Annotation of 43BSDTahoe/ucb/window/mloop.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #ifndef lint
                     19: static char sccsid[] = "@(#)mloop.c    3.13 (Berkeley) 6/29/88";
                     20: #endif /* not lint */
                     21: 
                     22: #include "defs.h"
                     23: #include <sys/signal.h>
                     24: 
                     25: mloop()
                     26: {
                     27:        kill(getpid(), SIGIO);  /* catch typeahead before ASYNC was set */
                     28:        while (!quit) {
                     29:                if (incmd) {
                     30:                        docmd();
                     31:                } else if (wwcurwin->ww_state != WWS_HASPROC) {
                     32:                        if (!wwcurwin->ww_keepopen)
                     33:                                closewin(wwcurwin);
                     34:                        setcmd(1);
                     35:                        if (wwpeekc() == escapec)
                     36:                                (void) wwgetc();
                     37:                        error("Process died.");
                     38:                } else {
                     39:                        register struct ww *w = wwcurwin;
                     40:                        register char *p;
                     41:                        register n;
                     42: 
                     43:                        if (wwibp >= wwibq)
                     44:                                wwiomux();
                     45:                        for (p = wwibp; p < wwibq && *p != escapec;
                     46:                             p++)
                     47:                                ;
                     48:                        if ((n = p - wwibp) > 0) {
                     49:                                if (!w->ww_ispty && w->ww_stopped)
                     50:                                        startwin(w);
                     51:                                (void) write(w->ww_pty, wwibp, n);
                     52:                                wwibp = p;
                     53:                        }
                     54:                        if (wwpeekc() == escapec) {
                     55:                                (void) wwgetc();
                     56:                                setcmd(1);
                     57:                        }
                     58:                }
                     59:        }
                     60: }

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