Commit | Line | Data |
---|---|---|
f6227721 SL |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)time.c 4.4 (Berkeley) %G%"; | |
3 | #endif | |
35867765 BJ |
4 | |
5 | #include "sh.h" | |
6 | ||
7 | /* | |
8 | * C Shell - routines handling process timing and niceing | |
9 | */ | |
35867765 BJ |
10 | struct tms times0; |
11 | struct tms timesdol; | |
35867765 BJ |
12 | |
13 | settimes() | |
14 | { | |
ea775389 | 15 | struct rusage ruch; |
35867765 | 16 | |
ae3d9709 | 17 | gettimeofday(&time0, (struct timezone *)0); |
ea775389 SL |
18 | getrusage(RUSAGE_SELF, &ru0); |
19 | getrusage(RUSAGE_CHILDREN, &ruch); | |
20 | ruadd(&ru0, &ruch); | |
35867765 BJ |
21 | } |
22 | ||
23 | /* | |
24 | * dotime is only called if it is truly a builtin function and not a | |
25 | * prefix to another command | |
26 | */ | |
27 | dotime() | |
28 | { | |
ae3d9709 | 29 | struct timeval timedol; |
ea775389 | 30 | struct rusage ru1, ruch; |
35867765 | 31 | |
ea775389 SL |
32 | getrusage(RUSAGE_SELF, &ru1); |
33 | getrusage(RUSAGE_CHILDREN, &ruch); | |
34 | ruadd(&ru1, &ruch); | |
ae3d9709 SL |
35 | gettimeofday(&timedol, (struct timezone *)0); |
36 | prusage(&ru0, &ru1, &timedol, &time0); | |
35867765 BJ |
37 | } |
38 | ||
39 | /* | |
40 | * donice is only called when it on the line by itself or with a +- value | |
41 | */ | |
42 | donice(v) | |
43 | register char **v; | |
44 | { | |
45 | register char *cp; | |
46 | ||
47 | v++, cp = *v++; | |
48 | if (cp == 0) { | |
49 | #ifndef V6 | |
50 | nice(20); | |
51 | nice(-10); | |
52 | #endif | |
53 | nice(4); | |
54 | } else if (*v == 0 && any(cp[0], "+-")) { | |
55 | #ifndef V6 | |
56 | nice(20); | |
57 | nice(-10); | |
58 | #endif | |
59 | nice(getn(cp)); | |
60 | } | |
61 | } | |
62 | ||
ea775389 SL |
63 | ruadd(ru, ru2) |
64 | register struct rusage *ru, *ru2; | |
35867765 | 65 | { |
ea775389 SL |
66 | register long *lp, *lp2; |
67 | register int cnt; | |
68 | ||
69 | tvadd(&ru->ru_utime, &ru2->ru_utime); | |
70 | tvadd(&ru->ru_stime, &ru2->ru_stime); | |
71 | if (ru2->ru_maxrss > ru->ru_maxrss) | |
72 | ru->ru_maxrss = ru2->ru_maxrss; | |
73 | cnt = &ru->ru_last - &ru->ru_first + 1; | |
74 | lp = &ru->ru_first; lp2 = &ru2->ru_first; | |
75 | do | |
76 | *lp++ += *lp2++; | |
77 | while (--cnt > 0); | |
35867765 BJ |
78 | } |
79 | ||
ae3d9709 | 80 | prusage(r0, r1, e, b) |
ea775389 | 81 | register struct rusage *r0, *r1; |
ae3d9709 | 82 | struct timeval *e, *b; |
35867765 BJ |
83 | { |
84 | register time_t t = | |
ea775389 SL |
85 | (r1->ru_utime.tv_sec-r0->ru_utime.tv_sec)*100+ |
86 | (r1->ru_utime.tv_usec-r0->ru_utime.tv_usec)/10000+ | |
87 | (r1->ru_stime.tv_sec-r0->ru_stime.tv_sec)*100+ | |
88 | (r1->ru_stime.tv_usec-r0->ru_stime.tv_usec)/10000; | |
35867765 BJ |
89 | register char *cp; |
90 | register int i; | |
91 | register struct varent *vp = adrof("time"); | |
ae3d9709 SL |
92 | int ms = |
