File : s-tpinop.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
4 -- --
5 -- SYSTEM.TASK_PRIMITIVES.INTERRUPT_OPERATIONS --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1998-2009, Free Software Foundation, Inc. --
10 -- --
11 -- GNARL 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 package body System.Task_Primitives.Interrupt_Operations is
33
34 -- ??? The VxWorks version of System.Interrupt_Management needs to access
35 -- this array, but due to elaboration problems, it can't with this
36 -- package directly, so we export this variable for now.
37
38 Interrupt_ID_Map : array (IM.Interrupt_ID) of ST.Task_Id;
39 pragma Export (Ada, Interrupt_ID_Map,
40 "system__task_primitives__interrupt_operations__interrupt_id_map");
41
42 ----------------------
43 -- Get_Interrupt_ID --
44 ----------------------
45
46 function Get_Interrupt_ID (T : ST.Task_Id) return IM.Interrupt_ID is
47 use type ST.Task_Id;
48
49 begin
50 for Interrupt in IM.Interrupt_ID loop
51 if Interrupt_ID_Map (Interrupt) = T then
52 return Interrupt;
53 end if;
54 end loop;
55
56 raise Program_Error;
57 end Get_Interrupt_ID;
58
59 -----------------
60 -- Get_Task_Id --
61 -----------------
62
63 function Get_Task_Id (Interrupt : IM.Interrupt_ID) return ST.Task_Id is
64 begin
65 return Interrupt_ID_Map (Interrupt);
66 end Get_Task_Id;
67
68 ----------------------
69 -- Set_Interrupt_ID --
70 ----------------------
71
72 procedure Set_Interrupt_ID (Interrupt : IM.Interrupt_ID; T : ST.Task_Id) is
73 begin
74 Interrupt_ID_Map (Interrupt) := T;
75 end Set_Interrupt_ID;
76
77 end System.Task_Primitives.Interrupt_Operations;