/***********************************************************************
* *
* This software is part of the ast package *
* Copyright (c) 1985-2011 AT&T Intellectual Property *
* and is licensed under the *
* Eclipse Public License, Version 1.0 *
* by AT&T Intellectual Property *
* *
* A copy of the License is available at *
* http://www.eclipse.org/org/documents/epl-v10.html *
* (with md5 checksum b35adb5213ca9657e911e9befb180842) *
* *
* Information and Software Systems Research *
* AT&T Research *
* Florham Park NJ *
* *
* Glenn Fowler <gsf@research.att.com> *
* David Korn <dgk@research.att.com> *
* Phong Vo <kpv@research.att.com> *
* *
***********************************************************************/
#pragma prototyped
/*
* return pointer to formatted elapsed time for u 1/n secs
* compatible with strelapsed()
* return value length is at most 7
*/
#include <ast.h>
char*
fmtelapsed(register unsigned long u, register int n)
{
register unsigned long t;
char* buf;
int z;
if (u == 0L)
return "0";
if (u == ~0L)
return "%";
buf = fmtbuf(z = 8);
t = u / n;
if (t < 60)
sfsprintf(buf, z, "%lu.%02lus", t, (u * 100 / n) % 100);
else if (t < 60*60)
sfsprintf(buf, z, "%lum%02lus", t / 60, t - (t / 60) * 60);
else if (t < 24*60*60)
sfsprintf(buf, z, "%luh%02lum", t / (60*60), (t - (t / (60*60)) * (60*60)) / 60);
else if (t < 7*24*60*60)
sfsprintf(buf, z, "%lud%02luh", t / (24*60*60), (t - (t / (24*60*60)) * (24*60*60)) / (60*60));
else if (t < 31*24*60*60)
sfsprintf(buf, z, "%luw%02lud", t / (7*24*60*60), (t - (t / (7*24*60*60)) * (7*24*60*60)) / (24*60*60));
else if (t < 365*24*60*60)
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));
else if (t < (365UL*4UL+1UL)*24UL*60UL*60UL)
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));
else
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));
return buf;
}