Accessing a struct inside struct

cxel91a · 09-17-2003, 03:31 PM

How can I call the ru_stime and ru_ctime members. Since the both belong to struct timeval inside struct rusage.

#include<iostream>
using namespace std;
#include<unistd.h>
#include<sys/resource.h>
#include<errno.h>
#include<sys/time.h>

int main()
{
struct rusage* resource= new struct rusage;

if( getrusage(RUSAGE_SELF, resource) == -1 ){
perror("getrusage error");
exit(1);
}

cout<<"The ru_stime is "<<resource->timeval.ru_stime<<endl;
cout<<"The ru_utime is "<<resource->timeval.ru_utime<<endl;
cout<<endl;

return 0;
}

crabboy · 09-17-2003, 04:24 PM

You needed to sepcify the member of struct timeval. They are tv_sec and tv_usec.

Code:

#include <stdio.h>
#include<iostream>
#include<unistd.h>
#include<sys/resource.h>
#include<errno.h>
#include<sys/time.h>

using namespace std;

int main()
{
   struct rusage resource;

   if( getrusage(RUSAGE_SELF, &resource) == -1 )
   {
      perror("getrusage error");
      exit(1);
   }

   cout << "The ru_stime.tv_sec is "<< resource.ru_stime.tv_sec <<endl;
   cout << "The ru_stime.tv_usec is "<< resource.ru_stime.tv_usec <<endl;
   cout << "The ru_utime.tv_sec is "<< resource.ru_utime.tv_sec <<endl;
   cout << "The ru_utime.tv_usec is "<< resource.ru_utime.tv_usec <<endl;
   cout << endl;

   return 0;
}