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-rw-r--r--lib/stdlib/doc/src/sys.xml13
-rw-r--r--lib/stdlib/src/sys.erl27
-rw-r--r--lib/stdlib/test/sys_SUITE.erl16
-rw-r--r--lib/stdlib/test/sys_sp1.erl14
-rw-r--r--lib/stdlib/test/sys_sp2.erl12
5 files changed, 45 insertions, 37 deletions
diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml
index a46fa1289f..7fb82e0e7e 100644
--- a/lib/stdlib/doc/src/sys.xml
+++ b/lib/stdlib/doc/src/sys.xml
@@ -4,7 +4,7 @@
<erlref>
<header>
<copyright>
- <year>1996</year><year>2013</year>
+ <year>1996</year><year>2014</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -356,6 +356,17 @@
installed.</p>
</desc>
</func>
+ <func>
+ <name name="terminate" arity="2"/>
+ <name name="terminate" arity="3"/>
+ <fsummary>Terminate the process</fsummary>
+ <desc>
+ <p>This function orders the process to terminate with the
+ given <c><anno>Reason</anno></c>. The termination is done
+ asynchronously, so there is no guarantee that the process is
+ actually terminated when the function returns.</p>
+ </desc>
+ </func>
</funcs>
<section>
diff --git a/lib/stdlib/src/sys.erl b/lib/stdlib/src/sys.erl
index e25cc25f57..ec6813a28a 100644
--- a/lib/stdlib/src/sys.erl
+++ b/lib/stdlib/src/sys.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
@@ -24,6 +24,7 @@
get_state/1, get_state/2,
replace_state/2, replace_state/3,
change_code/4, change_code/5,
+ terminate/2, terminate/3,
log/2, log/3, trace/2, trace/3, statistics/2, statistics/3,
log_to_file/2, log_to_file/3, no_debug/1, no_debug/2,
install/2, install/3, remove/2, remove/3]).
@@ -159,6 +160,19 @@ change_code(Name, Mod, Vsn, Extra) ->
change_code(Name, Mod, Vsn, Extra, Timeout) ->
send_system_msg(Name, {change_code, Mod, Vsn, Extra}, Timeout).
+-spec terminate(Name, Reason) -> 'ok' when
+ Name :: name(),
+ Reason :: term().
+terminate(Name, Reason) ->
+ send_system_msg(Name, {terminate, Reason}).
+
+-spec terminate(Name, Reason, Timeout) -> 'ok' when
+ Name :: name(),
+ Reason :: term(),
+ Timeout :: timeout().
+terminate(Name, Reason, Timeout) ->
+ send_system_msg(Name, {terminate, Reason}, Timeout).
+
%%-----------------------------------------------------------------
%% Debug commands
%%-----------------------------------------------------------------
@@ -294,6 +308,8 @@ mfa(Name, {debug, {Func, Arg2}}) ->
{sys, Func, [Name, Arg2]};
mfa(Name, {change_code, Mod, Vsn, Extra}) ->
{sys, change_code, [Name, Mod, Vsn, Extra]};
+mfa(Name, {terminate, Reason}) ->
+ {sys, terminate, [Name, Reason]};
mfa(Name, Atom) ->
{sys, Atom, [Name]}.
@@ -309,7 +325,7 @@ mfa(Name, Req, Timeout) ->
%% Returns: This function *never* returns! It calls the function
%% Module:system_continue(Parent, NDebug, Misc)
%% there the process continues the execution or
-%% Module:system_terminate(Raeson, Parent, Debug, Misc) if
+%% Module:system_terminate(Reason, Parent, Debug, Misc) if
%% the process should terminate.
%% The Module must export system_continue/3, system_terminate/4
%% and format_status/2 for status information.
@@ -335,7 +351,10 @@ handle_system_msg(SysState, Msg, From, Parent, Mod, Debug, Misc, Hib) ->
suspend_loop(suspended, Parent, Mod, NDebug, NMisc, Hib);
{running, Reply, NDebug, NMisc} ->
_ = gen:reply(From, Reply),
- Mod:system_continue(Parent, NDebug, NMisc)
+ Mod:system_continue(Parent, NDebug, NMisc);
+ {{terminating, Reason}, Reply, NDebug, NMisc} ->
+ _ = gen:reply(From, Reply),
+ Mod:system_terminate(Reason, Parent, NDebug, NMisc)
end.
%%-----------------------------------------------------------------
@@ -415,6 +434,8 @@ do_cmd(SysState, get_status, Parent, Mod, Debug, Misc) ->
do_cmd(SysState, {debug, What}, _Parent, _Mod, Debug, Misc) ->
{Res, NDebug} = debug_cmd(What, Debug),
{SysState, Res, NDebug, Misc};
+do_cmd(_, {terminate, Reason}, _Parent, _Mod, Debug, Misc) ->
+ {{terminating, Reason}, ok, Debug, Misc};
do_cmd(suspended, {change_code, Module, Vsn, Extra}, _Parent,
Mod, Debug, Misc) ->
{Res, NMisc} = do_change_code(Mod, Module, Vsn, Extra, Misc),
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) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 10:32:12 +0000