30 lines
822 B
C
30 lines
822 B
C
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#ifndef FILESYS_FILE_H
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#define FILESYS_FILE_H
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#include "filesys/off_t.h"
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struct inode;
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/* Opening and closing files. */
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struct file *file_open (struct inode *);
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struct file *file_reopen (struct file *);
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void file_close (struct file *);
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struct inode *file_get_inode (struct file *);
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/* Reading and writing. */
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off_t file_read (struct file *, void *, off_t);
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off_t file_read_at (struct file *, void *, off_t size, off_t start);
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off_t file_write (struct file *, const void *, off_t);
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off_t file_write_at (struct file *, const void *, off_t size, off_t start);
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/* Preventing writes. */
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void file_deny_write (struct file *);
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void file_allow_write (struct file *);
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/* File position. */
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void file_seek (struct file *, off_t);
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off_t file_tell (struct file *);
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off_t file_length (struct file *);
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#endif /* filesys/file.h */
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