1 /* @(#)mloop.c 8.1 (Berkeley) 6/6/93 */ 2 /* $NetBSD: mloop.c,v 1.8 2003/08/07 11:17:27 agc Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Edward Wang at The University of California, Berkeley. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/param.h> 37 #include <unistd.h> 38 #include "defs.h" 39 40 void 41 mloop(void) 42 { 43 while (!quit) { 44 if (incmd) { 45 docmd(); 46 } else if (wwcurwin->ww_state != WWS_HASPROC) { 47 if (!ISSET(wwcurwin->ww_uflags, WWU_KEEPOPEN)) 48 closewin(wwcurwin); 49 setcmd(1); 50 if (wwpeekc() == escapec) 51 (void) wwgetc(); 52 error("Process died."); 53 } else { 54 struct ww *w = wwcurwin; 55 char *p; 56 int n; 57 58 if (wwibp >= wwibq) { 59 wwibp = wwibq = wwib; 60 wwiomux(); 61 } 62 for (p = wwibp; p < wwibq && wwmaskc(*p) != escapec; 63 p++) 64 ; 65 if ((n = p - wwibp) > 0) { 66 if (w->ww_type != WWT_PTY && 67 ISSET(w->ww_pflags, WWP_STOPPED)) 68 startwin(w); 69 #if defined(sun) && !defined(BSD) 70 /* workaround for SunOS pty bug */ 71 while (--n >= 0) 72 (void) write(w->ww_pty, wwibp++, 1); 73 #else 74 (void) write(w->ww_pty, wwibp, n); 75 wwibp = p; 76 #endif 77 } 78 if (wwpeekc() == escapec) { 79 (void) wwgetc(); 80 setcmd(1); 81 } 82 } 83 } 84 } 85