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-rw-r--r--lib/asn1/src/asn1ct_name.erl89
1 files changed, 41 insertions, 48 deletions
diff --git a/lib/asn1/src/asn1ct_name.erl b/lib/asn1/src/asn1ct_name.erl
index a6aa4255cc..3ab6f7b0ed 100644
--- a/lib/asn1/src/asn1ct_name.erl
+++ b/lib/asn1/src/asn1ct_name.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1997-2009. All Rights Reserved.
+%% Copyright Ericsson AB 1997-2012. 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
@@ -20,8 +20,7 @@
-module(asn1ct_name).
%%-compile(export_all).
--export([name_server_loop/1,
- start/0,
+-export([start/0,
stop/0,
push/1,
pop/1,
@@ -35,38 +34,50 @@
new/1]).
start() ->
- start_server(asn1_ns, asn1ct_name,name_server_loop,[[]]).
+ Parent = self(),
+ case get(?MODULE) of
+ undefined ->
+ put(?MODULE, spawn_link(fun() ->
+ Ref = monitor(process, Parent),
+ name_server_loop({Ref,Parent},[])
+ end)),
+ ok;
+ _Pid ->
+ already_started
+ end.
-stop() -> stop_server(asn1_ns).
+stop() ->
+ req(stop),
+ erase(?MODULE).
-name_server_loop(Vars) ->
+name_server_loop({Ref, Parent} = Monitor,Vars) ->
%% io:format("name -- ~w~n",[Vars]),
receive
{From,{current,Variable}} ->
- From ! {asn1_ns,get_curr(Vars,Variable)},
- name_server_loop(Vars);
+ From ! {?MODULE,get_curr(Vars,Variable)},
+ name_server_loop(Monitor,Vars);
{From,{pop,Variable}} ->
- From ! {asn1_ns,done},
- name_server_loop(pop_var(Vars,Variable));
+ From ! {?MODULE,done},
+ name_server_loop(Monitor,pop_var(Vars,Variable));
{From,{push,Variable}} ->
- From ! {asn1_ns,done},
- name_server_loop(push_var(Vars,Variable));
+ From ! {?MODULE,done},
+ name_server_loop(Monitor,push_var(Vars,Variable));
{From,{delete,Variable}} ->
- From ! {asn1_ns,done},
- name_server_loop(delete_var(Vars,Variable));
+ From ! {?MODULE,done},
+ name_server_loop(Monitor,delete_var(Vars,Variable));
{From,{new,Variable}} ->
- From ! {asn1_ns,done},
- name_server_loop(new_var(Vars,Variable));
+ From ! {?MODULE,done},
+ name_server_loop(Monitor,new_var(Vars,Variable));
{From,{prev,Variable}} ->
- From ! {asn1_ns,get_prev(Vars,Variable)},
- name_server_loop(Vars);
+ From ! {?MODULE,get_prev(Vars,Variable)},
+ name_server_loop(Monitor,Vars);
{From,{next,Variable}} ->
- From ! {asn1_ns,get_next(Vars,Variable)},
- name_server_loop(Vars);
+ From ! {?MODULE,get_next(Vars,Variable)},
+ name_server_loop(Monitor,Vars);
+ {'DOWN', Ref, process, Parent, Reason} ->
+ exit(Reason);
{From,stop} ->
- unregister(asn1_ns),
- From ! {asn1_ns,stopped},
- exit(normal)
+ From ! {?MODULE,stopped}
end.
active(V) ->
@@ -76,12 +87,16 @@ active(V) ->
end.
req(Req) ->
- asn1_ns ! {self(), Req},
- receive {asn1_ns, Reply} -> Reply end.
+ get(?MODULE) ! {self(), Req},
+ receive
+ {?MODULE, Reply} -> Reply
+ after 5000 ->
+ exit(name_server_timeout)
+ end.
pop(V) -> req({pop,V}).
push(V) -> req({push,V}).
-clear() -> req(stop), start().
+clear() -> stop(), start().
curr(V) -> req({current,V}).
new(V) -> req({new,V}).
delete(V) -> req({delete,V}).
@@ -209,25 +224,3 @@ get_next(Vars,Variable) ->
_ ->
none
end.
-
-
-stop_server(Name) ->
- stop_server(Name, whereis(Name)).
-stop_server(_Name, undefined) -> stopped;
-stop_server(Name, _Pid) ->
- Name ! {self(), stop},
- receive {Name, _} -> stopped end.
-
-
-start_server(Name,Mod,Fun,Args) ->
- case whereis(Name) of
- undefined ->
- case catch register(Name, spawn(Mod,Fun, Args)) of
- {'EXIT',{badarg,_}} ->
- start_server(Name,Mod,Fun,Args);
- _ ->
- ok
- end;
- _Pid ->
- already_started
- end.