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Annotation of src/usr.bin/window/mloop.c, Revision 1.3

1.3     ! niklas      1: /*     $NetBSD: mloop.c,v 1.5 1996/02/08 20:45:03 mycroft Exp $        */
1.1       deraadt     2:
                      3: /*
                      4:  * Copyright (c) 1983, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to Berkeley by
                      8:  * Edward Wang at The University of California, Berkeley.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *     This product includes software developed by the University of
                     21:  *     California, Berkeley and its contributors.
                     22:  * 4. Neither the name of the University nor the names of its contributors
                     23:  *    may be used to endorse or promote products derived from this software
                     24:  *    without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     36:  * SUCH DAMAGE.
                     37:  */
                     38:
                     39: #ifndef lint
                     40: #if 0
                     41: static char sccsid[] = "@(#)mloop.c    8.1 (Berkeley) 6/6/93";
                     42: #else
1.3     ! niklas     43: static char rcsid[] = "$NetBSD: mloop.c,v 1.5 1996/02/08 20:45:03 mycroft Exp $";
1.1       deraadt    44: #endif
                     45: #endif /* not lint */
                     46:
                     47: #include <sys/param.h>
                     48: #include "defs.h"
                     49:
                     50: mloop()
                     51: {
                     52:        while (!quit) {
                     53:                if (incmd) {
                     54:                        docmd();
                     55:                } else if (wwcurwin->ww_state != WWS_HASPROC) {
1.3     ! niklas     56:                        if (!ISSET(wwcurwin->ww_uflags, WWU_KEEPOPEN))
1.1       deraadt    57:                                closewin(wwcurwin);
                     58:                        setcmd(1);
                     59:                        if (wwpeekc() == escapec)
                     60:                                (void) wwgetc();
                     61:                        error("Process died.");
                     62:                } else {
                     63:                        register struct ww *w = wwcurwin;
                     64:                        register char *p;
                     65:                        register n;
                     66:
1.2       deraadt    67:                        if (wwibp >= wwibq) {
                     68:                                wwibp = wwibq = wwib;
1.1       deraadt    69:                                wwiomux();
1.2       deraadt    70:                        }
1.1       deraadt    71:                        for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec;
                     72:                             p++)
                     73:                                ;
                     74:                        if ((n = p - wwibp) > 0) {
1.3     ! niklas     75:                                if (w->ww_type != WWT_PTY &&
        !            76:                                    ISSET(w->ww_pflags, WWP_STOPPED))
1.1       deraadt    77:                                        startwin(w);
                     78: #if defined(sun) && !defined(BSD)
                     79:                                /* workaround for SunOS pty bug */
                     80:                                while (--n >= 0)
                     81:                                        (void) write(w->ww_pty, wwibp++, 1);
                     82: #else
                     83:                                (void) write(w->ww_pty, wwibp, n);
                     84:                                wwibp = p;
                     85: #endif
                     86:                        }
                     87:                        if (wwpeekc() == escapec) {
                     88:                                (void) wwgetc();
                     89:                                setcmd(1);
                     90:                        }
                     91:                }
                     92:        }
                     93: }