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port.c no longer required...individual functions that were in there are

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auto-generated via configure

individual functions in individual files
This commit is contained in:
Marc G. Fournier
1997-12-19 02:27:20 +00:00
parent 5379b84eff
commit 3ad815fc2a
4 changed files with 45 additions and 46 deletions
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47
src/backend/port/getrusage.c Normal file
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@@ -0,0 +1,47 @@
#include <math.h> /* for pow() prototype */
#include <errno.h>
#include "rusagestub.h"
#include "port-protos.h"
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);
}