93 | (e->tv_sec-b->tv_sec)*100 + (e->tv_usec-b->tv_usec)/10000; | |
35867765 BJ |
94 | |
95 | cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww"; | |
96 | if (vp && vp->vec[0] && vp->vec[1]) | |
97 | cp = vp->vec[1]; | |
98 | for (; *cp; cp++) | |
99 | if (*cp != '%') | |
100 | putchar(*cp); | |
101 | else if (cp[1]) switch(*++cp) { | |
102 | ||
103 | case 'U': | |
ea775389 | 104 | pdeltat(&r1->ru_utime, &r0->ru_utime); |
35867765 BJ |
105 | break; |
106 | ||
107 | case 'S': | |
ea775389 | 108 | pdeltat(&r1->ru_stime, &r0->ru_stime); |
35867765 BJ |
109 | break; |
110 | ||
111 | case 'E': | |
ae3d9709 | 112 | psecs(ms / 100); |
35867765 BJ |
113 | break; |
114 | ||
115 | case 'P': | |
ae3d9709 | 116 | printf("%d%%", (int) (t*100 / ((ms ? ms : 1)))); |
35867765 BJ |
117 | break; |
118 | ||
119 | case 'W': | |
ea775389 | 120 | i = r1->ru_nswap - r0->ru_nswap; |
35867765 BJ |
121 | printf("%d", i); |
122 | break; | |
123 | ||
124 | case 'X': | |
ea775389 | 125 | printf("%d", t == 0 ? 0 : (r1->ru_ixrss-r0->ru_ixrss)/t); |
35867765 BJ |
126 | break; |
127 | ||
128 | case 'D': | |
ea775389 SL |
129 | printf("%d", t == 0 ? 0 : |
130 | (r1->ru_idrss+r1->ru_isrss-(r0->ru_idrss+r0->ru_isrss))/t); | |
35867765 BJ |
131 | break; |
132 | ||
133 | case 'K': | |
ea775389 SL |
134 | printf("%d", t == 0 ? 0 : |
135 | ((r1->ru_ixrss+r1->ru_isrss+r1->ru_idrss) - | |
136 | (r0->ru_ixrss+r0->ru_idrss+r0->ru_isrss))/t); | |
35867765 BJ |
137 | break; |
138 | ||
139 | case 'M': | |
ea775389 | 140 | printf("%d", r1->ru_maxrss/2); |
35867765 BJ |
141 | break; |
142 | ||
143 | case 'F': | |
ea775389 | 144 | printf("%d", r1->ru_majflt-r0->ru_majflt); |
35867765 BJ |
145 | break; |
146 | ||
147 | case 'R': | |
ea775389 | 148 | printf("%d", r1->ru_minflt-r0->ru_minflt); |
35867765 BJ |
149 | break; |
150 | ||
151 | case 'I': | |
ea775389 | 152 | printf("%d", r1->ru_inblock-r0->ru_inblock); |
35867765 BJ |
153 | break; |
154 | ||
155 | case 'O': | |
ea775389 | 156 | printf("%d", r1->ru_oublock-r0->ru_oublock); |
35867765 | 157 | break; |
35867765 BJ |
158 | } |
159 | putchar('\n'); | |
160 | } | |
ea775389 SL |
161 | |
162 | pdeltat(t1, t0) | |
163 | struct timeval *t1, *t0; | |
164 | { | |
165 | struct timeval td; | |
166 | ||
167 | tvsub(&td, t1, t0); | |
168 | printf("%d.%01d", td.tv_sec, td.tv_usec/100000); | |
169 | } | |
170 | ||
171 | tvadd(tsum, t0) | |
172 | struct timeval *tsum, *t0; | |
173 | { | |
174 | ||
175 | tsum->tv_sec += t0->tv_sec; | |
176 | tsum->tv_usec += t0->tv_usec; | |
177 | if (tsum->tv_usec > 1000000) | |
178 | tsum->tv_sec++, tsum->tv_usec -= 1000000; | |
179 | } | |
180 | ||
181 | tvsub(tdiff, t1, t0) | |
182 | struct timeval *tdiff, *t1, *t0; | |
183 | { | |
184 | ||
185 | tdiff->tv_sec = t1->tv_sec - t0->tv_sec; | |
186 | tdiff->tv_usec = t1->tv_usec - t0->tv_usec; | |
187 | if (tdiff->tv_usec < 0) | |
188 | tdiff->tv_sec--, tdiff->tv_usec += 1000000; | |
189 | } |