usr.bin/vi/gs.h

/*-
 * Copyright (c) 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)gs.h        8.26 (Berkeley) 1/9/94
 */

struct _gs {
        CIRCLEQ_HEAD(_dqh, _scr) dq;    /* Displayed screens. */
        CIRCLEQ_HEAD(_hqh, _scr) hq;    /* Hidden screens. */

        mode_t   origmode;              /* Original terminal mode. */
        struct termios
                 original_termios;      /* Original terminal values. */
        struct termios
                 s5_curses_botch;       /* System V curses workaround. */

        MSGH     msgq;                  /* User message list. */

        char    *tmp_bp;                /* Temporary buffer. */
        size_t   tmp_blen;              /* Size of temporary buffer. */

#ifdef DEBUG
        FILE    *tracefp;               /* Trace file pointer. */
#endif

/* INFORMATION SHARED BY ALL SCREENS. */
        IBUF    *tty;                   /* Key input buffer. */

        CB      *dcbp;                  /* Default cut buffer pointer. */
        CB      *dcb_store;             /* Default cut buffer storage. */
        LIST_HEAD(_cuth, _cb) cutq;     /* Linked list of cut buffers. */

#define MAX_BIT_SEQ     128             /* Max + 1 fast check character. */
        LIST_HEAD(_seqh, _seq) seqq;    /* Linked list of maps, abbrevs. */
        bitstr_t bit_decl(seqb, MAX_BIT_SEQ);

#define term_key_val(sp, ch)                                            \
        ((ch) <= MAX_FAST_KEY ? sp->gp->special_key[ch] :               \
            (ch) > sp->gp->max_special ? 0 : __term_key_val(sp, ch))
#define MAX_FAST_KEY    255             /* Max + 1 fast check character.*/
        CHAR_T   max_special;           /* Max special character. */
        u_char  *special_key;           /* Fast lookup table. */
        CHNAME  const *cname;           /* Display names of ASCII characters. */

#define G_ABBREV        0x00001         /* If have abbreviations. */
#define G_BELLSCHED     0x00002         /* Bell scheduled. */
#define G_CURSES_INIT   0x00004         /* Curses: initialized. */
#define G_CURSES_S5CB   0x00008         /* Curses: s5_curses_botch set. */
#define G_ISFROMTTY     0x00010         /* Reading from a tty. */
#define G_RECOVER_SET   0x00020         /* Recover system initialized. */
#define G_SETMODE       0x00040         /* Tty mode changed. */
#define G_SIGALRM       0x00080         /* SIGALRM arrived. */
#define G_SIGHUP        0x00100         /* SIGHUP arrived. */
#define G_SIGTERM       0x00200         /* SIGTERM arrived. */
#define G_SIGWINCH      0x00400         /* SIGWINCH arrived. */
#define G_SLEEPING      0x00800         /* Asleep (die on signal). */
#define G_SNAPSHOT      0x01000         /* Always snapshot files. */
#define G_TMP_INUSE     0x02000         /* Temporary buffer in use. */
        u_int    flags;
};

extern GS *__global_list;               /* List of screens. */