/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2023 Red Hat
*/
#ifndef VDO_INT_MAP_H
#define VDO_INT_MAP_H
#include <linux/compiler.h>
#include <linux/types.h>
/**
* DOC : int_map
*
* An int_map associates pointers ( void * ) with integer keys ( u64 ) . NULL pointer values are
* not supported .
*
* The map is implemented as hash table , which should provide constant - time insert , query , and
* remove operations , although the insert may occasionally grow the table , which is linear in the
* number of entries in the map . The table will grow as needed to hold new entries , but will not
* shrink as entries are removed .
*/
struct int_map;
int __must_check vdo_int_map_create(size_t initial_capacity, struct int_map **map_ptr);
void vdo_int_map_free(struct int_map *map);
size_t vdo_int_map_size(const struct int_map *map);
void *vdo_int_map_get(struct int_map *map, u64 key);
int __must_check vdo_int_map_put(struct int_map *map, u64 key, void *new_value,
bool update, void **old_value_ptr);
void *vdo_int_map_remove(struct int_map *map, u64 key);
#endif /* VDO_INT_MAP_H */
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(vorverarbeitet am 2026-09-29)
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