text: typedef unsigned int   uint;
  typedef unsigned short ushort;
  typedef unsigned char  uchar;
  typedef uint pde_t;
  
  struct children
  {
      int parentId;
      char *data;
  };
  
  struct time_data {
      int cpu_burst_time;
      int turn_around_time;
      int waiting_time;
  };
  
  //Scheduler modes
  enum schedulerMode{
    XV6,
    RR,
    PRIORITY,
    MLQ
  };
  
  struct ps{
    int pid;
    short state; 
    int priority;
  };
  
  struct ps_states{
    struct ps *systemPs; 
    int count;
  };
  
  