void OnReceived(object sender, ReceiveEventArgs data)
{
try
{
byte[] buff = (byte[])data.Data;
string str = Gurux.Common.GXCommon.ToHex(buff, true);
foreach (GXClient cl in Clients)
{
cl.NotifyVerbose(sender, Gurux.Common.TraceTypes.Received, str);
}
GXClient client = null;
lock (Clients.SyncRoot)
{
if (Clients.Count == 0)
{
return;
}
client = Clients[0] as GXClient;
}
GXReceiveDataEventArgs args = new GXReceiveDataEventArgs(buff, data.SenderInfo);
client.NotifyReceiveData(args);
//If data is not accepted ignore it.
if (!args.Accept)
{
if (this.m_Media.Trace >= System.Diagnostics.TraceLevel.Info)
{
client.NotifyVerbose(client, Resources.ClientToNotAcceptData + BitConverter.ToString(buff).Replace('-', ' '));
}
return;
}
int cnt = 0;
//Add received data to the buffer.
lock (m_syncRoot)
{
m_replyBuffer.AddRange(buff);
cnt = m_replyBuffer.Count;
}
while (cnt != 0)
{
m_ReplyPacket.ClearData();
m_ReplyPacket.Status = PacketStates.Ok;
//If end applications are parsing data itself.
if (m_bParseReceivedPacket)
{
GXParsePacketEventArgs e;
lock (m_syncRoot)
{
e = new GXParsePacketEventArgs(m_replyBuffer.ToArray(), m_ReplyPacket);
}
client.NotifyParsePacketFromData(e);
//If packet is not ready yet.
if (e.PacketSize == 0)
{
return;
}
//Remove parsed data.
lock (m_syncRoot)
{
m_replyBuffer.RemoveRange(0, e.PacketSize);
}
}
else
{
int start;
byte[] tmp;
int packetSize = 0;
lock (m_syncRoot)
{
tmp = m_replyBuffer.ToArray();
}
try
{
m_ReplyPacket.Sender = client;
m_ReplyPacket.ParsePacket(tmp, out start, out packetSize);
}
finally
{
m_ReplyPacket.Sender = null;
}
//If packet is not ready yet.
if (packetSize == 0)
{
return;
}
GXVerifyPacketEventArgs e = new GXVerifyPacketEventArgs(tmp, m_ReplyPacket);
client.NotifyVerifyPacket(e);
do
{
if (e.State == ParseStatus.CorruptData)
{
//Remove parsed data.
lock (m_syncRoot)
{
m_replyBuffer.Clear();
}
client.NotifyVerbose(client, Resources.CorruptedData);
Gurux.Common.GXCommon.TraceWriteLine(Resources.CorruptedData);
return;
}
else if (e.State == ParseStatus.Incomplete)
{
m_ReplyPacket.ParsePacket(tmp, out start, out packetSize);
e = new GXVerifyPacketEventArgs(tmp, m_ReplyPacket);
client.NotifyVerifyPacket(e);
}
}
while (e.State != ParseStatus.Complete);
//Remove parsed data.
lock (m_syncRoot)
{
m_replyBuffer.RemoveRange(0, packetSize);
}
}
lock (m_syncRoot)
{
cnt = m_replyBuffer.Count;
}
//Data parsing succeeded. Handle reply.
//Clear transaction time flag.
m_ReplyPacket.Status &= ~PacketStates.TransactionTimeReset;
bool acceptPacket = true;
GXPacket replyPacket = null;
lock (m_SendPackets.SyncRoot)
{
// Find the send packet from the send list
foreach (GXPacket it in m_SendPackets)
{
lock (it.SyncRoot)
{
//If packet is send as a broadcast message.
if (it.ResendCount == -1)
{
continue;
}
GXReplyPacketEventArgs e = new GXReplyPacketEventArgs(it, m_ReplyPacket);
try
{
client.NotifyIsReplyPacket(e);
}
catch (Exception ex)
{
it.Status = PacketStates.SendFailed;
it.SenderInfo = ex.Message;
acceptPacket = true;
replyPacket = it;
break;
}
acceptPacket = e.Accept;
if (!acceptPacket)
{
if (this.m_Media.Trace >= System.Diagnostics.TraceLevel.Info)
{
if (!string.IsNullOrEmpty(e.Description))
{
client.NotifyVerbose(client, e.Description);
}
else
{
client.NotifyVerbose(client, Resources.ReceivedPacketIsNotAccepted +
" " + m_ReplyPacket.ToString());
}
}
break;
}
//If the packet is old, don't do anything
if ((it.Status & PacketStates.Timeout) != 0)
{
continue;
}
//Mark the packet as received so the sender do not remove it.
it.Status = PacketStates.Received;
//Copy content if the received packet is a reply packet...
it.ClearData();
it.AppendData(m_ReplyPacket.ExtractData(typeof(byte[]), 0, -1));
it.Bop = m_ReplyPacket.Bop;
it.Eop = m_ReplyPacket.Eop;
it.ChecksumSettings.Copy(m_ReplyPacket.ChecksumSettings);
}
replyPacket = it;
}
}
if (acceptPacket)
{
///////////////////////////////////////////////////////////////
//If packet sender not found, send packet to all clients.
if (replyPacket == null)
{
GXReplyPacketEventArgs e;
lock (Handlers)
{
GXNotifyEventArgs fc = new GXNotifyEventArgs(m_ReplyPacket, data.SenderInfo);
foreach (var it in Handlers)
{
it.Key.NorifyEvent(fc);
if (fc.Handled)
{
if (fc.Client != null)
{
e = new GXReplyPacketEventArgs(null, m_ReplyPacket);
fc.Client.NotifyAcceptNotify(e);
if (!e.Accept)
{
return;
}
fc.Client.NotifyReceived(new GXReceivedPacketEventArgs(m_ReplyPacket, false));
}
m_ReplyPacket.ClearData();
if (fc.Reply != null)
{
Send(fc.Reply);
}
return;
}
}
}
e = new GXReplyPacketEventArgs(null, m_ReplyPacket);
client.NotifyAcceptNotify(e);
if (!e.Accept)
{
continue;
}
foreach (GXClient it in Clients)
{
it.NotifyReceived(new GXReceivedPacketEventArgs(m_ReplyPacket, false));
}
}
else //Sender found.
{
System.Diagnostics.Debug.Assert((replyPacket.Status & PacketStates.Sent) == 0);
AddPacketToReceivedBuffer(replyPacket);
}
}
}
}
catch (Exception Ex)
{
foreach (GXClient it in Clients)
{
it.NotifyError(m_ReplyPacket, Ex);
}
}
}
internal void NotifyReceiveData(GXReceiveDataEventArgs e)
{
if (PacketParser != null)
{
PacketParser.ReceiveData(this, e);
}
else if (OnReceiveData != null)
{
OnReceiveData(this, e);
}
}
/// <summary>
/// Skip alive messages.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void ReceiveData(object sender, GXReceiveDataEventArgs e)
{
string str = System.Text.ASCIIEncoding.ASCII.GetString(e.Data);
e.Accept = str != "<ALIVE>";
}
public void ReceiveData(object sender, GXReceiveDataEventArgs e)
{
}
void IGXPacketParser.ReceiveData(object sender, GXReceiveDataEventArgs e)
{
}