/// <summary>
/// Returns the current most RAM consuming non-pending <see cref="ThreadState"/> with
/// at least one indexed document.
/// <para/>
/// This method will never return <c>null</c>
/// </summary>
protected virtual ThreadState FindLargestNonPendingWriter(DocumentsWriterFlushControl control, ThreadState perThreadState)
{
Debug.Assert(perThreadState.dwpt.NumDocsInRAM > 0);
long maxRamSoFar = perThreadState.bytesUsed;
// the dwpt which needs to be flushed eventually
ThreadState maxRamUsingThreadState = perThreadState;
Debug.Assert(!perThreadState.flushPending, "DWPT should have flushed");
IEnumerator <ThreadState> activePerThreadsIterator = control.AllActiveThreadStates();
while (activePerThreadsIterator.MoveNext())
{
ThreadState next = activePerThreadsIterator.Current;
if (!next.flushPending)
{
long nextRam = next.bytesUsed;
if (nextRam > maxRamSoFar && next.dwpt.NumDocsInRAM > 0)
{
maxRamSoFar = nextRam;
maxRamUsingThreadState = next;
}
}
}
Debug.Assert(AssertMessage("set largest ram consuming thread pending on lower watermark"));
return(maxRamUsingThreadState);
}
internal virtual void AssertActiveBytesAfter(DocumentsWriterFlushControl flushControl)
{
IEnumerator <ThreadState> allActiveThreads = flushControl.AllActiveThreadStates();
long bytesUsed = 0;
while (allActiveThreads.MoveNext())
{
ThreadState next = allActiveThreads.Current;
if (next.DocumentsWriterPerThread != null)
{
bytesUsed += next.DocumentsWriterPerThread.BytesUsed;
}
}
Assert.AreEqual(bytesUsed, flushControl.ActiveBytes);
}
internal static void FindPending(DocumentsWriterFlushControl flushControl, List <ThreadState> pending, List <ThreadState> notPending)
{
IEnumerator <ThreadState> allActiveThreads = flushControl.AllActiveThreadStates();
while (allActiveThreads.MoveNext())
{
ThreadState next = allActiveThreads.Current;
if (next.IsFlushPending)
{
pending.Add(next);
}
else
{
notPending.Add(next);
}
}
}