mbufs.c revision 3041
1/*- 2 * Copyright (c) 1980, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; 36#endif /* not lint */ 37 38#include <sys/param.h> 39#include <sys/types.h> 40#include <sys/mbuf.h> 41 42#include <stdlib.h> 43#include <string.h> 44#include <nlist.h> 45#include <paths.h> 46#include "systat.h" 47#include "extern.h" 48 49static struct mbstat *mb; 50 51char *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 70WINDOW * 71openmbufs() 72{ 73 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 74} 75 76void 77closembufs(w) 78 WINDOW *w; 79{ 80 if (w == NULL) 81 return; 82 wclear(w); 83 wrefresh(w); 84 delwin(w); 85} 86 87void 88labelmbufs() 89{ 90 wmove(wnd, 0, 0); wclrtoeol(wnd); 91 mvwaddstr(wnd, 0, 10, 92 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 93} 94 95void 96showmbufs() 97{ 98 register int i, j, max, index; 99 char buf[10]; 100 101 if (mb == 0) 102 return; 103 for (j = 0; j < wnd->maxy; j++) { 104 max = 0, index = -1; 105 for (i = 0; i < wnd->maxy; i++) 106 if (mb->m_mtypes[i] > max) { 107 max = mb->m_mtypes[i]; 108 index = i; 109 } 110 if (max == 0) 111 break; 112 if (j > NNAMES) 113 mvwprintw(wnd, 1+j, 0, "%10d", index); 114 else 115 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]); 116 wmove(wnd, 1 + j, 10); 117 if (max > 60) { 118 sprintf(buf, " %d", max); 119 max = 60; 120 while (max--) 121 waddch(wnd, 'X'); 122 waddstr(wnd, buf); 123 } else { 124 while (max--) 125 waddch(wnd, 'X'); 126 wclrtoeol(wnd); 127 } 128 mb->m_mtypes[index] = 0; 129 } 130 wmove(wnd, 1+j, 0); wclrtobot(wnd); 131} 132 133static struct nlist namelist[] = { 134#define X_MBSTAT 0 135 { "_mbstat" }, 136 { "" } 137}; 138 139int 140initmbufs() 141{ 142 if (namelist[X_MBSTAT].n_type == 0) { 143 if (kvm_nlist(kd, namelist)) { 144 nlisterr(namelist); 145 return(0); 146 } 147 if (namelist[X_MBSTAT].n_type == 0) { 148 error("namelist on %s failed", getbootfile()); 149 return(0); 150 } 151 } 152 if (mb == 0) 153 mb = (struct mbstat *)calloc(1, sizeof (*mb)); 154 return(1); 155} 156 157void 158fetchmbufs() 159{ 160 if (namelist[X_MBSTAT].n_type == 0) 161 return; 162 NREAD(X_MBSTAT, mb, sizeof (*mb)); 163} 164