49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_MUTEX_H
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#define __PERF_MUTEX_H
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#include <pthread.h>
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#include <stdbool.h>
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/*
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* A wrapper around the mutex implementation that allows perf to error check
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* usage, etc.
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*/
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struct mutex {
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pthread_mutex_t lock;
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};
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/* A wrapper around the condition variable implementation. */
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struct cond {
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pthread_cond_t cond;
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};
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/* Default initialize the mtx struct. */
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void mutex_init(struct mutex *mtx);
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/*
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* Initialize the mtx struct and set the process-shared rather than default
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* process-private attribute.
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*/
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void mutex_init_pshared(struct mutex *mtx);
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void mutex_destroy(struct mutex *mtx);
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void mutex_lock(struct mutex *mtx);
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void mutex_unlock(struct mutex *mtx);
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/* Tries to acquire the lock and returns true on success. */
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bool mutex_trylock(struct mutex *mtx);
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/* Default initialize the cond struct. */
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void cond_init(struct cond *cnd);
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/*
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* Initialize the cond struct and specify the process-shared rather than default
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* process-private attribute.
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*/
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void cond_init_pshared(struct cond *cnd);
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void cond_destroy(struct cond *cnd);
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void cond_wait(struct cond *cnd, struct mutex *mtx);
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void cond_signal(struct cond *cnd);
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void cond_broadcast(struct cond *cnd);
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#endif /* __PERF_MUTEX_H */
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