[vcfs.git] / blocktree.h

#ifndef _BLOCKTREE_H
#define _BLOCKTREE_H

#include "store.h"
#include "inttypes.h"

#define BT_INDBITS 10
#define BT_INDSZ (1 << BT_INDBITS)
#define BT_INDBSZ (sizeof(struct btnode) * BT_INDSZ)

typedef loff_t block_t;

struct btnode {
    u_int8_t d;
    struct addr a;
};

struct btop {
    block_t blk;
    void *buf;
    size_t len;
    int (*fillfn)(void *buf, size_t len, void *pdata);
    void *pdata;
};

ssize_t btget(struct store *st, struct btnode *tree, block_t bl, void *buf, size_t len);
int btputmany(struct store *st, struct btnode *tree, struct btop *ops, int numops);
int btput(struct store *st, struct btnode *tree, block_t bl, void *buf, size_t len);
block_t btcount(struct store *st, struct btnode *tree);
void btsortops(struct btop *ops, int numops);
void btmkop(struct btop *op, block_t bl, void *buf, size_t len);

#endif
Commit	Line	Data
d5cf5351	1	#ifndef _BLOCKTREE_H
	2	#define _BLOCKTREE_H
	3
	4	#include "store.h"
	5	#include "inttypes.h"
	6
	7	#define BT_INDBITS 10
	8	#define BT_INDSZ (1 << BT_INDBITS)
	9	#define BT_INDBSZ (sizeof(struct btnode) * BT_INDSZ)
	10
	11	typedef loff_t block_t;
	12
	13	struct btnode {
	14	u_int8_t d;
	15	struct addr a;
	16	};
	17
	18	struct btop {
	19	block_t blk;
	20	void *buf;
	21	size_t len;
	22	int (fillfn)(void buf, size_t len, void *pdata);
	23	void *pdata;
	24	};
	25
	26	ssize_t btget(struct store st, struct btnode tree, block_t bl, void *buf, size_t len);
	27	int btputmany(struct store st, struct btnode tree, struct btop *ops, int numops);
	28	int btput(struct store st, struct btnode tree, block_t bl, void *buf, size_t len);
	29	block_t btcount(struct store st, struct btnode tree);
	30	void btsortops(struct btop *ops, int numops);
	31	void btmkop(struct btop op, block_t bl, void buf, size_t len);
	32
	33	#endif