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07ed1e09 KM |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
5 | */ | |
6 | ||
1cd14d1e | 7 | #ifndef lint |
bcc006b0 | 8 | static char sccsid[] = "@(#)pigs.c 5.7 (Berkeley) %G%"; |
07ed1e09 KM |
9 | #endif not lint |
10 | ||
11 | /* | |
12 | * Pigs display from Bill Reeves at Lucasfilm | |
13 | */ | |
1cd14d1e SL |
14 | |
15 | #include "systat.h" | |
855ff304 KM |
16 | #include <sys/dir.h> |
17 | #include <sys/time.h> | |
18 | #include <sys/proc.h> | |
855ff304 | 19 | #include <pwd.h> |
eef33ea7 | 20 | #include <paths.h> |
1cd14d1e | 21 | |
d830bff6 SL |
22 | WINDOW * |
23 | openpigs() | |
24 | { | |
b5eefd1e | 25 | return (subwin(stdscr, LINES-5-1, 0, 5, 0)); |
d830bff6 SL |
26 | } |
27 | ||
28 | closepigs(w) | |
29 | WINDOW *w; | |
30 | { | |
d830bff6 SL |
31 | if (w == NULL) |
32 | return; | |
d830bff6 SL |
33 | wclear(w); |
34 | wrefresh(w); | |
b5eefd1e | 35 | delwin(w); |
d830bff6 SL |
36 | } |
37 | ||
855ff304 KM |
38 | int maxind; |
39 | int factor; | |
40 | float total; | |
41 | struct passwd *getpwuid(); | |
42 | char pidname[30]; | |
bb15a69f KM |
43 | long stime[CPUSTATES]; |
44 | double idle; | |
855ff304 | 45 | |
1cd14d1e SL |
46 | showpigs() |
47 | { | |
eef33ea7 KB |
48 | register short auid; |
49 | register int i, j, y; | |
50 | register float max; | |
51 | register struct p_times *ptptr; | |
52 | struct p_times temppt; | |
53 | register struct users *knptr; | |
54 | char *getpname(), *pnamp; | |
1cd14d1e | 55 | |
d830bff6 SL |
56 | if (pt == NULL) |
57 | return; | |
eef33ea7 KB |
58 | /* Accumulate the percent of cpu per user. */ |
59 | ptptr = pt; | |
60 | numprocs = 0; | |
61 | total = 0.0; | |
62 | for (i = 0; i < nproc; i++) { | |
63 | /* discard inactive processes */ | |
64 | if (ptptr->pt_uid == -1) { | |
65 | ptptr++; | |
66 | continue; | |
67 | } | |
68 | /* Accumulate the percentage. */ | |
69 | total += ptptr->pt_pctcpu; | |
70 | numprocs++; | |
71 | ptptr++; | |
72 | } | |
73 | ||
74 | pt[numprocs].pt_pctcpu = idle; | |
ae4efee0 | 75 | total += idle; |
eef33ea7 KB |
76 | pt[numprocs].pt_uid = -1; |
77 | pt[numprocs].pt_pid = -1; | |
78 | pt[numprocs].pt_pp = NULL; | |
1cd14d1e | 79 | |
ae4efee0 KM |
80 | if (total < 1.0) |
81 | total = 1.0; | |
eef33ea7 | 82 | factor = 50.0/total; |
1cd14d1e | 83 | |
eef33ea7 | 84 | /* Find the top few by executing a "bubble pass" ten times. */ |
b5eefd1e SL |
85 | y = numprocs + 1; |
86 | if (y > wnd->_maxy-1) | |
87 | y = wnd->_maxy-1; | |
eef33ea7 KB |
88 | for (i = 0; i < y; i++) { |
89 | ptptr = &pt[i]; | |
90 | max = -10000.0; | |
91 | maxind = i; | |
92 | for (j = i; j < numprocs + 1; j++) { | |
93 | if (ptptr->pt_pctcpu > max) { | |
94 | max = ptptr->pt_pctcpu; | |
95 | maxind = j; | |
96 | } | |
97 | ptptr++; | |
98 | } | |
99 | if (maxind != i) { | |
100 | temppt = pt[i]; | |
101 | pt[i] = pt[maxind]; | |
102 | pt[maxind] = temppt; | |
103 | } | |
104 | } | |
105 | y = 1; | |
106 | ptptr = pt; | |
b5eefd1e SL |
107 | i = numprocs + 1; |
108 | if (i > wnd->_maxy-1) | |
109 | i = wnd->_maxy-1; | |
eef33ea7 KB |
110 | for (; i > 0 && ptptr->pt_pctcpu > 0.01; i--) { |
111 | /* Find the user's name. */ | |
112 | knptr = known; | |
113 | auid = ptptr->pt_uid; | |
114 | for (j = numknown - 1; j >= 0; j--) { | |
115 | if (knptr->k_uid == auid) { | |
116 | namp = knptr->k_name; | |
117 | break; | |
118 | } | |
119 | knptr++; | |
120 | } | |
121 | if (j < 0) { | |
122 | if (numknown < 30) { | |
123 | knptr = &known[numknown]; | |
124 | namp = strncpy(knptr->k_name, | |
125 | getpwuid(auid)->pw_name, 15); | |
126 | knptr->k_name[15] = '\0'; | |
127 | knptr->k_uid = auid; | |
128 | numknown++; | |
129 | } else | |
130 | namp = getpwuid(auid)-> pw_name; | |
131 | } | |
132 | pnamp = getpname(ptptr->pt_pid, ptptr->pt_pp); | |
133 | wmove(wnd, y, 0); | |
