diff options
| -rw-r--r-- | lib/stdlib/test/sys_sp2.erl | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/lib/stdlib/test/sys_sp2.erl b/lib/stdlib/test/sys_sp2.erl index 56a5e4d071..f1188461f1 100644 --- a/lib/stdlib/test/sys_sp2.erl +++ b/lib/stdlib/test/sys_sp2.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. 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 @@ -45,11 +45,6 @@ free(Ch) -> ?MODULE ! {free, Ch}, ok. -%% can't use 2-tuple for state here as we do in sys_sp1, since the 2-tuple -%% is not compatible with the backward compatibility handling for -%% sys:get_state in sys.erl --record(state, {alloc,free}). - init([Parent,NumCh]) -> register(?MODULE, self()), Chs = channels(NumCh), @@ -91,17 +86,17 @@ write_debug(Dev, Event, Name) -> io:format(Dev, "~p event = ~p~n", [Name, Event]). channels(NumCh) -> - #state{alloc=[], free=lists:seq(1,NumCh)}. + {_Allocated=[], _Free=lists:seq(1,NumCh)}. -alloc(#state{free=[]}=Channels) -> - {{error, "no channels available"}, Channels}; -alloc(#state{alloc=Allocated, free=[H|T]}) -> - {H, #state{alloc=[H|Allocated], free=T}}. +alloc({_, []}) -> + {error, "no channels available"}; +alloc({Allocated, [H|T]}) -> + {H, {[H|Allocated], T}}. -free(Ch, #state{alloc=Alloc, free=Free}=Channels) -> +free(Ch, {Alloc, Free}=Channels) -> case lists:member(Ch, Alloc) of true -> - #state{alloc=lists:delete(Ch, Alloc), free=[Ch|Free]}; + {lists:delete(Ch, Alloc), [Ch|Free]}; false -> Channels end. |