private static byte[] SendBuffer(Packet packet)
{
var encoded = packet.Encode();
var header = IPAddress.HostToNetworkOrder(encoded.Length);
return(BinarySerde.Encode(writer =>
{
writer.Write(header);
writer.Write(encoded);
}));
}
public byte[] Encode()
{
return(BinarySerde.Encode(writer =>
{
writer.Write(PacketType);
writer.Write(_name);
// ignored if Messages is empty
foreach (var message in Messages)
{
writer.Write(message.Encode());
}
}));
}
private static Tuple <byte, string, Message[]> ReadPacket(byte[] data)
{
return(BinarySerde.Parse(data, reader =>
{
var packetType = reader.ReadByte();
var(name, nameLen) = IsNamedList[packetType]
? ReadName(reader)
: new Tuple <string, int>(null, 0);
var remain = data.Length - (1 + nameLen);
var messages = remain == 0
? new Message[] { }
: ReadMessages(reader, remain);
return new Tuple <byte, string, Message[]>(packetType, name, messages);
}));
}
public static Message[] Parse(byte[] data)
{
return(BinarySerde.Parse(data, reader =>
{
var count = 0;
var messages = new List <Message>();
while (count < data.Length)
{
var type = reader.ReadByte();
count += 1;
var(message, length) = reader.ReadMessage(type);
messages.Add(message);
count += length;
}
return messages.ToArray();
}));
}
private int ReceiveHeader()
{
const int HEADER_SIZE = 4;
var headerBuffer = new byte[HEADER_SIZE];
var length = HEADER_SIZE;
var sum = 0;
while (sum < length)
{
var received = _socket.Receive(headerBuffer, sum, length - sum, SocketFlags.None);
sum += received;
}
return(BinarySerde.Parse(headerBuffer, reader =>
{
var data = reader.ReadInt32();
return IPAddress.NetworkToHostOrder(data);
}));
}
private byte[] ReceiveData(int length)
{
var buffer = new byte[MaxSegment];
var sum = 0;
while (sum < length)
{
var received = _socket.Receive(buffer, sum, length - sum, SocketFlags.None);
sum += received;
}
if (sum > length)
{
throw new InvalidDataException($"invalid size: {sum} (expected:{length})");
}
return(BinarySerde.Parse(buffer, reader =>
{
return reader.ReadBytes(length);
}));
}
public override byte[] Encode()
{
return(BinarySerde.Encode(Key, Values));
}