/// <summary>
/// 读取串口的数据
/// </summary>
/// <param name="send">发送的原始字节数据</param>
/// <returns>带接收字节的结果对象</returns>
public OperateResult <byte[]> ReadBase(byte[] send)
{
OperateResult <byte[]> result = null;
hybirdLock.Enter( );
try
{
isReceiveTimeout = false; // 是否接收超时的标志位
isReceiveComplete = false; // 是否接收完成的标志位
if (send == null)
{
send = new byte[0];
}
SP_ReadData.Write(send, 0, send.Length);
ThreadPool.QueueUserWorkItem(new WaitCallback(CheckReceiveTimeout), null);
resetEvent.WaitOne( );
isReceiveComplete = true;
if (isReceiveTimeout)
{
result = new OperateResult <byte[]>(StringResources.Language.ReceiveDataTimeout + ReceiveTimeout);
}
else
{
byte[] tmp = new byte[receiveCount];
Array.Copy(buffer, 0, tmp, 0, tmp.Length);
result = OperateResult.CreateSuccessResult(tmp);
}
}
catch (Exception ex)
{
logNet?.WriteException(ToString( ), ex);
result = new OperateResult <byte[]>( )
{
Message = ex.Message
};
}
finally
{
hybirdLock.Leave( );
}
receiveCount = 0;
return(result);
}
private bool disposedValue = false; // 要检测冗余调用
/// <summary>
/// 释放当前的对象
/// </summary>
/// <param name="disposing">是否在</param>
protected virtual void Dispose(bool disposing)
{
if (!disposedValue)
{
if (disposing)
{
// TODO: 释放托管状态(托管对象)。
hybirdLock?.Dispose( );
SP_ReadData?.Dispose( );
}
// TODO: 释放未托管的资源(未托管的对象)并在以下内容中替代终结器。
// TODO: 将大型字段设置为 null。
disposedValue = true;
}
}
/// <summary>
/// 重写的数据接收方法，需要连续接收，直到CRC校验成功或是超时，接收时间会比较久
/// </summary>
/// <param name="sender">串口对象</param>
/// <param name="e">串口的数据对象</param>
protected override void SP_ReadData_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
while (true)
{
Thread.Sleep(20);
if (SP_ReadData.BytesToRead < 1)
{
continue;
}
// 继续接收数据
receiveCount += SP_ReadData.Read(buffer, receiveCount, SP_ReadData.BytesToRead);
// CRC校验成功及退出
byte[] data = new byte[receiveCount];
Array.Copy(buffer, 0, data, 0, receiveCount);
if (SoftCRC16.CheckCRC16(data))
{
break;
}
}
resetEvent.Set( );
}
/// <summary>
/// 串口数据接收的回调方法
/// </summary>
/// <param name="sender">数据发送</param>
/// <param name="e">消息</param>
protected virtual void SP_ReadData_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
while (true)
{
Thread.Sleep(20);
try
{
if (SP_ReadData.BytesToRead < 1)
{
break;
}
// 继续接收数据
receiveCount += SP_ReadData.Read(buffer, receiveCount, SP_ReadData.BytesToRead);
}
catch (Exception ex)
{
isComError = true;
ComErrorMsg = ex.Message;
break;
}
}
resetEvent.Set( );
}
private void SP_ReadData_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
Thread.Sleep(20);
receiveCount = SP_ReadData.Read(buffer, 0, SP_ReadData.BytesToRead);
resetEvent.Set( );
}
