| public static ZeroEncode ( byte src, int srclen, byte dest ) : int | ||
| src | byte | The byte array to encode |
| srclen | int | The length of the byte array to encode |
| dest | byte | The output byte array to encode to |
| return | int | |
public static int ZeroEncode(byte[] src, int srclen, byte[] dest)
{
uint zerolen = 0;
byte zerocount = 0;
Buffer.BlockCopy(src, 0, dest, 0, 6);
zerolen += 6;
int bodylen;
if ((src[0] & MSG_APPENDED_ACKS) == 0)
{
bodylen = srclen;
}
else
{
bodylen = srclen - src[srclen - 1] * 4 - 1;
}
uint i;
for (i = zerolen; i < bodylen; i++)
{
if (src[i] == 0x00)
{
zerocount++;
if (zerocount == 0)
{
dest[zerolen++] = 0x00;
dest[zerolen++] = 0xff;
zerocount++;
}
}
else
{
if (zerocount != 0)
{
dest[zerolen++] = 0x00;
dest[zerolen++] = (byte)zerocount;
zerocount = 0;
}
dest[zerolen++] = src[i];
}
}
if (zerocount != 0)
{
dest[zerolen++] = 0x00;
dest[zerolen++] = (byte)zerocount;
}
// copy appended ACKs
for (; i < srclen; i++)
{
dest[zerolen++] = src[i];
}
return (int)zerolen;
}
public void SendPacketData(byte[] data, int dataLength, PacketType type, bool doZerocode)
{
UDPPacketBuffer buffer = new UDPPacketBuffer(remoteEndPoint, Packet.MTU);
// Zerocode if needed
if (doZerocode)
{
try { dataLength = Helpers.ZeroEncode(data, dataLength, buffer.Data); }
catch (IndexOutOfRangeException)
{
// The packet grew larger than Packet.MTU bytes while zerocoding.
// Remove the MSG_ZEROCODED flag and send the unencoded data
// instead
data[0] = (byte)(data[0] & ~Helpers.MSG_ZEROCODED);
Buffer.BlockCopy(data, 0, buffer.Data, 0, dataLength);
}
}
else
{
Buffer.BlockCopy(data, 0, buffer.Data, 0, dataLength);
}
buffer.DataLength = dataLength;
#region Queue or Send
NetworkManager.OutgoingPacket outgoingPacket = new NetworkManager.OutgoingPacket(this, buffer);
// Send ACK and logout packets directly, everything else goes through the queue
if (Client.Settings.THROTTLE_OUTGOING_PACKETS == false ||
type == PacketType.PacketAck ||
type == PacketType.LogoutRequest)
{
SendPacketFinal(outgoingPacket);
}
else
{
Network.PacketOutbox.Enqueue(outgoingPacket);
}
#endregion Queue or Send
#region Stats Tracking
if (Client.Settings.TRACK_UTILIZATION)
{
Client.Stats.Update(type.ToString(), OpenMetaverse.Stats.Type.Packet, dataLength, 0);
}
#endregion
}
