Maria Matejka e91754f5b9 Event lists rewritten to a single linked list ...

In multithreaded environment, we need to pass messages between workers.
This is done by queuing events to their respective queues. The
double-linked list is not really useful for that as it needs locking
everywhere.

This commit rewrites the event subsystem to use a single-linked list
where events are enqueued by a single atomic instruction and the queue
is processed after atomically moving the whole queue aside.

2022-07-18 13:28:35 +02:00

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