a callback server - header file

gen_callback_server.hrl

-ifndef(__GEN_CALLBACK_SERVER_HRL__).
-define(__GEN_CALLBACK_SERVER_HRL__, 1).

-type process_ref() :: pid() | {atom(), node()}.
-type server_ref()  :: pid() | {{local, atom()} | {global, term()} | {via, module(), term()}, node()}.

-define(RECEIVE_CB,      (fun gen_callback_server:receive_cb/2)).
-define(REPLY_CB,        (fun gen_callback_server:reply_cb/1)).
-define(CLIENT_REPLY_CB, (fun gen_callback_server:client_reply_cb/1)).
-define(MIXED_REPLY_CB,  (fun gen_callback_server:mixed_reply_cb/1)).

-record(cb_event,
    {
        reply_to  = none :: process_ref() | none,
        cb_arg    = none :: any(),
        msg_ref   = none :: reference() | none,
        sent_from = none :: server_ref() | none,
        context   = none :: any()
    }).

-endif.