1 /*- 2 * Copyright (c) 1980, 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)time.c 5.15 (Berkeley) 07/19/91"; 10 #endif /* not lint */ 11 12 #include <sys/types.h> 13 #if __STDC__ 14 # include <stdarg.h> 15 #else 16 # include <varargs.h> 17 #endif 18 19 #include "csh.h" 20 #include "extern.h" 21 22 /* 23 * C Shell - routines handling process timing and niceing 24 */ 25 static void pdeltat __P((struct timeval *, struct timeval *)); 26 27 void 28 settimes() 29 { 30 struct rusage ruch; 31 32 (void) gettimeofday(&time0, NULL); 33 (void) getrusage(RUSAGE_SELF, &ru0); 34 (void) getrusage(RUSAGE_CHILDREN, &ruch); 35 ruadd(&ru0, &ruch); 36 } 37 38 /* 39 * dotime is only called if it is truly a builtin function and not a 40 * prefix to another command 41 */ 42 void 43 /*ARGSUSED*/ 44 dotime(v, t) 45 Char **v; 46 struct command *t; 47 { 48 struct timeval timedol; 49 struct rusage ru1, ruch; 50 51 (void) getrusage(RUSAGE_SELF, &ru1); 52 (void) getrusage(RUSAGE_CHILDREN, &ruch); 53 ruadd(&ru1, &ruch); 54 (void) gettimeofday(&timedol, NULL); 55 prusage(&ru0, &ru1, &timedol, &time0); 56 } 57 58 /* 59 * donice is only called when it on the line by itself or with a +- value 60 */ 61 void 62 /*ARGSUSED*/ 63 donice(v, t) 64 Char **v; 65 struct command *t; 66 { 67 register Char *cp; 68 int nval = 0; 69 70 v++, cp = *v++; 71 if (cp == 0) 72 nval = 4; 73 else if (*v == 0 && any("+-", cp[0])) 74 nval = getn(cp); 75 (void) setpriority(PRIO_PROCESS, 0, nval); 76 } 77 78 void 79 ruadd(ru, ru2) 80 register struct rusage *ru, *ru2; 81 { 82 tvadd(&ru->ru_utime, &ru2->ru_utime); 83 tvadd(&ru->ru_stime, &ru2->ru_stime); 84 if (ru2->ru_maxrss > ru->ru_maxrss) 85 ru->ru_maxrss = ru2->ru_maxrss; 86 87 ru->ru_ixrss += ru2->ru_ixrss; 88 ru->ru_idrss += ru2->ru_idrss; 89 ru->ru_isrss += ru2->ru_isrss; 90 ru->ru_minflt += ru2->ru_minflt; 91 ru->ru_majflt += ru2->ru_majflt; 92 ru->ru_nswap += ru2->ru_nswap; 93 ru->ru_inblock += ru2->ru_inblock; 94 ru->ru_oublock += ru2->ru_oublock; 95 ru->ru_msgsnd += ru2->ru_msgsnd; 96 ru->ru_msgrcv += ru2->ru_msgrcv; 97 ru->ru_nsignals += ru2->ru_nsignals; 98 ru->ru_nvcsw += ru2->ru_nvcsw; 99 ru->ru_nivcsw += ru2->ru_nivcsw; 100 } 101 102 void 103 prusage(r0, r1, e, b) 104 register struct rusage *r0, *r1; 105 struct timeval *e, *b; 106 { 107 register time_t t = 108 (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 + 109 (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 + 110 (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 + 111 (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000; 112 register char *cp; 113 register long i; 114 register struct varent *vp = adrof(STRtime); 115 116 int ms = 117 (e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000; 118 119 cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww"; 120 121 if (vp && vp->vec[0] && vp->vec[1]) 122 cp = short2str(vp->vec[1]); 123 124 for (; *cp; cp++) 125 if (*cp != '%') 126 (void) fputc(*cp, cshout); 127 else if (cp[1]) 128 switch (*++cp) { 129 130 case 'U': /* user CPU time used */ 131 pdeltat(&r1->ru_utime, &r0->ru_utime); 132 break; 133 134 case 'S': /* system CPU time used */ 135 pdeltat(&r1->ru_stime, &r0->ru_stime); 136 break; 137 138 case 'E': /* elapsed (wall-clock) time */ 139 pcsecs((long) ms); 140 break; 141 142 case 'P': /* percent time spent running */ 143 /* check if it did not run at all */ 144 i = (ms == 0) ? 0 : (t * 1000 / ms); 145 /* nn.n% */ 146 (void) fprintf(cshout, "%ld.