/// <summary>
/// Sets the target identifier
/// </summary>
public UpdateMessage( Guid targetId, uint sequence, Message payload )
{
m_TargetId = targetId;
m_Payload = payload;
m_Sequence = sequence;
}
/// <summary>
/// Called when this object receives a message of UpdateMessageType
/// </summary>
private MessageRecipientResult ReceivedMessage( Message msg )
{
// If the message came from an update handler (should be - with the same host ID), then just ignore the message. Why?
// Because that means that the handler received a message from the update source, which is also the target for this update
// provider's messages, meaning the message will be endlessly circulating if they aren't ignored here
if ( ( m_IgnoreUpdateHandlerMessages ) && ( msg.Sender is IUpdateHandler ) )
{
return MessageRecipientResult.DeliverToNext;
}
// Add the message to the message buffer, and don't let the rest of the chain handle the message
m_Buffer.AddMessage( new UpdateMessage( Id, m_Sequence, msg ), m_Sequence );
if ( m_RemoveBufferedMessages )
{
return MessageRecipientResult.RemoveFromChain;
}
return MessageRecipientResult.DeliverToNext;
}
/// <summary>
/// Adds a message to the outgoing message queue. On the next network tick, all queued messages will be sent
/// </summary>
public void DeliverMessage( Message msg )
{
if ( IsConnected )
{
// TODO: AP: Use a network stream? Requires stream sockets
// TODO: AP: Cache messages in a memory stream?
MemoryStream messageStore = new MemoryStream( );
m_Formatter.Serialize( messageStore, msg );
messageStore.Close( );
byte[] messageBytes = messageStore.ToArray( );
m_Socket.Send( messageBytes );
}
}
/// <summary>
/// Called when the specified connection receives a message
/// </summary>
private void OnReceivedMessage( IConnection connection, Message msg )
{
if ( msg is TargetSequenceMessage )
{
foreach ( TargetConnection target in m_Targets )
{
if ( target.Connection == connection )
{
target.Sequence = ( ( TargetSequenceMessage )msg ).Sequence;
return;
}
}
}
}
private static void MessageChecker( IConnection connection, Message msg )
{
Assert.AreEqual( ( ( TestMessage )msg ).m_Content.m_Value, 10 );
}
/// <summary>
/// Handles messages sent over a specified connection
/// </summary>
private void OnReceivedMessage( IConnection connection, Message msg )
{
if ( !( msg is UpdateMessageBatch ) )
{
// Not interested
return;
}
UpdateMessageBatch batchMsg = ( UpdateMessageBatch )msg;
if ( batchMsg.Sequence < m_Sequence ) // TODO: Should be <=. Just ordering issues between update message creation and sequence increment
{
return;
}
// Message away
if ( batchMsg.Messages != null )
{
foreach ( UpdateMessage updateMsg in batchMsg.Messages )
{
if ( updateMsg.Sequence >= m_Sequence ) // TODO: Should be >. Just ordering issues between update message creation and sequence increment
{
IUpdateHandler handler = m_HandlerMap[ updateMsg.TargetId ];
handler.Handle( updateMsg );
}
}
}
m_Sequence = batchMsg.Sequence;
// Let's let the source know that we got an update! yay!
// TODO: Should this be sent at every frame?
// TODO: If there's an update source, then the information about the target sequence can be piggy-backed in an UpdateMessageBatch
connection.DeliverMessage( new TargetSequenceMessage( m_Sequence ) );
}
