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-rw-r--r--lib/stdlib/src/gen.erl113
-rw-r--r--lib/stdlib/src/gen_event.erl13
-rw-r--r--lib/stdlib/src/gen_fsm.erl6
-rw-r--r--lib/stdlib/src/gen_server.erl12
-rw-r--r--lib/stdlib/src/proc_lib.erl52
-rw-r--r--lib/stdlib/src/sys.erl27
6 files changed, 162 insertions, 61 deletions
diff --git a/lib/stdlib/src/gen.erl b/lib/stdlib/src/gen.erl
index 63116fa16e..6d7ca3d75c 100644
--- a/lib/stdlib/src/gen.erl
+++ b/lib/stdlib/src/gen.erl
@@ -26,7 +26,7 @@
%%% The standard behaviour should export init_it/6.
%%%-----------------------------------------------------------------
-export([start/5, start/6, debug_options/1,
- call/3, call/4, reply/2]).
+ call/3, call/4, reply/2, stop/1, stop/3]).
-export([init_it/6, init_it/7]).
@@ -145,56 +145,10 @@ init_it2(GenMod, Starter, Parent, Name, Mod, Args, Options) ->
call(Process, Label, Request) ->
call(Process, Label, Request, ?default_timeout).
-%% Local or remote by pid
-call(Pid, Label, Request, Timeout)
- when is_pid(Pid), Timeout =:= infinity;
- is_pid(Pid), is_integer(Timeout), Timeout >= 0 ->
- do_call(Pid, Label, Request, Timeout);
-%% Local by name
-call(Name, Label, Request, Timeout)
- when is_atom(Name), Timeout =:= infinity;
- is_atom(Name), is_integer(Timeout), Timeout >= 0 ->
- case whereis(Name) of
- Pid when is_pid(Pid) ->
- do_call(Pid, Label, Request, Timeout);
- undefined ->
- exit(noproc)
- end;
-%% Global by name
call(Process, Label, Request, Timeout)
- when ((tuple_size(Process) == 2 andalso element(1, Process) == global)
- orelse
- (tuple_size(Process) == 3 andalso element(1, Process) == via))
- andalso
- (Timeout =:= infinity orelse (is_integer(Timeout) andalso Timeout >= 0)) ->
- case where(Process) of
- Pid when is_pid(Pid) ->
- Node = node(Pid),
- try do_call(Pid, Label, Request, Timeout)
- catch
- exit:{nodedown, Node} ->
- %% A nodedown not yet detected by global,
- %% pretend that it was.
- exit(noproc)
- end;
- undefined ->
- exit(noproc)
- end;
-%% Local by name in disguise
-call({Name, Node}, Label, Request, Timeout)
- when Node =:= node(), Timeout =:= infinity;
- Node =:= node(), is_integer(Timeout), Timeout >= 0 ->
- call(Name, Label, Request, Timeout);
-%% Remote by name
-call({_Name, Node}=Process, Label, Request, Timeout)
- when is_atom(Node), Timeout =:= infinity;
- is_atom(Node), is_integer(Timeout), Timeout >= 0 ->
- if
- node() =:= nonode@nohost ->
- exit({nodedown, Node});
- true ->
- do_call(Process, Label, Request, Timeout)
- end.
+ when Timeout =:= infinity; is_integer(Timeout), Timeout >= 0 ->
+ Fun = fun(Pid) -> do_call(Pid, Label, Request, Timeout) end,
+ do_for_proc(Process, Fun).
do_call(Process, Label, Request, Timeout) ->
try erlang:monitor(process, Process) of
@@ -276,6 +230,65 @@ reply({To, Tag}, Reply) ->
Msg = {Tag, Reply},
try To ! Msg catch _:_ -> Msg end.
+%%-----------------------------------------------------------------
+%% Syncronously stop a generic process
+%%-----------------------------------------------------------------
+stop(Process) ->
+ stop(Process, normal, infinity).
