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authorAdrian Herrmann <adrian.herrmann@qt.io>2023-11-24 16:35:53 +0100
committerQt Cherry-pick Bot <cherrypick_bot@qt-project.org>2023-11-24 21:56:53 +0000
commit329c274ffa6c163a8cd1af02dabbded80a3882a6 (patch)
treea09e3cdd371c40ccf3093cbe01b06a02e83be2b8
parent49023edd47a694299728ba032aba3d122764b157 (diff)
QtAsyncio: Do not raise exception at handle cancel
Do not raise an exception when cancelling a handle. The exception should be raised later, when retrieving the future's result. Task-number: PYSIDE-769 Change-Id: I8243cf16e8be5afe167d69313054e97e9aafc75c Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io> Reviewed-by: Shyamnath Premnadh <Shyamnath.Premnadh@qt.io> (cherry picked from commit 476dea383d64d528263ff12d795901b10bc7ed48) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
-rw-r--r--sources/pyside6/PySide6/QtAsyncio/events.py9
-rw-r--r--sources/pyside6/PySide6/QtAsyncio/futures.py5
-rw-r--r--sources/pyside6/PySide6/QtAsyncio/tasks.py2
3 files changed, 5 insertions, 11 deletions
diff --git a/sources/pyside6/PySide6/QtAsyncio/events.py b/sources/pyside6/PySide6/QtAsyncio/events.py
index d64d7d22b..7e578e547 100644
--- a/sources/pyside6/PySide6/QtAsyncio/events.py
+++ b/sources/pyside6/PySide6/QtAsyncio/events.py
@@ -466,8 +466,6 @@ class QAsyncioHandle():
def __init__(self, callback: typing.Callable, args: typing.Tuple,
loop: QAsyncioEventLoop, context: typing.Optional[contextvars.Context]) -> None:
- self._cancel_exception_msg: typing.Optional[str] = None
-
self._callback = callback
self._args = args
self._loop = loop
@@ -494,15 +492,10 @@ class QAsyncioHandle():
self._callback(*self._args)
self._state = QAsyncioHandle.HandleState.DONE
- @Slot()
- def _cancel_exception(self) -> None:
- raise asyncio.CancelledError(self._cancel_exception_msg)
-
def cancel(self) -> None:
if self._state == QAsyncioHandle.HandleState.PENDING:
- self._state = QAsyncioHandle.HandleState.CANCELLED
# The old timer that was created in _start will still trigger but _cb won't do anything.
- self._schedule_event(0, lambda: self._cancel_exception())
+ self._state = QAsyncioHandle.HandleState.CANCELLED
def cancelled(self) -> bool:
return self._state == QAsyncioHandle.HandleState.CANCELLED
diff --git a/sources/pyside6/PySide6/QtAsyncio/futures.py b/sources/pyside6/PySide6/QtAsyncio/futures.py
index 580f34db6..7ed8bcb64 100644
--- a/sources/pyside6/PySide6/QtAsyncio/futures.py
+++ b/sources/pyside6/PySide6/QtAsyncio/futures.py
@@ -61,7 +61,10 @@ class QAsyncioFuture():
if self._state == QAsyncioFuture.FutureState.DONE_WITH_EXCEPTION and self._exception:
raise self._exception
if self._state == QAsyncioFuture.FutureState.CANCELLED:
- raise asyncio.CancelledError
+ if self._cancel_message:
+ raise asyncio.CancelledError(self._cancel_message)
+ else:
+ raise asyncio.CancelledError
raise asyncio.InvalidStateError
def set_result(self, result: typing.Any) -> None:
diff --git a/sources/pyside6/PySide6/QtAsyncio/tasks.py b/sources/pyside6/PySide6/QtAsyncio/tasks.py
index 027615f21..78f9dfb0c 100644
--- a/sources/pyside6/PySide6/QtAsyncio/tasks.py
+++ b/sources/pyside6/PySide6/QtAsyncio/tasks.py
@@ -135,8 +135,6 @@ class QAsyncioTask(futures.QAsyncioFuture):
def cancel(self, msg: typing.Optional[str] = None) -> bool:
if self.done():
return False
- if (isinstance(self._handle, events.QAsyncioHandle)):
- self._handle._cancel_exception_msg = msg
self._cancel_message = msg
self._handle.cancel()
self._state = futures.QAsyncioFuture.FutureState.CANCELLED