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[PULL 02/10] python/aqmp: add .empty() method to EventListener
From: |
John Snow |
Subject: |
[PULL 02/10] python/aqmp: add .empty() method to EventListener |
Date: |
Tue, 12 Oct 2021 17:41:44 -0400 |
Synchronous clients may want to know if they're about to block waiting
for an event or not. A method such as this is necessary to implement a
compatible interface for the old QEMUMonitorProtocol using the new async
internals.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20210923004938.3999963-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
---
python/qemu/aqmp/events.py | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/python/qemu/aqmp/events.py b/python/qemu/aqmp/events.py
index fb81d216102..271899f6b82 100644
--- a/python/qemu/aqmp/events.py
+++ b/python/qemu/aqmp/events.py
@@ -556,6 +556,12 @@ async def get(self) -> Message:
"""
return await self._queue.get()
+ def empty(self) -> bool:
+ """
+ Return `True` if there are no pending events.
+ """
+ return self._queue.empty()
+
def clear(self) -> None:
"""
Clear this listener of all pending events.
--
2.31.1
- [PULL 00/10] Python patches, John Snow, 2021/10/12
- [PULL 01/10] python/aqmp: add greeting property to QMPClient, John Snow, 2021/10/12
- [PULL 02/10] python/aqmp: add .empty() method to EventListener,
John Snow <=
- [PULL 03/10] python/aqmp: Return cleared events from EventListener.clear(), John Snow, 2021/10/12
- [PULL 04/10] python/aqmp: add send_fd_scm, John Snow, 2021/10/12
- [PULL 05/10] python/aqmp: Add dict conversion method to Greeting object, John Snow, 2021/10/12
- [PULL 06/10] python/aqmp: Reduce severity of EOFError-caused loop terminations, John Snow, 2021/10/12
- [PULL 07/10] python/aqmp: Disable logging messages by default, John Snow, 2021/10/12
- [PULL 08/10] python/qmp: clear events on get_events() call, John Snow, 2021/10/12
- [PULL 09/10] python/qmp: add send_fd_scm directly to QEMUMonitorProtocol, John Snow, 2021/10/12
- [PULL 10/10] python, iotests: remove socket_scm_helper, John Snow, 2021/10/12
- Re: [PULL 00/10] Python patches, Richard Henderson, 2021/10/12