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Diffstat (limited to 'serverboot/file_io.h')
| -rw-r--r-- | serverboot/file_io.h | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/serverboot/file_io.h b/serverboot/file_io.h deleted file mode 100644 index 323e4e9a..00000000 --- a/serverboot/file_io.h +++ /dev/null @@ -1,200 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ - -#ifndef _FILE_IO_H_ -#define _FILE_IO_H_ - -/* - * Read-only file IO. - */ - -#include <mach.h> -#include <cthreads.h> - -#include <stdint.h> -#include <device/device_types.h> - -/* Types used by the ext2 header files. */ -typedef u_int32_t __u32; -typedef int32_t __s32; -typedef u_int16_t __u16; -typedef int16_t __s16; -typedef u_int8_t __u8; -typedef int8_t __s8; - -#include <defs.h> -#include "minix_fs.h" -#include "../ext2fs/ext2_fs.h" /* snarf stolen linux header from ext2fs */ -#include "disk_inode.h" - -#define BSD_FFS 0 -#define EXT2_FS 1 -#define MINIX_FS 2 - -#define EXT2_NIADDR (EXT2_N_BLOCKS - EXT2_NDIR_BLOCKS) - -/* - * In-core open file. - */ -struct file { - struct mutex f_lock; /* lock */ - mach_port_t f_dev; /* port to device */ - vm_offset_t f_buf; /* buffer for data block */ - vm_size_t f_buf_size; /* size of data block */ - daddr_t f_buf_blkno; /* block number of data block */ - vm_size_t f_size; /* size in bytes of the file */ - - int f_fstype; /* contains fs-id */ - - union { - struct { - struct fs * ffs_fs; /* pointer to super-block */ - struct icommon ffs_ic; /* copy of on-disk inode */ - - /* number of blocks mapped by - indirect block at level i */ - int ffs_nindir[FFS_NIADDR+1]; - - /* buffer for indirect block at level i */ - vm_offset_t ffs_blk[FFS_NIADDR]; - - /* size of buffer */ - vm_size_t ffs_blksize[FFS_NIADDR]; - - /* disk address of block in buffer */ - daddr_t ffs_blkno[FFS_NIADDR]; - } ffs; - struct { - /* pointer to super-block */ - struct ext2_super_block*ext2_fs; - - /* pointer to group descriptors */ - struct ext2_group_desc* ext2_gd; - - /* size of group descriptors */ - vm_size_t ext2_gd_size; - - /* copy of on-disk inode */ - struct ext2_inode ext2_ic; - - /* number of blocks mapped by - indirect block at level i */ - int ext2_nindir[EXT2_NIADDR+1]; - - /* buffer for indirect block at level i */ - vm_offset_t ext2_blk[EXT2_NIADDR]; - - /* size of buffer */ - vm_size_t ext2_blksize[EXT2_NIADDR]; - - /* disk address of block in buffer */ - daddr_t ext2_blkno[EXT2_NIADDR]; - } ext2; - struct { - /* pointer to super-block */ - struct minix_super_block* minix_fs; - - /* copy of on-disk inode */ - struct minix_inode minix_ic; - - /* number of blocks mapped by - indirect block at level i */ - int minix_nindir[MINIX_NIADDR+1]; - - /* buffer for indirect block at level i */ - vm_offset_t minix_blk[MINIX_NIADDR]; - - /* size of buffer */ - vm_size_t minix_blksize[MINIX_NIADDR]; - - /* disk address of block in buffer */ - minix_daddr_t minix_blkno[MINIX_NIADDR]; - } minix; - } u; -}; - -/* - * In-core open file, with in-core block map. - */ -struct file_direct { - int f_fstype; /* XXX was: true if ext2, false if ffs */ - - mach_port_t fd_dev; /* port to device */ - daddr_t * fd_blocks; /* array of disk block addresses */ - long fd_size; /* number of blocks in the array */ - long fd_bsize; /* disk block size */ - long fd_bshift; /* log2(fd_bsize) */ - long fd_fsbtodb; /* log2(fd_bsize / disk sector size) */ -}; - -#define file_is_device(_fd_) ((_fd_)->fd_blocks == 0) - -/* - * Exported routines. - */ - -extern int open_file(); -extern void close_file(); -extern int read_file(); - -extern int open_file_direct(); -extern int add_file_direct(); -extern int remove_file_direct(); -extern int file_wire_direct(); -extern int page_read_file_direct(); -extern int page_write_file_direct(); - -/* - * Error codes for file system errors. - */ - -#include <errno.h> - -/* Just use the damn Hurd error numbers. This is old CMU/Utah code from - the days of personality-independent Mach where it made sense for this to - be a standalone universe. In the Hurd, we compile serverboot against - the regular C library anyway. */ - -#define FS_NOT_DIRECTORY ENOTDIR -#define FS_NO_ENTRY ENOENT -#define FS_NAME_TOO_LONG ENAMETOOLONG -#define FS_SYMLINK_LOOP ELOOP -#define FS_INVALID_FS EFTYPE /* ? */ -#define FS_NOT_IN_FILE EINVAL -#define FS_INVALID_PARAMETER EINVAL - -#if 0 -#define FS_NOT_DIRECTORY 5000 /* not a directory */ -#define FS_NO_ENTRY 5001 /* name not found */ -#define FS_NAME_TOO_LONG 5002 /* name too long */ -#define FS_SYMLINK_LOOP 5003 /* symbolic link loop */ -#define FS_INVALID_FS 5004 /* bad file system */ -#define FS_NOT_IN_FILE 5005 /* offset not in file */ -#define FS_INVALID_PARAMETER 5006 /* bad parameter to routine */ -#endif - - -#endif /* _FILE_IO_H_ */ |