Class jsync.Semaphore

java.lang.Object
    |
    +----jsync.Semaphore

public class Semaphore

extends java.lang.Object

Constructor Summary

Semaphore() Create semaphore with zero counter value.

Semaphore(int initValue) Create semaphore with specified non-negative counter value.

 

Method Summary
void	signal() Increment value of the counter.
void	waitSemaphore() Wait for non-zero value of counter.
boolean	waitSemaphore(long timeout) Wait at most timeout miliseconds for non-zero value of counter.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

Semaphore

public Semaphore()

Create semaphore with zero counter value.

Semaphore

public Semaphore(int initValue)

Create semaphore with specified non-negative counter value.

Parameters:

initValue - initial value of semaphore counter

waitSemaphore

public void waitSemaphore()

Wait for non-zero value of counter.

waitSemaphore

public boolean waitSemaphore(long timeout)

Wait at most timeout miliseconds for non-zero value of counter.

Parameters:

timeout - the maximum time to wait in milliseconds.

Returns:

true if counter is not zero, false if wait() was terminated due to timeout expiration.

signal

public void signal()

Increment value of the counter. If there are waiting threads, exactly one of them will be awaken.