private TranMsg CombineMsg(TranMsgType type)
{
var queue = this._msgQueue[type];
TranMsg ms = TranMsg.Combine(queue.ToArray());
queue.Clear();
return(ms);
}
public TranMsg[] Splite(byte[] buff, int len)
{
TranMsg msg = new TranMsg();
msg.Data = new byte[len];
Array.Copy(buff, msg.Data, len);
msg.LoadSize = (ushort)len;
msg.PackageIndex = 0;
msg.PackageCount = 1;
msg.Type = TranMsgType.Dac;
return(new TranMsg[] { msg });
}
public void OnDataReceived(IDtuConnection c, DtuMsg msg)
{
if (msg == null)
{
Log.ErrorFormat("Received a null msg from {0}.", c);
return;
}
if (!msg.IsOK())
{
Log.DebugFormat("Invalid Msg, dropped.");
return;
}
TranMsg tm = new TranMsg(msg.Databuffer);
// Send ack.
TranMsg ack = new HeartBeatTranMsg(Convert.ToInt32(msg.DtuId), tm.LoadSize); // ACK
ack.ID = tm.ID; // SAME.
c.Asend(ack.Marshall());
if (TranMsgType.HeartBeat == tm.Type)
{
// HeartBeat.
Log.DebugFormat("heartBeat, send ack and continue");
return;
}
Log.DebugFormat("OnDataReceived: id={4},result={0}, len={1}, pkg={2}/{3}", msg.ErrorCode,
msg.Databuffer != null ? msg.Databuffer.Length : 0, tm.PackageIndex, tm.PackageCount, tm.ID);
if (!tm.IsLastPackage())
{
// 入列.
EnqueueMsg(tm);
return;
}
// 最后一包已到达, 或仅一包.
TranMsg outMsg = null;
if (tm.PackageCount > 1)
{
Log.DebugFormat("Last package, combine them.");
outMsg = CombineMsg(tm.Type); //组包
}
else
{
outMsg = tm; //单包.
}
// 委托调用.
if (OnTranMsgReceived != null)
{
OnTranMsgReceived(tm.Type, outMsg);
}
}
public bool SSend(TranMsg req, int timeout, out TranAckMsg resp)
{
DtuMsg msg = _dtuConnection.Ssend(req.Marshall(), timeout);
resp = new TranAckMsg();
if (msg.IsOK())
{
resp.Unmarshall(msg.Databuffer);
return(true);
}
else
{
resp.ErrorMsg = msg.ErrorMsg;
resp.ErrorCode = msg.ErrorCode;
return(false);
}
}
private void EnqueueMsg(TranMsg tm)
{
TranMsgType t = tm.Type;
Queue <TranMsg> queue = null;
if (!this._msgQueue.ContainsKey(t))
{
this._msgQueue[t] = queue = new Queue <TranMsg>();
}
else
{
queue = this._msgQueue[t];
if (tm.PackageIndex == 0 && queue.Count > 0)
{
Log.ErrorFormat("Invalid msg idx: {0}, purge old packages.", tm.PackageIndex);
queue.Clear();
}
}
queue.Enqueue(tm);
}
public TranMsg[] Splite(byte[] buff, int len)
{
int packCnt = (int)Math.Ceiling(len / (MAX_PACKAGE_SIZE * 1.0));
IList <TranMsg> msgs = new List <TranMsg>();
int restSize = len;
for (int i = 0; i < packCnt; i++)
{
int pLen = (i == packCnt - 1) ? restSize : MAX_PACKAGE_SIZE;
TranMsg msg = new TranMsg();
msg.Data = new byte[pLen];
Array.Copy(buff, i * 1014, msg.Data, 0, pLen);
msg.LoadSize = (ushort)pLen;
msg.PackageIndex = (byte)i;
msg.PackageCount = (byte)packCnt;
msg.Type = TranMsgType.Dac;
msgs.Add(msg);
restSize -= pLen;
}
return(msgs.ToArray());
}
public static TranMsg Combine(TranMsg[] msgs)
{
TranMsg msg = new TranMsg();
int len = 0;
foreach (TranMsg tm in msgs)
{
len += tm.LoadSize;
}
msg.Data = new byte[len];
msg.PackageIndex = 0;
msg.PackageCount = 1;
msg.LoadSize = (ushort)len;
int offset = 0;
foreach (TranMsg tm in msgs)
{
Array.Copy(tm.Data, 0, msg.Data, offset, tm.LoadSize);
offset += tm.LoadSize;
}
return(msg);
}
private void _run()
{
while (!_source.IsCancellationRequested)
{
if (!this._delegator.IsConnected())
{
Log.InfoFormat("Reconnecting to delegate");
this._delegator.Connect();
Thread.Sleep(200);
if (!this._delegator.IsConnected())
{
Log.InfoFormat("Connecting error, retry after 1 second.");
Thread.Sleep(1000);
continue;
}
else
{
Log.InfoFormat("Connected.");
}
}
foreach (ITranDataProvider _provider in _providers)
{
if (_source.IsCancellationRequested)
{
break;
}
if (_provider.HasMoreData()) //未发送完毕
{
if (_source.IsCancellationRequested)
{
break;
}
int len = 0;
TranMsg[] msgs = _provider.NextPackages(out len);
int sendingIdx = 0;
bool allMsgSent = false;
long started = System.DateTime.Now.Ticks;
while (sendingIdx < msgs.Length) // 循环发送
{
if (_source.IsCancellationRequested)
{
break;
}
TranMsg m = msgs[sendingIdx];
Log.DebugFormat("Sending package: {0}: {1}/{2}, len={3}", m.ID, sendingIdx, msgs.Length, m.LoadSize);
try
{
TranAckMsg ack;
if (_delegator.SSend(m, DTU_SEND_TIMEOUT, out ack))
{
if (!IsValidAck(m, ack))
{
{
Log.ErrorFormat("Sent failed, ack error, {0}!={1}", m.LoadSize, ack.Received);
continue; // resent it.
}
}
sendingIdx++; //发送成功.
if (OnMessageSent != null)
{
OnMessageSent.Invoke(m, ack); //异步
}
allMsgSent = sendingIdx == msgs.Length;
Thread.Sleep(100);
}
else
{
Log.ErrorFormat("Sending error: {0}, retry after 2 second: ", ack.ErrorMsg);
Thread.Sleep(1000);
}
}
catch (Exception e)
{
Log.ErrorFormat("Sending exception: {0}: ", e.Message);
Thread.Sleep(1000);
}
}
if (allMsgSent)
{
Log.DebugFormat("Package Group sent in {0} seconds.",
(System.DateTime.Now.Ticks - started) / 10000);
_provider.OnPackageSent();
}
Thread.Sleep(10);
}
else
{
Log.InfoFormat("No more data. wait {0} seconds.", NO_DATA_WAIT_SECONDS);
Thread.Sleep(NO_DATA_WAIT_SECONDS * 1000);
}
}
}
}
private bool IsValidAck(TranMsg req, TranAckMsg resp)
{
return(resp.Received == req.LoadSize || resp.ID != req.ID);
}