aboutsummaryrefslogtreecommitdiffstats
path: root/lib/ic/examples/erl-genserv/rmod_random_impl.erl
blob: 83c1dad61f4a50748d2c1bdc7d80b03a8d00bf0c (plain) (blame)
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
%%
%% %CopyrightBegin%
%% 
%% Copyright Ericsson AB 1998-2009. 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.
%% 
%% %CopyrightEnd%
%%
%%
-module('rmod_random_impl').
-export([init/1, terminate/2, start/0]).
-export([produce/1,init/4]).


init(Env) ->
    {ok, []}.

terminate(From, Reason) ->
    ok.


produce(_Random)  ->
    case catch random:uniform() of
	{'EXIT',_} ->
	    true;
	RUnif ->
            {reply,RUnif,[]}
     end.


init(_Random,S1,S2,S3)  ->
    case catch random:seed(S1,S2,S3) of
	{'EXIT',_} ->
	    true;
	_ ->
            {noreply,[]}
    end.


%% This starts up the random number server
start() ->
    %% Start the gen server
    {ok,Pid} = rmod_random:oe_create([],{local,'rmod_random_impl'}),
    true.