1 /* $NetBSD: mbufs.c,v 1.2 1995/01/20 08:52:02 jtc Exp $ */ 2 3 /*- 4 * Copyright (c) 1980, 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. 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 #ifndef lint 37 #if 0 38 static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; 39 #endif 40 static char rcsid[] = "$NetBSD: mbufs.c,v 1.2 1995/01/20 08:52:02 jtc Exp $"; 41 #endif /* not lint */ 42 43 #include <sys/param.h> 44 #include <sys/types.h> 45 #include <sys/mbuf.h> 46 47 #include <stdlib.h> 48 #include <string.h> 49 #include <nlist.h> 50 #include <paths.h> 51 #include "systat.h" 52 #include "extern.h" 53 54 static struct mbstat *mb; 55 56 char *mtnames[] = { 57 "free", 58 "data", 59 "headers", 60 "sockets", 61 "pcbs", 62 "routes", 63 "hosts", 64 "arps", 65 "socknames", 66 "zombies", 67 "sockopts", 68 "frags", 69 "rights", 70 "ifaddrs", 71 }; 72 73 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 74 75 WINDOW * 76 openmbufs() 77 { 78 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 79 } 80 81 void 82 closembufs(w) 83 WINDOW *w; 84 { 85 if (w == NULL) 86 return; 87 wclear(w); 88 wrefresh(w); 89 delwin(w); 90 } 91 92 void 93 labelmbufs() 94 { 95 wmove(wnd, 0, 0); wclrtoeol(wnd); 96 mvwaddstr(wnd, 0, 10, 97 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 98 } 99 100 void 101 showmbufs() 102 { 103 register int i, j, max, index; 104 char buf[10]; 105 106 if (mb == 0) 107 return; 108 for (j = 0; j < wnd->maxy; j++) { 109 max = 0, index = -1; 110 for (i = 0; i < wnd->maxy; i++) 111 if (mb->m_mtypes[i] > max) { 112 max = mb->m_mtypes[i]; 113 index = i; 114 } 115 if (max == 0) 116 break; 117 if (j > NNAMES) 118 mvwprintw(wnd, 1+j, 0, "%10d", index); 119 else 120 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]); 121 wmove(wnd, 1 + j, 10); 122 if (max > 60) { 123 sprintf(buf, " %d", max); 124 max = 60; 125 while (max--) 126 waddch(wnd, 'X'); 127 waddstr(wnd, buf); 128 } else { 129 while (max--) 130 waddch(wnd, 'X'); 131 wclrtoeol(wnd); 132 } 133 mb->m_mtypes[index] = 0; 134 } 135 wmove(wnd, 1+j, 0); wclrtobot(wnd); 136 } 137 138 static struct nlist namelist[] = { 139 #define X_MBSTAT 0 140 { "_mbstat" }, 141 { "" } 142 }; 143 144 int 145 initmbufs() 146 { 147 if (namelist[X_MBSTAT].n_type == 0) { 148 if (kvm_nlist(kd, namelist)) { 149 nlisterr(namelist); 150 return(0); 151 } 152 if (namelist[X_MBSTAT].n_type == 0) { 153 error("namelist on %s failed", _PATH_UNIX); 154 return(0); 155 } 156 } 157 if (mb == 0) 158 mb = (struct mbstat *)calloc(1, sizeof (*mb)); 159 return(1); 160 } 161 162 void 163 fetchmbufs() 164 { 165 if (namelist[X_MBSTAT].n_type == 0) 166 return; 167 NREAD(X_MBSTAT, mb, sizeof (*mb)); 168 } 169