public void LessOrEqual(RbKey key, out int count, out error err)
{
count = 0;
err = null;
if (key == null)
{
err = ErrorDef.ArgumentNilError("key");
return;
}
RbTree tree;
this.checkStateAndGetTree(out tree, out err);
if (err != null)
{
return;
}
try
{
this.walkLessOrEqual(tree.root, key);
count = this.CurrentCount();
}
finally
{
Interlocked.CompareExchange(ref this.state, (long)IterationState.iteratorReady,
(long)IterationState.iteratorWalking);
}
}
public void Between(RbKey loKey, RbKey hiKey, out int count, out error err)
{
count = 0;
err = null;
if (loKey == null)
{
err = ErrorDef.ArgumentNilError("loKey");
return;
}
if (hiKey == null)
{
err = ErrorDef.ArgumentNilError("hiKey");
return;
}
RbTree tree;
this.checkStateAndGetTree(out tree, out err);
if (err != null)
{
return;
}
try
{
var cmp = loKey.ComparedTo(hiKey);
switch (cmp)
{
case KeyComparison.KeysAreEqual:
var node = tree.find(loKey);
if (node != null)
{
count = 1;
this.callback(this, node.key, node.value);
return;
}
return;
case KeyComparison.KeyIsGreater:
var tmp = loKey;
loKey = hiKey;
hiKey = tmp;
break;
}
this.walkBetween(tree.root, loKey, hiKey);
count = this.CurrentCount();
}
finally
{
Interlocked.CompareExchange(ref this.state, (long)IterationState.iteratorReady,
(long)IterationState.iteratorWalking);
}
}
// NewRbIterator creates a new iterator for the given RbTree
public RbIterator NewRbIterator(RbIterationCallback callback, out error err)
{
err = null;
if (callback == null)
{
err = ErrorDef.ArgumentNilError("callback");
return(null);
}
return(new rbIterationContext {
tree = this,
callback = callback,
state = (long)IterationState.iteratorReady,
});
}