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85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/* io.h - Virtual disk input/output
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Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
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Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
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Copyright (C) 2008-2014 Daniel Baumann <mail@daniel-baumann.ch>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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The complete text of the GNU General Public License
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can be found in /usr/share/common-licenses/GPL-3 file.
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*/
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/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
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* by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
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#ifndef _IO_H
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#define _IO_H
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#ifndef __REACTOS__
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#include <fcntl.h> /* for off_t */
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#endif
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#ifndef __REACTOS__
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void fs_open(char *path, int rw);
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#else
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NTSTATUS fs_open(PUNICODE_STRING DriveRoot, int read_write);
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#endif
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/* Opens the filesystem PATH. If RW is zero, the filesystem is opened
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read-only, otherwise, it is opened read-write. */
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#ifdef __REACTOS__
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BOOLEAN fs_isdirty(void);
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/* Checks if filesystem is dirty */
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#endif
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void fs_read(off_t pos, int size, void *data);
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/* Reads SIZE bytes starting at POS into DATA. Performs all applicable
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changes. */
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int fs_test(off_t pos, int size);
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/* Returns a non-zero integer if SIZE bytes starting at POS can be read without
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errors. Otherwise, it returns zero. */
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void fs_write(off_t pos, int size, void *data);
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/* If write_immed is non-zero, SIZE bytes are written from DATA to the disk,
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starting at POS. If write_immed is zero, the change is added to a list in
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memory. */
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int fs_close(int write);
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/* Closes the filesystem, performs all pending changes if WRITE is non-zero
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and removes the list of changes. Returns a non-zero integer if the file
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system has been changed since the last fs_open, zero otherwise. */
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int fs_changed(void);
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/* Determines whether the filesystem has changed. See fs_close. */
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#ifdef __REACTOS__
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NTSTATUS fs_lock(BOOLEAN LockVolume);
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/* Lock or unlocks the volume */
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void fs_dismount(void);
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/* Dismounts the volume */
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#endif
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#endif
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