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30 lines
1 KiB
C
30 lines
1 KiB
C
#ifndef __DISKIO__
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#define __DISKIO__
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#include "list.h"
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struct tree_buffer {
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u64 blocknr;
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int count;
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union {
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struct node node;
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struct leaf leaf;
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};
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struct list_head dirty;
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struct list_head cache;
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};
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struct tree_buffer *read_tree_block(struct ctree_root *root, u64 blocknr);
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struct tree_buffer *find_tree_block(struct ctree_root *root, u64 blocknr);
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int write_tree_block(struct ctree_root *root, struct tree_buffer *buf);
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int dirty_tree_block(struct ctree_root *root, struct tree_buffer *buf);
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int clean_tree_block(struct ctree_root *root, struct tree_buffer *buf);
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int commit_transaction(struct ctree_root *root, struct ctree_super_block *s);
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struct ctree_root *open_ctree(char *filename, struct ctree_super_block *s);
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int close_ctree(struct ctree_root *root, struct ctree_super_block *s);
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void tree_block_release(struct ctree_root *root, struct tree_buffer *buf);
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int write_ctree_super(struct ctree_root *root, struct ctree_super_block *s);
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int mkfs(int fd);
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#define CTREE_SUPER_INFO_OFFSET(bs) (16 * (bs))
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#endif
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