%01ld%%", i / 10, i % 10); 147 break; 148 149 case 'W': /* number of swaps */ 150 i = r1->ru_nswap - r0->ru_nswap; 151 (void) fprintf(cshout, "%ld", i); 152 break; 153 154 case 'X': /* (average) shared text size */ 155 (void) fprintf(cshout, "%ld", t == 0 ? 0L : 156 (r1->ru_ixrss - r0->ru_ixrss) / t); 157 break; 158 159 case 'D': /* (average) unshared data size */ 160 (void) fprintf(cshout, "%ld", t == 0 ? 0L : 161 (r1->ru_idrss + r1->ru_isrss - 162 (r0->ru_idrss + r0->ru_isrss)) / t); 163 break; 164 165 case 'K': /* (average) total data memory used */ 166 (void) fprintf(cshout, "%ld", t == 0 ? 0L : 167 ((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss) - 168 (r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss)) / t); 169 break; 170 171 case 'M': /* max. Resident Set Size */ 172 (void) fprintf(cshout, "%ld", r1->ru_maxrss / 2L); 173 break; 174 175 case 'F': /* page faults */ 176 (void) fprintf(cshout, "%ld", r1->ru_majflt - r0->ru_majflt); 177 break; 178 179 case 'R': /* page reclaims */ 180 (void) fprintf(cshout, "%ld", r1->ru_minflt - r0->ru_minflt); 181 break; 182 183 case 'I': /* FS blocks in */ 184 (void) fprintf(cshout, "%ld", r1->ru_inblock - r0->ru_inblock); 185 break; 186 187 case 'O': /* FS blocks out */ 188 (void) fprintf(cshout, "%ld", r1->ru_oublock - r0->ru_oublock); 189 break; 190 191 case 'r': /* socket messages recieved */ 192 (void) fprintf(cshout, "%ld", r1->ru_msgrcv - r0->ru_msgrcv); 193 break; 194 195 case 's': /* socket messages sent */ 196 (void) fprintf(cshout, "%ld", r1->ru_msgsnd - r0->ru_msgsnd); 197 break; 198 199 case 'k': /* number of signals recieved */ 200 (void) fprintf(cshout, "%ld", r1->ru_nsignals-r0->ru_nsignals); 201 break; 202 203 case 'w': /* num. voluntary context switches (waits) */ 204 (void) fprintf(cshout, "%ld", r1->ru_nvcsw - r0->ru_nvcsw); 205 break; 206 207 case 'c': /* num. involuntary context switches */ 208 (void) fprintf(cshout, "%ld", r1->ru_nivcsw - r0->ru_nivcsw); 209 break; 210 } 211 (void) fputc('\n', cshout); 212 } 213 214 static void 215 pdeltat(t1, t0) 216 struct timeval *t1, *t0; 217 { 218 struct timeval td; 219 220 tvsub(&td, t1, t0); 221 (void) fprintf(cshout, "%d.%01d", td.tv_sec, td.tv_usec / 100000); 222 } 223 224 void 225 tvadd(tsum, t0) 226 struct timeval *tsum, *t0; 227 { 228 229 tsum->tv_sec += t0->tv_sec; 230 tsum->tv_usec += t0->tv_usec; 231 if (tsum->tv_usec > 1000000) 232 tsum->tv_sec++, tsum->tv_usec -= 1000000; 233 } 234 235 void 236 tvsub(tdiff, t1, t0) 237 struct timeval *tdiff, *t1, *t0; 238 { 239 240 tdiff->tv_sec = t1->tv_sec - t0->tv_sec; 241 tdiff->tv_usec = t1->tv_usec - t0->tv_usec; 242 if (tdiff->tv_usec < 0) 243 tdiff->tv_sec--, tdiff->tv_usec += 1000000; 244 } 245 246 #define P2DIG(i) (void) fprintf(cshout, "%d%d", (i) / 10, (i) % 10) 247 248 void 249 psecs(l) 250 long l; 251 { 252 register int i; 253 254 i = l / 3600; 255 if (i) { 256 (void) fprintf(cshout, "%d:", i); 257 i = l % 3600; 258 P2DIG(i / 60); 259 goto minsec; 260 } 261 i = l; 262 (void) fprintf(cshout, "%d", i / 60); 263 minsec: 264 i %= 60; 265 (void) fputc(':', cshout); 266 P2DIG(i); 267 } 268 269 void 270 pcsecs(l) /* PWP: print mm:ss.dd, l is in sec*100 */ 271 long l; 272 { 273 register int i; 274 275 i = l / 360000; 276 if (i) { 277 (void) fprintf(cshout, "%d:", i); 278 i = (l % 360000) / 100; 279 P2DIG(i / 60); 280 goto minsec; 281 } 282 i = l / 100; 283 (void) fprintf(cshout, "%d", i / 60); 284 minsec: 285 i %= 60; 286 (void) fputc(':', cshout); 287 P2DIG(i); 288 (void) fputc('.', cshout); 289 P2DIG((int) (l % 100)); 290 } 291