36,6 → 36,8 |
#define BTREE_M 5 |
#define BTREE_MAX_KEYS (BTREE_M - 1) |
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typedef __u64 btree_key_t; |
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/** B-tree node structure. */ |
struct btree_node { |
/** Number of keys. */ |
42,7 → 44,7 |
count_t keys; |
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/** Keys. We currently support only single keys. Additional room for one extra key is provided. */ |
__native key[BTREE_MAX_KEYS + 1]; |
btree_key_t key[BTREE_MAX_KEYS + 1]; |
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/** |
* Pointers to values. Sorted according to the key array. Defined only in leaf-level. |
81,9 → 83,9 |
extern void btree_create(btree_t *t); |
extern void btree_destroy(btree_t *t); |
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extern void btree_insert(btree_t *t, __native key, void *value, btree_node_t *leaf_node); |
extern void btree_remove(btree_t *t, __native key, btree_node_t *leaf_node); |
extern void *btree_search(btree_t *t, __native key, btree_node_t **leaf_node); |
extern void btree_insert(btree_t *t, btree_key_t key, void *value, btree_node_t *leaf_node); |
extern void btree_remove(btree_t *t, btree_key_t key, btree_node_t *leaf_node); |
extern void *btree_search(btree_t *t, btree_key_t key, btree_node_t **leaf_node); |
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extern btree_node_t *btree_leaf_node_left_neighbour(btree_t *t, btree_node_t *node); |
extern btree_node_t *btree_leaf_node_right_neighbour(btree_t *t, btree_node_t *node); |