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Make notify thread-safe #3275

Merged
merged 4 commits into from
Sep 11, 2023
Merged

Make notify thread-safe #3275

merged 4 commits into from
Sep 11, 2023

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willmcgugan
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@willmcgugan willmcgugan commented Sep 11, 2023

Makes notify thread-safe. This is a convenience when working with threaded workers.

Fixes #3267


def unnotify(self, notification: Notification, refresh: bool = True) -> None:
def _unnotify(self, notification: Notification, refresh: bool = True) -> None:
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I've never used this API but this method seems like it's really useful if it's public?

Is this method how we discard notifications manually? It seems useful if notifications are longer-lived - to allow us to remove ones that are no longer relevant.

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The problem is not that self.notify() doesn't add the notification immediately. It posts a message, and returns None. That means that the user won't have a reference to the Notification object. And even if they did, it might not yet be active.

Programatically removing notifications is useful, but we will need another mechanism for that.

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Not saying it's for this PR, but I think it'd be nice if notify still returned a Notification as a handle to a notification which may or may not be active. Then, if you try to unnotify a Notification that isn't active then it'd just prevent it from appearing.

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One small tidy-up suggested in one of the tests; otherwise looks good and should be properly handy when debugging threaded workers!

tests/notifications/test_app_notifications.py Outdated Show resolved Hide resolved
@willmcgugan willmcgugan merged commit 9e29982 into main Sep 11, 2023
@willmcgugan willmcgugan deleted the notify-thread-safe branch September 11, 2023 12:25
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Make notify threadsafe
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