struct processtop* update_proc(struct processtop* proc, int pid, int tid,
int ppid, int vpid, int vtid, int vppid, char *comm,
char *hostname);
void add_thread(struct processtop *parent, struct processtop *thread);
struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm,
struct processtop* update_proc(struct processtop* proc, int pid, int tid,
int ppid, int vpid, int vtid, int vppid, char *comm,
char *hostname);
void add_thread(struct processtop *parent, struct processtop *thread);
struct processtop* get_proc(struct lttngtop *ctx, int tid, char *comm,