xref: /linux/tools/perf/util/thread_map.h (revision c0e297dc61f8d4453e07afbea1fa8d0e67cd4a34)
1 #ifndef __PERF_THREAD_MAP_H
2 #define __PERF_THREAD_MAP_H
3 
4 #include <sys/types.h>
5 #include <stdio.h>
6 #include <linux/atomic.h>
7 
8 struct thread_map_data {
9 	pid_t    pid;
10 	char	*comm;
11 };
12 
13 struct thread_map {
14 	atomic_t refcnt;
15 	int nr;
16 	struct thread_map_data map[];
17 };
18 
19 struct thread_map *thread_map__new_dummy(void);
20 struct thread_map *thread_map__new_by_pid(pid_t pid);
21 struct thread_map *thread_map__new_by_tid(pid_t tid);
22 struct thread_map *thread_map__new_by_uid(uid_t uid);
23 struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
24 
25 struct thread_map *thread_map__get(struct thread_map *map);
26 void thread_map__put(struct thread_map *map);
27 
28 struct thread_map *thread_map__new_str(const char *pid,
29 		const char *tid, uid_t uid);
30 
31 size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
32 
33 static inline int thread_map__nr(struct thread_map *threads)
34 {
35 	return threads ? threads->nr : 1;
36 }
37 
38 static inline pid_t thread_map__pid(struct thread_map *map, int thread)
39 {
40 	return map->map[thread].pid;
41 }
42 
43 static inline void
44 thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
45 {
46 	map->map[thread].pid = pid;
47 }
48 
49 static inline char *thread_map__comm(struct thread_map *map, int thread)
50 {
51 	return map->map[thread].comm;
52 }
53 
54 void thread_map__read_comms(struct thread_map *threads);
55 #endif	/* __PERF_THREAD_MAP_H */
56