public MessageInfo AnalyzeMessage(byte[] data, int offset, int length)
{
var reader = new BinaryReader(new MemoryStream(data, offset, length));
byte header = reader.ReadByte();
if ((header & ResponseTypeFlag) == 0)
{
byte ifaceOrdinal = header;
byte methodOrdinal = reader.ReadByte();
HandlerData handlerData = _handlersData[ifaceOrdinal];
RpcMethodInfo rpcMethodInfo = handlerData.InterfaceMethods[methodOrdinal];
return(new MessageInfo
{
Type = MessageType.HandlerCall,
InterfaceType = RpcInterface.GetRpcInterface(ifaceOrdinal),
InterfaceMethodInfo = rpcMethodInfo.MethodInfo,
Handler = handlerData.Handler,
});
}
return(new MessageInfo
{
Type = MessageType.CallResult,
});
}
private void ProcessHandlerCall(BinaryReader reader, byte ifaceOrdinal, object context)
{
HandlerData handlerData;
if (!_handlersData.TryGetValue(ifaceOrdinal, out handlerData))
{
Type ifaceType = RpcInterface.GetRpcInterface(ifaceOrdinal);
if (ifaceType == null)
{
throw new ProtocolViolationException("Unknown RPC interface ordinal received: " + ifaceOrdinal);
}
MethodInfo mi = RpcInterface.GetOrderedMethods(ifaceType)[reader.ReadByte()].MethodInfo;
throw new ProtocolViolationException("RPC call received for " + ifaceType.FullName + "." + mi.Name +
" which does not have a handler registered.");
}
byte methodOrdinal = reader.ReadByte();
RpcMethodInfo rpcMethodInfo = handlerData.InterfaceMethods[methodOrdinal];
MethodInfo methodInfo = rpcMethodInfo.MethodInfo;
byte callId = 0;
if (rpcMethodInfo.HasReturnType)
{
callId = reader.ReadByte();
}
var paramsInfo = methodInfo.GetParameters();
var paramValues = new object[paramsInfo.Length];
for (int i = 0, n = paramValues.Length; i < n; ++i)
{
paramValues[i] = BinarySerializer.DeserializeParameter(reader, paramsInfo[i]);
}
var callContext = new HandlerCallContext
{
HandlerType = handlerData.RpcInterfaceType,
Handler = handlerData.Handler,
Method = methodInfo,
CallId = callId,
Context = context,
};
if (OnBeforeHandlerCall != null)
{
OnBeforeHandlerCall(callContext);
}
callContext.Result = methodInfo.Invoke(handlerData.Handler, paramValues);
if (callContext.Result != null && OnDataOut != null)
{
Type resultFutureType = callContext.Result.GetType();
var stream = new MemoryStream(64);
var writer = new BinaryWriter(stream);
var header = (byte)(ResponseTypeFlag | callId);
writer.Write((byte)header);
resultFutureType.GetMethod("Serialize", BindingFlags.NonPublic | BindingFlags.Instance)
.Invoke(callContext.Result, new object[] { writer });
OnDataOut(stream.ToArray(), 0, (int)stream.Length);
}
if (OnAfterHandlerCall != null)
{
OnAfterHandlerCall(callContext);
}
}