internal virtual void Disconnect( )
{
if (Disposed)
{
return;
}
if (ioc != null)
{
ioc.RemoveChannel(this);
}
lock ( ConnectionLock )
{
if (Status != ChannelStatus.CONNECTED)
{
return;
}
Status = ChannelStatus.DISCONNECTED;
StartSearchTime = DateTime.Now;
ioc = null;
SID = 0;
if (PrivMonitorChanged != null)
{
AfterConnect(
action => {
if (MonitoredType == null)
{
return;
}
DataPacket p = DataPacket.Create(
16 + 16
);
p.Command = (ushort)CommandID.CA_PROTO_EVENT_ADD;
p.DataType = (ushort)TypeHandling.Lookup[MonitoredType];
p.DataCount = ChannelDataCount;
p.Parameter1 = SID;
p.Parameter2 = CID;
p.SetUInt16(
12 + 16,
(ushort)MonitorMask
);
if (ioc != null)
{
ioc.Send(p);
}
else
{
Disconnect();
}
}
);
}
}
}
public override void ProcessData(DataPacket packet)
{
lock (lockObject)
{
switch ((CommandID)packet.Command)
{
case CommandID.CA_PROTO_VERSION:
break;
case CommandID.CA_PROTO_ECHO:
// We sent the echo... we should therefore avoid to answer it
if (Pipe.GeneratedEcho)
{
Pipe.GeneratedEcho = false;
}
else
{
// Send back the echo
(
(ClientTcpReceiver)Pipe[0]
).Send(packet);
}
break;
case CommandID.CA_PROTO_SEARCH:
{
int port = packet.DataType;
// Console.WriteLine("Answer from: " + packet.Sender.Address + ":" + port) ;
Channel channel = Client.GetChannelByCid(packet.Parameter2);
if (channel == null)
{
return;
}
IPAddress addr = packet.Sender.Address;
if (packet.Parameter1 != 0xFFFFFFFF)
{
addr = IPAddress.Parse(
"" + packet.Data[8] + "." + packet.Data[8 + 1] + "." + packet.Data[8 + 2] + "." + packet.Data[8 + 3]
);
}
channel.SearchAnswerFrom = packet.Sender.Address;
if (Client.Configuration.DebugTiming)
{
lock (channel.ElapsedTimings)
{
if (!channel.ElapsedTimings.ContainsKey("SearchResponse"))
{
channel.ElapsedTimings.Add(
"SearchResponse",
channel.Stopwatch.Elapsed
);
}
}
}
if (channel != null)
{
try
{
channel.SetIoc(
Client.GetIocConnection(
new IPEndPoint(
addr,
port
)
)
);
}
catch (Exception)
{
}
}
}
break;
case CommandID.CA_PROTO_ACCESS_RIGHTS:
{
Channel channel = Client.GetChannelByCid(packet.Parameter1);
if (channel != null)
{
channel.AccessRight = (AccessRights)(
(ushort)packet.Parameter2
);
}
break;
}
case CommandID.CA_PROTO_CREATE_CHAN:
{
Channel channel = Client.GetChannelByCid(packet.Parameter1);
if (channel != null)
{
channel.SetServerChannel(
packet.Parameter2,
(EpicsType)packet.DataType,
packet.DataCount
);
}
break;
}
case CommandID.CA_PROTO_READ_NOTIFY:
{
ClientTcpReceiver ioc = (ClientTcpReceiver)Pipe[0];
Channel channel;
lock (ioc.PendingIo)
{
channel = ioc.PendingIo[packet.Parameter2];
}
if (channel != null)
{
channel.SetGetRawValue(packet);
}
break;
}
case CommandID.CA_PROTO_WRITE_NOTIFY:
{
ClientTcpReceiver ioc = (ClientTcpReceiver)Pipe[0];
Channel channel;
lock (ioc.PendingIo)
{
channel = ioc.PendingIo[packet.Parameter2];
}
if (channel != null)
{
channel.SetWriteNotify();
}
break;
}
case CommandID.CA_PROTO_EVENT_ADD:
{
Channel channel = Client.GetChannelByCid(packet.Parameter2);
if (channel != null)
{
channel.UpdateMonitor(packet);
}
break;
}
case CommandID.CA_PROTO_SERVER_DISCONN:
{
List <Channel> connectedChannels;
ClientTcpReceiver receiver = (
(ClientTcpReceiver)Pipe[0]
);
lock (receiver.ConnectedChannels)
{
connectedChannels = receiver.ConnectedChannels.Where(
row => row.CID == packet.Parameter1
).ToList();
}
foreach (Channel channel in connectedChannels)
{
lock (receiver.ChannelSID)
{
receiver.ChannelSID.Remove(channel.ChannelName);
}
channel.Disconnect();
}
}
break;
default:
break;
}
}
}
internal void SetIoc(DataPipe pipe)
{
ClientTcpReceiver tcpReceiver = (ClientTcpReceiver)pipe[0];
tcpReceiver.AddChannel(this);
lock ( ConnectionLock )
{
if (!Client.Searcher.Contains(this))
{
return;
}
Client.Searcher.Remove(this);
SID = 0;
ioc = tcpReceiver;
lock (ioc.ChannelSID)
{
// Console.WriteLine(ioc.ChannelSID.Count) ;
// Channel already known
if (ioc.ChannelSID.ContainsKey(ChannelName))
{
SID = ioc.ChannelSID[ChannelName];
// Console.WriteLine("Here") ;
Channel chan = ioc.ConnectedChannels.FirstOrDefault(
row =>
row.ChannelName == ChannelName &&
row.ChannelDataCount != 0
);
if (chan != null)
{
this.ChannelDataCount = chan.ChannelDataCount;
this.channelDefinedType = chan.channelDefinedType;
this.ChannelDataCount = chan.ChannelDataCount;
this.channelDefinedType = chan.ChannelDefinedType;
Status = ChannelStatus.CONNECTED;
ConnectionEvent.Set();
}
}
}
}
if (SID != 0)
{
// Console.WriteLine("SID " + SID + " STATUS CHANGED") ;
StatusChanged?.Invoke(this, Status);
return;
}
if (Client.Configuration.DebugTiming)
{
lock ( ElapsedTimings )
{
if (!ElapsedTimings.ContainsKey("IocConnection"))
{
ElapsedTimings.Add(
"IocConnection",
Stopwatch.Elapsed
);
}
}
}
// We need to create the channel
int padding;
if (ChannelName.Length % 8 == 0)
{
padding = 8;
}
else
{
padding = (
8
- (ChannelName.Length % 8)
);
}
DataPacket packet = DataPacket.Create(
16 + ChannelName.Length + padding
);
packet.Command = (ushort)CommandID.CA_PROTO_CREATE_CHAN;
packet.DataType = 0;
packet.DataCount = 0;
packet.Parameter1 = cid;
packet.Parameter2 = (uint)CAConstants.CA_MINOR_PROTOCOL_REVISION;
packet.SetDataAsString(ChannelName);
if (ioc != null)
{
ioc.Send(packet);
}
else
{
Disconnect();
return;
}
lock ( ElapsedTimings )
{
if (!ElapsedTimings.ContainsKey("SendCreateChannel"))
{
ElapsedTimings.Add(
"SendCreateChannel",
Stopwatch.Elapsed
);
}
}
}
