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 * @(#)mbufs.c 8.1 (Berkeley) 6/6/93 34 * $FreeBSD: src/usr.bin/systat/mbufs.c,v 1.10.2.1 2000/08/26 09:36:55 ps Exp $ 35 * $DragonFly: src/usr.bin/systat/mbufs.c,v 1.5 2005/03/12 10:38:42 y0netan1 Exp $ 36 */ 37 38 #include <sys/param.h> 39 #include <sys/types.h> 40 #include <sys/mbuf.h> 41 #include <sys/sysctl.h> 42 43 #include <errno.h> 44 #include <stdlib.h> 45 #include <string.h> 46 #include <paths.h> 47 #include "systat.h" 48 #include "extern.h" 49 50 static struct mbstat *mb; 51 static u_long *m_mbtypes; 52 static int nmbtypes; 53 54 static struct mtnames { 55 int mt_type; 56 char *mt_name; 57 } mtnames[] = { 58 { MT_DATA, "data"}, 59 { MT_HEADER, "headers"}, 60 { MT_SONAME, "socknames"}, 61 { MT_CONTROL, "control"}, 62 { MT_OOBDATA, "oobdata"} 63 }; 64 65 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 66 67 WINDOW * 68 openmbufs(void) 69 { 70 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 71 } 72 73 void 74 closembufs(WINDOW *w) 75 { 76 if (w == NULL) 77 return; 78 wclear(w); 79 wrefresh(w); 80 delwin(w); 81 } 82 83 void 84 labelmbufs(void) 85 { 86 wmove(wnd, 0, 0); wclrtoeol(wnd); 87 mvwaddstr(wnd, 0, 10, 88 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 89 } 90 91 void 92 showmbufs(void) 93 { 94 register int i, j, max, index; 95 char buf[10]; 96 char *mtname; 97 98 if (mb == 0) 99 return; 100 for (j = 0; j < wnd->_maxy; j++) { 101 max = 0, index = -1; 102 for (i = 0; i < wnd->_maxy; i++) { 103 if (i == MT_FREE) 104 continue; 105 if (i >= nmbtypes) 106 break; 107 if (m_mbtypes[i] > max) { 108 max = m_mbtypes[i]; 109 index = i; 110 } 111 } 112 if (max == 0) 113 break; 114 115 mtname = NULL; 116 for (i = 0; i < NNAMES; i++) 117 if (mtnames[i].mt_type == index) 118 mtname = mtnames[i].mt_name; 119 if (mtname == NULL) 120 mvwprintw(wnd, 1+j, 0, "%10d", index); 121 else 122 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtname); 123 wmove(wnd, 1 + j, 10); 124 if (max > 60) { 125 snprintf(buf, sizeof(buf), " %d", max); 126 max = 60; 127 while (max--) 128 waddch(wnd, 'X'); 129 waddstr(wnd, buf); 130 } else 131 while (max--) 132 waddch(wnd, 'X'); 133 wclrtoeol(wnd); 134 mb->m_mbufs -= m_mbtypes[index]; 135 m_mbtypes[index] = 0; 136 } 137 if (mb->m_mbufs) { 138 mvwprintw(wnd, 1+j, 0, "%-10.10s", "free"); 139 if (mb->m_mbufs > 60) { 140 snprintf(buf, sizeof(buf), " %ld", mb->m_mbufs); 141 mb->m_mbufs = 60; 142 while (mb->m_mbufs--) 143 waddch(wnd, 'X'); 144 waddstr(wnd, buf); 145 } else { 146 while(mb->m_mbufs--) 147 waddch(wnd, 'X'); 148 } 149 wclrtoeol(wnd); 150 j++; 151 } 152 wmove(wnd, 1+j, 0); wclrtobot(wnd); 153 } 154 155 int 156 initmbufs(void) 157 { 158 size_t len, mbtypeslen; 159 160 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) { 161 error("sysctl getting mbtypes size failed"); 162 return 0; 163 } 164 if ((m_mbtypes = calloc(1, mbtypeslen)) == NULL) { 165 error("calloc mbtypes failed"); 166 return 0; 167 } 168 nmbtypes = mbtypeslen / sizeof(*m_mbtypes); 169 170 len = 0; 171 if (sysctlbyname("kern.ipc.mbstat", 0, &len, 0, 0) < 0) { 172 error("sysctl getting mbstat size failed"); 173 return 0; 174 } 175 176 if (mb == 0) 177 mb = (struct mbstat *)calloc(1, sizeof *mb); 178 return 1; 179 } 180 181 void 182 fetchmbufs(void) 183 { 184 size_t len; 185 186 len = sizeof *mb; 187 if (sysctlbyname("kern.ipc.mbstat", mb, &len, 0, 0) < 0) 188 printw("sysctl: mbstat: %s", strerror(errno)); 189 190 len = nmbtypes * sizeof *m_mbtypes; 191 if (sysctlbyname("kern.ipc.mbtypes", m_mbtypes, &len, 0, 0) < 0) 192 printw("sysctl: mbtypes: %s", strerror(errno)); 193 } 194