Zaggy1024 db2a8725c6 LibCore: Only use coarse time in the Unix event loop wait_for_events() ...

A typo in the changes to our userland timekeeping classes caused us to
make a syscall every time we want to check whether a timer is ready to
fire in `EventLoopManagerUnix::wait_for_events()`. Instead, only use
coarse time, and get it immediately before it is used in both cases.

This reduces CPU usage by an (eyeballed) 20-30% while playing back
video with VideoPlayer.

2023-08-07 13:38:20 +02:00

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