1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef __PERF_THREADS_H |
3 | #define __PERF_THREADS_H |
4 | |
5 | #include "hashmap.h" |
6 | #include "rwsem.h" |
7 | |
8 | struct thread; |
9 | |
10 | #define THREADS__TABLE_BITS 3 |
11 | #define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS) |
12 | |
13 | struct threads_table_entry { |
14 | /* Key is tid, value is struct thread. */ |
15 | struct hashmap shard; |
16 | struct rw_semaphore lock; |
17 | struct thread *last_match; |
18 | }; |
19 | |
20 | struct threads { |
21 | struct threads_table_entry table[THREADS__TABLE_SIZE]; |
22 | }; |
23 | |
24 | void threads__init(struct threads *threads); |
25 | void threads__exit(struct threads *threads); |
26 | size_t threads__nr(struct threads *threads); |
27 | struct thread *threads__find(struct threads *threads, pid_t tid); |
28 | struct thread *threads__findnew(struct threads *threads, pid_t pid, pid_t tid, bool *created); |
29 | void threads__remove_all_threads(struct threads *threads); |
30 | void threads__remove(struct threads *threads, struct thread *thread); |
31 | int threads__for_each_thread(struct threads *threads, |
32 | int (*fn)(struct thread *thread, void *data), |
33 | void *data); |
34 | |
35 | #endif /* __PERF_THREADS_H */ |
36 | |