AtomicLong.CompareAndExchange(Int64, Int64) Method
Definition
Important
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Atomically sets the value to newValue if the current value,
referred to as the <em>witness value</em>, == expectedValue,
with memory effects as specified by
VarHandle#compareAndExchange.
[Android.Runtime.Register("compareAndExchange", "(JJ)J", "", ApiSince=33)]
public long CompareAndExchange (long expectedValue, long newValue);[<Android.Runtime.Register("compareAndExchange", "(JJ)J", "", ApiSince=33)>]
member this.CompareAndExchange : int64 * int64 -> int64Parameters
- expectedValue
- Int64
the expected value
- newValue
- Int64
the new value
Returns
the witness value, which will be the same as the expected value if successful
- Attributes
Remarks
Atomically sets the value to newValue if the current value, referred to as the <em>witness value</em>, == expectedValue, with memory effects as specified by VarHandle#compareAndExchange.
Added in 9.
Java documentation for java.util.concurrent.atomic.AtomicLong.compareAndExchange(long, long).
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.