The difference between thread-safety and re-entrancy – The Old New Thing
Posted by jpluimers on 2021/01/13
Just in case I need a nice example about the difference: [WayBack] The difference between thread-safety and re-entrancy – The Old New Thing.
It has both that and the definition:
An operation is “thread-safe” if it can be performed from multiple threads safely, even if the calls happen simultaneously on multiple threads.
An operation is re-entrant if it can be performed while the operation is already in progress (perhaps in another context). This is a stronger concept than thread-safety, because the second attempt to perform the operation can even come from within the same thread.
–jeroen
The Wiert Corner - irregular stream of stuff 
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