+
+stop(Process, Reason, Timeout)
+ when Timeout =:= infinity; is_integer(Timeout), Timeout >= 0 ->
+ Fun = fun(Pid) -> proc_lib:stop(Pid, Reason, Timeout) end,
+ do_for_proc(Process, Fun).
+
+%%-----------------------------------------------------------------
+%% Map different specifications of a process to either Pid or
+%% {Name,Node}. Execute the given Fun with the process as only
+%% argument.
+%% -----------------------------------------------------------------
+
+%% Local or remote by pid
+do_for_proc(Pid, Fun) when is_pid(Pid) ->
+ Fun(Pid);
+%% Local by name
+do_for_proc(Name, Fun) when is_atom(Name) ->
+ case whereis(Name) of
+ Pid when is_pid(Pid) ->
+ Fun(Pid);
+ undefined ->
+ exit(noproc)
+ end;
+%% Global by name
+do_for_proc(Process, Fun)
+ when ((tuple_size(Process) == 2 andalso element(1, Process) == global)
+ orelse
+ (tuple_size(Process) == 3 andalso element(1, Process) == via)) ->
+ case where(Process) of
+ Pid when is_pid(Pid) ->
+ Node = node(Pid),
+ try Fun(Pid)
+ catch
+ exit:{nodedown, Node} ->
+ %% A nodedown not yet detected by global,
+ %% pretend that it was.
+ exit(noproc)
+ end;
+ undefined ->
+ exit(noproc)
+ end;
+%% Local by name in disguise
+do_for_proc({Name, Node}, Fun) when Node =:= node() ->
+ do_for_proc(Name, Fun);
+%% Remote by name
+do_for_proc({_Name, Node} = Process, Fun) when is_atom(Node) ->
+ if
+ node() =:= nonode@nohost ->
+ exit({nodedown, Node});
+ true ->
+ Fun(Process)
+ end.
+
+
%%%-----------------------------------------------------------------
%%% Misc. functions.
%%%-----------------------------------------------------------------
diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl
index bb0ff46268..934b112f6f 100644
--- a/lib/stdlib/src/gen_event.erl
+++ b/lib/stdlib/src/gen_event.erl
@@ -31,8 +31,8 @@
%%% Modified by Martin - uses proc_lib, sys and gen!
--export([start/0, start/1, start_link/0, start_link/1, stop/1, notify/2,
- sync_notify/2,
+-export([start/0, start/1, start_link/0, start_link/1, stop/1, stop/3,
+ notify/2, sync_notify/2,
add_handler/3, add_sup_handler/3, delete_handler/3, swap_handler/3,
swap_sup_handler/3, which_handlers/1, call/3, call/4, wake_hib/4]).
@@ -193,7 +193,11 @@ swap_sup_handler(M, {H1, A1}, {H2, A2}) ->
which_handlers(M) -> rpc(M, which_handlers).
-spec stop(emgr_ref()) -> 'ok'.
-stop(M) -> rpc(M, stop).
+stop(M) ->
+ gen:stop(M).
+
+stop(M, Reason, Timeout) ->
+ gen:stop(M, Reason, Timeout).
rpc(M, Cmd) ->
{ok, Reply} = gen:call(M, self(), Cmd, infinity),
@@ -292,9 +296,6 @@ handle_msg(Msg, Parent, ServerName, MSL, Debug) ->
Args2, MSL, Sup, ServerName),
?reply(Reply),
loop(Parent, ServerName, MSL1, Debug, Hib);
- {From, Tag, stop} ->
- catch terminate_server(normal, Parent, MSL, ServerName),
- ?reply(ok);
{From, Tag, which_handlers} ->
?reply(the_handlers(MSL)),
loop(Parent, ServerName, MSL, Debug, false);
diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl
index 56137cde13..29b1d80088 100644
--- a/lib/stdlib/src/gen_fsm.erl
+++ b/lib/stdlib/src/gen_fsm.erl
@@ -106,6 +106,7 @@
-export([start/3, start/4,
start_link/3, start_link/4,
+ stop/1, stop/3,
send_event/2, sync_send_event/2, sync_send_event/3,
send_all_state_event/2,
sync_send_all_state_event/2, sync_send_all_state_event/3,
@@ -197,6 +198,11 @@ start_link(Mod, Args, Options) ->
start_link(Name, Mod, Args, Options) ->
gen:start(?MODULE, link, Name, Mod, Args, Options).
