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added better synchronization 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@550797 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
James Strachan 2007-06-26 13:06:32 +00:00
parent 8a5387f6ad
commit 8a0157a506
1 changed files with 6 additions and 4 deletions
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10
activemq-core/src/main/java/org/apache/activemq/memory/UsageManager.java
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@ -307,10 +307,12 @@ public class UsageManager implements Service{
} }
private void setPercentUsage(int value) { private void setPercentUsage(int value) {
int oldValue = percentUsage; synchronized (usageMutex) {
percentUsage = value; int oldValue = percentUsage;
if( oldValue!=value ) { percentUsage = value;
fireEvent(oldValue, value); if( oldValue!=value ) {
fireEvent(oldValue, value);
}
} }
} }