Sergey Bugaev 89004a3a40 LibCore: Make sure to disable notifiers when closing a socket ...

RefPtr<Notifier> doesn't work quite like it appears to, since the notifier
is also a "child" of the socket, in Core::Object sense. Thus we have to both
remove it from the parent (socket) and drop the additional RefPtr<Notifier> for
it to actually go away.

A proper fix for this would be to untangle parent-child relashionship from
refcounting and inspectability.

This fixes use-after-close of client file descriptors in IPC servers.

2020-06-08 13:58:32 +02:00

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