net.gdface.utils

Class ShareLock

java.lang.Object

net.gdface.utils.ShareLock

All Implemented Interfaces:

java.util.concurrent.locks.Lock

public class ShareLock
extends java.lang.Object
implements java.util.concurrent.locks.Lock

共享锁
实现固定数目 maxShareCount 的资源共享锁,限制并发线程数目.
同一个线程内嵌套加锁解锁,不会重复计数

Author:

guyadong

See Also:

Lock, AbstractQueuedSynchronizer

Constructor Summary

Constructors

Constructor and Description
ShareLock(int maxShareCount)

Method Summary

Modifier and Type	Method and Description
int	getMaxShareCount()
void	lock()
void	lockInterruptibly()
java.util.concurrent.locks.Condition	newCondition()
boolean	tryLock()
boolean	tryLock(long time, java.util.concurrent.TimeUnit unit)
void	unlock()

Methods inherited from class java.lang.Object

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

Constructor Detail

ShareLock

public ShareLock(int maxShareCount)

Parameters:

maxShareCount - 最大可用资源计数

Method Detail

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

newCondition

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

Specified by:

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

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

getMaxShareCount

public int getMaxShareCount()

Returns:

maxShareCount