1 /* 2 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 3 * Use is subject to license terms. 4 */ 5 6 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 7 /* All Rights Reserved */ 8 9 /* 10 * Copyright (c) 1980 Regents of the University of California. 11 * All rights reserved. The Berkeley Software License Agreement 12 * specifies the terms and conditions for redistribution. 13 */ 14 15 #pragma ident "%Z%%M% %I% %E% SMI" 16 17 #include "sh.h" 18 #include "sh.tconst.h" 19 20 void ruadd(struct rusage *ru, struct rusage *ru2); 21 void prusage(struct rusage *r0, struct rusage *r1, struct timeval *e, 22 struct timeval *b); 23 void pdeltat(struct timeval *t1, struct timeval *t0); 24 void tvadd(struct timeval *tsum, struct timeval *t0); 25 void tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0); 26 27 /* 28 * C Shell - routines handling process timing and niceing 29 */ 30 31 void 32 settimes() 33 { 34 struct rusage ruch; 35 36 #ifdef TRACE 37 tprintf("TRACE- settimes()\n"); 38 #endif 39 (void) gettimeofday(&time0, (struct timezone *)0); 40 (void) getrusage(RUSAGE_SELF, &ru0); 41 (void) getrusage(RUSAGE_CHILDREN, &ruch); 42 ruadd(&ru0, &ruch); 43 } 44 45 /* 46 * dotime is only called if it is truly a builtin function and not a 47 * prefix to another command 48 */ 49 void 50 dotime() 51 { 52 struct timeval timedol; 53 struct rusage ru1, ruch; 54 55 #ifdef TRACE 56 tprintf("TRACE- dotime()\n"); 57 #endif 58 (void) getrusage(RUSAGE_SELF, &ru1); 59 (void) getrusage(RUSAGE_CHILDREN, &ruch); 60 ruadd(&ru1, &ruch); 61 (void) gettimeofday(&timedol, (struct timezone *)0); 62 prusage(&ru0, &ru1, &timedol, &time0); 63 } 64 65 /* 66 * donice is only called when it's on the line by itself or with a +- value 67 */ 68 void 69 donice(tchar **v) 70 { 71 tchar *cp; 72 int nval; 73 74 #ifdef TRACE 75 tprintf("TRACE- donice()\n"); 76 #endif 77 v++; 78 cp = *v++; 79 if (cp == 0) { 80 nval = 4; 81 } else if (*v == 0 && (cp[0] == '+' || cp[0] == '-')) { 82 nval = getn(cp); 83 } 84 (void) setpriority(PRIO_PROCESS, 0, nval); 85 } 86 87 void 88 ruadd(struct rusage *ru, struct rusage *ru2) 89 { 90 long *lp, *lp2; 91 int cnt; 92 /* 93 * The SunOS 4.x <sys/rusage.h> has ru_first and ru_last #defines 94 * as below. 95 * The SVR4/POSIX <sys/resource.h> does not have these defined for 96 * struct rusage 97 * The #defines below are here so that the original csh logic 98 * for ruadd remains clear now that there is no longer a private copy 99 * of the old <sys/resource.h> 100 */ 101 #define ru_first ru_ixrss 102 #define ru_last ru_nivcsw 103 104 #ifdef TRACE 105 tprintf("TRACE- ruadd()\n"); 106 #endif 107 tvadd(&ru->ru_utime, &ru2->ru_utime); 108 tvadd(&ru->ru_stime, &ru2->ru_stime); 109 if (ru2->ru_maxrss > ru->ru_maxrss) { 110 ru->ru_maxrss = ru2->ru_maxrss; 111 } 112 cnt = &ru->ru_last - &ru->ru_first + 1; 113 lp = &ru->ru_first; 114 lp2 = &ru2->ru_first; 115 do { 116 *lp++ += *lp2++; 117 } while (--cnt > 0); 118 } 119 120 void 121 prusage(struct rusage *r0, struct rusage *r1, struct timeval *e, 122 struct timeval *b) 123 { 124 #define pgtok(p) ((p * pgsize) / 1024) 125 static int pgsize; 126 127 time_t t = 128 (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 + 129 (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 + 130 (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 + 131 (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000; 132 tchar *cp; 133 int i; 134 struct varent *vp = adrof(S_time); 135 int ms = 136 (e->tv_sec - b->tv_sec) * 100 + (e->tv_usec - b->tv_usec) / 10000; 137 138 #ifdef TRACE 139 tprintf("TRACE- prusage()\n"); 140 #endif 141 if (pgsize == 0) { 142 pgsize = getpagesize(); 143 } 144 145 cp = S_USAGEFORMAT; /* "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww" */ 146 if (vp && vp->vec[0] && vp->vec[1]) { 147 cp = vp->vec[1]; 148 } 149 for (; *cp; cp++) { 150 if (*cp != '%') { 151 Putchar(*cp); 152 } else if (cp[1]) { 153 switch (*++cp) { 154 155 case 'U': 156 pdeltat(&r1->ru_utime, &r0->ru_utime); 157 break; 158 159 case 'S': 160 pdeltat(&r1->ru_stime, &r0->ru_stime); 161 break; 162 163 case 'E': 164 psecs_int(ms / 100); 165 break; 166 167 case 'P': 168 printf("%d%%", (int)(t * 100 / 169 ((ms ? ms : 1)))); 170 break; 171 172 case 'W': 173 i = r1->ru_nswap - r0->ru_nswap; 174 printf("%d", i); 175 break; 176 177 case 'X': 178 printf("%d", t == 0 ? 0 : 179 pgtok((r1->ru_ixrss - r0->ru_ixrss) / t)); 180 break; 181 182 case 'D': 183 printf("%d", t == 0 ? 0 : 184 pgtok((r1->ru_idrss + r1->ru_isrss- 185 (r0->ru_idrss + r0->ru_isrss)) / t)); 186 break; 187 188 case 'K': 189 printf("%d", t == 0 ? 0 : 190 pgtok(((r1->ru_ixrss + r1->ru_isrss + 191 r1->ru_idrss) - (r0->ru_ixrss + 192 r0->ru_idrss + r0->ru_isrss)) / t)); 193 break; 194 195 case 'M': 196 printf("%d", r1->ru_maxrss / 2); 197 break; 198 199 case 'F': 200 printf("%d", r1->ru_majflt - r0->ru_majflt); 201 break; 202 203 case 'R': 204 printf("%d", r1->ru_minflt - r0->ru_minflt); 205 break; 206 207 case 'I': 208 printf("%d", r1->ru_inblock - r0->ru_inblock); 209 break; 210 211 case 'O': 212 printf("%d", r1->ru_oublock - r0->ru_oublock); 213 break; 214 } 215 } 216 } 217 Putchar('\n'); 218 #undef pgtok 219 } 220 221 void 222 pdeltat(struct timeval *t1, struct timeval *t0) 223 { 224 struct timeval td; 225 226 #ifdef TRACE 227 tprintf("TRACE- pdeltat()\n"); 228 #endif 229 tvsub(&td, t1, t0); 230 /* change printf formats */ 231 printf("%d.%01d", td.tv_sec, td.tv_usec / 100000); 232 } 233 234 void 235 tvadd(struct timeval *tsum, struct timeval *t0) 236 { 237 238 #ifdef TRACE 239 tprintf("TRACE- tvadd()\n"); 240 #endif 241 tsum->tv_sec += t0->tv_sec; 242 tsum->tv_usec += t0->tv_usec; 243 if (tsum->tv_usec > 1000000) { 244 tsum->tv_sec++; 245 tsum->tv_usec -= 1000000; 246 } 247 } 248 249 void 250 tvsub(struct timeval *tdiff, struct timeval *t1, struct timeval *t0) 251 { 252 253 #ifdef TRACE 254 tprintf("TRACE- tvsub()\n"); 255 #endif 256 tdiff->tv_sec = t1->tv_sec - t0->tv_sec; 257 tdiff->tv_usec = t1->tv_usec - t0->tv_usec; 258 if (tdiff->tv_usec < 0) { 259 tdiff->tv_sec--; 260 tdiff->tv_usec += 1000000; 261 } 262 } 263