module rpc
import net
import sync
import io
import json
struct Command {
	verb string
}
pub fn setup(c chan string) {
	l := net.listen_tcp(8099) or {
		println('error opening rpc port')
		return
	}
	println('rpc listening 8099')
	for {
		if conn := l.accept() {
			mut reader := io.new_buffered_reader(reader: io.make_reader(conn))
			for {
				if line := reader.read_line() {
					//_ := json.decode(Command, line)  or { panic('a') }
					if _ := json.decode(Command, line) { panic('a') } else { panic('b') }
					if true {
						println('accepted cmd')
					} else {
						println('json err')
					}
				} else {
					break
				}
			}
		} else {
			println('error accept() tcp')
		}
	}
}

import rpc

	rpc_chan := chan string{}
	go rpc.setup(rpc_chan)

				println('matrix $matrix')

				println('matrix: $matrix')
			}
			rpc := <-matrix_chan {
				println('rpc: $rpc')