blob: f3c6b8a7943034f72116749dac5ed87cbf9d235a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
/*-------------------------------------------------------------------------
*
* port.c--
* SunOS5-specific routines
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/port/sparc_solaris/Attic/port.c,v 1.1.1.1 1996/07/09 06:21:45 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#include <math.h> /* for pow() prototype */
#include <errno.h>
#include "rusagestub.h"
long
random()
{
return(lrand48());
}
void
srandom(int seed)
{
srand48((long int) seed);
}
int
getrusage(int who, struct rusage *rusage)
{
struct tms tms;
register int tick_rate = CLK_TCK; /* ticks per second */
clock_t u, s;
if (rusage == (struct rusage *) NULL) {
errno = EFAULT;
return(-1);
}
if (times(&tms) < 0) {
/* errno set by times */
return(-1);
}
switch (who) {
case RUSAGE_SELF:
u = tms.tms_utime;
s = tms.tms_stime;
break;
case RUSAGE_CHILDREN:
u = tms.tms_cutime;
s = tms.tms_cstime;
break;
default:
errno = EINVAL;
return(-1);
}
#define TICK_TO_SEC(T, RATE) ((T)/(RATE))
#define TICK_TO_USEC(T,RATE) (((T)%(RATE)*1000000)/RATE)
rusage->ru_utime.tv_sec = TICK_TO_SEC(u, tick_rate);
rusage->ru_utime.tv_usec = TICK_TO_USEC(u, tick_rate);
rusage->ru_stime.tv_sec = TICK_TO_SEC(s, tick_rate);
rusage->ru_stime.tv_usec = TICK_TO_USEC(u, tick_rate);
return(0);
}
|
