private static List <MessagePart> GetMessageParts(Package message, int mtuSize, Reliability reliability, PlayerNetworkSession session)
{
var messageParts = new List <MessagePart>();
byte[] encodedMessage = message.Encode();
int orderingIndex = 0;
CryptoContext cryptoContext = session.CryptoContext;
if (cryptoContext != null && !(message is ConnectedPong) && !(message is DetectLostConnections))
{
lock (session.EncodeSync)
{
McpeWrapper wrapper = McpeWrapper.CreateObject();
reliability = Reliability.ReliableOrdered;
orderingIndex = Interlocked.Increment(ref session.OrderingIndex);
if (!message.ForceClear && session.CryptoContext.UseEncryption)
{
wrapper.payload = CryptoUtils.Encrypt(encodedMessage, cryptoContext);
}
else
{
wrapper.payload = encodedMessage;
}
encodedMessage = wrapper.Encode();
//if (Log.IsDebugEnabled)
// Log.Debug($"0x{encodedMessage[0]:x2}\n{Package.HexDump(encodedMessage)}");
wrapper.PutPool();
}
}
//if (Log.IsDebugEnabled)
// Log.Debug($"0x{encodedMessage[0]:x2}\n{Package.HexDump(encodedMessage)}");
if (encodedMessage == null)
{
return(messageParts);
}
int datagramHeaderSize = 100;
int count = (int)Math.Ceiling(encodedMessage.Length / ((double)mtuSize - datagramHeaderSize));
int index = 0;
if (session.SplitPartId > short.MaxValue - 100)
{
Interlocked.CompareExchange(ref session.SplitPartId, 0, short.MaxValue);
}
short splitId = (short)Interlocked.Increment(ref session.SplitPartId);
if (count <= 1)
{
MessagePart messagePart = MessagePart.CreateObject();
messagePart.Header.Reliability = reliability;
messagePart.Header.ReliableMessageNumber = Interlocked.Increment(ref session.ReliableMessageNumber);
messagePart.Header.HasSplit = count > 1;
messagePart.Header.PartCount = count;
messagePart.Header.PartId = splitId;
messagePart.Header.PartIndex = index++;
messagePart.Header.OrderingChannel = 0;
messagePart.Header.OrderingIndex = orderingIndex;
messagePart.ContainedMessageId = message.Id;
messagePart.Buffer = encodedMessage;
messageParts.Add(messagePart);
}
else
{
foreach (var bytes in ArraySplit(encodedMessage, mtuSize - datagramHeaderSize))
{
MessagePart messagePart = MessagePart.CreateObject();
messagePart.Header.Reliability = reliability;
messagePart.Header.ReliableMessageNumber = Interlocked.Increment(ref session.ReliableMessageNumber);
messagePart.Header.HasSplit = count > 1;
messagePart.Header.PartCount = count;
messagePart.Header.PartId = splitId;
messagePart.Header.PartIndex = index++;
messagePart.Header.OrderingChannel = 0;
messagePart.Header.OrderingIndex = orderingIndex;
messagePart.ContainedMessageId = message.Id;
messagePart.Buffer = bytes;
messageParts.Add(messagePart);
}
}
return(messageParts);
}