paulhorn
119 lines
1.1 KiB
C
119 lines
1.1 KiB
C
/* storage.h - C-ABI boundary between Storage Engine (C) and Engine Logic (C++) */
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#ifndef PAULDB_STORAGE_H
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#define PAULDB_STORAGE_H
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* --- Page Management --- */
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typedef struct Page Page;
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Page *
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page_create
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(
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uint32_t page_id
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);
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int
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page_insert
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(
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Page *p,
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const void *data,
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size_t len
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);
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void *
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page_get
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(
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Page *p,
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uint16_t slot_id,
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size_t *out_len
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);
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void
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page_free
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(
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Page *p
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);
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/* --- Heap (Multi-Page Row Store / Delta) --- */
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typedef struct Heap Heap;
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Heap *
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heap_create
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(
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void
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);
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int
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heap_insert
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(
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Heap *h,
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const void *data,
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size_t len
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);
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void
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heap_full_scan
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(
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Heap *h,
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void (*callback)
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(
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const void *,
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size_t
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)
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);
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void
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heap_free
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(
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Heap *h
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);
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/* --- B+Tree Index --- */
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typedef struct BTree BTree;
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BTree *
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btree_create
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(
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void
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);
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int
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btree_insert
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(
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BTree *bt,
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int64_t key,
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uint32_t page_id,
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uint16_t slot_id
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);
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int
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btree_lookup
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(
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BTree *bt,
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int64_t key,
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uint32_t *out_page,
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uint16_t *out_slot
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);
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void
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btree_free
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(
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BTree *bt
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);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PAULDB_STORAGE_H */
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