/// <summary>
/// 发送消息，并根据消息中的超时时间等待数据返回
/// </summary>
/// <param name="ieCommandMessage"></param>
/// <returns></returns>
public IeCommandMessage SendAndGet(IeCommandMessage ieCommandMessage)
{
try
{
if (!Send(ieCommandMessage, out var key))
{
return(null);
}
var startTime = DateTime.Now;
do
{
var messageObj = GetReturnValue(key);
if (messageObj != null)
{
return(messageObj);
}
} while (DateTime.Now - startTime < TimeSpan.FromMilliseconds(ieCommandMessage.TimeoutMillisecond));
throw new TimeoutException();
}
catch (Exception e)
{
//_cancellationTokenSource.Cancel();
throw e;
}
}
/// <summary>
/// 发送消息
/// </summary>
/// <param name="ieCommandMessage"></param>
/// <param name="returnDataDictionaryKey"></param>
/// <returns></returns>
private bool Send(IeCommandMessage ieCommandMessage, out string returnDataDictionaryKey)
{
returnDataDictionaryKey = ieCommandMessage.ReturnDataDictionaryKey = $"BrowserCommand{ieCommandMessage.ManagedThreadId.ToString().PadLeft(3, '0')}{(++_sharedMemoryId).ToString().PadLeft(6, '0')}";
if (!_returnData.TryAdd(ieCommandMessage.ReturnDataDictionaryKey, null))
{
return(false);
}
_processQueue.Enqueue(ieCommandMessage);
return(true);
}
/// <summary>
/// 该方法对入队的每个元素进行处理
/// </summary>
/// <param name="value"></param>
private void ProcessQueue_ProcessItemEvent(IeCommandMessage value)
{
Task.Factory.StartNew(() =>
{
do
{
value.ResultMessage = new ResultMessage
{
ReturnParameters = new
{
RunningId = ++_runningId
}
};
if (_returnData.TryGetValue(value.ReturnDataDictionaryKey, out var resultIeCommand) && resultIeCommand == null)
{
_returnData[value.ReturnDataDictionaryKey] = value;
}
if (_runningId == 50)
{
Thread.Sleep(value.TimeoutMillisecond + 1000);
}
Thread.Sleep(20);
value.IsTimeout = false;
value.ResultTime = DateTime.Now;
} while (value.IsTimeout);
}).Wait(value.TimeoutMillisecond);
if (value.IsTimeout)
{
throw new TimeoutException();
}
}
private static void Demo()
{
for (var i = 0; i < 100; i++)
{
var ieCommandManage = new IeCommandMessage
{
MethodName = "demo",
CommandMessage = new CommandMessage()
{
CustomId = "demoCustomId"
}
};
try
{
var returnIe = Singleton.Instance.SendAndGet(ieCommandManage);
Console.WriteLine($"after send : {JsonConvert.SerializeObject(returnIe?.ResultMessage)}");
}
catch (Exception e)
{
break;
}
}
}
/// <summary>
/// 处理异常
/// </summary>
/// <param name="obj">队列实例</param>
/// <param name="ex">异常对象</param>
/// <param name="value">出错的数据</param>
private void ProcessQueue_ProcessExceptionEvent(ProcessQueue <IeCommandMessage> obj, Exception ex, IeCommandMessage value)
{
Console.WriteLine($"ProcessQueue_ProcessExceptionEvent -> before stop {obj.GetInternalItemCount()}");
new Task(obj.StopAndClear).Start();
Console.WriteLine($"ProcessQueue_ProcessExceptionEvent -> after stop {obj.GetInternalItemCount()}");
}