1 /* $NetBSD: mbufs.c,v 1.12 2003/08/07 11:15:59 agc 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. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; 36 #endif 37 __RCSID("$NetBSD: mbufs.c,v 1.12 2003/08/07 11:15:59 agc Exp $"); 38 #endif /* not lint */ 39 40 #include <sys/param.h> 41 #include <sys/mbuf.h> 42 43 #include <nlist.h> 44 #include <stdlib.h> 45 46 #include "systat.h" 47 #include "extern.h" 48 49 static struct mbstat *mb; 50 51 char *mtnames[] = { 52 "free", 53 "data", 54 "headers", 55 "sockets", 56 "pcbs", 57 "routes", 58 "hosts", 59 "arps", 60 "socknames", 61 "zombies", 62 "sockopts", 63 "frags", 64 "rights", 65 "ifaddrs", 66 }; 67 68 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 69 70 WINDOW * 71 openmbufs(void) 72 { 73 74 return (subwin(stdscr, -1, 0, 5, 0)); 75 } 76 77 void 78 closembufs(WINDOW *w) 79 { 80 81 if (w == NULL) 82 return; 83 wclear(w); 84 wrefresh(w); 85 delwin(w); 86 } 87 88 void 89 labelmbufs(void) 90 { 91 92 wmove(wnd, 0, 0); wclrtoeol(wnd); 93 mvwaddstr(wnd, 0, 10, 94 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 95 } 96 97 void 98 showmbufs(void) 99 { 100 int i, j, max, index; 101 char buf[10]; 102 103 if (mb == 0) 104 return; 105 for (j = 0; j < getmaxy(wnd); j++) { 106 max = 0, index = -1; 107 for (i = 0; i < getmaxy(wnd); i++) 108 if (mb->m_mtypes[i] > max) { 109 max = mb->m_mtypes[i]; 110 index = i; 111 } 112 if (max == 0) 113 break; 114 if (j > NNAMES) 115 mvwprintw(wnd, 1+j, 0, "%10d", index); 116 else 117 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]); 118 wmove(wnd, 1 + j, 10); 119 if (max > 60) { 120 snprintf(buf, sizeof buf, " %5d", max); 121 max = 60; 122 while (max--) 123 waddch(wnd, 'X'); 124 waddstr(wnd, buf); 125 } else { 126 wclrtoeol(wnd); 127 whline(wnd, 'X', max); 128 } 129 mb->m_mtypes[index] = 0; 130 } 131 wmove(wnd, 1+j, 0); wclrtobot(wnd); 132 } 133 134 static struct nlist namelist[] = { 135 #define X_MBSTAT 0 136 { "_mbstat" }, 137 { "" } 138 }; 139 140 int 141 initmbufs(void) 142 { 143 144 if (namelist[X_MBSTAT].n_type == 0) { 145 if (kvm_nlist(kd, namelist)) { 146 nlisterr(namelist); 147 return(0); 148 } 149 if (namelist[X_MBSTAT].n_type == 0) { 150 error("No namelist"); 151 return(0); 152 } 153 } 154 if (mb == 0) 155 mb = (struct mbstat *)calloc(1, sizeof (*mb)); 156 return(1); 157 } 158 159 void 160 fetchmbufs(void) 161 { 162 163 if (namelist[X_MBSTAT].n_type == 0) 164 return; 165 NREAD(X_MBSTAT, mb, sizeof (*mb)); 166 } 167