134 | wclrtoeol(wnd); | |
135 | mvwaddstr(wnd, y, 0, namp); | |
136 | sprintf(pidname, "%10.10s", pnamp); | |
137 | mvwaddstr(wnd, y, 9, pidname); | |
138 | wmove(wnd, y++, 20); | |
139 | for (j = ptptr->pt_pctcpu*factor + 0.5; j > 0; j--) | |
140 | waddch(wnd, 'X'); | |
141 | ptptr++; | |
142 | } | |
b5eefd1e | 143 | wmove(wnd, y, 0); wclrtobot(wnd); |
1cd14d1e SL |
144 | } |
145 | ||
d830bff6 | 146 | static struct nlist nlst[] = { |
1cd14d1e | 147 | #define X_PROC 0 |
eef33ea7 | 148 | { "_proc" }, |
1cd14d1e | 149 | #define X_NPROC 1 |
eef33ea7 | 150 | { "_nproc" }, |
d830bff6 | 151 | #define X_USRPTMAP 2 |
eef33ea7 | 152 | { "_Usrptmap" }, |
d830bff6 | 153 | #define X_USRPT 3 |
eef33ea7 | 154 | { "_usrpt" }, |
bb15a69f KM |
155 | #define X_CPTIME 4 |
156 | { "_cp_time" }, | |
eef33ea7 | 157 | { "" } |
d830bff6 | 158 | }; |
1cd14d1e | 159 | |
852c7064 | 160 | initpigs() |
1cd14d1e | 161 | { |
d830bff6 | 162 | if (nlst[X_PROC].n_type == 0) { |
eef33ea7 | 163 | nlist(_PATH_UNIX, nlst); |
d830bff6 | 164 | if (nlst[X_PROC].n_type == 0) { |
eef33ea7 | 165 | error("namelist on %s failed", _PATH_UNIX); |
c0b7e584 | 166 | return(0); |
d830bff6 SL |
167 | } |
168 | } | |
eef33ea7 KB |
169 | if (procp == NULL) { |
170 | procp = getw(nlst[X_PROC].n_value); | |
171 | nproc = getw(nlst[X_NPROC].n_value); | |
172 | } | |
c6265927 | 173 | if (kprocp == NULL) |
eef33ea7 KB |
174 | kprocp = (struct proc *)calloc(nproc, sizeof (struct proc)); |
175 | if (usrpt != NULL) | |
c0b7e584 | 176 | return(1); |
852c7064 SL |
177 | usrpt = (struct pte *)nlst[X_USRPT].n_value; |
178 | Usrptma = (struct pte *)nlst[X_USRPTMAP].n_value; | |
c6265927 SL |
179 | if (pt == NULL) |
180 | pt = (struct p_times *)calloc(nproc, sizeof (struct p_times)); | |
bb15a69f KM |
181 | lseek(kmem, (long)nlst[X_CPTIME].n_value, L_SET); |
182 | read(kmem, stime, sizeof stime); | |
c0b7e584 | 183 | return(1); |
852c7064 SL |
184 | } |
185 | ||
186 | fetchpigs() | |
187 | { | |
eef33ea7 KB |
188 | register int i; |
189 | register struct p_times *prt; | |
190 | register float time; | |
191 | register struct proc *pp; | |
bb15a69f | 192 | long ctime[CPUSTATES]; |
bb15a69f | 193 | double t; |
852c7064 | 194 | |
d830bff6 SL |
195 | if (nlst[X_PROC].n_type == 0) |
196 | return; | |
c6265927 SL |
197 | if (kprocp == NULL) { |
198 | kprocp = (struct proc *)calloc(nproc, sizeof (struct proc)); | |
199 | if (kprocp == NULL) | |
200 | return; | |
201 | } | |
202 | if (pt == NULL) { | |
203 | pt = (struct p_times *)calloc(nproc, sizeof (struct p_times)); | |
204 | if (pt == NULL) | |
205 | return; | |
206 | } | |
eef33ea7 KB |
207 | prt = pt; |
208 | lseek(kmem, procp, L_SET); | |
209 | read(kmem, kprocp, sizeof (struct proc) * nproc); | |
210 | for (i = 0, pp = kprocp; i < nproc; i++, pp++) { | |
211 | time = pp->p_time; | |
212 | if (time == 0 || (pp->p_flag & SLOAD) == 0) | |
213 | continue; | |
214 | prt->pt_pid = pp->p_pid; | |
215 | prt->pt_pp = pp; | |
bcc006b0 KM |
216 | prt->pt_pctcpu = ((double) pp->p_pctcpu / fscale) / |
217 | (1.0 - exp(time * lccpu)); | |
eef33ea7 KB |
218 | prt->pt_uid = pp->p_uid; |
219 | prt++; | |
220 | } | |
221 | for (; prt < &pt[nproc]; prt++) | |
222 | prt->pt_uid = -1; | |
bb15a69f KM |
223 | lseek(kmem, (long)nlst[X_CPTIME].n_value, L_SET); |
224 | read(kmem, ctime, sizeof ctime); | |
225 | t = 0; | |
226 | for (i = 0; i < CPUSTATES; i++) | |
227 | t += ctime[i] - stime[i]; | |
228 | if (t == 0.0) | |
229 | t = 1.0; | |
230 | idle = (ctime[CP_IDLE] - stime[CP_IDLE]) / t; | |
231 | for (i = 0; i < CPUSTATES; i++) | |
232 | stime[i] = ctime[i]; | |
1cd14d1e SL |
233 | } |
234 | ||
235 | labelpigs() | |
236 | { | |
b5eefd1e | 237 | wmove(wnd, 0, 0); wclrtoeol(wnd); |
eef33ea7 KB |
238 | mvwaddstr(wnd, 0, 20, |
239 | "/0 /10 /20 /30 /40 /50 /60 /70 /80 /90 /100"); | |
1cd14d1e | 240 | } |