C library for *nix system statistics

CoderMan · 02-01-2009, 07:58 PM

Is there a convenient C library out there for getting *nix system statistics, like RAM usage, disk usage, CPU load, etc.? I've heard that these stats are all in the proc files, but was hoping to avoid writing code for parsing all that if someone else already had.

Guitarist88 · 02-01-2009, 09:40 PM

I think there is something like <sys/proc.h>.

paulsm4 · 02-01-2009, 11:26 PM

Here's a naive, simplistic example of the enormous amount of work needed to "parse" the Linux procfs:

Code:

#include <stdio.h>

int
main (int argc, char *argv[])
{
  FILE *fp = fopen ("/proc/loadavg", "r");
  float a = 0;
  if (!fp)
  {
    perror ("err");
    return 1;
  }
  fscanf (fp, "%f", &a);
  printf ("load avg= %f\n", a);
  fclose (fp);
  return 0;
}

And here's a good tutorial on the subject:
http://www.linuxjournal.com/article/177

'Hope that helps .. PSM