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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2001-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights 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/1, basic/1]).
% Private exports
-include("test_server.hrl").
all(suite) ->
[basic].
basic(suite) -> [];
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) ->
?line Dog = test_server:timetrap(test_server:seconds(10)),
?line Path = ?config(data_dir, Config),
?line 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.
?line Port = open_port({spawn, port_call_drv}, [eof]),
?line {hej, "hopp",4711,123445567436543653} =
erlang:port_call(Port,{hej, "hopp",4711,123445567436543653}),
?line {hej, "hopp",4711,123445567436543653} =
erlang:port_call(Port,0,{hej, "hopp",4711,123445567436543653}),
?line {[], a, [], b, c} =
erlang:port_call(Port,1,{hej, "hopp",4711,123445567436543653}),
?line {return, {[], a, [], b, c}} =
erlang:port_call(Port,2,{[], a, [], b, c}),
?line List = lists:duplicate(200,5),
?line {return, List} = erlang:port_call(Port,2,List),
?line {'EXIT',{badarg,_}} = (catch erlang:port_call(Port,4711,[])),
?line {'EXIT',{badarg,_}} = (catch erlang:port_call(sune,2,[])),
?line register(gunnar,Port),
?line {return, List} = erlang:port_call(gunnar,2,List),
?line {return, a} = erlang:port_call(gunnar,2,a),
?line erlang:port_close(Port),
%% Unload the driver and verify that it was unloaded.
ok=unload_port_call_driver(L1,L2),
?line {error, {already_started, _}} = erl_ddll:start(),
?line ok = erl_ddll:stop(),
?line test_server:timetrap_cancel(Dog),
ok.
load_port_call_driver(Path) ->
?line {ok, L1} = erl_ddll:loaded_drivers(),
?line ok = erl_ddll:load_driver(Path, port_call_drv),
?line {ok, L2} = erl_ddll:loaded_drivers(),
?line ["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) ->
?line {ok, L2} = erl_ddll:loaded_drivers(),
?line ok = erl_ddll:unload_driver(port_call_drv),
?line {ok, L3} = erl_ddll:loaded_drivers(),
?line [] = ordsets:to_list(ordsets:subtract(ordsets:from_list(L3),
ordsets:from_list(L1))),
ok.
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