botan.entropy.es_beos source code

1 /**
2 * BeOS EntropySource
3 * 
4 * Copyright:
5 * (C) 1999-2008 Jack Lloyd
6 * (C) 2014-2015 Etienne Cimon
7 *
8 * License:
9 * Botan is released under the Simplified BSD License (see LICENSE.md)
10 */
11 module botan.entropy.es_beos;
12 
13 import botan.constants;
14 static if (BOTAN_HAS_ENTROPY_SRC_BEOS):
15 import botan.entropy.entropy_src;
16 
17 /**
18 * BeOS Entropy Source
19 */
20 final class BeOSEntropySource : EntropySource
21 {
22     private:
23         @property string name() const { return "BeOS Statistics"; }
24 
25     /**
26     * BeOS entropy poll
27     */
28     void poll(ref EntropyAccumulator accum)
29     {
30         system_info info_sys;
31         get_system_info(&info_sys);
32         accum.add(info_sys, 2);
33         
34         key_info info_key; // current state of the keyboard
35         get_key_info(&info_key);
36         accum.add(info_key, 0);
37         
38         team_info info_team;
39         int32 cookie_team = 0;
40         
41         while (get_next_team_info(&cookie_team, &info_team) == B_OK)
42         {
43             accum.add(info_team, 2);
44             
45             team_id id = info_team.team;
46             int32 cookie = 0;
47             
48             thread_info info_thr;
49             while (get_next_thread_info(id, &cookie, &info_thr) == B_OK)
50                 accum.add(info_thr, 1);
51             
52             cookie = 0;
53             image_info info_img;
54             while (get_next_image_info(id, &cookie, &info_img) == B_OK)
55                 accum.add(info_img, 1);
56             
57             cookie = 0;
58             sem_info info_sem;
59             while (get_next_sem_info(id, &cookie, &info_sem) == B_OK)
60                 accum.add(info_sem, 1);
61             
62             cookie = 0;
63             area_info info_area;
64             while (get_next_area_info(id, &cookie, &info_area) == B_OK)
65                 accum.add(info_area, 2);
66             
67             if (accum.pollingGoalAchieved())
68                 break;
69         }
70     }
71 
72 }