//------------------------------------------------------------------------------------------------------------------------
private void RemoteNode_OnChannelClose(RemoteNode RemoteNode)
{
if (!RemoteNode.IsConnected)
{
BrotherNodes.Remove(RemoteNode.RemoteNodeKey);
}
}
private void _channelDisconnected(ButtonConnectionChannel channel)
{
var bdAddr = channel.BdAddr;
DebugEx.TraceLog(channel.ToString() + " disconnected");
ButtonChannels.Remove(bdAddr);
}
//------------------------------------------------------------------------------------------------------------------------
void CleanUp()
{
foreach (var entry in DiscoveredEndpoints)
{
if ((DateTime.Now - entry.Value.LastMessageTimestamp) > EndpointTimeout)
{
DiscoveredEndpoints.Remove(entry.Key);
OnEndpointTimeout?.Invoke(entry.Value);
}
}
}
//------------------------------------------------------------------------------------------------------------------------
private void Discoverer_OnEndpointTimeout(LANDiscoverer.RemoteEndpointInfo endpoint)
{
try
{
var remInfo = RemoteNodes.TryGetOrDefault(endpoint.ID);
if (remInfo != null)
{
remInfo._disconnect();
RemoteNodes.Remove(endpoint.ID);
}
}
catch (Exception ex) { DebugEx.TraceError(ex, "Discoverer_OnEndpointTimeout error"); }
}
//------------------------------------------------------------------------------------------------------------------------
public object GetSingleValue <Req>(Req data)
{
var syncid = GetNewSyncId();
var w = new Waiter();
lock (PendingRequests)
PendingRequests.Add(syncid, w);
//construct sharppy msg
SharpPy msg = new SharpPy()
{
isRequest = true,
watcherid = WatcherId,
syncid = syncid,
pin = this.sensor.Pin.ToString(),
operation = (data as SharpPy).operation,
payload = (data as SharpPy).payload,
};
lock (w)
{
this.sharppyiface.Send2python(msg);
Monitor.Wait(w);
}
lock (PendingRequests)
PendingRequests.Remove(syncid);
if (w.response != null)
{
if (w.response != prevData && w.response != "255" && w.response != "65535")
{
prevData = w.response;
DebugEx.TraceLog("CONT: wId:" + WatcherId + " sId:" + syncid + " response:" + w.response);
return(this.sensor.DeserializePayload(w.response));
}
//else
// DebugEx.TraceLog("DROP: wId:" + WatcherId + " sId:" + syncid + " response:" + w.response);
}
return(null);
}
//------------------------------------------------------------------------------------------------------------------------
public GenericRsp HandleGraphDeploymentReq(GraphDeploymentReq req, bool SupressSave)
{
lock (locker)
{
var res = new GenericRsp();
try
{
//get graphkey
var graphkey = (GraphKey)req.GraphKey;
if (graphkey.IsInvalid)
{
res.IsSuccess = false;
res.Message = "Invalid GraphKey";
return(res);
}
if (graphkey.NodeId != this.Node.NodeKey.NodeID)
{
res.IsSuccess = false;
res.Message = "Invalid NodeID in GraphKey";
return(res);
}
//collect sets
var sets = Node.BeginActiveThingsUpdate();
//deploy or undeploy?
if (req.IsDeployed)
{
//deserialize graph descriptor
GraphDescriptor graphDescriptor;
try { graphDescriptor = GraphBuilder.GetGraphDescriptorFromJson(req.GraphDescriptor, false); }
catch (Exception ex)
{
DebugEx.Assert(ex, "Could not deserialize graph descriptor");
res.IsSuccess = false;
res.Message = "Could not deserialize graph descriptor";
return(res);
}
graphDescriptor.GraphKey = graphkey;
//Build Graph
Graph graph;
try { graph = BuildGraph(graphDescriptor); }
catch (Exception ex)
{
DebugEx.Assert(ex, "Could not build graph from graph descriptor (unhandled exception)");
res.IsSuccess = false;
res.Message = "Could not build graph from graph descriptor (unhandled exception)";
return(res);
}
if (graph == null)
{
DebugEx.Assert("Could not build graph from graph descriptor");
res.IsSuccess = false;
res.Message = "Could not build graph from graph descriptor";
return(res);
}
//set key
graph.GraphKey = graphkey;
//do i already have it?
if (Graphs.ContainsKey(graphkey))
{
//invalidate graph
_GraphManager.InvalidateGraph(graphkey);
//remove information
Graphs.Remove(graphkey);
}
//try deploy graph
try
{
Exception exception;
var depres = graph.OnDeploy(true, null, out exception);
if (!depres)
{
res.IsSuccess = false;
res.Message = "Graph OnDeploy() failed. Message : " + (exception?.Message ?? "null");
return(res);
}
}
catch (Exception ex)
{
DebugEx.Assert(ex, "Graph OnDeploy() failed");
res.IsSuccess = false;
res.Message = "Graph OnDeploy() failed. Message : " + ex.Message;
return(res);
}
//add to lookup
var gi = new GraphInfo()
{
GraphKey = graphkey,
GraphDescriptor = graphDescriptor,
GraphDescriptorString = req.GraphDescriptor,
Graph = graph,
};
Graphs.Add(graphkey, gi);
//save!
if (IsInitialized && !SupressSave)
{
Save();
}
//associate block keys
foreach (var thingblock in graph.Blocks.OfType <BaseThings>())
{
//Add to Thing2Block set
{
//find block key set
var set = ThingKey2BlockKey.TryGetOrDefault(thingblock.ThingKey);
if (set == null)
{
set = new HashSetTS <BlockKey>();
ThingKey2BlockKey.Add(thingblock.ThingKey, set);
}
//add to loockup set
set.Add(thingblock.BlockKey);
}
//Add only for thingIn
if (thingblock.IsThingIn)
{
//find block key set
var set = ThingKey2ThingInBlockKey.TryGetOrDefault(thingblock.ThingKey);
if (set == null)
{
set = new HashSetTS <BlockKey>();
ThingKey2ThingInBlockKey.Add(thingblock.ThingKey, set);
}
//add to loockup set
set.Add(thingblock.BlockKey);
}
}
//Handle Deploy
res.IsSuccess = true;
res.Message = "Graph Deployed Successfully";
}
else
{
//Handle UnDeploy
if (Graphs.ContainsKey(graphkey) == false)
{
res.IsSuccess = true;
res.Message = "Graph Undeployed Successfully (was not deployed)";
}
else
{
//get graph
var gi = Graphs[graphkey];
var graph = gi.Graph;
//inform graph
Exception exception;
try
{
if (graph.OnUndeploy(null, out exception) == false)
{
DebugEx.Assert(exception, "Graph OnUndeploy failed");
}
}
catch (Exception ex) { DebugEx.Assert(ex, "Graph OnUndeploy failed"); }
//invalidate graph
_GraphManager.InvalidateGraph(graphkey);
//remove information
Graphs.Remove(graphkey);
//save!
if (IsInitialized && !SupressSave)
{
Save();
}
//disassociate block keys
if (graph != null)
{
foreach (var thingblock in gi.Graph.Blocks.OfType <BaseThings>())
{
//remove from thing2block
{
var set = ThingKey2BlockKey.TryGetOrDefault(thingblock.ThingKey);
if (set != null)
{
set.Remove(thingblock.BlockKey);
}
}
//remove from thignIn2block
if (thingblock.IsThingIn)
{
var set = ThingKey2ThingInBlockKey.TryGetOrDefault(thingblock.ThingKey);
if (set != null)
{
set.Remove(thingblock.BlockKey);
}
}
}
}
//done
res.IsSuccess = true;
res.Message = "Graph Undeployed Successfully";
}
}
//finish update
Node.EndActiveThingsUpdate(sets);
}
catch (Exception ex)
{
res.IsSuccess = false;
res.Message = "Unhandled exception in GraphDeploymentReq(). Message=" + ex.Message;
}
finally
{
//begin activation state snapshot
var sets = Node.BeginActiveThingsUpdate();
//update active ports/things
var activeThings = ThingKey2BlockKey.Where(kv => kv.Value.Count > 0)
.Select(kv => Node.Things.TryGetOrDefaultReadOnly(kv.Key))
.WhereNotNull().ToHashSetTS();
var activeThingKeys = activeThings.Select(t => (ThingKey)t.ThingKey).ToHashSetTS();
var activePorts = activeThings.SelectMany(t => t.Ports).ToHashSetTS();
var activePortsKeys = activePorts.Select(p => (PortKey)p.PortKey).ToHashSetTS();
//update sets
Interlocked.Exchange(ref _ActiveThings, activeThings);
Interlocked.Exchange(ref _ActivePorts, activePorts);
Interlocked.Exchange(ref _ActiveThingKeys, activeThingKeys);
Interlocked.Exchange(ref _ActivePortKeys, activePortsKeys);
//trigger node thing activation update
Node.EndActiveThingsUpdate(sets);
}
//return result msg
return(res);
}
}
//------------------------------------------------------------------------------------------------------------------------
void HandleNewConnection(Socket newsocket)
{
try
{
#region check reconnection throttle
try
{
//setup socket
newsocket.ReceiveTimeout = -1;
newsocket.SendTimeout = 60 * 1000;
#if NETFX
var re = newsocket.RemoteEndPoint.GetIPAddress().ToStringInvariant();
#elif UNIVERSAL
var re = newsocket.Information.RemoteAddress.ToStringInvariant();
#endif
//filtering
if (OnNewSocketConnectionFilter != null && OnNewSocketConnectionFilter(this, re) == false)
{
#if NETFX
try { newsocket.Close(); } catch { }
#endif
try { newsocket.Dispose(); } catch { }
DebugEx.TraceWarning("Connection from " + re + " closed from filter");
return;
}
if (IsReconnectionThrottleEnabled && re != "127.0.0.1" && re != "localhost") //no reconnection throttle for localhost connections
{
var rbe = reconnectThrottleBookKeeper.TryGetOrDefault(re);
if (rbe == null)
{
rbe = new ReconnectionBookkeepEntry()
{
ConnectionTimestamp = DateTime.Now + TimeSpan.FromMilliseconds(100),
Connections = 1,
};
reconnectThrottleBookKeeper.ForceAdd(re, rbe);
}
else
{
if (++rbe.Connections > ReconnectionThrottleAfterConnectionCount)
{
var elapsed = DateTime.Now - rbe.ConnectionTimestamp;
if (elapsed < ReconnectionThrottleTimeout)
{
#if NETFX
try { newsocket.Close(); } catch { }
#endif
try { newsocket.Dispose(); } catch { }
DebugEx.TraceWarning("Connection from " + re + " closed due to reconnection throttle (" + elapsed.Seconds + " sec)");
return;
}
}
}
}
}
catch (Exception ex) { DebugEx.TraceWarning(ex, "YPServer Reconnection throttle exception"); }
//cleanup old entries
reconnectThrottleBookKeeper.RemoveWhere(e => DateTime.Now - e.Value.ConnectionTimestamp > ReconnectionThrottleTimeout);
#endregion
//start task new connection
Task.Run(() =>
{
ServerChannel channel = null;
string channelKey = null;
Thread.Sleep(MathTools.GetRandomNumber(1, 100));
try
{
//check
#if NETFX
if (!newsocket.Connected)
{
DebugEx.TraceWarning("YPServer newsocket not connected?");
try { newsocket.Close(); } catch { }
return;
}
#endif
//create channel
var con = ChannelConstructor;
channel = con == null ? new ServerChannel(this, Protocols, SupportedChannelSerializationModes, PreferredChannelSerializationModes, newsocket) : con(Protocols, newsocket);
if (channel == null)
{
DebugEx.Assert("Could not create channel");
#if NETFX
try { newsocket.Close(); } catch { }
#endif
try { newsocket.Dispose(); } catch { }
return;
}
//add to set
lock (_Channels)
{
//generate unique key
while (IssuedKeys.ContainsKey(channelKey = MathTools.GenerateRandomAlphaNumericString(64)))
{
;
}
//set on channel
channel._ChannelKey = channelKey;
//add to lookups
_Channels.Add(channel);
IssuedKeys.Add(channelKey, channel);
}
//start task timeout monitor
bool setupFinished = false;
Task.Run(() =>
{
try
{
//wait
Thread.Sleep(30000);
//check
if (!setupFinished)
{
DebugEx.TraceLog($"ServerChannel setup timeout ({channel})");
try { channel.Close("ServerChannel setup timeout"); } catch { }
#if NETFX
try { newsocket?.Close(); } catch { }
#endif
try { newsocket?.Dispose(); } catch { }
//remove from lookups
lock (_Channels)
{
if (channel != null)
{
_Channels.Remove(channel);
}
if (channelKey != null)
{
IssuedKeys.Remove(channelKey);
}
}
return;
}
}
catch (Exception ex)
{
DebugEx.Assert(ex, $"Unhandled exception ({channel})");
#if NETFX
try { newsocket?.Close(); } catch { }
#endif
try { newsocket?.Dispose(); } catch { }
//remove from lookups
lock (_Channels)
{
if (channel != null)
{
_Channels.Remove(channel);
}
if (channelKey != null)
{
IssuedKeys.Remove(channelKey);
}
}
return;
}
});
//set serializer
channel.MsgPack = MsgPackSerializer;
//setup channel socket
if (channel.SetupServerSocket() == false)
{
#if NETFX
try { newsocket?.Close(); } catch { }
#endif
try { newsocket?.Dispose(); } catch { }
//remove from lookups
lock (_Channels)
{
if (channel != null)
{
_Channels.Remove(channel);
}
if (channelKey != null)
{
IssuedKeys.Remove(channelKey);
}
}
return;
}
//mark setup finish
setupFinished = true;
//call event
OnNewChannel?.Invoke(this, channel);
//start heartbeat
channel.Start();
}
catch (Exception ex)
{
DebugEx.Assert(ex, "YPServer: Failed setting up new connection for " + channel);
#if NETFX
try { newsocket.Close(); } catch { }
#endif
try { newsocket.Dispose(); } catch { }
//remove from lookups
lock (_Channels)
{
if (channel != null)
{
_Channels.Remove(channel);
}
if (channelKey != null)
{
IssuedKeys.Remove(channelKey);
}
}
return;
}
});
}
catch (Exception ex)
{
DebugEx.Assert(ex, "YPChannel server setup new connection error");
}
}