1 /*- 2 * Copyright (c) 1980, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 06/06/93"; 10 #endif /* not lint */ 11 12 #include <sys/param.h> 13 #include <sys/types.h> 14 #include <sys/mbuf.h> 15 16 #include <stdlib.h> 17 #include <string.h> 18 #include <nlist.h> 19 #include <paths.h> 20 #include "systat.h" 21 #include "extern.h" 22 23 static struct mbstat *mb; 24 25 char *mtnames[] = { 26 "free", 27 "data", 28 "headers", 29 "sockets", 30 "pcbs", 31 "routes", 32 "hosts", 33 "arps", 34 "socknames", 35 "zombies", 36 "sockopts", 37 "frags", 38 "rights", 39 "ifaddrs", 40 }; 41 42 #define NNAMES (sizeof (mtnames) / sizeof (mtnames[0])) 43 44 WINDOW * 45 openmbufs() 46 { 47 return (subwin(stdscr, LINES-5-1, 0, 5, 0)); 48 } 49 50 void 51 closembufs(w) 52 WINDOW *w; 53 { 54 if (w == NULL) 55 return; 56 wclear(w); 57 wrefresh(w); 58 delwin(w); 59 } 60 61 void 62 labelmbufs() 63 { 64 wmove(wnd, 0, 0); wclrtoeol(wnd); 65 mvwaddstr(wnd, 0, 10, 66 "/0 /5 /10 /15 /20 /25 /30 /35 /40 /45 /50 /55 /60"); 67 } 68 69 void 70 showmbufs() 71 { 72 register int i, j, max, index; 73 char buf[10]; 74 75 if (mb == 0) 76 return; 77 for (j = 0; j < wnd->maxy; j++) { 78 max = 0, index = -1; 79 for (i = 0; i < wnd->maxy; i++) 80 if (mb->m_mtypes[i] > max) { 81 max = mb->m_mtypes[i]; 82 index = i; 83 } 84 if (max == 0) 85 break; 86 if (j > NNAMES) 87 mvwprintw(wnd, 1+j, 0, "%10d", index); 88 else 89 mvwprintw(wnd, 1+j, 0, "%-10.10s", mtnames[index]); 90 wmove(wnd, 1 + j, 10); 91 if (max > 60) { 92 sprintf(buf, " %d", max); 93 max = 60; 94 while (max--) 95 waddch(wnd, 'X'); 96 waddstr(wnd, buf); 97 } else { 98 while (max--) 99 waddch(wnd, 'X'); 100 wclrtoeol(wnd); 101 } 102 mb->m_mtypes[index] = 0; 103 } 104 wmove(wnd, 1+j, 0); wclrtobot(wnd); 105 } 106 107 static struct nlist namelist[] = { 108 #define X_MBSTAT 0 109 { "_mbstat" }, 110 { "" } 111 }; 112 113 int 114 initmbufs() 115 { 116 if (namelist[X_MBSTAT].n_type == 0) { 117 if (kvm_nlist(kd, namelist)) { 118 nlisterr(namelist); 119 return(0); 120 } 121 if (namelist[X_MBSTAT].n_type == 0) { 122 error("namelist on %s failed", _PATH_UNIX); 123 return(0); 124 } 125 } 126 if (mb == 0) 127 mb = (struct mbstat *)calloc(1, sizeof (*mb)); 128 return(1); 129 } 130 131 void 132 fetchmbufs() 133 { 134 if (namelist[X_MBSTAT].n_type == 0) 135 return; 136 NREAD(X_MBSTAT, mb, sizeof (*mb)); 137 } 138