From: John Snow <jsnow@redhat.com>
Date: Mon, 10 Jan 2022 23:28:46 +0000 (-0500)
Subject: python/aqmp: handle asyncio.TimeoutError on execute()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3b5bf136f5798a4ea2c66875d6337ca3d6b79434;p=qemu.git

python/aqmp: handle asyncio.TimeoutError on execute()

This exception can be injected into any await statement. If we are
canceled via timeout, we want to clear the pending execution record on
our way out.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Beraldo Leal <bleal@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---

diff --git a/python/qemu/aqmp/qmp_client.py b/python/qemu/aqmp/qmp_client.py
index 8105e29fa8..6a985ffe30 100644
--- a/python/qemu/aqmp/qmp_client.py
+++ b/python/qemu/aqmp/qmp_client.py
@@ -435,7 +435,11 @@ class QMPClient(AsyncProtocol[Message], Events):
             msg_id = msg['id']
 
         self._pending[msg_id] = asyncio.Queue(maxsize=1)
-        await self._outgoing.put(msg)
+        try:
+            await self._outgoing.put(msg)
+        except:
+            del self._pending[msg_id]
+            raise
 
         return msg_id
 
@@ -452,9 +456,9 @@ class QMPClient(AsyncProtocol[Message], Events):
             was lost, or some other problem.
         """
         queue = self._pending[msg_id]
-        result = await queue.get()
 
         try:
+            result = await queue.get()
             if isinstance(result, ExecInterruptedError):
                 raise result
             return result