python/aqmp: add start_server() and accept() methods

Add start_server() and accept() methods that can be used instead of
start_server_and_accept() to allow more fine-grained control over the
incoming connection process.

(Eagle-eyed reviewers will surely notice that it's a bit weird that
"CONNECTING" is a state that's shared between both the start_server()
and connect() states. That's absolutely true, and it's very true that
checking on the presence of _accepted as an indicator of state is a
hack. That's also very certainly true. But ... this keeps client code an
awful lot simpler, as it doesn't have to care exactly *how* the
connection is being made, just that it *is*. Is it worth disrupting that
simplicity in order to provide a better state guard on `accept()`? Hm.)

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: 20220225205948.3693480-9-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/python/tests/protocol.py b/python/tests/protocol.py
index 5e442e1efb..d6849ad306 100644
--- a/python/tests/protocol.py
+++ b/python/tests/protocol.py
@@ -43,11 +43,18 @@ class NullProtocol(AsyncProtocol[None]):
 
     async def _do_start_server(self, address, ssl=None):
         if self.fake_session:
+            self._accepted = asyncio.Event()
             self._set_state(Runstate.CONNECTING)
             await asyncio.sleep(0)
         else:
             await super()._do_start_server(address, ssl)
 
+    async def _do_accept(self):
+        if self.fake_session:
+            self._accepted = None
+        else:
+            await super()._do_accept()
+
     async def _do_connect(self, address, ssl=None):
         if self.fake_session:
             self._set_state(Runstate.CONNECTING)