JBoss Parent POM 1.7.0.Final · org.wildfly.common.lock.SpinLock

Modifier and Type	Field and Description
private static final int	defaultSpinLimit
private int	level
private volatile Thread	owner
private static final long	ownerOffset
private final int	spinLimit

Access	Constructor and Description
public	SpinLock() Construct a new instance.
public	SpinLock(final int the spin limit to use for this instance spinLimit) Construct a new instance with the given spin limit.

Method Summary

Modifier and Type	Method and Description
public boolean	Returns: `true`; the lock is fair isFair() Implements org.wildfly.common.lock.ExtendedLock.isFair. Determine if this lock is fair.
public boolean	Returns: `true` if the lock is held by the calling thread, `false` otherwise isHeldByCurrentThread() Implements org.wildfly.common.lock.ExtendedLock.isHeldByCurrentThread. Determine if this spin lock is held by the calling thread.
public boolean	Returns: `true` if the lock is held by any thread, `false` otherwise isLocked() Implements org.wildfly.common.lock.ExtendedLock.isLocked. Determine if this spin lock is held.
public void	lock() Implements java.util.concurrent.locks.Lock.lock. Acquire the lock by spinning until it is held.
public void	lockInterruptibly() Implements java.util.concurrent.locks.Lock.lockInterruptibly. Acquire the lock by spinning until it is held or the thread is interrupted.
public Condition	Returns: nothing newCondition() Implements java.util.concurrent.locks.Lock.newCondition. Unsupported.
public boolean	Returns: `true` if the lock was acquired, `false` otherwise tryLock() Implements java.util.concurrent.locks.Lock.tryLock. Try to acquire the lock, returning immediately whether or not the lock was acquired.
public boolean	Returns: nothing tryLock(final long ignored time, final TimeUnit ignored unit) Implements java.util.concurrent.locks.Lock.tryLock. Unsupported.
public void	unlock() Implements java.util.concurrent.locks.Lock.unlock. Release the lock.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

defaultSpinLimit	back to summary
private static final int defaultSpinLimit

level	back to summary
private int level

owner	back to summary
private volatile Thread owner Annotations @SuppressWarnings:unused

ownerOffset	back to summary
private static final long ownerOffset

spinLimit	back to summary
private final int spinLimit

SpinLock	back to summary
public SpinLock() Construct a new instance.

SpinLock	back to summary
public SpinLock(final int spinLimit) Construct a new instance with the given spin limit. Parameters spinLimit:int the spin limit to use for this instance

Method Detail

isFair back to summary

isFair	back to summary
public boolean isFair() Implements org.wildfly.common.lock.ExtendedLock.isFair. Determine if this lock is fair. Returns:boolean `true`; the lock is fair

public boolean isFair()

Implements org.wildfly.common.lock.ExtendedLock.isFair.

Determine if this lock is fair.

Returns:boolean: true; the lock is fair

isHeldByCurrentThread back to summary

isHeldByCurrentThread	back to summary
public boolean isHeldByCurrentThread() Implements org.wildfly.common.lock.ExtendedLock.isHeldByCurrentThread. Determine if this spin lock is held by the calling thread. Useful for assertions. Returns:boolean `true` if the lock is held by the calling thread, `false` otherwise

public boolean isHeldByCurrentThread()

Implements org.wildfly.common.lock.ExtendedLock.isHeldByCurrentThread.

Determine if this spin lock is held by the calling thread. Useful for assertions.

Returns:boolean: true if the lock is held by the calling thread, false otherwise

isLocked back to summary

isLocked	back to summary
public boolean isLocked() Implements org.wildfly.common.lock.ExtendedLock.isLocked. Determine if this spin lock is held. Useful for assertions. Returns:boolean `true` if the lock is held by any thread, `false` otherwise

public boolean isLocked()

Implements org.wildfly.common.lock.ExtendedLock.isLocked.

Determine if this spin lock is held. Useful for assertions.

Returns:boolean: true if the lock is held by any thread, false otherwise

lock	back to summary
public void lock() Implements java.util.concurrent.locks.Lock.lock. Acquire the lock by spinning until it is held.

lock

back to summary

public void lock()

Implements java.util.concurrent.locks.Lock.lock.

Acquire the lock by spinning until it is held.

lockInterruptibly	back to summary
public void lockInterruptibly() throws InterruptedException Implements java.util.concurrent.locks.Lock.lockInterruptibly. Acquire the lock by spinning until it is held or the thread is interrupted. Exceptions InterruptedException: if the thread is interrupted before the lock can be acquired

lockInterruptibly

back to summary

public void lockInterruptibly() throws InterruptedException

Implements java.util.concurrent.locks.Lock.lockInterruptibly.

Acquire the lock by spinning until it is held or the thread is interrupted.

Exceptions

InterruptedException:: if the thread is interrupted before the lock can be acquired

newCondition	back to summary
public Condition newCondition() throws UnsupportedOperationException Implements java.util.concurrent.locks.Lock.newCondition. Unsupported. Returns:Condition nothing Exceptions UnsupportedOperationException: always

newCondition

back to summary

public Condition newCondition() throws UnsupportedOperationException

Implements java.util.concurrent.locks.Lock.newCondition.

Unsupported.

Returns:Condition

nothing

Exceptions

UnsupportedOperationException:: always

tryLock back to summary

tryLock	back to summary
public boolean tryLock() Implements java.util.concurrent.locks.Lock.tryLock. Try to acquire the lock, returning immediately whether or not the lock was acquired. Returns:boolean `true` if the lock was acquired, `false` otherwise

public boolean tryLock()

Implements java.util.concurrent.locks.Lock.tryLock.

Try to acquire the lock, returning immediately whether or not the lock was acquired.

Returns:boolean: true if the lock was acquired, false otherwise

tryLock	back to summary
public boolean tryLock(final long time, final TimeUnit unit) throws UnsupportedOperationException Implements java.util.concurrent.locks.Lock.tryLock. Unsupported. Parameters time:long ignored unit:TimeUnit ignored Returns:boolean nothing Exceptions UnsupportedOperationException: always

tryLock

back to summary

public boolean tryLock(final long time, final TimeUnit unit) throws UnsupportedOperationException

Implements java.util.concurrent.locks.Lock.tryLock.

Unsupported.

Parameters

time:long: ignored
unit:TimeUnit: ignored

Returns:boolean

nothing

Exceptions

UnsupportedOperationException:: always

unlock	back to summary
public void unlock() Implements java.util.concurrent.locks.Lock.unlock. Release the lock. Exceptions IllegalMonitorStateException: if the lock is not held by the current thread

unlock

back to summary

public void unlock()

Implements java.util.concurrent.locks.Lock.unlock.

Release the lock.

Exceptions

IllegalMonitorStateException:: if the lock is not held by the current thread

public Class SpinLock

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail