1 /* $NetBSD: mbufs.c,v 1.10 2000/12/01 02:19:44 simonb 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 #include <sys/cdefs.h> 37 #ifndef lint 38 #if 0 39 static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; 40 #endif 41 __RCSID("$NetBSD: mbufs.c,v 1.10 2000/12/01 02:19:44 simonb Exp $"); 42 #endif /* not lint */ 43 44 #include <sys/param.h> 45 #include <sys/mbuf.h> 46 47 #include <nlist.h> 48 #include <stdlib.h> 49 50 #include "systat.h" 51 #include "extern.h" 52 53 static struct mbstat *mb; 54 55 char *mtnames[] = { 56 "free", 57 "data", 58 "headers", 59 "sockets", 60 "pcbs", 61 "routes", 62 "hosts", 63 "arps", 64 "socknames", 65 "zombies", 66 "sockopts", 67 "frags", 68 "rights", 69 "ifaddrs", 70 }; 71 72 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 73 74 WINDOW * 75 openmbufs(void) 76 { 77 78 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 79 } 80 81 void 82 closembufs(WINDOW *w) 83 { 84 85 if (w == NULL) 86 return; 87 wclear(w); 88 wrefresh(w); 89 delwin(w); 90 } 91 92 void 93 labelmbufs(void) 94 { 95 96 wmove(wnd, 0, 0); wclrtoeol(wnd); 97 mvwaddstr(wnd, 0, 10, 98 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 99 } 100 101 void 102 showmbufs(void) 103 { 104 int i, j, max, index; 105 char buf[10]; 106 107 if (mb == 0) 108 return; 109 for (j = 0; j < getmaxy(wnd); j++) { 110 max = 0, index = -1; 111 for (i = 0; i < getmaxy(wnd); i++) 112 if (mb->m_mtypes[i] > max) { 113 max = mb->m_mtypes[i]; 114 index = i; 115 } 116 if (max == 0) 117 break; 118 if (j > NNAMES) 119 mvwprintw(wnd, 1+j, 0, "%10d", index); 120 else 121 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]); 122 wmove(wnd, 1 + j, 10); 123 if (max > 60) { 124 snprintf(buf, sizeof buf, " %5d", max); 125 max = 60; 126 while (max--) 127 waddch(wnd, 'X'); 128 waddstr(wnd, buf); 129 } else { 130 wclrtoeol(wnd); 131 whline(wnd, 'X', max); 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(void) 146 { 147 148 if (namelist[X_MBSTAT].n_type == 0) { 149 if (kvm_nlist(kd, namelist)) { 150 nlisterr(namelist); 151 return(0); 152 } 153 if (namelist[X_MBSTAT].n_type == 0) { 154 error("No namelist"); 155 return(0); 156 } 157 } 158 if (mb == 0) 159 mb = (struct mbstat *)calloc(1, sizeof (*mb)); 160 return(1); 161 } 162 163 void 164 fetchmbufs(void) 165 { 166 167 if (namelist[X_MBSTAT].n_type == 0) 168 return; 169 NREAD(X_MBSTAT, mb, sizeof (*mb)); 170 } 171