static object UnpackExt8(byte a, BinaryReader reader)
{
var length = reader.ReadByte();
var extType = reader.ReadByte();
if (extType != 10)
{
throw new InvalidOperationException("Only extension type 10 (Citizen funcref) is handled by this class.");
}
var funcRefData = reader.ReadBytes(length);
var remoteFunctionReference = new RemoteFunctionReference(funcRefData);
return(new CallbackDelegate(delegate(object[] args)
{
var byteData = MsgPackSerializer.Serialize(args);
var returnByteData = remoteFunctionReference.InvokeNative(byteData);
var returnData = Deserialize(returnByteData) as List <object>;
if (returnData == null || returnData.Count == 0)
{
return null;
}
return (returnData)[0];
}));
}
protected override void PackToCore(MsgPack.Packer packer, Delegate objectTree)
{
if (objectTree is CallbackDelegate)
{
var funcRef = objectTree.Method.DeclaringType?.GetFields(BindingFlags.NonPublic |
BindingFlags.Instance |
BindingFlags.Public |
BindingFlags.Static).FirstOrDefault(a => a.FieldType == typeof(RemoteFunctionReference));
if (funcRef == null)
{
throw new ArgumentException("The CallbackDelegate does not contain a RemoteFunctionReference capture.");
}
RemoteFunctionReference fr = (RemoteFunctionReference)funcRef.GetValue(objectTree.Target);
packer.PackExtendedTypeValue(10, fr.Duplicate());
}
else
{
var funcRefDetails = FunctionReference.Create(objectTree);
string refType = InternalManager.CanonicalizeRef(funcRefDetails.Identifier);
packer.PackExtendedTypeValue(10, Encoding.UTF8.GetBytes(refType));
}
}
static object CreateRemoteFunctionReference(byte[] funcRefData)
{
var remoteFunctionReference = new RemoteFunctionReference(funcRefData);
return(new CallbackDelegate(delegate(object[] args)
{
var byteData = MsgPackSerializer.Serialize(args);
var returnByteData = remoteFunctionReference.InvokeNative(byteData);
var returnData = Deserialize(returnByteData) as List <object>;
if (returnData == null || returnData.Count == 0)
{
return null;
}
if (returnData[0] is IDictionary <string, object> obj)
{
if (obj.TryGetValue("__cfx_async_retval", out dynamic asyncRef))
{
var tcs = new TaskCompletionSource <object>();
asyncRef(new Action <dynamic, dynamic>((res, err) =>
{
if (err != null && err != false)
{
tcs.SetException(new Exception(err.ToString()));
}
else
{
tcs.SetResult(res[0]);
}
}));
return tcs.Task;
}
}
return (returnData)[0];
}));
}
static object UnpackExt8(byte a, BinaryReader reader)
{
var length = reader.ReadByte();
var extType = reader.ReadByte();
if (extType != 1)
{
throw new InvalidOperationException("Only extension type 1 (Citizen callback) is handled by this class.");
}
// read the local reference ID
var tmpBytes = reader.ReadBytes(4);
var reference = BitConverter.ToUInt32(new byte[] { tmpBytes[3], tmpBytes[2], tmpBytes[1], tmpBytes[0] }, 0);
// read the environment instance ID
tmpBytes = reader.ReadBytes(4);
var instance = BitConverter.ToUInt32(new byte[] { tmpBytes[3], tmpBytes[2], tmpBytes[1], tmpBytes[0] }, 0);
// read the resource name
tmpBytes = reader.ReadBytes(length - 8);
var resource = Encoding.UTF8.GetString(tmpBytes, 0, tmpBytes.Length);
var remoteFunctionReference = new RemoteFunctionReference(resource, instance, reference);
return(new CallbackDelegate(delegate(object[] args)
{
var byteData = MsgPackSerializer.Serialize(args);
var returnByteData = remoteFunctionReference.InvokeNative(byteData);
var returnData = Deserialize(returnByteData) as List <object>;
if (returnData == null || returnData.Count == 0)
{
return null;
}
return (returnData)[0];
}));
}
