Programming Erlang, 2nd Edition

The SEE API

see.erl is a single module that exports the following functions:

main()

Starts the system.

load_module(Mod)

Loads the module Mod.

log_error(Error)

Prints the value of Error on standard output.

make_server(Name, FunStart, FunHandler)

Creates a permanent server called Name. The initial state of the server is determined by evaluating FunStart(), and the “handler” function for the server is the fun FunHandler (we will say more about this later).

rpc(Name, Query)

Make a remote procedure call Query to the server Name.

change_behaviour(Name,FunHandler)

Change the behavior of the server called Name by sending it a new handler function FunHandler.

keep_alive(Name, Fun)

Make sure that there is always a registered process called Name. This process ...