rte_fbarray.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2017-2018 Intel Corporation
 */

#ifndef RTE_FBARRAY_H
#define RTE_FBARRAY_H

#include <stdio.h>

#include <rte_rwlock.h>

#ifdef __cplusplus
extern "C" {
#endif

#define RTE_FBARRAY_NAME_LEN 64

struct rte_fbarray {
    char name[RTE_FBARRAY_NAME_LEN]; 
    unsigned int count;              
    unsigned int len;                
    unsigned int elt_sz;             
    void *data;                      
    rte_rwlock_t rwlock;             
};

int
rte_fbarray_init(struct rte_fbarray *arr, const char *name, unsigned int len,
        unsigned int elt_sz);


int
rte_fbarray_attach(struct rte_fbarray *arr);


int
rte_fbarray_destroy(struct rte_fbarray *arr);


int
rte_fbarray_detach(struct rte_fbarray *arr);


void *
rte_fbarray_get(const struct rte_fbarray *arr, unsigned int idx);


int
rte_fbarray_find_idx(const struct rte_fbarray *arr, const void *elt);


int
rte_fbarray_set_used(struct rte_fbarray *arr, unsigned int idx);


int
rte_fbarray_set_free(struct rte_fbarray *arr, unsigned int idx);


int
rte_fbarray_is_used(struct rte_fbarray *arr, unsigned int idx);


int
rte_fbarray_find_next_free(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_next_used(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_next_n_free(struct rte_fbarray *arr, unsigned int start,
        unsigned int n);


int
rte_fbarray_find_next_n_used(struct rte_fbarray *arr, unsigned int start,
        unsigned int n);


int
rte_fbarray_find_contig_free(struct rte_fbarray *arr,
        unsigned int start);


int
rte_fbarray_find_contig_used(struct rte_fbarray *arr, unsigned int start);

int
rte_fbarray_find_prev_free(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_prev_used(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_prev_n_free(struct rte_fbarray *arr, unsigned int start,
        unsigned int n);


int
rte_fbarray_find_prev_n_used(struct rte_fbarray *arr, unsigned int start,
        unsigned int n);


int
rte_fbarray_find_rev_contig_free(struct rte_fbarray *arr,
        unsigned int start);


int
rte_fbarray_find_rev_contig_used(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_biggest_free(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_biggest_used(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_rev_biggest_free(struct rte_fbarray *arr, unsigned int start);


int
rte_fbarray_find_rev_biggest_used(struct rte_fbarray *arr, unsigned int start);


void
rte_fbarray_dump_metadata(struct rte_fbarray *arr, FILE *f);

#ifdef __cplusplus
}
#endif

#endif /* RTE_FBARRAY_H */