P((GS *gp));
*/
WIN *
gs_new_win(GS *gp)
{
WIN *wp;
CALLOC_NOMSG(NULL, wp, WIN *, 1, sizeof(*wp));
if (!wp)
return NULL;
/* Common global structure initialization. */
LIST_INIT(&wp->ecq);
LIST_INSERT_HEAD(&wp->ecq, &wp->excmd, q);
TAILQ_INSERT_TAIL(&gp->dq, wp, q);
TAILQ_INIT(&wp->scrq);
TAILQ_INIT(&wp->dcb_store.textq);
LIST_INIT(&wp->cutq);
wp->gp = gp;
return wp;
}
/*
* win_end --
* Remove window.
*
* PUBLIC: int win_end __P((WIN *wp));
*/
int
win_end(WIN *wp)
{
SCR *sp;
TAILQ_REMOVE(&wp->gp->dq, wp, q);
if (wp->ccl_sp != NULL) {
(void)file_end(wp->ccl_sp, NULL, 1);
(void)screen_end(wp->ccl_sp);
}
while ((sp = TAILQ_FIRST(&wp->scrq)) != NULL)
(void)screen_end(sp);
/* Free key input queue. */
if (wp->i_event != NULL)
free(wp->i_event);
/* Free cut buffers. */
cut_close(wp);
/* Free default buffer storage. */
(void)text_lfree(&wp->dcb_store.textq);
#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY)
/* Free any temporary space. */
if (wp->tmp_bp != NULL)
free(wp->tmp_bp);
#endif
return 0;
}
/*
* gs_end --
* End the program, discarding screens and most of the global area.
*
* PUBLIC: void gs_end __P((GS *));
*/
void
gs_end(GS *gp)
{
MSGS *mp;
SCR *sp;
WIN *wp;
/* If there are any remaining screens, kill them off. */
while ((wp = TAILQ_FIRST(&gp->dq)) != NULL)
(void)win_end(wp);
while ((sp = TAILQ_FIRST(&gp->hq)) != NULL)
(void)screen_end(sp);
#ifdef HAVE_PERL_INTERP
perl_end(gp);
#endif
#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY)
{ FREF *frp;
/* Free FREF's. */
while ((frp = TAILQ_FIRST(&gp->frefq)) != NULL) {
TAILQ_REMOVE(&gp->frefq, frp, q);
if (frp->name != NULL)
free(frp->name);
if (frp->tname != NULL)
free(frp->tname);
free(frp);
}
}
/* Free map sequences. */
seq_close(gp);
/* Close message catalogs. */
msg_close(gp);
#endif
/* Ring the bell if scheduled. */
if (F_ISSET(gp, G_BELLSCHED))
(void)fprintf(stderr, "\07"); /* \a */
/*
* Flush any remaining messages. If a message is here, it's almost
* certainly the message about the event that killed us (although
* it's possible that the user is sourcing a file that exits from the
* editor).
*/
while ((mp = LIST_FIRST(&gp->msgq)) != NULL) {
(void)fprintf(stderr, "%s%.*s",
mp->mtype == M_ERR ? "ex/vi: " : "", (int)mp->len, mp->buf);
LIST_REMOVE(mp, q);
#if defined(DEBUG) || defined(PURIFY) || defined(LIBRARY)
free(mp->buf);
free(mp);
#endif
}
#if defined(TRACE)
/* Close tracing file descriptor. */
vtrace_end();
#endif
}
/*
* perr --
* Print system error.
*/
static void
perr(char *name, char *msg)
{
(void)fprintf(stderr, "%s:", name);
if (msg != NULL)
(void)fprintf(stderr, "%s:", msg);
(void)fprintf(stderr, "%s\n", strerror(errno));
exit(1);
}
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