手动膨胀ManualResetEventSlim是什么意思？

Question

I'm currently reading ManualResetEventSlim's Reference .

What does it mean when it says:

A common use of MRES.WaitHandle is to use MRES as a participant in WaitHandle.WaitAll/WaitAny. Note that accessing MRES.WaitHandle will result in the unconditional inflation of the underlying ManualResetEvent.

What is this inflation thing?

Thanks for reading.

Answer 1

The slim part of ManualResetEventSlim is that it does not create an OS-level ManualResetEvent until needed. (those are expensive)

Inflation means creating a real ManualResetEvent .

You can see this on line 275 of the source .