/// <summary>
/// Constructs a <see cref="UdpBroadcastMessage"/> from the parameters passed and
/// serializes it into the wire format.
/// </summary>
/// <param name="messageType">The message type.</param>
/// <param name="sourceAddress">The IP address of the message source.</param>
/// <param name="broadcastGroup">The broadcast group.</param>
/// <param name="payload">The broadcast packet payload.</param>
/// <returns>The packet bytes.</returns>
private byte[] GetMessageBytes(UdpBroadcastMessageType messageType, IPAddress sourceAddress, int broadcastGroup, byte[] payload)
{
var message = new UdpBroadcastMessage(messageType, sourceAddress, broadcastGroup, payload);
if (FixedTimestampUtc > DateTime.MinValue)
{
message.TimeStampUtc = FixedTimestampUtc;
}
return(message.ToArray(settings.SharedKey));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="messageType">The message type.</param>
/// <param name="sourceAddress">The IPv4 address of the packet source.</param>
/// <param name="broadcastGroup">The broadcast group.</param>
/// <param name="payload">The broadcast packet payload.</param>
/// <exception cref="InvalidOperationException">Thrown if an non IPv4 address is set as the packet source.</exception>
public UdpBroadcastMessage(UdpBroadcastMessageType messageType, IPAddress sourceAddress, int broadcastGroup, byte[] payload)
{
if (payload == null)
{
payload = EmptyPayload;
}
this.MessageType = messageType;
this.TimeStampUtc = DateTime.UtcNow;
this.SourceAddress = sourceAddress;
this.BroadcastGroup = broadcastGroup;
this.Payload = payload;
}
/// <summary>
/// Constructs a <see cref="UdpBroadcastMessage"/> from the parameters passed and
/// serializes it into the wire format.
/// </summary>
/// <param name="messageType">The message type.</param>
/// <param name="broadcastGroup">The broadcast group.</param>
/// <param name="payload">The broadcast packet payload.</param>
/// <returns>The packet bytes.</returns>
private byte[] GetMessageBytes(UdpBroadcastMessageType messageType, int broadcastGroup, byte[] payload)
{
return(GetMessageBytes(messageType, IPAddress.Any, broadcastGroup, payload));
}
/// <summary>
/// Constructs a <see cref="UdpBroadcastMessage"/> from the parameters passed and
/// serializes it into the wire format.
/// </summary>
/// <param name="messageType">The message type.</param>
/// <returns>The packet bytes.</returns>
private byte[] GetMessageBytes(UdpBroadcastMessageType messageType)
{
return(GetMessageBytes(messageType, 0, null));
}
/// <summary>
/// Constructs a <see cref="UdpBroadcastMessage"/> from the parameters passed and
/// serializes it into the wire format.
/// </summary>
/// <param name="messageType">The message type.</param>
/// <returns>The packet bytes.</returns>
/// <param name="broadcastGroup">The broadcast group.</param>
private byte[] GetMessageBytes(UdpBroadcastMessageType messageType, int broadcastGroup)
{
return(GetMessageBytes(messageType, broadcastGroup, null));
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="messageType">The message type.</param>
/// <param name="broadcastGroup">The broadcast group.</param>
public UdpBroadcastMessage(UdpBroadcastMessageType messageType, int broadcastGroup)
: this(messageType, IPAddress.Any, broadcastGroup, null)
{
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="messageType">The message type.</param>
public UdpBroadcastMessage(UdpBroadcastMessageType messageType)
: this(messageType, IPAddress.Any, 0, null)
{
}
