1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate 31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate /* 34*0Sstevel@tonic-gate * Time a command 35*0Sstevel@tonic-gate */ 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include <stdio.h> 38*0Sstevel@tonic-gate #include <signal.h> 39*0Sstevel@tonic-gate #include <errno.h> 40*0Sstevel@tonic-gate #include <stdlib.h> 41*0Sstevel@tonic-gate #include <unistd.h> 42*0Sstevel@tonic-gate #include <libintl.h> 43*0Sstevel@tonic-gate #include <locale.h> 44*0Sstevel@tonic-gate #include <limits.h> 45*0Sstevel@tonic-gate #include <sys/types.h> 46*0Sstevel@tonic-gate #include <sys/times.h> 47*0Sstevel@tonic-gate #include <sys/wait.h> 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate /* 50*0Sstevel@tonic-gate * The following use of HZ/10 will work correctly only if HZ is a multiple 51*0Sstevel@tonic-gate * of 10. However the only values for HZ now in use are 100 for the 3B 52*0Sstevel@tonic-gate * and 60 for other machines. 53*0Sstevel@tonic-gate * 54*0Sstevel@tonic-gate * The first value was HZ/10. Since HZ should be gotten from sysconf() 55*0Sstevel@tonic-gate * it is dynamically initialized at entry to the main program. 56*0Sstevel@tonic-gate */ 57*0Sstevel@tonic-gate static clock_t quant[] = { 10, 10, 10, 6, 10, 6, 10, 10, 10 }; 58*0Sstevel@tonic-gate static char *pad = "000 "; 59*0Sstevel@tonic-gate static char *sep = "\0\0.\0:\0:\0\0"; 60*0Sstevel@tonic-gate static char *nsep = "\0\0.\0 \0 \0\0"; 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate static void usage(void); 63*0Sstevel@tonic-gate static void printt(char *, clock_t); 64*0Sstevel@tonic-gate extern char *sys_errlist[]; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate int 67*0Sstevel@tonic-gate main(int argc, char **argv) 68*0Sstevel@tonic-gate { 69*0Sstevel@tonic-gate struct tms buffer; 70*0Sstevel@tonic-gate pid_t p; 71*0Sstevel@tonic-gate extern int errno; 72*0Sstevel@tonic-gate int status; 73*0Sstevel@tonic-gate int pflag = 0; 74*0Sstevel@tonic-gate int c; 75*0Sstevel@tonic-gate int clock_tick = CLK_TCK; 76*0Sstevel@tonic-gate clock_t before, after; 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate (void) setlocale(LC_ALL, ""); 79*0Sstevel@tonic-gate #if !defined(TEXT_DOMAIN) 80*0Sstevel@tonic-gate #define TEXT_DOMAIN "SYS_TEST" 81*0Sstevel@tonic-gate #endif 82*0Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN); 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate while ((c = getopt(argc, argv, "p")) != EOF) 85*0Sstevel@tonic-gate switch (c) { 86*0Sstevel@tonic-gate case 'p': 87*0Sstevel@tonic-gate pflag++; 88*0Sstevel@tonic-gate break; 89*0Sstevel@tonic-gate case '?': 90*0Sstevel@tonic-gate usage(); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate argc -= optind; 94*0Sstevel@tonic-gate argv += optind; 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate /* 97*0Sstevel@tonic-gate * time(1) is only accurate to a tenth of a second. We need to 98*0Sstevel@tonic-gate * determine the number of clock ticks in a tenth of a second in 99*0Sstevel@tonic-gate * order to later divide away what we don't care about. 