pintos/src/filesys/file.c File Reference

#include "filesys/file.h"
#include <debug.h>
#include "filesys/inode.h"
#include "threads/malloc.h"

Go to the source code of this file.

Data Structures
struct	file
Functions
struct file *	file_open (struct inode *inode)
struct file *	file_reopen (struct file *file)
void	file_close (struct file *file)
struct inode *	file_get_inode (struct file *file)
off_t	file_read (struct file *file, void *buffer, off_t size)
off_t	file_read_at (struct file *file, void *buffer, off_t size, off_t file_ofs)
off_t	file_write (struct file *file, const void *buffer, off_t size)
off_t	file_write_at (struct file *file, const void *buffer, off_t size, off_t file_ofs)
void	file_deny_write (struct file *file)
void	file_allow_write (struct file *file)
off_t	file_length (struct file *file)
void	file_seek (struct file *file, off_t new_pos)
off_t	file_tell (struct file *file)

---

Function Documentation

void file_allow_write

(

struct file *

file

)

Definition at line 134 of file file.c.

References ASSERT, file::deny_write, file::inode, inode_allow_write(), and NULL.

Referenced by file_close().

void file_close

(

struct file *

file

)

Definition at line 47 of file file.c.

References file_allow_write(), free(), file::inode, inode_close(), and NULL.

Referenced by free_map_close(), fsutil_append(), fsutil_cat(), fsutil_extract(), and load().

void file_deny_write

(

struct file *

file

)

Definition at line 120 of file file.c.

References ASSERT, file::deny_write, file::inode, inode_deny_write(), and NULL.

struct inode* file_get_inode

(

struct file *

file

)

[read]

Definition at line 59 of file file.c.

References file::inode.

off_t file_length

(

struct file *

file

)

Definition at line 146 of file file.c.

References ASSERT, file::inode, inode_length(), and NULL.

Referenced by fsutil_append(), load(), and validate_segment().

struct file* file_open

(

struct inode *

inode

)

[read]

Definition at line 19 of file file.c.

References calloc(), file::deny_write, free(), file::inode, inode_close(), NULL, and file::pos.

Referenced by file_reopen(), filesys_open(), free_map_create(), and free_map_open().

off_t file_read	(	struct file *	file,
		void *	buffer,
		off_t	size
	)

Definition at line 70 of file file.c.

References file::inode, inode_read_at(), and file::pos.

Referenced by fsutil_append(), fsutil_cat(), load(), and load_segment().

off_t file_read_at	(	struct file *	file,
		void *	buffer,
		off_t	size,
		off_t	file_ofs
	)

Definition at line 83 of file file.c.

References file::inode, and inode_read_at().

struct file* file_reopen

(

struct file *

file

)

[read]

Definition at line 40 of file file.c.

References file_open(), file::inode, and inode_reopen().

void file_seek	(	struct file *	file,
		off_t	new_pos
	)

Definition at line 155 of file file.c.

References ASSERT, NULL, and file::pos.

Referenced by load(), and load_segment().

off_t file_tell

(

struct file *

file

)

Definition at line 165 of file file.c.

References ASSERT, NULL, and file::pos.

Referenced by fsutil_cat().

off_t file_write	(	struct file *	file,
		const void *	buffer,
		off_t	size
	)

Definition at line 96 of file file.c.

References file::inode, inode_write_at(), and file::pos.

Referenced by fsutil_extract().

off_t file_write_at	(	struct file *	file,
		const void *	buffer,
		off_t	size,
		off_t	file_ofs
	)

Definition at line 111 of file file.c.

References file::inode, and inode_write_at().