-
Notifications
You must be signed in to change notification settings - Fork 3
/
elips_utils.erl
67 lines (58 loc) · 1.69 KB
/
elips_utils.erl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
%%%-------------------------------------------------------------------
%%% @author <vjache@gmail.com>
%%% @copyright (C) 2011, Vyacheslav Vorobyov. All Rights Reserved.
%%% Licensed under the Apache License, Version 2.0 (the "License");
%%% you may not use this file except in compliance with the License.
%%% You may obtain a copy of the License at
%%%
%%% http://www.apache.org/licenses/LICENSE-2.0
%%%
%%% Unless required by applicable law or agreed to in writing, software
%%% distributed under the License is distributed on an "AS IS" BASIS,
%%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%%% See the License for the specific language governing permissions and
%%% limitations under the License.
%%%
%%% @doc
%%% TODO: Document it.
%%% @end
%%% Created : Feb 21, 2012
%%%-------------------------------------------------------------------------------
-module(elips_utils).
%%
%% Include files
%%
%%
%% Exported Functions
%%
-export([monitor_name/1]).
%%
%% API Functions
%%
monitor_name(Reg) ->
CallaerPid=self(),
spawn_link(
fun()->
monitor_name_init(Reg, CallaerPid)
end).
%%
%% Local Functions
%%
resolve({local, Name}) ->
whereis(Name);
resolve({global, Name}) ->
global:whereis_name(Name).
monitor_name_init(Reg, Pid) when is_pid(Pid) ->
process_flag(trap_exit, true),
monitor_name_loop(Reg, Pid, undefined).
monitor_name_loop(Reg, Pid, undefined) ->
timer:sleep(500),
monitor_name_loop(Reg, Pid, resolve(Reg));
monitor_name_loop(Reg, Pid, Obj) ->
Pid ! {reg, Reg},
link(Obj),
receive
{'EXIT', Obj, _Reason} ->
Pid ! {unreg, Reg}
end,
monitor_name_loop(Reg, Pid, undefined).