/// <summary>
/// 分发响应
/// </summary>
/// <param name="cmdId">响应报文命令ID</param>
/// <param name="payload">响应负载</param>
/// <param name="length">响应负载长度</param>
private void dispatchResponse(enCmd cmdId, byte[] payload, byte length)
{
eRC rc = (eRC)payload[0];
m_u8RxDataLen = (byte)(length - 1);
Array.Copy(payload, 1, m_u8aRxData, 0, m_u8RxDataLen);
// 检查接收到的命令id是否与请求的id相同
if (cmdId == m_ReqCmdId)
{
if (m_evReplyArrived != null)
{
// call the callback
m_evReplyArrived(cmdId, rc, m_u8aRxData, m_u8RxDataLen);
// reset
m_ReqCmdId = enCmd.CMDID_END;
// Kous: 注销事件处理函数的方式可能存在问题
m_evReplyArrived = null;
// Kous: 清空接收数据缓存
Array.Clear(m_u8aRxData, 0, m_u8RxDataLen);
m_u8RxDataLen = 0;
}
else
{
CommStackLog.RecordErr(enLogLayer.eSerial, "m_evReplyArrived=null");
}
}
else
{
CommStackLog.RecordErr(enLogLayer.eSerial, "cmdId=" + cmdId.ToString() + " m_ReqCmdId=" + m_ReqCmdId.ToString());
}
}
/// <summary>
/// 发送请求去报文
/// </summary>
/// <param name="cmdId">输出报文的命令ID</param>
/// <param name="isAck">输出报文是否为响应报文</param>
/// <param name="shouldBeAcked">输出报文是否需要响应</param>
/// <param name="payload">输出报文的负载</param>
/// <param name="length">输出报文的负载长度</param>
/// <param name="replyCb">响应回调函数</param>
/// <param name="bRetry">是否为重发报文</param>
/// <returns>错误码</returns>
private enErrCode sendRequestNoCheck(enCmd cmdId,
bool isAck,
bool shouldBeAcked,
byte[] payload,
byte length,
DlgtReply replyCb,
bool bRetry = false)
{
byte control = 0;
// register reply callback
m_ReqCmdId = cmdId;
m_evReplyArrived = replyCb;
// create the control byte
if (isAck)
{
control |= FLAG_ACK;
}
else
{
control |= FLAG_DATA;
}
if (shouldBeAcked)
{
control |= FLAG_ACKNOWLEDGED;
}
else
{
control |= FLAG_UNACKNOWLEDGED;
}
lock (m_hdlcore)
{
// send the frame over serial
if (bRetry)
{
m_u8TxPacketId--;
}
if (!output1Frame(control, (byte)cmdId, m_u8TxPacketId, length, payload))
{
return(enErrCode.ERR_INVALID_PARAM);
}
// increment the txPacketId
m_u8TxPacketId++;
}
return(enErrCode.ERR_NONE);
}
/// <summary>
/// 发送请求去报文
/// </summary>
/// <param name="cmdId">输出报文的命令ID</param>
/// <param name="isAck">输出报文是否为响应报文</param>
/// <param name="payload">输出报文的负载</param>
/// <param name="length">输出报文的负载长度</param>
/// <param name="replyCb">响应回调函数</param>
/// <param name="bRetry">是否为重发报文</param>
/// <returns>错误码</returns>
public enErrCode SendRequest(enCmd cmdId,
bool isAck,
byte[] payload,
byte length,
DlgtReply replyCb,
bool bRetry = false)
{
// abort if not connected
if (m_SerStatus != enSerStatus.SER_ST_CONNECTED)
{
return(enErrCode.ERR_NOT_CONNECTED);
}
// send the request
return(sendRequestNoCheck(cmdId, isAck, !isAck, payload, length, replyCb, bRetry));
}
