xref: /linux/tools/perf/util/thread_map.h (revision bd628c1bed7902ec1f24ba0fe70758949146abbe)
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 	int err_thread;
18 	struct thread_map_data map[];
19 };
20 
21 struct thread_map_event;
22 
23 struct thread_map *thread_map__new_dummy(void);
24 struct thread_map *thread_map__new_by_pid(pid_t pid);
25 struct thread_map *thread_map__new_by_tid(pid_t tid);
26 struct thread_map *thread_map__new_by_uid(uid_t uid);
27 struct thread_map *thread_map__new_all_cpus(void);
28 struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
29 struct thread_map *thread_map__new_event(struct thread_map_event *event);
30 
31 struct thread_map *thread_map__get(struct thread_map *map);
32 void thread_map__put(struct thread_map *map);
33 
34 struct thread_map *thread_map__new_str(const char *pid,
35 		const char *tid, uid_t uid, bool all_threads);
36 
37 struct thread_map *thread_map__new_by_tid_str(const char *tid_str);
38 
39 size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
40 
41 static inline int thread_map__nr(struct thread_map *threads)
42 {
43 	return threads ? threads->nr : 1;
44 }
45 
46 static inline pid_t thread_map__pid(struct thread_map *map, int thread)
47 {
48 	return map->map[thread].pid;
49 }
50 
51 static inline void
52 thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
53 {
54 	map->map[thread].pid = pid;
55 }
56 
57 static inline char *thread_map__comm(struct thread_map *map, int thread)
58 {
59 	return map->map[thread].comm;
60 }
61 
62 void thread_map__read_comms(struct thread_map *threads);
63 bool thread_map__has(struct thread_map *threads, pid_t pid);
64 int thread_map__remove(struct thread_map *threads, int idx);
65 #endif	/* __PERF_THREAD_MAP_H */
66