1N/A/***********************************************************************
1N/A* *
1N/A* This software is part of the ast package *
1N/A* Copyright (c) 1985-2011 AT&T Intellectual Property *
1N/A* and is licensed under the *
1N/A* Common Public License, Version 1.0 *
1N/A* by AT&T Intellectual Property *
1N/A* *
1N/A* A copy of the License is available at *
1N/A* http://www.opensource.org/licenses/cpl1.0.txt *
1N/A* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
1N/A* *
1N/A* Information and Software Systems Research *
1N/A* AT&T Research *
1N/A* Florham Park NJ *
1N/A* *
1N/A* Glenn Fowler <gsf@research.att.com> *
1N/A* David Korn <dgk@research.att.com> *
1N/A* Phong Vo <kpv@research.att.com> *
1N/A* *
1N/A***********************************************************************/
1N/A#pragma prototyped
1N/A/*
1N/A * return pointer to formatted clock() tics t
1N/A * return value length is at most 6
1N/A */
1N/A
1N/A#include <ast.h>
1N/A#include <tm.h>
1N/A
1N/Achar*
1N/Afmtclock(register Sfulong_t t)
1N/A{
1N/A register int u;
1N/A char* buf;
1N/A int z;
1N/A
1N/A static unsigned int clk_tck;
1N/A
1N/A if (!clk_tck)
1N/A {
1N/A#ifdef CLOCKS_PER_SEC
1N/A clk_tck = CLOCKS_PER_SEC;
1N/A#else
1N/A if (!(clk_tck = (unsigned int)strtoul(astconf("CLK_TCK", NiL, NiL), NiL, 10)))
1N/A clk_tck = 60;
1N/A#endif
1N/A }
1N/A if (t == 0)
1N/A return "0";
1N/A if (t == ((Sfulong_t)~0))
1N/A return "%";
1N/A t = (t * 1000000) / clk_tck;
1N/A if (t < 1000)
1N/A u = 'u';
1N/A else if ((t /= 1000) < 1000)
1N/A u = 'm';
1N/A else
1N/A return fmtelapsed(t / 10, 100);
1N/A buf = fmtbuf(z = 7);
1N/A sfsprintf(buf, z, "%I*u%cs", sizeof(t), t, u);
1N/A return buf;
1N/A}