Add system message 'terminate'

This is to be used when implementing synchronous stop of generic
behaviours and other 'sys special processes'.

3 files changed, 9 insertions, 33 deletions

diff --git a/lib/stdlib/test/sys_SUITE.erl b/lib/stdlib/test/sys_SUITE.erl
index f38bc87ae5..047ee9f1fa 100644
--- a/lib/stdlib/test/sys_SUITE.erl
+++ b/lib/stdlib/test/sys_SUITE.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
@@ -202,14 +202,7 @@ spec_proc(Mod) ->
 		       {Mod,system_get_state},{throw,fail}},_}} ->
 		 ok
 	 end,
-    Mod:stop(),
-    WaitForUnregister = fun W() ->
-		       case whereis(Mod) of
-			   undefined -> ok;
-			   _ -> timer:sleep(10), W()
-		       end
-	       end,
-    WaitForUnregister(),
+    ok = sys:terminate(Mod, normal),
     {ok,_} = Mod:start_link(4),
     ok = case catch sys:replace_state(Mod, fun(_) -> {} end) of
 	     {} ->
@@ -218,8 +211,7 @@ spec_proc(Mod) ->
 		       {Mod,system_replace_state},{throw,fail}},_}} ->
 		 ok
 	 end,
-    Mod:stop(),
-    WaitForUnregister(),
+    ok = sys:terminate(Mod, normal),
     {ok,_} = Mod:start_link(4),
     StateFun = fun(_) -> error(fail) end,
     ok = case catch sys:replace_state(Mod, StateFun) of
@@ -231,7 +223,7 @@ spec_proc(Mod) ->
 	     {'EXIT',{{callback_failed,StateFun,{error,fail}},_}} ->
 		 ok
 	 end,
-    Mod:stop().
+    ok = sys:terminate(Mod, normal).
 
 %%%%%%%%%%%%%%%%%%%%
 %% Dummy server
diff --git a/lib/stdlib/test/sys_sp1.erl b/lib/stdlib/test/sys_sp1.erl
index e84ffcfa12..0fb288991f 100644
--- a/lib/stdlib/test/sys_sp1.erl
+++ b/lib/stdlib/test/sys_sp1.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
@@ -17,7 +17,7 @@
 %% %CopyrightEnd%
 %%
 -module(sys_sp1).
--export([start_link/1, stop/0]).
+-export([start_link/1]).
 -export([alloc/0, free/1]).
 -export([init/1]).
 -export([system_continue/3, system_terminate/4,
@@ -31,10 +31,6 @@
 start_link(NumCh) ->
     proc_lib:start_link(?MODULE, init, [[self(),NumCh]]).
 
-stop() ->
-    ?MODULE ! stop,
-    ok.
-
 alloc() ->
     ?MODULE ! {self(), alloc},
     receive
@@ -70,11 +66,7 @@ loop(Chs, Parent, Deb) ->
             loop(Chs2, Parent, Deb2);
         {system, From, Request} ->
             sys:handle_system_msg(Request, From, Parent,
-                                  ?MODULE, Deb, Chs);
-        stop ->
-            sys:handle_debug(Deb, fun write_debug/3,
-                             ?MODULE, {in, stop}),
-            ok
+                                  ?MODULE, Deb, Chs)
     end.
 
 system_continue(Parent, Deb, Chs) ->
diff --git a/lib/stdlib/test/sys_sp2.erl b/lib/stdlib/test/sys_sp2.erl
index f1188461f1..a0847b5838 100644
--- a/lib/stdlib/test/sys_sp2.erl
+++ b/lib/stdlib/test/sys_sp2.erl
@@ -17,7 +17,7 @@
 %% %CopyrightEnd%
 %%
 -module(sys_sp2).
--export([start_link/1, stop/0]).
+-export([start_link/1]).
 -export([alloc/0, free/1]).
 -export([init/1]).
 -export([system_continue/3, system_terminate/4,
@@ -30,10 +30,6 @@
 start_link(NumCh) ->
     proc_lib:start_link(?MODULE, init, [[self(),NumCh]]).
 
-stop() ->
-    ?MODULE ! stop,
-    ok.
-
 alloc() ->
     ?MODULE ! {self(), alloc},
     receive
@@ -69,11 +65,7 @@ loop(Chs, Parent, Deb) ->
             loop(Chs2, Parent, Deb2);
         {system, From, Request} ->
             sys:handle_system_msg(Request, From, Parent,
-                                  ?MODULE, Deb, Chs);
-        stop ->
-            sys:handle_debug(Deb, fun write_debug/3,
-                             ?MODULE, {in, stop}),
-            ok
+                                  ?MODULE, Deb, Chs)
     end.
 
 system_continue(Parent, Deb, Chs) ->