Expose the flags, address parameter of the underlying sock.sendmsg
method, in order to be able to explicitly specify the recipient of
the message; as needed in connection-less mode.
Python 3.2 renamed array.fromstring to array.frombytes, but kept
the former as an, now deprecated, alias. Use the canonical form
which indeed better describes what is going on.
If dir_fd wasn't passed, create_device() openend it to `/dev` and forgot
about closing it. To fix this, it would have to gain logic to only close
the fd if it wasn't passed in.
Side-step the problem by removing dir_fd, since nothing is using it
right now. We can add it back if something needs it.
Closing the socket is the responsibility of whoever opened it.
Fix this in the only user (qemu assembler) by using socket() in a `with`
block, which closes the socket on exit.
Import modules between files using the syntax `from . import foobar`,
renaming what used to be `FooBar` to `foobar.FooBar` when moved to a
separate file.
In __init__.py only import what is meant to be public API.
Signed-off-by: Tom Gundersen <teg@jklm.no>
loop.py is a simple wrapper around the kernel loop API. remoteloop.py
uses this to create a server/clinet pair that communicates over an
AF_UNIX/SOCK_DGRAM socket to allow the server to create loop devices
for the client.
The client passes a fd that should be bound to the resulting loop
device, and a dir-fd where the loop device node should be created.
The server returns the name of the device node to the client.
The idea is that the client is run from whithin a container without
access to devtmpfs (and hence /dev/loop-control), and the server
runs on the host. The client would typically pass its (fake) /dev
as the output directory.
For the client this will be similar to `losetup -f foo.img --show`.
[@larskarlitski: pylint: ignore the new LoopInfo class, because it
only has dynamic attributes. Also disable attribute-defined-outside-init,
which (among other problems) is not ignored for that class.]
Signed-off-by: Tom Gundersen <teg@jklm.no>
