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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2001-2016. 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(port_call_SUITE).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% Checks if the dynamic driver and linker loader works.
%%%
%%% These tests can only be run installed (outside clearcase).
%%%
%%% XXX In this suite is missing test cases for reference counts
%%% and that drivers are unloaded when their processes die.
%%% (For me to add :-)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export([all/0, suite/0, basic/1]).
% Private exports
-include_lib("common_test/include/ct.hrl").
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap, {seconds, 10}}].
all() ->
[basic].
basic(Config) when is_list(Config) ->
case os:type() of
{unix, linux} ->
do_basic(Config);
{unix, sunos} ->
do_basic(Config);
{win32,_} ->
do_basic(Config);
_ ->
{skipped, "Dynamic linking and erl_interface not fully examined"
" on this platform..."}
end.
do_basic(Config) ->
Path = proplists:get_value(data_dir, Config),
erl_ddll:start(),
%% Load the echo driver and verify that it was loaded.
{ok,L1,L2}=load_port_call_driver(Path),
%% Verify that the driver works.
Port = open_port({spawn, port_call_drv}, [eof]),
{hej, "hopp",4711,123445567436543653} =
erlang:port_call(Port,{hej, "hopp",4711,123445567436543653}),
{hej, "hopp",4711,123445567436543653} =
erlang:port_call(Port,0,{hej, "hopp",4711,123445567436543653}),
{[], a, [], b, c} =
erlang:port_call(Port,1,{hej, "hopp",4711,123445567436543653}),
{return, {[], a, [], b, c}} =
erlang:port_call(Port,2,{[], a, [], b, c}),
List = lists:duplicate(200,5),
{return, List} = erlang:port_call(Port,2,List),
{'EXIT',{badarg,_}} = (catch erlang:port_call(Port,4711,[])),
{'EXIT',{badarg,_}} = (catch erlang:port_call(sune,2,[])),
register(gunnar,Port),
{return, List} = erlang:port_call(gunnar,2,List),
{return, a} = erlang:port_call(gunnar,2,a),
erlang:port_close(Port),
%% Unload the driver and verify that it was unloaded.
ok=unload_port_call_driver(L1,L2),
{error, {already_started, _}} = erl_ddll:start(),
ok = erl_ddll:stop(),
ok.
load_port_call_driver(Path) ->
{ok, L1} = erl_ddll:loaded_drivers(),
ok = erl_ddll:load_driver(Path, port_call_drv),
{ok, L2} = erl_ddll:loaded_drivers(),
["port_call_drv"] = ordsets:to_list(ordsets:subtract(ordsets:from_list(L2),
ordsets:from_list(L1))),
{ok,L1,L2}.
unload_port_call_driver(L1,L2) ->
{ok, L2} = erl_ddll:loaded_drivers(),
ok = erl_ddll:unload_driver(port_call_drv),
{ok, L3} = erl_ddll:loaded_drivers(),
[] = ordsets:to_list(ordsets:subtract(ordsets:from_list(L3),
ordsets:from_list(L1))),
ok.
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