xref: /openbmc/linux/tools/perf/util/thread_map.h (revision 68198dca)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_THREAD_MAP_H
3 #define __PERF_THREAD_MAP_H
4 
5 #include <sys/types.h>
6 #include <stdio.h>
7 #include <linux/refcount.h>
8 
9 struct thread_map_data {
10 	pid_t    pid;
11 	char	*comm;
12 };
13 
14 struct thread_map {
15 	refcount_t refcnt;
16 	int nr;
17 	struct thread_map_data map[];
18 };
19 
20 struct thread_map_event;
21 
22 struct thread_map *thread_map__new_dummy(void);
23 struct thread_map *thread_map__new_by_pid(pid_t pid);
24 struct thread_map *thread_map__new_by_tid(pid_t tid);
25 struct thread_map *thread_map__new_by_uid(uid_t uid);
26 struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
27 struct thread_map *thread_map__new_event(struct thread_map_event *event);
28 
29 struct thread_map *thread_map__get(struct thread_map *map);
30 void thread_map__put(struct thread_map *map);
31 
32 struct thread_map *thread_map__new_str(const char *pid,
33 		const char *tid, uid_t uid);
34 
35 struct thread_map *thread_map__new_by_tid_str(const char *tid_str);
36 
37 size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
38 
39 static inline int thread_map__nr(struct thread_map *threads)
40 {
41 	return threads ? threads->nr : 1;
42 }
43 
44 static inline pid_t thread_map__pid(struct thread_map *map, int thread)
45 {
46 	return map->map[thread].pid;
47 }
48 
49 static inline void
50 thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
51 {
52 	map->map[thread].pid = pid;
53 }
54 
55 static inline char *thread_map__comm(struct thread_map *map, int thread)
56 {
57 	return map->map[thread].comm;
58 }
59 
60 void thread_map__read_comms(struct thread_map *threads);
61 bool thread_map__has(struct thread_map *threads, pid_t pid);
62 int thread_map__remove(struct thread_map *threads, int idx);
63 #endif	/* __PERF_THREAD_MAP_H */
64