diff options
Diffstat (limited to 'e2fslib/ext2_io.h')
-rw-r--r-- | e2fslib/ext2_io.h | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/e2fslib/ext2_io.h b/e2fslib/ext2_io.h deleted file mode 100644 index b9ba0b6..0000000 --- a/e2fslib/ext2_io.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * 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 Public - * License. - * %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; - -#define CHANNEL_FLAGS_WRITETHROUGH 0x01 - -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; - int reserved[14]; - void *private_data; - void *app_data; -}; - -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); - int reserved[15]; -}; - -#define IO_FLAG_RW 1 - -/* - * Convenience functions.... - */ -#define io_channel_close(c) ((c)->manager->close((c))) -#define io_channel_set_blksize(c,s) ((c)->manager->set_blksize((c),s)) -#define io_channel_read_blk(c,b,n,d) ((c)->manager->read_blk((c),b,n,d)) -#define io_channel_write_blk(c,b,n,d) ((c)->manager->write_blk((c),b,n,d)) -#define io_channel_flush(c) ((c)->manager->flush((c))) -#define io_channel_write_byte(c,b,n,d) ((c)->manager->write_byte((c),b,n,d)) -#define io_channel_bumpcount(c) ((c)->refcount++) - -/* unix_io.c */ -extern io_manager unix_io_manager; - -/* test_io.c */ -extern io_manager test_io_manager, test_io_backing_manager; -extern void (*test_io_cb_read_blk) - (unsigned long block, int count, errcode_t err); -extern void (*test_io_cb_write_blk) - (unsigned long block, int count, errcode_t err); -extern void (*test_io_cb_set_blksize) - (int blksize, errcode_t err); - -#endif /* _EXT2FS_EXT2_IO_H */ - |