#ifndef SOCKS_BLOCK_H_
#define SOCKS_BLOCK_H_

#include <socks/types.h>
#include <socks/btree.h>
#include <socks/locks.h>
#include <socks/status.h>
#include <stdbool.h>

enum block_device_flags {
	BLOCK_DEVICE_NO_BCACHE = 0x01u,
};

struct bcache {
	unsigned int b_sector_size;
	unsigned int b_sectors_per_page;
	struct btree b_pagetree;
};

struct bcache_sector {
	struct vm_page *sect_page;
	unsigned int sect_index;
	void *sect_buf;
	bool sect_present;
};

extern struct bcache *bcache_create(unsigned int block_size);
extern void bcache_destroy(struct bcache *cache);

extern kern_status_t bcache_init(struct bcache *cache, unsigned int block_size);
extern void bcache_deinit(struct bcache *cache);

extern kern_status_t bcache_get(struct bcache *cache, sectors_t at, bool create, struct bcache_sector *out);
extern void bcache_mark_present(struct bcache_sector *sect);

#endif