/// <summary>
/// 作为服务器接收PLC数据
/// </summary>
/// <returns></returns>
public void ServerReceive()
{
while (null != this.socketServerWrapper.TempClientSocket)
{
//接收PLC客户端发送过来的消息并回复
byte[] receiveBuf = new byte[256];
if (this.socketServerWrapper.Read(receiveBuf))
{
ModBusRequestHeader tempModBusReqHeader = new ModBusRequestHeader(receiveBuf, 0);
ModBusResponseHeader respHeader = new ModBusResponseHeader(tempModBusReqHeader);
//将接收到的数据追加到消息队列中
PLCData data = new PLCData(receiveBuf, ModBusRequestHeader.TotalLength);
lock (BasicData.PLCQueue)
{
BasicData.PLCQueue.Enqueue(data);
}
byte[] resp = new byte[ModBusResponseHeader.TotalLength];
respHeader.ToBytes(resp, 0);
//默认回复PLC ModBus protocol头
this.socketServerWrapper.Write(resp);
}
else //客户端终端连接
{
Flag.PLCConnected = false;
this.socketServerWrapper.TempClientSocket.Close();
this.socketServerWrapper.TempClientSocket = null;
Log.Write("Server： PLC断开了连接.");
}
}
//重新监听
Listen();
}
/// <summary>
/// 更新UI文本框邮件数据处理逻辑
/// </summary>
private void UpdateUI()
{
while(true)
{
if (needUpdate)
{
if (BasicData.PLCQueue.Count > 0)
{
PLCData data = new PLCData();
lock (BasicData.PLCQueue)
{
data = BasicData.PLCQueue.Dequeue();
}
if (this.InvokeRequired)
{
//更新UI数据
this.Invoke(UpdateUIFunction, new object[] { data.MailId, data.Volume, data.Weight });
//开启计时器
this.Invoke(UpdateTimerFunction);
}
else
{
UpdateUIAction(data.MailId, data.Volume, data.Weight);
UpdateTimerAction();
}
needUpdate = false;
//查找对应的图像及条码信息并显示出来
bool findPic = false;
while (!findPic && !needUpdate)
{
//查找条码
if (BasicData.OBRQueue.Count > 0)
{
//OBRData obrData = new OBRData();
OBRData obrData = BasicData.OBRQueue.Peek();
//匹配Mail ID
// 当OBR中含有PLC未传出来的邮件ID
while (obrData.MailId < data.MailId && BasicData.OBRQueue.Count > 0)
{
lock (BasicData.OBRQueue)
{
BasicData.OBRQueue.Dequeue();
}
obrData = BasicData.OBRQueue.Peek();
}
// 当ID等于PLC数据ID
if (obrData.MailId == data.MailId)
{
lock (BasicData.OBRQueue)
{
BasicData.OBRQueue.Dequeue();
}
if (this.InvokeRequired)
{
//更新UI数据
this.Invoke(UpdateBarcodeFunction, new object[] { obrData.BarCode });
}
else
{
UpdateBarcodeAction(obrData.BarCode);
}
}
}
//查找图像
string fileName = data.MailId.ToString() + ".jpg";
string filePath = ConfigurationManager.AppSettings["PicDirectory"] + fileName; //d:\MailPic\1.jpg
if (System.IO.File.Exists(filePath))
{
if (this.InvokeRequired)
{
this.Invoke(UpdatePicFunction, new object[] { filePath });
}
else
{
UpdatePicAction(filePath);
}
findPic = true;
}
}
//add for test
//Thread.Sleep(10);
//wrapper.ClientSend(data.MailId.ToString(), OperationAction.Normal);
//needUpdate = true;
//
}
}
}
}