/// <summary>
/// Work load for getting full sub-tree
/// </summary>
/// <param name="client">RingMasterClient object</param>
/// <param name="token">Cancellation token</param>
/// <param name="threadId">Thread sequence number</param>
/// <returns>Async task</returns>
private Task GetFullSubtreeThread(IRingMasterRequestHandler client, CancellationToken token, int threadId)
{
int taskCount = 0;
var clock = Stopwatch.StartNew();
while (!token.IsCancellationRequested)
{
while (this.QueuedNodes.TryDequeue(out string path) && !token.IsCancellationRequested)
{
SpinWait.SpinUntil(() => taskCount < this.AsyncTaskCount || token.IsCancellationRequested);
var startTime = clock.Elapsed;
var task = client.GetFullSubtree(path, true)
.ContinueWith(
t =>
{
Interlocked.Decrement(ref taskCount);
if (t.Exception != null)
{
this.IncrementTotalFailures();
this.Log($"Failed to get full subtree on path {path}: {t.Exception.Message}");
}
else
{
var children = t.Result.Children;
this.AddTotalDataSize(children.Sum(c => c.Data.Length));
this.IncrementTotalDataCount(children.Count);
var duration = (clock.Elapsed - startTime).TotalMilliseconds;
MdmHelper.LogOperationDuration((long)duration, OperationType.GetFullSubtree);
}
});
Interlocked.Increment(ref taskCount);
this.QueuedNodes.Enqueue(path);
}
}
SpinWait.SpinUntil(() => taskCount == 0);
return(Task.FromResult(0));
}