mirror of
https://github.com/reactos/reactos.git
synced 2024-07-08 21:55:08 +00:00
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* io.h - Virtual disk input/output */
|
|
|
|
/* Written 1993 by Werner Almesberger */
|
|
|
|
/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
|
|
* by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
|
|
|
|
|
|
#ifndef _IO_H
|
|
#define _IO_H
|
|
|
|
//#include <sys/types.h> /* for loff_t */
|
|
#include "dosfsck.h"
|
|
|
|
/* In earlier versions, an own llseek() was used, but glibc lseek() is
|
|
* sufficient (or even better :) for 64 bit offsets in the meantime */
|
|
#define llseek lseek
|
|
|
|
void fs_open(char *path,int rw);
|
|
|
|
/* Opens the file system PATH. If RW is zero, the file system is opened
|
|
read-only, otherwise, it is opened read-write. */
|
|
|
|
void fs_read(loff_t pos,int size,void *data);
|
|
|
|
/* Reads SIZE bytes starting at POS into DATA. Performs all applicable
|
|
changes. */
|
|
|
|
int fs_test(loff_t pos,int size);
|
|
|
|
/* Returns a non-zero integer if SIZE bytes starting at POS can be read without
|
|
errors. Otherwise, it returns zero. */
|
|
|
|
void fs_write(loff_t pos,int size,void *data);
|
|
|
|
/* If write_immed is non-zero, SIZE bytes are written from DATA to the disk,
|
|
starting at POS. If write_immed is zero, the change is added to a list in
|
|
memory. */
|
|
|
|
int fs_close(int write);
|
|
|
|
/* Closes the file system, performs all pending changes if WRITE is non-zero
|
|
and removes the list of changes. Returns a non-zero integer if the file
|
|
system has been changed since the last fs_open, zero otherwise. */
|
|
|
|
int fs_changed(void);
|
|
|
|
/* Determines whether the file system has changed. See fs_close. */
|
|
|
|
extern unsigned device_no;
|
|
|
|
/* Major number of device (0 if file) and size (in 512 byte sectors) */
|
|
|
|
#endif
|