File : s-tpopsp-vxworks-tls.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
4 -- --
5 -- SYSTEM.TASK_PRIMITIVES.OPERATIONS.SPECIFIC --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNARL was developed by the GNARL team at Florida State University. --
28 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- This is a VxWorks version of this package using Thread_Local_Storage
33 -- support (VxWorks 6.6 and higher). The implementation is based on __threads
34 -- support.
35
36 separate (System.Task_Primitives.Operations)
37 package body Specific is
38
39 ATCB : aliased Task_Id := null;
40 -- Ada Task_Id associated with a thread
41 pragma Thread_Local_Storage (ATCB);
42
43 ----------------
44 -- Initialize --
45 ----------------
46
47 procedure Initialize is
48 begin
49 null;
50 end Initialize;
51
52 -------------------
53 -- Is_Valid_Task --
54 -------------------
55
56 function Is_Valid_Task return Boolean is
57 begin
58 return ATCB /= Null_Task;
59 end Is_Valid_Task;
60
61 ---------
62 -- Set --
63 ---------
64
65 procedure Set (Self_Id : Task_Id) is
66 begin
67 ATCB := Self_Id;
68 end Set;
69
70 ----------
71 -- Self --
72 ----------
73
74 function Self return Task_Id is
75 begin
76 return ATCB;
77 end Self;
78
79 end Specific;