async Task TestDirection(Logger logger, double[] vectorFromThisToDestination, int iteration = 0)
{
// are all vectors along directionVector?
bool neighbor_along_destinationVector_exists = false;
foreach (var neighbor in ConnectedNeighborsCanBeUsedForNewRequests)
{
var thisRegIdVector = RegistrationIdDistance.GetVectorValues(CryptoLibrary, this.Configuration.LocalPeerRegistrationId, vectorFromThisToDestination.Length);
var neighborRegIdVector = RegistrationIdDistance.GetVectorValues(CryptoLibrary, neighbor.RemoteRegistrationId, vectorFromThisToDestination.Length);
var vectorFromLocalPeerToNeighbor = new double[thisRegIdVector.Length];
for (int i = 0; i < vectorFromLocalPeerToNeighbor.Length; i++)
{
vectorFromLocalPeerToNeighbor[i] = RegistrationIdDistance.GetDifferenceInLoopedRegistrationIdSpace(thisRegIdVector[i], neighborRegIdVector[i]);
}
double multProduct = 0;
for (int dimensionI = 0; dimensionI < vectorFromThisToDestination.Length; dimensionI++)
{
multProduct += vectorFromLocalPeerToNeighbor[dimensionI] * vectorFromThisToDestination[dimensionI];
}
if (multProduct > 0)
{
neighbor_along_destinationVector_exists = true;
break;
}
}
if (neighbor_along_destinationVector_exists == false)
{
if (iteration < 8)
{
if (ConnectedNeighbors.Count < _configuration.AbsoluteMaxNumberOfNeighbors)
{
logger.WriteToLog_higherLevelDetail_EmitListOfPeers($"no neighbors to destination {MiscProcedures.VectorToString(vectorFromThisToDestination)}, sending REGISTER request... iteration={iteration}", this);
// try to fix the pain: connect to neighbors at empty direction
await ConnectToNewNeighborAsync(Engine.DateTimeNowUtc, true, vectorFromThisToDestination);
if (iteration >= 2)
{
await Engine.EngineThreadQueue.WaitAsync(TimeSpan.FromSeconds(10), "fixing empty direction 1237");
}
await TestDirection(logger, vectorFromThisToDestination, iteration + 1);
}
else
{
logger.WriteToLog_lightPain_EmitListOfPeers($"no neighbors to destination {MiscProcedures.VectorToString(vectorFromThisToDestination)} after {iteration} iterations. {ConnectedNeighbors.Count} connected neighbors already", this);
}
}
else
{ // pain is not fixed
logger.WriteToLog_lightPain_EmitListOfPeers($"no neighbors to destination {MiscProcedures.VectorToString(vectorFromThisToDestination)} after {iteration} iterations. {ConnectedNeighbors.Count} connected neighbors", this);
}
}
}
public static double[] GetDifferenceVector(RegistrationId from, RegistrationId to, ICryptoLibrary cryptoLibrary, int numberOfDimensions)
{
var fromRegIdVector = RegistrationIdDistance.GetVectorValues(cryptoLibrary, from, numberOfDimensions);
var destinationRegIdVector = RegistrationIdDistance.GetVectorValues(cryptoLibrary, to, numberOfDimensions);
var diff = new double[fromRegIdVector.Length];
for (int i = 0; i < diff.Length; i++)
{
diff[i] = RegistrationIdDistance.GetDifferenceInLoopedRegistrationIdSpace(fromRegIdVector[i], destinationRegIdVector[i]);
}
return(diff);
}