Subversion Repositories planix.SVN

Rev

Rev 2 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
/*
2 
 * high-watermark measurements
3 
 */
4 
#include	"u.h"
5 
#include	"../port/lib.h"
6 
#include	"mem.h"
7 
#include	"dat.h"
8 
#include	"fns.h"
9 
 
10 
void
11 
initmark(Watermark *wp, int max, char *name)
12 
{
13 
	memset(wp, 0, sizeof *wp);
14 
	wp->max = max;
15 
	wp->name = name;
16 
}
17 
 
18 
void
19 
notemark(Watermark *wp, int val)
20 
{
21 
	/* enforce obvious limits */
22 
	if (val < 0)
23 
		val = 0;
24 
	else if (val > wp->max)
25 
		val = wp->max;
26 
 
27 
	if (val > wp->highwater) {
28 
		wp->highwater = val;
29 
		if (val == wp->max && wp->curr < val)
30 
			wp->hitmax++;
31 
	}
32 
	wp->curr = val;
33 
}
34 
 
35 
char *
36 
seprintmark(char *buf, char *ebuf, Watermark *wp)
37 
{
38 
	return seprint(buf, ebuf, "%s:\thighwater %d/%d curr %d hitmax %d\n",
39 
		wp->name, wp->highwater, wp->max, wp->curr, wp->hitmax);
40 
}