DNSStatefulObject.DNSStatefulObjectSemaphore

java.lang.Object

javax.jmdns.impl.DNSStatefulObject.DNSStatefulObjectSemaphore

Enclosing interface:: DNSStatefulObject

public static final class DNSStatefulObject.DNSStatefulObjectSemaphore extends Object

This class define a semaphore. On this multiple threads can wait the arrival of one event. Thread wait for a maximum defined by the timeout.

Implementation note: this class is based on Semaphore so that they can be released by the timeout timer.

Field Summary

Fields

Modifier and Type

Field

Description

private final String

_name

private final ConcurrentMap<Thread,Semaphore>

_semaphores

private static org.slf4j.Logger

logger
Constructor Summary

Constructors

Constructor

Description

DNSStatefulObjectSemaphore(String name)
Method Summary

Modifier and Type

Method

Description

void

signalEvent()

Signals the semaphore when the event arrives.

String

toString()

void

waitForEvent(long timeout)

Blocks the current thread until the event arrives or the timeout expires.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details
- logger
  
  private static org.slf4j.Logger logger
- _name
  
  private final String _name
- _semaphores
  
  private final ConcurrentMap<Thread,Semaphore> _semaphores
Constructor Details
- DNSStatefulObjectSemaphore
  
  public DNSStatefulObjectSemaphore(String name)
  
  Parameters:
  
  name - Semaphore name for debugging purposes.
Method Details
- waitForEvent
  
  public void waitForEvent(long timeout)
  
  Blocks the current thread until the event arrives or the timeout expires.
  
  Parameters:
  
  timeout - wait period for the event
- signalEvent
  
  public void signalEvent()
  
  Signals the semaphore when the event arrives.
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class Object