mbufs.c revision 78664
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"; 36static const char rcsid[] = 37 "$FreeBSD: head/usr.bin/systat/mbufs.c 78664 2001-06-23 17:03:27Z bmilekic $"; 38#endif /* not lint */ 39 40#include <sys/param.h> 41#include <sys/types.h> 42#include <sys/mbuf.h> 43#include <sys/sysctl.h> 44 45#include <errno.h> 46#include <stdlib.h> 47#include <string.h> 48#include <paths.h> 49#include "systat.h" 50#include "extern.h" 51 52static struct mbpstat **mbpstat; 53static int num_objs, ncpu; 54#define GENLST (num_objs - 1) 55 56/* XXX: mbtypes stats temporarily disabled. */ 57#if 0 58static u_long *m_mbtypes; 59static int nmbtypes; 60 61static struct mtnames { 62 int mt_type; 63 char *mt_name; 64} mtnames[] = { 65 { MT_DATA, "data"}, 66 { MT_HEADER, "headers"}, 67 { MT_SONAME, "socknames"}, 68 { MT_FTABLE, "frags"}, 69 { MT_CONTROL, "control"}, 70 { MT_OOBDATA, "oobdata"} 71}; 72 73#define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 74#endif 75 76WINDOW * 77openmbufs() 78{ 79 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 80} 81 82void 83closembufs(w) 84 WINDOW *w; 85{ 86 if (w == NULL) 87 return; 88 wclear(w); 89 wrefresh(w); 90 delwin(w); 91} 92 93void 94labelmbufs() 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 101void 102showmbufs() 103{ 104 int i, j, max, index; 105 u_long totfree; 106 char buf[10]; 107 char *mtname; 108 109/* XXX: mbtypes stats temporarily disabled (will be back soon!) */ 110#if 0 111 for (j = 0; j < wnd->_maxy; j++) { 112 max = 0, index = -1; 113 for (i = 0; i < wnd->_maxy; i++) { 114 if (i == MT_FREE) 115 continue; 116 if (i >= nmbtypes) 117 break; 118 if (m_mbtypes[i] > max) { 119 max = m_mbtypes[i]; 120 index = i; 121 } 122 } 123 if (max == 0) 124 break; 125 126 mtname = NULL; 127 for (i = 0; i < NNAMES; i++) 128 if (mtnames[i].mt_type == index) 129 mtname = mtnames[i].mt_name; 130 if (mtname == NULL) 131 mvwprintw(wnd, 1+j, 0, "%10d", index); 132 else 133 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtname); 134 wmove(wnd, 1 + j, 10); 135 if (max > 60) { 136 snprintf(buf, sizeof(buf), " %d", max); 137 max = 60; 138 while (max--) 139 waddch(wnd, 'X'); 140 waddstr(wnd, buf); 141 } else 142 while (max--) 143 waddch(wnd, 'X'); 144 wclrtoeol(wnd); 145 m_mbtypes[index] = 0; 146 } 147#endif 148 149 /* 150 * Print total number of free mbufs. 151 */ 152 totfree = mbpstat[GENLST]->mb_mbfree; 153 for (i = 0; i < ncpu; i++) 154 totfree += mbpstat[i]->mb_mbfree; 155 j = 0; /* XXX */ 156 if (totfree > 0) { 157 mvwprintw(wnd, 1+j, 0, "%-10.10s", "free"); 158 if (totfree > 60) { 159 snprintf(buf, sizeof(buf), " %lu", totfree); 160 totfree = 60; 161 while(totfree--) 162 waddch(wnd, 'X'); 163 waddstr(wnd, buf); 164 } else { 165 while(totfree--) 166 waddch(wnd, 'X'); 167 } 168 wclrtoeol(wnd); 169 j++; 170 } 171 wmove(wnd, 1+j, 0); wclrtobot(wnd); 172} 173 174int 175initmbufs() 176{ 177 int i; 178 size_t len; 179#if 0 180 size_t mbtypeslen; 181 182 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) { 183 error("sysctl getting mbtypes size failed"); 184 return 0; 185 } 186 if ((m_mbtypes = calloc(1, mbtypeslen)) == NULL) { 187 error("calloc mbtypes failed"); 188 return 0; 189 } 190 nmbtypes = mbtypeslen / sizeof(*m_mbtypes); 191#endif 192 len = sizeof(int); 193 if (sysctlbyname("kern.smp.cpus", &ncpu, &len, NULL, 0) < 0 && 194 sysctlbyname("hw.ncpu", &ncpu, &len, NULL, 0) < 0) { 195 error("sysctl getting number of cpus"); 196 return 0; 197 } 198 if (sysctlbyname("kern.ipc.mb_statpcpu", NULL, &len, NULL, 0) < 0) { 199 error("sysctl getting mbpstat total size failed"); 200 return 0; 201 } 202 num_objs = (int)(len / sizeof(struct mbpstat)); 203 if ((mbpstat = calloc(num_objs, sizeof(struct mbpstat *))) == NULL) { 204 error("calloc mbpstat pointers failed"); 205 return 0; 206 } 207 if ((mbpstat[0] = calloc(num_objs, sizeof(struct mbpstat))) == NULL) { 208 error("calloc mbpstat structures failed"); 209 return 0; 210 } 211 for (i = 0; i < num_objs; i++) 212 mbpstat[i] = mbpstat[0] + i; 213 214 return 1; 215} 216 217void 218fetchmbufs() 219{ 220 size_t len; 221 222 len = num_objs * sizeof(struct mbpstat); 223 if (sysctlbyname("kern.ipc.mb_statpcpu", mbpstat[0], &len, NULL, 0) < 0) 224 printw("sysctl: mbpstat: %s", strerror(errno)); 225#if 0 226 len = nmbtypes * sizeof *m_mbtypes; 227 if (sysctlbyname("kern.ipc.mbtypes", m_mbtypes, &len, 0, 0) < 0) 228 printw("sysctl: mbtypes: %s", strerror(errno)); 229#endif 230} 231