7a33572057
The private headers are compiled internally with a C compiler. Thus extern "C" declaration is useless in such files. Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
59 lines
1.6 KiB
C
59 lines
1.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) 2020 Arm Limited
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*/
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#ifndef _RTE_RCU_QSBR_PVT_H_
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#define _RTE_RCU_QSBR_PVT_H_
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/**
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* This file is private to the RCU library. It should not be included
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* by the user of this library.
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*/
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#include <rte_ring.h>
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#include <rte_ring_elem.h>
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#include "rte_rcu_qsbr.h"
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/* Defer queue structure.
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* This structure holds the defer queue. The defer queue is used to
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* hold the deleted entries from the data structure that are not
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* yet freed.
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*/
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struct rte_rcu_qsbr_dq {
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struct rte_rcu_qsbr *v; /**< RCU QSBR variable used by this queue.*/
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struct rte_ring *r; /**< RCU QSBR defer queue. */
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uint32_t size;
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/**< Number of elements in the defer queue */
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uint32_t esize;
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/**< Size (in bytes) of data, including the token, stored on the
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* defer queue.
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*/
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uint32_t trigger_reclaim_limit;
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/**< Trigger automatic reclamation after the defer queue
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* has at least these many resources waiting.
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*/
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uint32_t max_reclaim_size;
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/**< Reclaim at the max these many resources during auto
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* reclamation.
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*/
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rte_rcu_qsbr_free_resource_t free_fn;
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/**< Function to call to free the resource. */
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void *p;
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/**< Pointer passed to the free function. Typically, this is the
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* pointer to the data structure to which the resource to free
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* belongs.
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*/
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};
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/* Internal structure to represent the element on the defer queue.
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* Use alias as a character array is type casted to a variable
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* of this structure type.
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*/
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typedef struct {
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uint64_t token; /**< Token */
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uint8_t elem[0]; /**< Pointer to user element */
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} __attribute__((__may_alias__)) __rte_rcu_qsbr_dq_elem_t;
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#endif /* _RTE_RCU_QSBR_PVT_H_ */
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