diff options
Diffstat (limited to 'usr/src/lib/libast/common/string/fmtclock.c')
| -rw-r--r-- | usr/src/lib/libast/common/string/fmtclock.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/string/fmtclock.c b/usr/src/lib/libast/common/string/fmtclock.c new file mode 100644 index 0000000000..3caaeeafe7 --- /dev/null +++ b/usr/src/lib/libast/common/string/fmtclock.c @@ -0,0 +1,56 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* 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 clock() tics t + * return value length is at most 6 + */ + +#include <ast.h> +#include <tm.h> + +char* +fmtclock(register Sfulong_t t) +{ + register int u; + char* buf; + int z; + + static unsigned int clk_tck; + + if (!clk_tck && !(clk_tck = (unsigned int)strtoul(astconf("CLK_TCK", NiL, NiL), NiL, 10))) + clk_tck = 60; + if (t == 0) + return "0"; + if (t == ((Sfulong_t)~0)) + return "%"; + t = (t * 1000000) / clk_tck; + if (t < 1000) + u = 'u'; + else if ((t /= 1000) < 1000) + u = 'm'; + else + return fmtelapsed(t / 10, 100); + buf = fmtbuf(z = 7); + sfsprintf(buf, z, "%I*u%cs", sizeof(t), t, u); + return buf; +} |