Zen API
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kBool kAtomicPointer_CompareExchange | ( | kAtomicPointer * | atomic, |
kPointer | oldValue, | ||
kPointer | value | ||
) |
Conditionally exchanges the value of an atomic variable.
If the atomic value is equal to the oldValue argument, then it is replaced by the value argument.
This method is thread-safe. Implements a full memory barrier.
atomic | Pointer to atomic variable. |
oldValue | Previous atomic value. |
value | New atomic value. |