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kingdoctor123 avatar kingdoctor123 commented on July 25, 2024

Non-atomically reading from or writing to a location that can be concurrently accessed by multiple threads are always data races. This condition is formally defined in the language semantics (precisely, memory model). Such situation is considered as an undefined behavior, and compilers might perform aggressive optimization while assuming that such situation never happens. This is the reason why we should use AtomicBool even if we don't use CAS, FAA, etc.

Reference: https://stackoverflow.com/questions/72639534/why-is-atomic-bool-needed-to-avoid-data-race

from cs431.

KalasLavas avatar KalasLavas commented on July 25, 2024

Understood! Thank you!

from cs431.

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