/// <summary>
/// Warmup connection to each node
/// </summary>
/// <param name="callback">called when all nodes have been contacted</param>
public void Warmup(Action callback)
{
var aliveNodes = _cluster.Nodes.Where(n => !n.IsDead).ToList();
var answerToGet = aliveNodes.Count;
Action <MemcacheResponseHeader> onResponse = r =>
{
if (Interlocked.Decrement(ref answerToGet) == 0)
{
callback();
}
};
foreach (var node in aliveNodes)
{
var request = new NoOpRequest
{
Callback = onResponse,
RequestId = NextRequestId
};
if (!node.TrySend(request, _configuration.QueueTimeout))
{
onResponse(default(MemcacheResponseHeader));
}
}
}
public void Ping(Action <EndPoint, Status> callback)
{
var executionContext = TryCaptureExecutionContext();
foreach (var node in _cluster.Nodes)
{
if (node.IsDead)
{
callback(node.EndPoint, Status.InternalError);
}
else
{
var localNode = node;
var request = new NoOpRequest
{
Callback = r => ExecuteInContext(() => callback(localNode.EndPoint, r.Status), executionContext),
RequestId = NextRequestId
};
if (!node.TrySend(request, _configuration.QueueTimeout))
{
callback(node.EndPoint, Status.InternalError);
}
}
}
}
public NoOpResponse NoOpRequest(NoOpRequest request)
{
try
{
return(base.Channel.NoOpRequest(request));
}
catch (Exception ex)
{
string message = ex.Message;
return(null);
}
}
public void NoOpRequestFailTest()
{
Status status = Status.UnknownCommand;
var request = new NoOpRequest
{
Callback = (h) => status = h.Status,
};
var queryBuffer = request.GetQueryBuffer();
var header = new MemcacheResponseHeader {
Opcode = Opcode.NoOp, Status = Status.NoError
};
Assert.DoesNotThrow(request.Fail);
Assert.AreEqual(Status.InternalError, status);
}
public void NoOpRequestOkTest()
{
Status status = Status.UnknownCommand;
var request = new NoOpRequest
{
Callback = (h) => status = h.Status,
};
var queryBuffer = request.GetQueryBuffer();
Assert.IsNotNull(queryBuffer);
CollectionAssert.AreEqual(NOOP_QUERY, queryBuffer, "The noop query buffer is different of the expected one");
var header = new MemcacheResponseHeader {
Opcode = Opcode.NoOp, Status = Status.NoError
};
Assert.DoesNotThrow(() => request.HandleResponse(header, null, null, null));
Assert.AreEqual(Status.NoError, status);
}
