36 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PERF_THREADS_H3#define __PERF_THREADS_H4 5#include "hashmap.h"6#include "rwsem.h"7 8struct thread;9 10#define THREADS__TABLE_BITS 311#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)12 13struct 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 20struct threads {21 struct threads_table_entry table[THREADS__TABLE_SIZE];22};23 24void threads__init(struct threads *threads);25void threads__exit(struct threads *threads);26size_t threads__nr(struct threads *threads);27struct thread *threads__find(struct threads *threads, pid_t tid);28struct thread *threads__findnew(struct threads *threads, pid_t pid, pid_t tid, bool *created);29void threads__remove_all_threads(struct threads *threads);30void threads__remove(struct threads *threads, struct thread *thread);31int 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