org.eclipse.core.internal.registry

Class ReadWriteMonitor

java.lang.Object

org.eclipse.core.internal.registry.ReadWriteMonitor

public class ReadWriteMonitor
extends java.lang.Object

Monitor ensuring no more than one writer working concurrently. Multiple readers are allowed to perform simultaneously. This class was borrowed from org.eclipse.jdt.internal.core.search.indexing.

Constructor Summary

Constructors

Constructor and Description
ReadWriteMonitor()

Method Summary

Modifier and Type	Method and Description
void	enterRead() Concurrent reading is allowed Blocking only when already writing.
void	enterWrite() Only one writer at a time is allowed to perform Blocking only when already writing or reading.
void	exitRead() Only notify waiting writer(s) if last reader
void	exitWrite() When writing is over, all readers and possible writers are granted permission to restart concurrently
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadWriteMonitor

public ReadWriteMonitor()

Method Detail

enterRead

public void enterRead()

Concurrent reading is allowed Blocking only when already writing.

enterWrite

public void enterWrite()

Only one writer at a time is allowed to perform Blocking only when already writing or reading.

exitRead

public void exitRead()

Only notify waiting writer(s) if last reader

exitWrite

public void exitWrite()

When writing is over, all readers and possible writers are granted permission to restart concurrently

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object