1 /* $NetBSD: mloop.c,v 1.8 2003/08/07 11:17:27 agc Exp $ */ 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)mloop.c 8.1 (Berkeley) 6/6/93"; 39 #else 40 __RCSID("$NetBSD: mloop.c,v 1.8 2003/08/07 11:17:27 agc Exp $"); 41 #endif 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <unistd.h> 46 #include "defs.h" 47 48 void 49 mloop(void) 50 { 51 while (!quit) { 52 if (incmd) { 53 docmd(); 54 } else if (wwcurwin->ww_state != WWS_HASPROC) { 55 if (!ISSET(wwcurwin->ww_uflags, WWU_KEEPOPEN)) 56 closewin(wwcurwin); 57 setcmd(1); 58 if (wwpeekc() == escapec) 59 (void) wwgetc(); 60 error("Process died."); 61 } else { 62 struct ww *w = wwcurwin; 63 char *p; 64 int n; 65 66 if (wwibp >= wwibq) { 67 wwibp = wwibq = wwib; 68 wwiomux(); 69 } 70 for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec; 71 p++) 72 ; 73 if ((n = p - wwibp) > 0) { 74 if (w->ww_type != WWT_PTY && 75 ISSET(w->ww_pflags, WWP_STOPPED)) 76 startwin(w); 77 #if defined(sun) && !defined(BSD) 78 /* workaround for SunOS pty bug */ 79 while (--n >= 0) 80 (void) write(w->ww_pty, wwibp++, 1); 81 #else 82 (void) write(w->ww_pty, wwibp, n); 83 wwibp = p; 84 #endif 85 } 86 if (wwpeekc() == escapec) { 87 (void) wwgetc(); 88 setcmd(1); 89 } 90 } 91 } 92 } 93