100*0Sstevel@tonic-gate */ 101*0Sstevel@tonic-gate quant[0] = clock_tick/10; 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate before = times(&buffer); 104*0Sstevel@tonic-gate if (argc < 1) 105*0Sstevel@tonic-gate usage(); 106*0Sstevel@tonic-gate p = fork(); 107*0Sstevel@tonic-gate if (p == (pid_t)-1) { 108*0Sstevel@tonic-gate perror("time"); 109*0Sstevel@tonic-gate exit(2); 110*0Sstevel@tonic-gate } 111*0Sstevel@tonic-gate if (p == (pid_t)0) { 112*0Sstevel@tonic-gate (void) execvp(argv[0], &argv[0]); 113*0Sstevel@tonic-gate perror(argv[0]); 114*0Sstevel@tonic-gate if (errno == ENOENT) 115*0Sstevel@tonic-gate exit(127); 116*0Sstevel@tonic-gate else 117*0Sstevel@tonic-gate exit(126); 118*0Sstevel@tonic-gate } 119*0Sstevel@tonic-gate (void) signal(SIGINT, SIG_IGN); 120*0Sstevel@tonic-gate (void) signal(SIGQUIT, SIG_IGN); 121*0Sstevel@tonic-gate while (wait(&status) != p); 122*0Sstevel@tonic-gate if ((status & 0377) != '\0') 123*0Sstevel@tonic-gate (void) fprintf(stderr, "time: %s\n", 124*0Sstevel@tonic-gate gettext("command terminated abnormally.")); 125*0Sstevel@tonic-gate after = times(&buffer); 126*0Sstevel@tonic-gate (void) fprintf(stderr, "\n"); 127*0Sstevel@tonic-gate if (pflag) 128*0Sstevel@tonic-gate (void) fprintf(stderr, "real %.2f\nuser %.2f\nsys %.2f\n", 129*0Sstevel@tonic-gate (double)(after-before)/clock_tick, 130*0Sstevel@tonic-gate (double)buffer.tms_cutime/clock_tick, 131*0Sstevel@tonic-gate (double)buffer.tms_cstime/clock_tick); 132*0Sstevel@tonic-gate else { 133*0Sstevel@tonic-gate printt("real", (after-before)); 134*0Sstevel@tonic-gate printt("user", buffer.tms_cutime); 135*0Sstevel@tonic-gate printt("sys ", buffer.tms_cstime); 136*0Sstevel@tonic-gate } 137*0Sstevel@tonic-gate 138*0Sstevel@tonic-gate return ((status & 0xff00) 139*0Sstevel@tonic-gate ? (status >> 8) 140*0Sstevel@tonic-gate : ((status & 0x00ff) ? ((status & ~WCOREFLG) | 0200) : 0)); 141*0Sstevel@tonic-gate } 142*0Sstevel@tonic-gate 143*0Sstevel@tonic-gate 144*0Sstevel@tonic-gate static void 145*0Sstevel@tonic-gate printt(char *s, clock_t a) 146*0Sstevel@tonic-gate { 147*0Sstevel@tonic-gate int i; 148*0Sstevel@tonic-gate char digit[9]; 149*0Sstevel@tonic-gate char c; 150*0Sstevel@tonic-gate int nonzero; 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate a /= quant[0]; /* Divide away the accuracy we don't care about */ 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate /* 155*0Sstevel@tonic-gate * We now have the number of tenths of seconds elapsed in terms of 156*0Sstevel@tonic-gate * ticks. Loop through to determine the actual digits. 157*0Sstevel@tonic-gate */ 158*0Sstevel@tonic-gate for (i = 1; i < 9; i++) { 159*0Sstevel@tonic-gate digit[i] = a % quant[i]; 160*0Sstevel@tonic-gate a /= quant[i]; 161*0Sstevel@tonic-gate } 162*0Sstevel@tonic-gate (void) fprintf(stderr, s); 163*0Sstevel@tonic-gate nonzero = 0; 164*0Sstevel@tonic-gate while (--i > 0) { 165*0Sstevel@tonic-gate c = (digit[i] != 0) ? digit[i]+'0' : (nonzero ? '0': pad[i]); 166*0Sstevel@tonic-gate if (c != '\0') 167*0Sstevel@tonic-gate (void) putc(c, stderr); 168*0Sstevel@tonic-gate nonzero |= digit[i]; 169*0Sstevel@tonic-gate c = nonzero?sep[i]:nsep[i]; 170*0Sstevel@tonic-gate if (c != '\0') 171*0Sstevel@tonic-gate (void) putc(c, stderr); 172*0Sstevel@tonic-gate } 173*0Sstevel@tonic-gate (void) fprintf(stderr, "\n"); 174*0Sstevel@tonic-gate } 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate static void 177*0Sstevel@tonic-gate usage(void) 178*0Sstevel@tonic-gate { 179*0Sstevel@tonic-gate (void) fprintf(stderr, 180*0Sstevel@tonic-gate gettext("usage: time [-p] utility [argument...]\n")); 181*0Sstevel@tonic-gate exit(1); 182*0Sstevel@tonic-gate } 183