could not find method :* for nil, or :r* for 256

[eko234]

Hi, I'm trying to implement a terminal multiplayer game with the rpc module but
I'm having trouble with it, I have a server and N clients, when a client connects to a
server it sends the server his host and port so the server also establishes a connection
with each client, so each client is connected to the server and the server is connected to each client,
I keep the connections in a table.

What I want to do is to lets say, send a message to every client from the server, but when I do so
the server and the first client it tries to communicate with hangs, and sometimes I get this error:

error: could not find method :* for nil, or :r* for 256
in rpc-function [/usr/local/lib/janet/spork/rpc.janet] on line 83, column 23
in game-repl [main.janet] (tailcall) on line 45, column 30
in _thunk [main.janet] (tailcall) on line -1, column -1
in cli-main [boot.janet] on line 3677, column 17

I'm at a loss trying to understand or debug this, hope you can help me out.

[eko234]

btw, when there is only a connection between the server and one client, things work well...

[bakpakin]

Sorry, long time sitting here, I should have responded earlier. However, I will answer for the next person to come along.

The RPC module has a limitation about many concurrent messages, quoted from the source:

### Limitations:
###
### Currently calls are resolved in the order that they are sent
### on the connection - in other words, a single RPC server must resolve
### remote calls sequentially. This means it is recommended to make multiple
### connections for separate transactions.

I think this may apply to you, although I can't say for certain without source code.