35 lines
1 KiB
C
35 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_THREADS_H
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#define __PERF_THREADS_H
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#include "hashmap.h"
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#include "rwsem.h"
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struct thread;
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#define THREADS__TABLE_BITS 3
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#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
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struct threads_table_entry {
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/* Key is tid, value is struct thread. */
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struct hashmap shard;
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struct rw_semaphore lock;
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struct thread *last_match;
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};
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struct threads {
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struct threads_table_entry table[THREADS__TABLE_SIZE];
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};
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void threads__init(struct threads *threads);
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void threads__exit(struct threads *threads);
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size_t threads__nr(struct threads *threads);
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struct thread *threads__find(struct threads *threads, pid_t tid);
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struct thread *threads__findnew(struct threads *threads, pid_t pid, pid_t tid, bool *created);
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void threads__remove_all_threads(struct threads *threads);
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void threads__remove(struct threads *threads, struct thread *thread);
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int threads__for_each_thread(struct threads *threads,
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int (*fn)(struct thread *thread, void *data),
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void *data);
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#endif /* __PERF_THREADS_H */
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