Laszlo Ersek 4864d21cb8 guestfs_readdir(): minimize the number of send_file_write() calls ...

In guestfs_readdir(), the daemon currently sends each XDR-encoded
"guestfs_int_dirent" to the library with a separate send_file_write()
call.

Determine the largest encoded size (from the longest filename that a
"guestfs_int_dirent" could carry, from readdir()'s "struct dirent"), and
batch up the XDR encodings until the next encoding might not fit in
GUESTFS_MAX_CHUNK_SIZE. Call send_file_write() only then.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1674392
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20220502085601.15012-3-lersek@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>

2022-05-03 10:54:00 +02:00

3.9 KiB

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