John Snow 673856f9d8 python/aqmp: fix race condition in legacy.py
legacy.py provides a synchronous model. iotests frequently uses this
paradigm:

 - create QMP client object
 - start QEMU process
 - await connection from QEMU process

In the switch from sync to async QMP, the QMP client object stopped
calling bind() and listen() during the QMP object creation step, which
creates a race condition if the QEMU process dials in too quickly.

With refactoring out of the way, restore the former behavior of calling
bind() and listen() during __init__() to fix this race condition.

Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20220225205948.3693480-10-jsnow@redhat.com
[Expanded commit message. --js]
Signed-off-by: John Snow <jsnow@redhat.com>
2022-03-07 14:36:41 -05:00
..

QEMU Python Namespace
=====================

This directory serves as the root of a `Python PEP 420 implicit
namespace package <https://www.python.org/dev/peps/pep-0420/>`_.

Each directory below is assumed to be an installable Python package that
is available under the ``qemu.<package>`` namespace.