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Reverted my patch and applied Doug Lea's patch

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This commit is contained in:
Trustin Lee 2008-11-14 22:01:23 +00:00
parent 3b5c36782d
commit 90045fd487
1 changed files with 2 additions and 14 deletions
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16
src/main/java/org/jboss/netty/util/LinkedTransferQueue.java
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@ -301,12 +301,9 @@ public class LinkedTransferQueue<E> extends AbstractQueue<E> implements Blocking
advanceHead(pred, s); // unlink if head
if (x == s) {
return clean(pred, s);
} else if (x != null) {
s.set(s); // avoid garbage retention
return x;
} else {
return e;
}
s.set(s); // mark as off-list
return x != null? x : e;
}
if (mode == TIMEOUT) {
@ -356,7 +353,6 @@ public class LinkedTransferQueue<E> extends AbstractQueue<E> implements Blocking
}
}
QNode olddp = UNDEFINED;
for (;;) {
if (pred.next != s) {
return null;
@ -386,7 +382,6 @@ public class LinkedTransferQueue<E> extends AbstractQueue<E> implements Blocking
}
}
boolean stateUnchanged = true;
QNode dp = cleanMe.get();
if (dp != null) { // Try unlinking previous cancelled node
QNode d = dp.next;
@ -399,17 +394,10 @@ public class LinkedTransferQueue<E> extends AbstractQueue<E> implements Blocking
dn != d && // that is on list
dp.casNext(d, dn)) {
cleanMe.compareAndSet(dp, null);
stateUnchanged = false;
}
if (dp == pred) {
return null; // s is already saved node
}
if (stateUnchanged && olddp == dp) {
return null; // infinite loop expected - bail out
} else {
olddp = dp;
}
}
else if (cleanMe.compareAndSet(null, pred)) {
return null; // Postpone cleaning s