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/*
* Copyright 2023-2025 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#ifndef OPENSSL_RCU_H
# define OPENSSL_RCU_H
# pragma once
#include "crypto/context.h"
typedef void (*rcu_cb_fn)(void *data);
typedef struct rcu_lock_st CRYPTO_RCU_LOCK;
CRYPTO_RCU_LOCK *ossl_rcu_lock_new(int num_writers, OSSL_LIB_CTX *ctx);
void ossl_rcu_lock_free(CRYPTO_RCU_LOCK *lock);
int ossl_rcu_read_lock(CRYPTO_RCU_LOCK *lock);
void ossl_rcu_write_lock(CRYPTO_RCU_LOCK *lock);
void ossl_rcu_write_unlock(CRYPTO_RCU_LOCK *lock);
void ossl_rcu_read_unlock(CRYPTO_RCU_LOCK *lock);
void ossl_synchronize_rcu(CRYPTO_RCU_LOCK *lock);
int ossl_rcu_call(CRYPTO_RCU_LOCK *lock, rcu_cb_fn cb, void *data);
void *ossl_rcu_uptr_deref(void **p);
void ossl_rcu_assign_uptr(void **p, void **v);
#define ossl_rcu_deref(p) ossl_rcu_uptr_deref((void **)p)
#define ossl_rcu_assign_ptr(p,v) ossl_rcu_assign_uptr((void **)p, (void **)v)
#endif
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