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fix for 100% cpu bug during dht selection

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see also: http://www.yacy-forum.de/viewtopic.php?p=34068#34068

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@3570 6c8d7289-2bf4-0310-a012-ef5d649a1542
This commit is contained in:
orbiter 2007-04-13 13:40:19 +00:00
parent f15fa7c5b1
commit 063063aa0c
2 changed files with 9 additions and 2 deletions
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3
source/de/anomic/kelondro/kelondroRotateIterator.java
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@ -47,6 +47,9 @@ public class kelondroRotateIterator implements kelondroCloneableIterator {
}
public Object next() {
// attention: this iterator has no termination - on purpose.
// it must be taken care that a calling method has a termination predicate different
// from the hasNext() method
if (!(a.hasNext())) {
a = (kelondroCloneableIterator) clone.clone(modifier);
}

8
source/de/anomic/plasma/plasmaWordIndex.java
View File

@ -496,14 +496,18 @@ public final class plasmaWordIndex implements indexRI {
Iterator i = wordContainers(startHash, ram, rot);
if (ram) count = Math.min(dhtOutCache.size(), count);
indexContainer container;
// this loop does not terminate using the i.hasNex() predicate when rot == true
// because then the underlying iterator is a rotating iterator without termination
// in this case a termination must be ensured with a counter
// It must also be ensured that the counter is in/decreased every loop
while ((count > 0) && (i.hasNext())) {
container = (indexContainer) i.next();
if ((container != null) && (container.size() > 0)) {
containers.add(container);
count--;
}
count--; // decrease counter even if the container was null or empty to ensure termination
}
return containers;
return containers; // this may return less containers as demanded
}
public kelondroCloneableIterator wordContainers(String startHash, boolean ram, boolean rot) {