ReentrantLock.IsHeldByCurrentThread Property
Definition
Important
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Queries if this lock is held by the current thread.
public virtual bool IsHeldByCurrentThread { [Android.Runtime.Register("isHeldByCurrentThread", "()Z", "GetIsHeldByCurrentThreadHandler")] get; }[<get: Android.Runtime.Register("isHeldByCurrentThread", "()Z", "GetIsHeldByCurrentThreadHandler")>]
member this.IsHeldByCurrentThread : boolProperty Value
true if current thread holds this lock and
false otherwise
- Attributes
Remarks
Queries if this lock is held by the current thread.
Analogous to the Thread#holdsLock(Object) method for built-in monitor locks, this method is typically used for debugging and testing. For example, a method that should only be called while a lock is held can assert that this is the case:
{@code
class X {
final ReentrantLock lock = new ReentrantLock();
// ...
public void m() {
assert lock.isHeldByCurrentThread();
// ... method body
}
}}
It can also be used to ensure that a reentrant lock is used in a non-reentrant manner, for example:
{@code
class X {
final ReentrantLock lock = new ReentrantLock();
// ...
public void m() {
assert !lock.isHeldByCurrentThread();
lock.lock();
try {
// ... method body
} finally {
lock.unlock();
}
}
}}
Java documentation for java.util.concurrent.locks.ReentrantLock.isHeldByCurrentThread().
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