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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2021 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_SCRUB_ARRAY_H__
#define __XFS_SCRUB_ARRAY_H__
struct xfbma {
/* Underlying file that backs the array. */
struct xfile *xfile;
/* Number of array elements. */
uint64_t nr;
/* Maximum possible array size. */
uint64_t max_nr;
/* Size of an array element. */
size_t obj_size;
};
struct xfbma *xfbma_init(const char *descr, size_t obj_size);
void xfbma_destroy(struct xfbma *array);
int xfbma_get(struct xfbma *array, uint64_t idx, void *ptr);
int xfbma_set(struct xfbma *array, uint64_t idx, void *ptr);
int xfbma_insert_anywhere(struct xfbma *array, void *ptr);
bool xfbma_is_null(struct xfbma *array, void *ptr);
int xfbma_nullify(struct xfbma *array, uint64_t idx);
void xfbma_truncate(struct xfbma *array);
loff_t xfbma_bytes(struct xfbma *array);
/* Append an element to the array. */
static inline int xfbma_append(struct xfbma *array, void *ptr)
{
return xfbma_set(array, array->nr, ptr);
}
uint64_t xfbma_length(struct xfbma *array);
int xfbma_iter_get(struct xfbma *array, uint64_t *idx, void *rec);
typedef int (*xfbma_cmp_fn)(const void *a, const void *b);
int xfbma_sort(struct xfbma *array, xfbma_cmp_fn cmp_fn);
#define foreach_xfbma_item(array, i, rec) \
for ((i) = 0; (i) < xfbma_length((array)); (i)++) \
if (xfbma_get((array), (i), &(rec)) == 0 && \
!xfbma_is_null((array), &(rec)))
#endif /* __XFS_SCRUB_ARRAY_H__ */
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