\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5×\D6?\BDê\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2€ \00 $\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4ê\E9\F2á\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// /* * io.h --- the I/O manager abstraction * * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. * * %Begin-Header% * This file may be redistributed under the terms of the GNU Library * General Public License, version 2. * %End-Header% */ #ifndef _EXT2FS_EXT2_IO_H #define _EXT2FS_EXT2_IO_H /* * ext2_loff_t is defined here since unix_io.c needs it. */ #if defined(__GNUC__) || defined(HAS_LONG_LONG) typedef long long ext2_loff_t; #else typedef long ext2_loff_t; #endif /* llseek.c */ ext2_loff_t ext2fs_llseek (int, ext2_loff_t, int); typedef struct struct_io_manager *io_manager; typedef struct struct_io_channel *io_channel; typedef struct struct_io_stats *io_stats; #define CHANNEL_FLAGS_WRITETHROUGH 0x01 #define CHANNEL_FLAGS_DISCARD_ZEROES 0x02 #define CHANNEL_FLAGS_BLOCK_DEVICE 0x04 #define io_channel_discard_zeroes_data(i) (i->flags & CHANNEL_FLAGS_DISCARD_ZEROES) struct struct_io_channel { errcode_t magic; io_manager manager; char *name; int block_size; errcode_t (*read_error)(io_channel channel, unsigned long block, int count, void *data, size_t size, int actual_bytes_read, errcode_t error); errcode_t (*write_error)(io_channel channel, unsigned long block, int count, const void *data, size_t size, int actual_bytes_written, errcode_t error); int refcount; int flags; long reserved[14]; void *private_data; void *app_data; int align; }; struct struct_io_stats { int num_fields; int reserved; unsigned long long bytes_read; unsigned long long bytes_written; }; struct struct_io_manager { errcode_t magic; const char *name; errcode_t (*open)(const char *name, int flags, io_channel *channel); errcode_t (*close)(io_channel channel); errcode_t (*set_blksize)(io_channel channel, int blksize); errcode_t (*read_blk)(io_channel channel, unsigned long block, int count, void *data); errcode_t (*write_blk)(io_channel channel, unsigned long block, int count, const void *data); errcode_t (*flush)(io_channel channel); errcode_t (*write_byte)(io_channel channel, unsigned long offset, int count, const void *data); errcode_t (*set_option)(io_channel channel, const char *option, const char *arg); errcode_t (*get_stats)(io_channel channel, io_stats *io_stats); errcode_t (*read_blk64)(io_channel channel, unsigned long long block, int count, void *data); errcode_t (*write_blk64)(io_channel channel, unsigned long long block, int count, const void *data); errcode_t (*discard)(io_channel channel, unsigned long long block, unsigned long long count); long reserved[16]; }; #define IO_FLAG_RW 0x0001 #define IO_FLAG_EXCLUSIVE 0x0002 #define IO_FLAG_DIRECT_IO 0x0004 /* * Convenience functions.... */ #define io_channel_close(c) ((c)->manager->close((c))) #define io_channel_set_blksize(c,s) ((c)->man