%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2000-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
-module(erl_global_SUITE).
-include_lib("common_test/include/ct.hrl").
-include("erl_global_SUITE_data/erl_global_test_cases.hrl").
-export([all/0,suite/0,
erl_global_registration/1,
erl_global_whereis/1, erl_global_names/1]).
-import(runner, [get_term/1,send_term/2]).
-define(GLOBAL_NAME, global_register_node_test).
all() ->
[erl_global_registration, erl_global_whereis, erl_global_names].
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap, {seconds, 30}}].
erl_global_registration(Config) when is_list(Config) ->
P = runner:start(?interpret),
{ok, Fd} = erl_connect(P, node(), 42, erlang:get_cookie(), 0),
ok = erl_global_register(P, Fd, ?GLOBAL_NAME),
ok = erl_global_unregister(P, Fd, ?GLOBAL_NAME),
0 = erl_close_connection(P,Fd),
runner:send_eot(P),
runner:recv_eot(P),
ok.
erl_global_whereis(Config) when is_list(Config) ->
P = runner:start(?interpret),
{ok, Fd} = erl_connect(P, node(), 42, erlang:get_cookie(), 0),
Self = self(),
yes = global:register_name(?GLOBAL_NAME, Self),
Self = erl_global_whereis(P, Fd, ?GLOBAL_NAME),
global:unregister_name(?GLOBAL_NAME),
0 = erl_close_connection(P, Fd),
runner:send_eot(P),
runner:recv_eot(P),
ok.
erl_global_names(Config) when is_list(Config) ->
P = runner:start(?interpret),
{ok, Fd} = erl_connect(P, node(), 42, erlang:get_cookie(), 0),
Self = self(),
global:register_name(?GLOBAL_NAME, Self),
{Names1, _N1} = erl_global_names(P, Fd),
true = lists:member(atom_to_list(?GLOBAL_NAME), Names1),
global:unregister_name(?GLOBAL_NAME),
{Names2, _N2} = erl_global_names(P, Fd),
false = lists:member(atom_to_list(?GLOBAL_NAME), Names2),
0 = erl_close_connection(P, Fd),
runner:send_eot(P),
runner:recv_eot(P),
ok.
%%% Interface functions for erl_interface functions.
erl_connect(P, Node, Num, Cookie, Creation) ->
send_command(P, erl_connect, [Num, Node, Cookie, Creation]),
case get_term(P) of
{term,{Fd,_}} when Fd >= 0 -> {ok,Fd};
{term,{-1,Errno}} -> {error,Errno}
end.
erl_close_connection(P, FD) ->
send_command(P, erl_close_connection, [FD]),
case get_term(P) of
{term,Int} when is_integer(Int) -> Int
end.
erl_global_register(P, Fd, Name) ->
send_command(P, erl_global_register, [Fd,Name]),
get_send_result(P).
erl_global_whereis(P, Fd, Name) ->
send_command(P, erl_global_whereis, [Fd,Name]),
case get_term(P) of
{term, What} ->
What
end.
erl_global_names(P, Fd) ->
send_command(P, erl_global_names, [Fd]),
case get_term(P) of
{term, What} ->
What
end.
erl_global_unregister(P, Fd, Name) ->
send_command(P, erl_global_unregister, [Fd,Name]),
get_send_result(P).
get_send_result(P) ->
case get_term(P) of
{term,{1,_}} -> ok;
{term,{0, 0}} -> ok;
{term,{-1, Errno}} -> {error,Errno};
{term,{_,_}}->
ct:fail(bad_return_value)
end.
send_command(P, Name, Args) ->
runner:send_term(P, {Name,list_to_tuple(Args)}).
