/// <summary>
/// 同步发送数据
/// </summary>
/// <param name="cBaseCommand">传入通信命令</param>
/// <returns>成功返回true,否则返回false</returns>
public override CommunicationState SendSymetric(CBase cSendCommand, CBase cDecodeCommand)
{
int nLen = 0;
if (!isUSBAvailable)
{
ProcessError(cSendCommand, "USB is unavailable !");
return(CommunicationState.CommSendError);
}
byte[] bBuf = cSendCommand.encode();
int nTotalDataLength = bBuf.Length;
if (cDecodeCommand == null)
{
cDecodeCommand = cSendCommand;
}
lock (this)
{
try
{
if (!outEndpoint.XferData(ref bBuf, ref nTotalDataLength))
{
Thread.Sleep(_delayms * 3);
if (inEndpoint.XferData(ref _receiveBufTemp, ref nTotalDataLength))
{
bBuf = cSendCommand.encode();
nTotalDataLength = bBuf.Length;
Thread.Sleep(_delayms * 3);
if (!outEndpoint.XferData(ref bBuf, ref nTotalDataLength))
{
ProcessError(cSendCommand, "Re-send data to usb error!" + GetUSBStatus());
return(CommunicationState.CommSendError);;
}
}
else
{
ProcessError(cSendCommand, "Send data to usb error and cannot re-read the data from usb error!" + GetUSBStatus());
return(CommunicationState.CommSendError);; //send data error.
}
}
else
{
if (nTotalDataLength <= 0)
{
ProcessError(cSendCommand, "Send data to usb error,the send byte is zero!" + GetUSBStatus());
return(CommunicationState.CommSendError);; //send data error.
}
// 在log里记录发送的命令
if (IsCommandNeedRecordLog(cDecodeCommand))
{
RecordCommandLog(bBuf, bBuf.Length, true);
}
}
}
catch (System.Exception ex)
{
return(CommunicationState.CommSendError);
}
Thread.Sleep(_delayms);
int nTimes = 0;
ReadAsysnchonous();
//while (readDataSynchronous2(cSendCommand, out nLen))
//{
// // 在log里记录接收的命令
// if (IsCommandNeedRecordLog(cDecodeCommand))
// {
// RecordCommandLog(_receiveBuf, nLen, false);
// }
// bBuf = BitConverter.GetBytes(nLen);
// Array.Copy(bBuf, 0, _receiveBuf, _receiveBuf.Length - 5, 4);//write data length at end
// cDecodeCommand.decode(_receiveBuf);
// if (cDecodeCommand.ErrorCode == (ushort)ReturnCode.CommandDecodeError)
// {
// nTimes++;
// }
// else if (cDecodeCommand.ErrorCode == (ushort)ReturnCode.CommandReceivedError)
// {
// return CommunicationState.CommReceivedError;
// }
// else if (cDecodeCommand.ErrorCode == (ushort)ReturnCode.CommandReject)
// {
// return CommunicationState.CommReject;
// }
// else
// {
// return CommunicationState.CommOK;
// }
// if (nTimes >= 9)
// {
// ProcessError(cDecodeCommand, "This command decode error,and it have re-try 9 times read,and it also error !");
// return CommunicationState.CommDecodeError;
// }
// Thread.Sleep(_delayms);
//}
}
return(CommunicationState.CommTimeOut);
}