internal void QueueCometWaitRequest(CometWaitRequest request)
{
lock (state)
{
WaitRequests.Add(request);
}
}
private void CheckForIdleCometWaitRequest(CometWaitRequest request, CometClient cometClient)
{
lock (state)
{
if (DateTime.Now.Subtract(request.DateDeactivated.Value).TotalSeconds >= cometClient.ConnectionIdleSeconds)
{
// ok, this dude has timed out, so we remove it
StateManager.KillIdleCometClient(cometClient.PrivateToken);
// and deque the request
WaitRequests.Remove(request);
}
}
}
internal void DequeueCometWaitRequest(string privateToken)
{
lock (state)
{
for (int i = 0; i < WaitRequests.Count; i++)
{
CometWaitRequest request = WaitRequests[i];
if (request.ClientPrivateToken == privateToken)
{
WaitRequests.Remove(request);
break;
}
}
}
}
// 线程核心执行函数
private void QueueCometWaitRequest_WaitCallback()
{
while (true)
{
CometWaitRequest[] processRequest;
lock (state)
{
processRequest = WaitRequests.ToArray();
}
//if (processRequest.Length == 0)
// break;
if (processRequest.Length == 0)
{
Thread.Sleep(100);
}
else
{
for (int i = 0; i < processRequest.Length; i++)
{
try
{
CometClient cometClient = StateManager.StateProvider.GetCometClient(processRequest[i].ClientPrivateToken);
if (processRequest[i].Active)
{
Thread.Sleep(100);
if (DateTime.Now.Subtract(processRequest[i].DateTimeAdded).TotalSeconds >= cometClient.ConnectionTimeoutSeconds)
{
DeactivateCometWaitRequest(processRequest[i]);
CometMessage timeoutMessage = new CometMessage()
{
MessageId = 0,
Tip = "aspNetComet.timeout",
Content = null
};
processRequest[i].Result.CometMessages = new CometMessage[] { timeoutMessage };
this.QueueCometWaitRequest_Finished(processRequest[i]);
}
else
{
// 这里是消息响应的根本，响应给客户端的是 消息数组
CometMessage[] messages = CheckForServerPushMessages(processRequest[i]);
if (messages != null && messages.Length > 0)
{
processRequest[i].Result.CometMessages = messages;
DeactivateCometWaitRequest(processRequest[i]);
QueueCometWaitRequest_Finished(processRequest[i]);
}
}
}
else
{
// 长连接 连接超时，断网或者 离线
this.CheckForIdleCometWaitRequest(processRequest[i], cometClient);
}
}
catch (Exception ex)
{
if (processRequest[i].Active)
{
// ok, this one has screwed up, so
// we need to dequeue the request from ASP.NET, basically disable it and return
// dequeue the request
DeactivateCometWaitRequest(processRequest[i]);
// get the message
CometMessage errorMessage = new CometMessage()
{
MessageId = 0,
Tip = "aspNetComet.error",
Content = ex.Message
};
//
// ok, we we timeout the message
processRequest[i].Result.CometMessages = new CometMessage[] { errorMessage };
// call the message
QueueCometWaitRequest_Finished(processRequest[i]);
}
else
{
// this is not an active request, so we dequeue it from the
// thread
DequeueCometWaitRequest(processRequest[i].ClientPrivateToken);
}
}
}
}
}
}
