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| java.lang.Object | |
| ↳ | java.util.concurrent.atomic.AtomicMarkableReference<V> |
An AtomicMarkableReference maintains an object reference
along with a mark bit, that can be updated atomically.
Implementation note: This implementation maintains markable references by creating internal objects representing "boxed" [reference, boolean] pairs.
| Public Constructors | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Creates a new
AtomicMarkableReference with the given
initial values. | |||||||||||
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Atomically sets the value of the mark to the given update value
if the current reference is
== to the expected
reference. | |||||||||||
Atomically sets the value of both the reference and mark
to the given update values if the
current reference is
== to the expected reference
and the current mark is equal to the expected mark. | |||||||||||
Returns the current values of both the reference and the mark.
| |||||||||||
Returns the current value of the reference.
| |||||||||||
Returns the current value of the mark.
| |||||||||||
Unconditionally sets the value of both the reference and mark.
| |||||||||||
Atomically sets the value of both the reference and mark
to the given update values if the
current reference is
== to the expected reference
and the current mark is equal to the expected mark. | |||||||||||
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[Expand]
Inherited Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
From class
java.lang.Object
| |||||||||||
Creates a new AtomicMarkableReference with the given
initial values.
| initialRef | the initial reference |
|---|---|
| initialMark | the initial mark |
Atomically sets the value of the mark to the given update value
if the current reference is == to the expected
reference. Any given invocation of this operation may fail
(return false) spuriously, but repeated invocation
when the current value holds the expected value and no other
thread is also attempting to set the value will eventually
succeed.
| expectedReference | the expected value of the reference |
|---|---|
| newMark | the new value for the mark |
Atomically sets the value of both the reference and mark
to the given update values if the
current reference is == to the expected reference
and the current mark is equal to the expected mark.
| expectedReference | the expected value of the reference |
|---|---|
| newReference | the new value for the reference |
| expectedMark | the expected value of the mark |
| newMark | the new value for the mark |
Returns the current values of both the reference and the mark.
Typical usage is boolean[1] holder; ref = v.get(holder); .
| markHolder | an array of size of at least one. On return,
markholder[0] will hold the value of the mark. |
|---|
Returns the current value of the reference.
Returns the current value of the mark.
Unconditionally sets the value of both the reference and mark.
| newReference | the new value for the reference |
|---|---|
| newMark | the new value for the mark |
Atomically sets the value of both the reference and mark
to the given update values if the
current reference is == to the expected reference
and the current mark is equal to the expected mark.
May fail spuriously
and does not provide ordering guarantees, so is only rarely an
appropriate alternative to compareAndSet.
| expectedReference | the expected value of the reference |
|---|---|
| newReference | the new value for the reference |
| expectedMark | the expected value of the mark |
| newMark | the new value for the mark |