/// <summary>
/// Creates a concrete instance of IXDBroadcast used to broadcast messages to
/// other processes in one or more modes.
/// </summary>
/// <param name="modes">One or more transport mechanisms to use for interprocess communication.</param>
/// <returns>The concreate instance of IXDBroadcast</returns>
public static IXDBroadcast CreateBroadcast(params XDTransportMode[] modes)
{
if (modes.Length == 0)
{
throw new ArgumentException("At least one transport mode must be defined.");
}
if (modes.Length == 1)
{
switch (modes[0])
{
case XDTransportMode.IOStream:
return(new XDIOStreamBroadcast());
case XDTransportMode.MailSlot:
return(new XDMailSlotBroadcast(false));
default:
return(new XDWindowsMessaging());
}
}
else
{
// ensure only one of each type added
Dictionary <XDTransportMode, IXDBroadcast> singleItems = new Dictionary <XDTransportMode, IXDBroadcast>();
foreach (XDTransportMode mode in modes)
{
// only add one of each mode
if (!singleItems.ContainsKey(mode))
{
singleItems.Add(mode, XDBroadcast.CreateBroadcast(mode));
}
}
return(new XDMultiBroadcast(singleItems.Values));
}
}
/// <summary>
/// The non-obsolete constructor used internally for creating new instances of XDListener.
/// </summary>
/// <param name="nonObsolete"></param>
internal XDListener(bool nonObsolete)
{
// create a top-level native window
CreateParams p = new CreateParams();
p.Width = 0;
p.Height = 0;
p.X = 0;
p.Y = 0;
p.Caption = string.Concat("TheCodeKing.Net.XDServices.", Guid.NewGuid().ToString());
p.Parent = IntPtr.Zero;
base.CreateHandle(p);
this.networkRelay = new NetworkRelayListener(XDBroadcast.CreateBroadcast(XDTransportMode.WindowsMessaging),
XDListener.CreateListener(XDTransportMode.MailSlot));
}
/// <summary>
/// Creates an instance of IXDBroadcast with the otption to propagate over the local network.
/// </summary>
/// <param name="mode">The broadcast mode.</param>
/// <param name="propagateNetwork">true to propagate messages over the local network.</param>
/// <returns></returns>
public static IXDBroadcast CreateBroadcast(XDTransportMode mode, bool propagateNetwork)
{
// MailSlots can communicate over a network by default, so
// no need to use the NetworkRelayBroadcast instance for this type.
if (mode == XDTransportMode.MailSlot)
{
return(new XDMailSlotBroadcast(propagateNetwork));
}
IXDBroadcast broadcast = CreateBroadcast(mode);
if (propagateNetwork)
{
// create a wrapper to broadcast that will also send messages over network
return(new NetworkRelayBroadcast(broadcast, XDBroadcast.CreateBroadcast(XDTransportMode.MailSlot, true)));
}
else
{
return(broadcast);
}
}
