I believe I see where you're trying to go with this but I think there is an easier way. Store the reactor proxies as values in a key/value table and then send method names and args to be executed.
Here's a simple example..
-- # Reactor server: Recieves commands from remote client to be run
local component = require 'component'
local event = require 'event'
local modem = component.modem
modem.open(1040)
-- # List of reactors to call methods remotely upon
local reactors = {
r1 = component.proxy(component.get '0c60c'),
r2 = component.proxy(component.get '0ef58'),
r3 = component.proxy(component.get '255aa')
}
repeat
-- # pack it all into a table
local msg = table.pack(event.pull('modem_message'))
-- # the droids we're looking for
local reactor, method = msg[6], msg[7]
-- # args to call with the remote method (if any)
local args = #msg > 7 and table.pack(table.unpack(msg, 8)) or {}
-- # if remote reactor id is present then...
if reactors[reactor] then
-- # execute the method call with args on a specific reactor. guarded for faulty messages with pcall so we dont crash.
local result = table.pack(pcall(reactors[reactor][method], table.unpack(args)))
print(sting.format("called %s on reactor id %s", method, reactor))
-- # respond to client with result
modem.send(msg[2], msg[3], table.unpack(result))
end
-- # client can send the message 'exit' to quit or hold Ctrl+C on the server
until msg[6] == 'exit'
-- # End of server
-- # client: Send remote commands to be run on server components
-- # A very simple client... Spruce it up as needed
local component = require 'component'
local event = require 'event'
local modem = component.modem
modem.open(1040)
modem.send(server.address, server.port, 'r1', 'isProcessing') -- # exec 'isProcessing' on 'r1' at server
print(event.pull('modem_message', modem.address, server.address, server.port)) -- # print and await server response
-- # End of client
