1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2009 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #pragma prototyped 23 /* 24 * return pointer to formatted elapsed time for u 1/n secs 25 * compatible with strelapsed() 26 * return value length is at most 7 27 */ 28 29 #include <ast.h> 30 31 char* 32 fmtelapsed(register unsigned long u, register int n) 33 { 34 register unsigned long t; 35 char* buf; 36 int z; 37 38 if (u == 0L) 39 return "0"; 40 if (u == ~0L) 41 return "%"; 42 buf = fmtbuf(z = 8); 43 t = u / n; 44 if (t < 60) 45 sfsprintf(buf, z, "%lu.%02lus", t, (u * 100 / n) % 100); 46 else if (t < 60*60) 47 sfsprintf(buf, z, "%lum%02lus", t / 60, t - (t / 60) * 60); 48 else if (t < 24*60*60) 49 sfsprintf(buf, z, "%luh%02lum", t / (60*60), (t - (t / (60*60)) * (60*60)) / 60); 50 else if (t < 7*24*60*60) 51 sfsprintf(buf, z, "%lud%02luh", t / (24*60*60), (t - (t / (24*60*60)) * (24*60*60)) / (60*60)); 52 else if (t < 31*24*60*60) 53 sfsprintf(buf, z, "%luw%02lud", t / (7*24*60*60), (t - (t / (7*24*60*60)) * (7*24*60*60)) / (24*60*60)); 54 else if (t < 365*24*60*60) 55 sfsprintf(buf, z, "%luM%02lud", (t * 12) / (365*24*60*60), ((t * 12) - ((t * 12) / (365*24*60*60)) * (365*24*60*60)) / (12*24*60*60)); 56 else if (t < (365UL*4UL+1UL)*24UL*60UL*60UL) 57 sfsprintf(buf, z, "%luY%02luM", t / (365*24*60*60), ((t - (t / (365*24*60*60)) * (365*24*60*60)) * 5) / (152 * 24 * 60 * 60)); 58 else 59 sfsprintf(buf, z, "%luY%02luM", (t * 4) / ((365UL*4UL+1UL)*24UL*60UL*60UL), (((t * 4) - ((t * 4) / ((365UL*4UL+1UL)*24UL*60UL*60UL)) * ((365UL*4UL+1UL)*24UL*60UL*60UL)) * 5) / ((4 * 152 + 1) * 24 * 60 * 60)); 60 return buf; 61 } 62