105 lines
4.2 KiB
Diff
105 lines
4.2 KiB
Diff
From d8bdd0cbf122d1f01acaec8c9846b9cdbf925d3c Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Tue, 13 Aug 2024 09:35:30 -0400
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Subject: [PATCH 25/52] python: backport 'Remove deprecated get_event_loop
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calls'
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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RH-MergeRequest: 504: virt-storage: Backport stable branch fixes
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RH-Jira: RHEL-186384
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Commit: [18/45] 7f8d672738b92fa5935342eded7559bc16bef7ab (kmwolf/centos-qemu-kvm)
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This method was deprecated in 3.12 because it ordinarily should not be
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used from coroutines; if there is not a currently running event loop,
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this automatically creates a new event loop - which is usually not what
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you want from code that would ever run in the bottom half.
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In our case, we do want this behavior in two places:
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(1) The synchronous shim, for convenience: this allows fully sync
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programs to use QEMUMonitorProtocol() without needing to set up an event
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loop beforehand. This is intentional to fully box in the async
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complexities into the legacy sync shim.
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(2) The qmp_tui shell; instead of relying on asyncio.run to create and
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run an asyncio program, we need to be able to pass the current asyncio
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loop to urwid setup functions. For convenience, again, we create one if
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one is not present to simplify the creation of the TUI appliance.
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The remaining user of get_event_loop() was in fact one of the erroneous
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users that should not have been using this function: if there's no
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running event loop inside of a coroutine, you're in big trouble :)
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Signed-off-by: John Snow <jsnow@redhat.com>
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cherry picked from commit python-qemu-qmp@aa1ff9907603a3033296027e1bd021133df86ef1
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Signed-off-by: John Snow <jsnow@redhat.com>
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Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
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(cherry picked from commit 5d99044d09db0fa8c2b3294e301927118f9effc9)
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Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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python/qemu/qmp/legacy.py | 9 ++++++++-
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python/qemu/qmp/qmp_tui.py | 7 ++++++-
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python/tests/protocol.py | 2 +-
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3 files changed, 15 insertions(+), 3 deletions(-)
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diff --git a/python/qemu/qmp/legacy.py b/python/qemu/qmp/legacy.py
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index 22a2b5616e..ea9b8032c3 100644
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--- a/python/qemu/qmp/legacy.py
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+++ b/python/qemu/qmp/legacy.py
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@@ -86,7 +86,14 @@ def __init__(self,
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"server argument should be False when passing a socket")
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self._qmp = QMPClient(nickname)
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- self._aloop = asyncio.get_event_loop()
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+
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+ try:
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+ self._aloop = asyncio.get_running_loop()
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+ except RuntimeError:
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+ # No running loop; since this is a sync shim likely to be
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+ # used in fully sync programs, create one if neccessary.
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+ self._aloop = asyncio.get_event_loop_policy().get_event_loop()
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+
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self._address = address
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self._timeout: Optional[float] = None
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diff --git a/python/qemu/qmp/qmp_tui.py b/python/qemu/qmp/qmp_tui.py
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index 562be008d5..651f611316 100644
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--- a/python/qemu/qmp/qmp_tui.py
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+++ b/python/qemu/qmp/qmp_tui.py
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@@ -377,7 +377,12 @@ def run(self, debug: bool = False) -> None:
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screen = urwid.raw_display.Screen()
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screen.set_terminal_properties(256)
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- self.aloop = asyncio.get_event_loop()
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+ try:
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+ self.aloop = asyncio.get_running_loop()
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+ except RuntimeError:
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+ # No running asyncio event loop. Create one if necessary.
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+ self.aloop = asyncio.get_event_loop_policy().get_event_loop()
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+
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self.aloop.set_debug(debug)
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# Gracefully handle SIGTERM and SIGINT signals
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diff --git a/python/tests/protocol.py b/python/tests/protocol.py
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index c254c77b17..e565802516 100644
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--- a/python/tests/protocol.py
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+++ b/python/tests/protocol.py
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@@ -227,7 +227,7 @@ def async_test(async_test_method):
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Decorator; adds SetUp and TearDown to async tests.
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"""
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async def _wrapper(self, *args, **kwargs):
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- loop = asyncio.get_event_loop()
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+ loop = asyncio.get_running_loop()
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loop.set_debug(True)
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await self._asyncSetUp()
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--
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2.52.0
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