process_group.h

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#ifndef __PROCESS_GROUP_H
 
#define __PROCESS_GROUP_H
 
#include "process_iterator.h"
 
#include "list.h"
 
#define PIDHASH_SZ 1024
#define pid_hashfn(x) ((((x) >> 8) ^ (x)) & (PIDHASH_SZ - 1))
 
struct process_group
{
  //hashtable with all the processes (array of struct list of struct process)
  struct list *proctable[PIDHASH_SZ];
  struct list *proclist;
  pid_t target_pid;
  int include_children;
  struct timeval last_update;
};
 
int init_process_group(struct process_group *pgroup, int target_pid, int include_children);
 
void update_process_group(struct process_group *pgroup);
 
int close_process_group(struct process_group *pgroup);
 
int find_process_by_pid(pid_t pid);
 
int find_process_by_name(const char *process_name);
 
int remove_process(struct process_group *pgroup, int pid);
 
#endif