+stop(Name) ->
+ gen:stop(Name).
+
+stop(Name, Reason, Timeout) ->
+ gen:stop(Name, Reason, Timeout).
send_event({global, Name}, Event) ->
catch global:send(Name, {'$gen_event', Event}),
diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl
index 22acdf10b7..9794c73cc2 100644
--- a/lib/stdlib/src/gen_server.erl
+++ b/lib/stdlib/src/gen_server.erl
@@ -88,6 +88,7 @@
%% API
-export([start/3, start/4,
start_link/3, start_link/4,
+ stop/1, stop/3,
call/2, call/3,
cast/2, reply/2,
abcast/2, abcast/3,
@@ -177,6 +178,17 @@ start_link(Name, Mod, Args, Options) ->
%% -----------------------------------------------------------------
+%% Stop a generic server and wait for it to terminate.
+%% If the server is located at another node, that node will
+%% be monitored.
+%% -----------------------------------------------------------------
+stop(Name) ->
+ gen:stop(Name).
+
+stop(Name, Reason, Timeout) ->
+ gen:stop(Name, Reason, Timeout).
+
+%% -----------------------------------------------------------------
%% Make a call to a generic server.
%% If the server is located at another node, that node will
%% be monitored.
diff --git a/lib/stdlib/src/proc_lib.erl b/lib/stdlib/src/proc_lib.erl
index 1eb6fc2e86..c925e70613 100644
--- a/lib/stdlib/src/proc_lib.erl
+++ b/lib/stdlib/src/proc_lib.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
@@ -30,7 +30,8 @@
hibernate/3,
init_ack/1, init_ack/2,
init_p/3,init_p/5,format/1,format/2,initial_call/1,
- translate_initial_call/1]).
+ translate_initial_call/1,
+ stop/1, stop/3]).
%% Internal exports.
-export([wake_up/3]).
@@ -750,3 +751,50 @@ format_tag(Tag, Data) ->
modifier(latin1) -> "";
modifier(_) -> "t".
+
+
+%%% -----------------------------------------------------------
+%%% Stop a process and wait for it to terminate
+%%% -----------------------------------------------------------
+-spec stop(Process) -> 'ok' when
+ Process :: pid() | RegName | {RegName,node()},
+ RegName :: atom().
+stop(Process) ->
+ stop(Process, normal, infinity).
+
+-spec stop(Process, Reason, Timeout) -> 'ok' when
+ Process :: pid() | RegName | {RegName,node()},
+ RegName :: atom(),
+ Reason :: term(),
+ Timeout :: timeout().
+stop(Process, Reason, Timeout) ->
+ {Pid, Mref} = erlang:spawn_monitor(do_stop(Process, Reason)),
+ receive
+ {'DOWN', Mref, _, _, Reason} ->
+ ok;
+ {'DOWN', Mref, _, _, {noproc,{sys,terminate,_}}} ->
+ exit(noproc);
+ {'DOWN', Mref, _, _, CrashReason} ->
+ exit(CrashReason)
+ after Timeout ->
+ exit(Pid, kill),
+ receive
+ {'DOWN', Mref, _, _, _} ->
+ exit(timeout)
+ end
+ end.
+
+-spec do_stop(Process, Reason) -> Fun when
+ Process :: pid() | RegName | {RegName,node()},
+ RegName :: atom(),
+ Reason :: term(),
+ Fun :: fun(() -> no_return()).
+do_stop(Process, Reason) ->
+ fun() ->
+ Mref = erlang:monitor(process, Process),
+ ok = sys:terminate(Process, Reason, infinity),
+ receive
+ {'DOWN', Mref, _, _, ExitReason} ->
+ exit(ExitReason)
+ end
+ end.
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),
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 14:33:39 +0000