The os_this_process class has several functions that return limits associated with a particular resource. To change a resource limit, a process must perform these steps.

Only an object with superuser privileges can change the hard limit of a resource.

The following example displays the CPU and open file resource limits. The soft limit of open file descriptors is also increased.

Example <ospace/unix/examples/ resourc1.cpp>


  #include <iostream>
#include <ospace/unix.h>

int
main()
  {
  os_unix_toolkit initialize;

  cout << "core_resource(): " << os_this_process::core_resource();
  cout << endl;

  os_resource max_files = os_this_process::open_file_resource();
  cout << "open_file_resource(): " << max_files << endl;

  max_files.soft_limit( 150 );
  os_this_process::open_file_resource( max_files );
  cout << "open_file_resource(): ";
  cout << os_this_process::open_file_resource() << endl;

  return 0;
  }

core_resource(): os_resource( infinity out of infinity )
open_file_resource(): os_resource( 64 out of 1024 )
open_file_resource(): os_resource( 150 out of 1024 )