methods.h File Reference

Contains useful methods to work with FS. More...

#include <string.h>
#include <stdio.h>
#include "superblock.h"
#include "block.h"
#include "inode.h"

Go to the source code of this file.

Functions
uint16_t	create_dir_helper (int fd, const struct superblock *superblock, uint16_t parent_node_id, bool is_root)
	Helper for create new directory Creates dir with parent = parent_node_id (or itself if is_root). Push to new dir records about "." and "..". More...
uint16_t	create_file_helper (int fd, const struct superblock *superblock, uint16_t parent_node_id)
	Helper for create new file Creates file with parent = parent_node_id. More...
uint16_t	get_inode_id_of_dir (int fd, const char *path, const struct superblock *superblock)
	Parse path and find inode of this dir. More...
bool	is_dir_exist (int fd, struct inode *inode, const char *dirname, const struct superblock *superblock)
	Check if dir exists in inode. More...
uint16_t	get_file_inode_id (int fd, struct inode *inode, const char *dirname, const struct superblock *superblock)
	Return inode_id of file. More...

Detailed Description

Contains useful methods to work with FS.

Author

yaishenka

Date

13.03.2021

Definition in file methods.h.

Function Documentation

uint16_t create_dir_helper	(	const int	fd,
		const struct superblock *	superblock,
		uint16_t	parent_node_id,
		bool	is_root
	)

Helper for create new directory Creates dir with parent = parent_node_id (or itself if is_root). Push to new dir records about "." and "..".

Parameters

fd	opened fd
superblock
parent_node_id	parent of new dir
is_root

Returns

id of new inode if all ok; superblock->fs_info->inodes_count otherwise

Author

yaishenka

Date

12.03.2021

Definition at line 8 of file methods.c.

uint16_t create_file_helper	(	int	fd,
		const struct superblock *	superblock,
		uint16_t	parent_node_id
	)

Helper for create new file Creates file with parent = parent_node_id.

Parameters

fd
superblock
parent_node_id

Returns

id of new inode if all ok; superblock->fs_info->inodes_count otherwise

Definition at line 76 of file methods.c.

uint16_t get_file_inode_id	(	int	fd,
		struct inode *	inode,
		const char *	dirname,
		const struct superblock *	superblock
	)

Return inode_id of file.

Parameters

fd
inode
dirname
superblock

Returns

inode_id of file if it exists in this node; superblock->fs_info.inodes_count otherwise

Definition at line 232 of file methods.c.

uint16_t get_inode_id_of_dir	(	int	fd,
		const char *	path,
		const struct superblock *	superblock
	)

Parse path and find inode of this dir.

Parameters

fd
path
superblock

Returns

id of inode of this dir if all ok; superblock->fs_info.inodes_count otherwise

Definition at line 197 of file methods.c.

bool is_dir_exist	(	int	fd,
		struct inode *	inode,
		const char *	dirname,
		const struct superblock *	superblock
	)

Check if dir exists in inode.

Parameters

fd
inode
dirname
superblock

Returns

Definition at line 210 of file methods.c.