/// <summary>
/// Returns the averaged value of CurrentNetworkLoadIncoming, as a value between 0 and 1, for a time window of up to 254 seconds.
/// Triggers load analysis upon first call.
/// </summary>
/// <param name="secondsToAverage">Number of seconds over which historical data should be used to arrive at an average</param>
/// <returns>Average network load as a double between 0 and 1</returns>
public static double AverageNetworkLoadOutgoing(byte secondsToAverage)
{
#if !WINDOWS_PHONE && !ANDROID && !NETFX_CORE
if (!NetworkComms.commsShutdown && NetworkLoadThread == null)
{
lock (NetworkComms.globalDictAndDelegateLocker)
{
if (!NetworkComms.commsShutdown && NetworkLoadThread == null)
{
currentNetworkLoadValuesIncoming = new CommsMath();
currentNetworkLoadValuesOutgoing = new CommsMath();
NetworkLoadThread = new Thread(NetworkLoadWorker);
NetworkLoadThread.Name = "NetworkLoadThread";
NetworkLoadThread.IsBackground = true;
NetworkLoadThread.Start();
}
}
}
return(currentNetworkLoadValuesOutgoing.CalculateMean((int)((secondsToAverage * 1000.0) / NetworkLoadUpdateWindowMS)));
#else
throw new NotSupportedException("This feature is not supported on the current platform.");
#endif
}
/// <summary>
/// Return the standard deviation of the current list.
/// </summary>
/// <param name="lastNValues">If less than the number of items in the value list returns the mean of the lastNValues</param>
/// <returns>The mean of relevant values</returns>
public double CalculateStdDeviation(int lastNValues)
{
lock (locker)
{
int itemsToSkip = 0;
if (lastNValues < values.Count)
{
itemsToSkip = values.Count - lastNValues;
}
List <double> itemsForCalc = new List <double>(lastNValues);
List <double> itemWeights = new List <double>(lastNValues);
for (int i = itemsToSkip; i < values.Count; ++i)
{
itemsForCalc.Add(values[i]);
itemWeights.Add(weights[i]);
}
return(CommsMath.CalculateStdDeviation(itemsForCalc, itemWeights));
}
}
/// <summary>
/// Create a new connection object
/// </summary>
/// <param name="connectionInfo">ConnectionInfo corresponding to the new connection</param>
/// <param name="defaultSendReceiveOptions">The SendReceiveOptions which should be used as connection defaults</param>
protected Connection(ConnectionInfo connectionInfo, SendReceiveOptions defaultSendReceiveOptions)
{
//If the application layer protocol is disabled the serialiser must be NullSerializer
//and no data processors are allowed.
if (connectionInfo.ApplicationLayerProtocol == ApplicationLayerProtocolStatus.Disabled)
{
if (defaultSendReceiveOptions.Options.ContainsKey("ReceiveConfirmationRequired"))
throw new ArgumentException("Attempted to create an unmanaged connection when the provided send receive" +
" options specified the ReceiveConfirmationRequired option. Please provide compatible send receive options in order to successfully" +
" instantiate this unmanaged connection.", "defaultSendReceiveOptions");
if (defaultSendReceiveOptions.DataSerializer != DPSManager.GetDataSerializer<NullSerializer>())
throw new ArgumentException("Attempted to create an unmanaged connection when the provided send receive" +
" options serialiser was not NullSerializer. Please provide compatible send receive options in order to successfully" +
" instantiate this unmanaged connection.", "defaultSendReceiveOptions");
if (defaultSendReceiveOptions.DataProcessors.Count > 0)
throw new ArgumentException("Attempted to create an unmanaged connection when the provided send receive" +
" options contains data processors. Data processors may not be used with unmanaged connections." +
" Please provide compatible send receive options in order to successfully instantiate this unmanaged connection.", "defaultSendReceiveOptions");
}
SendTimesMSPerKBCache = new CommsMath();
packetBuilder = new PacketBuilder();
//Initialise the sequence counter using the global value
//Subsequent values on this connection are guaranteed to be sequential
packetSequenceCounter = Interlocked.Increment(ref NetworkComms.totalPacketSendCount);
ConnectionInfo = connectionInfo;
if (defaultSendReceiveOptions != null)
ConnectionDefaultSendReceiveOptions = defaultSendReceiveOptions;
else
ConnectionDefaultSendReceiveOptions = NetworkComms.DefaultSendReceiveOptions;
//Add any listener specific packet handlers if required
if (connectionInfo.ConnectionListener != null)
connectionInfo.ConnectionListener.AddListenerPacketHandlersToConnection(this);
if (NetworkComms.commsShutdown) throw new ConnectionSetupException("Attempting to create new connection after global NetworkComms.Net shutdown has been initiated.");
if (ConnectionInfo.ConnectionType == ConnectionType.Undefined || ConnectionInfo.RemoteEndPoint == null)
throw new ConnectionSetupException("ConnectionType and RemoteEndPoint must be defined within provided ConnectionInfo.");
//If a connection already exists with this info then we can throw an exception here to prevent duplicates
if (NetworkComms.ConnectionExists(connectionInfo.RemoteEndPoint, connectionInfo.LocalEndPoint, connectionInfo.ConnectionType, connectionInfo.ApplicationLayerProtocol))
throw new ConnectionSetupException("A " + connectionInfo.ConnectionType.ToString() + " connection already exists with info " + connectionInfo);
//We add a reference in the constructor to ensure any duplicate connection problems are picked up here
NetworkComms.AddConnectionReferenceByRemoteEndPoint(this);
}
/// <summary>
/// Return the standard deviation of the current list.
/// </summary>
/// <returns>The standard deviation of all values currently in the list.</returns>
public double CalculateStdDeviation()
{
lock (locker)
return(CommsMath.CalculateStdDeviation(this.values, this.weights));
}
/// <summary>
/// Returns the averaged value of CurrentNetworkLoadIncoming, as a value between 0 and 1, for a time window of up to 254 seconds.
/// Triggers load analysis upon first call.
/// </summary>
/// <param name="secondsToAverage">Number of seconds over which historical data should be used to arrive at an average</param>
/// <returns>Average network load as a double between 0 and 1</returns>
public static double AverageNetworkLoadOutgoing(byte secondsToAverage)
{
#if !WINDOWS_PHONE && !ANDROID && !NETFX_CORE
if (!NetworkComms.commsShutdown && NetworkLoadThread == null)
{
lock (NetworkComms.globalDictAndDelegateLocker)
{
if (!NetworkComms.commsShutdown && NetworkLoadThread == null)
{
currentNetworkLoadValuesIncoming = new CommsMath();
currentNetworkLoadValuesOutgoing = new CommsMath();
NetworkLoadThread = new Thread(NetworkLoadWorker);
NetworkLoadThread.Name = "NetworkLoadThread";
NetworkLoadThread.IsBackground = true;
NetworkLoadThread.Start();
}
}
}
return currentNetworkLoadValuesOutgoing.CalculateMean((int)((secondsToAverage * 1000.0) / NetworkLoadUpdateWindowMS));
#else
throw new NotSupportedException("This feature is not supported on the current platform.");
#endif
}
