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#ifndef UNJA_HASHMAP_H
#define UNJA_HASHMAP_H
#include <stdbool.h>
#include <sys/types.h>
#include "slice.h"
#ifndef HASHMAP_CAP
#define HASHMAP_CAP 32
#endif
typedef void (hmap_cb)(const void *key, void *value);
struct hmap {
struct hnode **buckets;
size_t cap;
size_t size;
};
/* allocate a new hmap */
struct hmap *hmap_new_with_cap(size_t cap);
#define hmap_new() hmap_new_with_cap(HASHMAP_CAP)
/*
* Inserts a key-value pair into the map. Returns NULL if map did not have key,
* old value if it did.
*/
void *hmap_sets(struct hmap *hm, struct slice key, void *value);
void *hmap_set(struct hmap *hm, const char *key, void *value);
/* Returns a pointer to the value corresponding to the key. */
void *hmap_gets(struct hmap *hm, const struct slice *key);
void *hmap_get(struct hmap *hm, const char *key);
/*
* Removes a key from the map, returning the value at the key if the key was
* previously in the map.
*/
void *hmap_removes(struct hmap *hm, const struct slice *key);
void *hmap_remove(struct hmap *hm, const char *key);
/* Iterate over keys in the hmap */
void hmap_walk(struct hmap *hm, hmap_cb);
/* free hmap related memory calling a function before freeing each node */
void hmap_destroy(struct hmap *hm, hmap_cb cb);
/* free hmap related memory */
void hmap_free(struct hmap *hm);
#endif
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