#define _XOPEN_SOURCE 500

#include "cpuUtil.h"

void get_cpu_usage(int cpu_cores, char buf[PANE_BUF], int *cpu_utils, int i,
                   int tdelay) {
  ///_|> descry: return total cpu usage over a period
  ///_|> cpu_cores: number of cpu cores to consider in calculations
  ///_|> buf: buffer to write pane to
  ///_|> cpu_utils: data array
  ///_|> i: current datapoint in data array
  ///_|> returning: void

  double pre_cpu_util = read_cpu_util();
  usleep(tdelay);
  // Augmented the given algo
  double cpu_util = (read_cpu_util() - pre_cpu_util) / (cpu_cores * tdelay);

  cpu_utils[i] = min((int)ceil(1e5 * cpu_util), 10.0);

  draw_cpu_title(buf, min(cpu_util * 1e6, 100.0));
  draw_graph(buf, cpu_utils, i);
}