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Add an implementation for send_fd_scm to the async QMP implementation. Like socket_scm_helper mentions, a non-empty payload is required for QEMU to process the ancillary data. A space is most useful because it does not disturb the parsing of subsequent JSON objects. A note on "voiding the warranty": Python 3.11 removes support for calling sendmsg directly from a transport's socket. There is no other interface for doing this, our use case is, I suspect, "quite unique". As far as I can tell, this is safe to do -- send_fd_scm is a synchronous function and we can be guaranteed that the async coroutines will *not* be running when it is invoked. In testing, it works correctly. I investigated quite thoroughly the possibility of creating my own asyncio Transport (The class that ultimately manages the raw socket object) so that I could manage the socket myself, but this is so wildly invasive and unportable I scrapped the idea. It would involve a lot of copy-pasting of various python utilities and classes just to re-create the same infrastructure, and for extremely little benefit. Nah. Just boldly void the warranty instead, while I try to follow up on https://bugs.python.org/issue43232 Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20210923004938.3999963-5-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com> |
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| .. | ||
| aqmp | ||
| machine | ||
| qmp | ||
| utils | ||
| README.rst | ||
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.