Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libast/string/fmtelapsed.c
1810 views
1
/***********************************************************************

2
*                                                                      *

3
*               This software is part of the ast package               *

4
*          Copyright (c) 1985-2011 AT&T Intellectual Property          *

5
*                      and is licensed under the                       *

6
*                 Eclipse Public License, Version 1.0                  *

7
*                    by AT&T Intellectual Property                     *

8
*                                                                      *

9
*                A copy of the License is available at                 *

10
*          http://www.eclipse.org/org/documents/epl-v10.html           *

11
*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

12
*                                                                      *

13
*              Information and Software Systems Research               *

14
*                            AT&T Research                             *

15
*                           Florham Park NJ                            *

16
*                                                                      *

17
*                 Glenn Fowler <[email protected]>                  *

18
*                  David Korn <[email protected]>                   *

19
*                   Phong Vo <[email protected]>                    *

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


63