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/* $Id: resource.c 6135 2003-01-19 01:15:40Z rra $
**
*/
#include "config.h"
#include "clibrary.h"
#include "libinn.h"
#ifdef HAVE_GETRUSAGE
#include <sys/time.h>
#include <sys/resource.h>
#define TIMEVALasDOUBLE(t) \
((double)(t).tv_sec + ((double)(t).tv_usec) / 1000000.0)
int getrusage(int who, struct rusage *rusage);
int GetResourceUsage(double *usertime, double *systime)
{
struct rusage R;
if (getrusage(RUSAGE_SELF, &R) < 0)
return -1;
*usertime = TIMEVALasDOUBLE(R.ru_utime);
*systime = TIMEVALasDOUBLE(R.ru_stime);
return 0;
}
#else /* HAVE_GETRUSAGE */
#include <sys/param.h>
#include <sys/times.h>
#if !defined(HZ)
#define HZ 60
#endif /* !defined(HZ) */
#define CPUTIMEasDOUBLE(t1, t2) ((double)(t1 + t2) / (double)HZ)
int GetResourceUsage(double *usertime, double *systime)
{
struct tms T;
if (times(&T) == -1)
return -1;
*usertime = CPUTIMEasDOUBLE(T.tms_utime, T.tms_cutime);
*systime = CPUTIMEasDOUBLE(T.tms_stime, T.tms_cstime);
return 0;
}
#endif /* !HAVE_GETRUSAGE */
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