Package org.jgroups.protocols

Class Locking.ClientLock

java.lang.Object

org.jgroups.protocols.Locking.ClientLock

All Implemented Interfaces:

java.lang.Comparable<Locking.ClientLock>, java.util.concurrent.locks.Lock

Enclosing class:

Locking

protected class Locking.ClientLock
extends java.lang.Object
implements java.util.concurrent.locks.Lock, java.lang.Comparable<Locking.ClientLock>

Implementation of Lock. This is a client stub communicates with a server equivalent. The semantics are more or less those of Lock, but may differ slightly. For details see LockService.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	acquired
protected Locking.ClientCondition	condition
protected boolean	denied
protected boolean	is_trylock
protected int	lock_id
protected java.lang.String	name
protected Owner	owner
protected long	timeout

Constructor Summary

Constructors

Constructor	Description
ClientLock(java.lang.String name)
ClientLock(java.lang.String name, Owner owner)

Method Summary

Modifier and Type	Method	Description
protected void	_unlock(boolean force)
protected void	_unlockOK()
protected void	acquire(boolean throwInterrupt)
protected boolean	acquireTryLock(long timeout, boolean use_timeout)
int	compareTo(Locking.ClientLock o)
boolean	equals(java.lang.Object obj)
protected void	handleLockGrantedResponse(int lock_id)
protected void	handleLockReleasedResponse(int lock_id)
boolean	isHeld()
void	lock()
protected void	lockDenied(int lock_id)
protected void	lockGranted(int lock_id)
void	lockInterruptibly()
java.util.concurrent.locks.Condition	newCondition()
java.lang.String	toString()
boolean	tryLock()
boolean	tryLock(long time, java.util.concurrent.TimeUnit unit)
void	unlock()

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

name

protected final java.lang.String name

owner

protected Owner owner

acquired

protected volatile boolean acquired

denied

protected volatile boolean denied

is_trylock

protected volatile boolean is_trylock

timeout

protected long timeout

condition

protected final Locking.ClientCondition condition

lock_id

protected final int lock_id

Constructor Detail

ClientLock

public ClientLock(java.lang.String name)

ClientLock

public ClientLock(java.lang.String name,
                  Owner owner)

Method Detail

isHeld

public boolean isHeld()

lock

public void lock()

Specified by:

lock in interface java.util.concurrent.locks.Lock

lockInterruptibly

public void lockInterruptibly()
                       throws java.lang.InterruptedException

Specified by:

lockInterruptibly in interface java.util.concurrent.locks.Lock

Throws:

java.lang.InterruptedException

tryLock

public boolean tryLock()

Specified by:

tryLock in interface java.util.concurrent.locks.Lock

tryLock

public boolean tryLock(long time,
                       java.util.concurrent.TimeUnit unit)
                throws java.lang.InterruptedException

Specified by:

tryLock in interface java.util.concurrent.locks.Lock

Throws:

java.lang.InterruptedException

unlock

public void unlock()

Specified by:

unlock in interface java.util.concurrent.locks.Lock

newCondition

public java.util.concurrent.locks.Condition newCondition()

Specified by:

newCondition in interface java.util.concurrent.locks.Lock

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

lockGranted

protected void lockGranted(int lock_id)

lockDenied

protected void lockDenied(int lock_id)

handleLockGrantedResponse

protected void handleLockGrantedResponse(int lock_id)

handleLockReleasedResponse

protected void handleLockReleasedResponse(int lock_id)

acquire

protected void acquire(boolean throwInterrupt)
                throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

_unlock

protected void _unlock(boolean force)

_unlockOK

protected void _unlockOK()

acquireTryLock

protected boolean acquireTryLock(long timeout,
                                 boolean use_timeout)
                          throws java.lang.InterruptedException

Throws:

java.lang.InterruptedException

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

compareTo

public int compareTo(Locking.ClientLock o)

Specified by:

compareTo in interface java.lang.Comparable<Locking.ClientLock>