1*e7be843bSPierre Pronchery /* 2*e7be843bSPierre Pronchery * Copyright 2023-2024 The OpenSSL Project Authors. All Rights Reserved. 3*e7be843bSPierre Pronchery * 4*e7be843bSPierre Pronchery * Licensed under the Apache License 2.0 (the "License"). You may not use 5*e7be843bSPierre Pronchery * this file except in compliance with the License. You can obtain a copy 6*e7be843bSPierre Pronchery * in the file LICENSE in the source distribution or at 7*e7be843bSPierre Pronchery * https://www.openssl.org/source/license.html 8*e7be843bSPierre Pronchery */ 9*e7be843bSPierre Pronchery 10*e7be843bSPierre Pronchery #ifndef OPENSSL_RCU_H 11*e7be843bSPierre Pronchery # define OPENSSL_RCU_H 12*e7be843bSPierre Pronchery # pragma once 13*e7be843bSPierre Pronchery 14*e7be843bSPierre Pronchery #include "crypto/context.h" 15*e7be843bSPierre Pronchery 16*e7be843bSPierre Pronchery typedef void (*rcu_cb_fn)(void *data); 17*e7be843bSPierre Pronchery 18*e7be843bSPierre Pronchery typedef struct rcu_lock_st CRYPTO_RCU_LOCK; 19*e7be843bSPierre Pronchery 20*e7be843bSPierre Pronchery CRYPTO_RCU_LOCK *ossl_rcu_lock_new(int num_writers, OSSL_LIB_CTX *ctx); 21*e7be843bSPierre Pronchery void ossl_rcu_lock_free(CRYPTO_RCU_LOCK *lock); 22*e7be843bSPierre Pronchery void ossl_rcu_read_lock(CRYPTO_RCU_LOCK *lock); 23*e7be843bSPierre Pronchery void ossl_rcu_write_lock(CRYPTO_RCU_LOCK *lock); 24*e7be843bSPierre Pronchery void ossl_rcu_write_unlock(CRYPTO_RCU_LOCK *lock); 25*e7be843bSPierre Pronchery void ossl_rcu_read_unlock(CRYPTO_RCU_LOCK *lock); 26*e7be843bSPierre Pronchery void ossl_synchronize_rcu(CRYPTO_RCU_LOCK *lock); 27*e7be843bSPierre Pronchery int ossl_rcu_call(CRYPTO_RCU_LOCK *lock, rcu_cb_fn cb, void *data); 28*e7be843bSPierre Pronchery void *ossl_rcu_uptr_deref(void **p); 29*e7be843bSPierre Pronchery void ossl_rcu_assign_uptr(void **p, void **v); 30*e7be843bSPierre Pronchery #define ossl_rcu_deref(p) ossl_rcu_uptr_deref((void **)p) 31*e7be843bSPierre Pronchery #define ossl_rcu_assign_ptr(p,v) ossl_rcu_assign_uptr((void **)p, (void **)v) 32*e7be843bSPierre Pronchery 33*e7be843bSPierre Pronchery #endif 34