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 1.2 2003/06/17 04:29:32 dillon 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_FTABLE, "frags"}, 62 { MT_CONTROL, "control"}, 63 { MT_OOBDATA, "oobdata"} 64 }; 65 66 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 67 68 WINDOW * 69 openmbufs() 70 { 71 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 72 } 73 74 void 75 closembufs(w) 76 WINDOW *w; 77 { 78 if (w == NULL) 79 return; 80 wclear(w); 81 wrefresh(w); 82 delwin(w); 83 } 84 85 void 86 labelmbufs() 87 { 88 wmove(wnd, 0, 0); wclrtoeol(wnd); 89 mvwaddstr(wnd, 0, 10, 90 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 91 } 92 93 void 94 showmbufs() 95 { 96 register int i, j, max, index; 97 char buf[10]; 98 char *mtname; 99 100 if (mb == 0) 101 return; 102 for (j = 0; j < wnd->_maxy; j++) { 103 max = 0, index = -1; 104 for (i = 0; i < wnd->_maxy; i++) { 105 if (i == MT_FREE) 106 continue; 107 if (i >= nmbtypes) 108 break; 109 if (m_mbtypes[i] > max) { 110 max = m_mbtypes[i]; 111 index = i; 112 } 113 } 114 if (max == 0) 115 break; 116 117 mtname = NULL; 118 for (i = 0; i < NNAMES; i++) 119 if (mtnames[i].mt_type == index) 120 mtname = mtnames[i].mt_name; 121 if (mtname == NULL) 122 mvwprintw(wnd, 1+j, 0, "%10d", index); 123 else 124 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtname); 125 wmove(wnd, 1 + j, 10); 126 if (max > 60) { 127 snprintf(buf, sizeof(buf), " %d", max); 128 max = 60; 129 while (max--) 130 waddch(wnd, 'X'); 131 waddstr(wnd, buf); 132 } else 133 while (max--) 134 waddch(wnd, 'X'); 135 wclrtoeol(wnd); 136 mb->m_mbufs -= m_mbtypes[index]; 137 m_mbtypes[index] = 0; 138 } 139 if (mb->m_mbufs) { 140 mvwprintw(wnd, 1+j, 0, "%-10.10s", "free"); 141 if (mb->m_mbufs > 60) { 142 snprintf(buf, sizeof(buf), " %ld", mb->m_mbufs); 143 mb->m_mbufs = 60; 144 while (mb->m_mbufs--) 145 waddch(wnd, 'X'); 146 waddstr(wnd, buf); 147 } else { 148 while(mb->m_mbufs--) 149 waddch(wnd, 'X'); 150 } 151 wclrtoeol(wnd); 152 j++; 153 } 154 wmove(wnd, 1+j, 0); wclrtobot(wnd); 155 } 156 157 int 158 initmbufs() 159 { 160 size_t len, mbtypeslen; 161 162 if (sysctlbyname("kern.ipc.mbtypes", NULL, &mbtypeslen, NULL, 0) < 0) { 163 error("sysctl getting mbtypes size failed"); 164 return 0; 165 } 166 if ((m_mbtypes = calloc(1, mbtypeslen)) == NULL) { 167 error("calloc mbtypes failed"); 168 return 0; 169 } 170 nmbtypes = mbtypeslen / sizeof(*m_mbtypes); 171 172 len = 0; 173 if (sysctlbyname("kern.ipc.mbstat", 0, &len, 0, 0) < 0) { 174 error("sysctl getting mbstat size failed"); 175 return 0; 176 } 177 178 if (mb == 0) 179 mb = (struct mbstat *)calloc(1, sizeof *mb); 180 return 1; 181 } 182 183 void 184 fetchmbufs() 185 { 186 size_t len; 187 188 len = sizeof *mb; 189 if (sysctlbyname("kern.ipc.mbstat", mb, &len, 0, 0) < 0) 190 printw("sysctl: mbstat: %s", strerror(errno)); 191 192 len = nmbtypes * sizeof *m_mbtypes; 193 if (sysctlbyname("kern.ipc.mbtypes", m_mbtypes, &len, 0, 0) < 0) 194 printw("sysctl: mbtypes: %s", strerror(errno)); 195 } 196