fun compareAndSwap(expected: T, new: T): T
Compares value with expected and replaces it with new value if values matches. Note that comparison is identity-based, not value-based. If new value is not null, it must be frozen or permanent object.
expected
- the expected value
new
- the new value
InvalidMutabilityException
- if the value is not frozen or a permanent object
Return the old value
© 2010–2020 JetBrains s.r.o. and Kotlin Programming Language contributors
Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.native.concurrent/-atomic-reference/compare-and-swap.html