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Gaurd access to the pending list better. 

git-svn-id: https://svn.apache.org/repos/asf/incubator/activemq/trunk@397985 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Hiram R. Chirino 2006-04-28 19:13:54 +00:00
parent f5f1366e4b
commit d65ba8034b
4 changed files with 35 additions and 41 deletions
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42
activemq-core/src/main/java/org/apache/activemq/broker/region/DurableTopicSubscription.java
View File

@ -63,9 +63,7 @@ public class DurableTopicSubscription extends PrefetchSubscription {
Topic topic = (Topic) destination;
topic.activate(context, this);
}
if( !isFull() ) {
dispatchMatched();
}
dispatchMatched();
}
synchronized public void activate(ConnectionContext context, ConsumerInfo info) throws Exception {
@ -79,9 +77,7 @@ public class DurableTopicSubscription extends PrefetchSubscription {
topic.activate(context, this);
}
}
if( !isFull() ) {
dispatchMatched();
}
dispatchMatched();
}
}
@ -104,7 +100,9 @@ public class DurableTopicSubscription extends PrefetchSubscription {
redeliveredMessages.put(node.getMessageId(), new Integer(1));
}
if( keepDurableSubsActive ) {
pending.addFirst(node);
synchronized(pending) {
pending.addFirst(node);
}
} else {
node.decrementReferenceCount();
}
@ -112,11 +110,13 @@ public class DurableTopicSubscription extends PrefetchSubscription {
}
if( !keepDurableSubsActive ) {
for (Iterator iter = pending.iterator(); iter.hasNext();) {
MessageReference node = (MessageReference) iter.next();
node.decrementReferenceCount();
iter.remove();
}
synchronized(pending) {
for (Iterator iter = pending.iterator(); iter.hasNext();) {
MessageReference node = (MessageReference) iter.next();
node.decrementReferenceCount();
iter.remove();
}
}
}
prefetchExtension=0;
}
@ -171,7 +171,7 @@ public class DurableTopicSubscription extends PrefetchSubscription {
", destinations="+destinations.size()+
", dispatched="+dispatched.size()+
", delivered="+this.prefetchExtension+
", pending="+this.pending.size();
", pending="+getPendingQueueSize();
}
public String getClientId() {
@ -186,13 +186,15 @@ public class DurableTopicSubscription extends PrefetchSubscription {
* Release any references that we are holding.
*/
synchronized public void destroy() {
for (Iterator iter = pending.iterator(); iter.hasNext();) {
MessageReference node = (MessageReference) iter.next();
node.decrementReferenceCount();
}
pending.clear();
synchronized(pending) {
for (Iterator iter = pending.iterator(); iter.hasNext();) {
MessageReference node = (MessageReference) iter.next();
node.decrementReferenceCount();
}
pending.clear();
}
for (Iterator iter = dispatched.iterator(); iter.hasNext();) {
MessageReference node = (MessageReference) iter.next();
node.decrementReferenceCount();

30
activemq-core/src/main/java/org/apache/activemq/broker/region/PrefetchSubscription.java
View File

@ -94,7 +94,6 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
synchronized public void acknowledge(final ConnectionContext context,final MessageAck ack) throws Exception{
// Handle the standard acknowledgment case.
boolean wasFull=isFull();
if(ack.isStandardAck()){
// Acknowledge all dispatched messages up till the message id of the acknowledgment.
int index=0;
@ -129,9 +128,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
prefetchExtension=Math.max(prefetchExtension,index+1);
else
prefetchExtension=Math.max(0,prefetchExtension-(index+1));
if(wasFull&&!isFull()){
dispatchMatched();
}
dispatchMatched();
return;
}else{
// System.out.println("no match: "+ack.getLastMessageId()+","+messageId);
@ -147,9 +144,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
final MessageReference node=(MessageReference) iter.next();
if(ack.getLastMessageId().equals(node.getMessageId())){
prefetchExtension=Math.max(prefetchExtension,index+1);
if(wasFull&&!isFull()){
dispatchMatched();
}
dispatchMatched();
return;
}
}
@ -176,9 +171,7 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
acknowledge(context,ack,node);
if(ack.getLastMessageId().equals(messageId)){
prefetchExtension=Math.max(0,prefetchExtension-(index+1));
if(wasFull&&!isFull()){
dispatchMatched();
}
dispatchMatched();
return;
}
}
@ -226,8 +219,10 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
return (dispatched.size()-prefetchExtension) >= (info.getPrefetchSize() *.9);
}
synchronized public int getPendingQueueSize(){
return pending.size();
public int getPendingQueueSize(){
synchronized(pending) {
return pending.size();
}
}
synchronized public int getDispatchedQueueSize(){
@ -312,16 +307,13 @@ abstract public class PrefetchSubscription extends AbstractSubscription{
}
synchronized protected void onDispatch(final MessageReference node,final Message message){
boolean wasFull=isFull();
if(node.getRegionDestination()!=null){
node.getRegionDestination().getDestinationStatistics().onMessageDequeue(message);
context.getConnection().getStatistics().onMessageDequeue(message);
if(wasFull&&!isFull()){
try{
dispatchMatched();
}catch(IOException e){
context.getConnection().serviceException(e);
}
try{
dispatchMatched();
}catch(IOException e){
context.getConnection().serviceException(e);
}
}
}

2
activemq-core/src/main/java/org/apache/activemq/broker/region/QueueBrowserSubscription.java
View File

@ -47,7 +47,7 @@ public class QueueBrowserSubscription extends QueueSubscription {
", destinations="+destinations.size()+
", dispatched="+dispatched.size()+
", delivered="+this.prefetchExtension+
", pending="+this.pending.size();
", pending="+getPendingQueueSize();
}
public void browseDone() throws Exception {

2
activemq-core/src/main/java/org/apache/activemq/broker/region/QueueSubscription.java
View File

@ -125,7 +125,7 @@ public class QueueSubscription extends PrefetchSubscription implements LockOwner
", destinations="+destinations.size()+
", dispatched="+dispatched.size()+
", delivered="+this.prefetchExtension+
", pending="+this.pending.size();
", pending="+getPendingQueueSize();
}
public int getLockPriority() {