From: Jose R. Santos <jrs@xxxxxxxxxx>
Add 64-bit IO manager operations to struct_io_manager.
In order to provide 64-bit block support for IO managers an maintain
ABI compatibility with the old API, some new functions need to be
added to struct_io_manger. Luckily, strcut_io_manager has some
reserved space that we can use to add these new functions.
Signed-off-by: Jose R. Santos <jrs@xxxxxxxxxx>
--
lib/ext2fs/ext2_io.h | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/lib/ext2fs/ext2_io.h b/lib/ext2fs/ext2_io.h
index 864d1f9..e3b0b1e 100644
--- a/lib/ext2fs/ext2_io.h
+++ b/lib/ext2fs/ext2_io.h
@@ -79,7 +79,11 @@ struct struct_io_manager {
errcode_t (*set_option)(io_channel channel, const char *option,
const char *arg);
errcode_t (*get_stats)(io_channel channel, io_stats *io_stats);
- int reserved[14];
+ 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);
+ int reserved[12];
};
#define IO_FLAG_RW 0x0001
@@ -91,7 +95,9 @@ struct struct_io_manager {
#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_read_blk64(c,b,n,d) ((c)->manager->read_blk64((c),b,n,d))
#define io_channel_write_blk(c,b,n,d) ((c)->manager->write_blk((c),b,n,d))
+#define io_channel_write_blk64(c,b,n,d) ((c)->manager->write_blk64((c),b,n,d))
#define io_channel_flush(c) ((c)->manager->flush((c)))
#define io_channel_bumpcount(c) ((c)->refcount++)
--
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