1------------------------------------------------------------------------------
2--                                                                          --
3--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
4--                                                                          --
5--           S Y S T E M . I N T E R R U P T _ M A N A G E M E N T          --
6--                                                                          --
7--                                  B o d y                                 --
8--                                                                          --
9--         Copyright (C) 1992-2002, 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 2,  or (at your option) any later ver- --
14-- sion. GNARL 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.  See the GNU General Public License --
17-- for  more details.  You should have  received  a copy of the GNU General --
18-- Public License  distributed with GNARL; see file COPYING.  If not, write --
19-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
20-- MA 02111-1307, USA.                                                      --
21--                                                                          --
22-- As a special exception,  if other files  instantiate  generics from this --
23-- unit, or you link  this unit with other files  to produce an executable, --
24-- this  unit  does not  by itself cause  the resulting  executable  to  be --
25-- covered  by the  GNU  General  Public  License.  This exception does not --
26-- however invalidate  any other reasons why  the executable file  might be --
27-- covered by the  GNU Public License.                                      --
28--                                                                          --
29-- GNARL was developed by the GNARL team at Florida State University.       --
30-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
31--                                                                          --
32------------------------------------------------------------------------------
33
34--  This is a OpenVMS/Alpha version of this package.
35
36--  PLEASE DO NOT add any dependences on other packages.
37--  This package is designed to work with or without tasking support.
38
39--  See the other warnings in the package specification before making
40--  any modifications to this file.
41
42with System.OS_Interface;
43--  used for various Constants, Signal and types
44
45package body System.Interrupt_Management is
46
47   use System.OS_Interface;
48   use type unsigned_long;
49
50   ---------------------------
51   -- Initialize_Interrupts --
52   ---------------------------
53
54   procedure Initialize_Interrupts is
55      Status : Cond_Value_Type;
56
57   begin
58      Sys_Crembx
59        (Status => Status,
60         Prmflg => False,
61         Chan   => Rcv_Interrupt_Chan,
62         Maxmsg => Interrupt_ID'Size,
63         Bufquo => Interrupt_Bufquo,
64         Lognam => "GNAT_Interrupt_Mailbox",
65         Flags  => CMB_M_READONLY);
66
67      pragma Assert ((Status and 1) = 1);
68
69      Sys_Assign
70        (Status => Status,
71         Devnam => "GNAT_Interrupt_Mailbox",
72         Chan   => Snd_Interrupt_Chan,
73         Flags  => AGN_M_WRITEONLY);
74
75      pragma Assert ((Status and 1) = 1);
76   end Initialize_Interrupts;
77
78begin
79   --  Unused
80
81   Abort_Task_Interrupt := Interrupt_ID_0;
82
83   Reserve := Reserve or Keep_Unmasked or Keep_Masked;
84
85   Reserve (Interrupt_ID_0) := True;
86
87   Initialize_Interrupts;
88end System.Interrupt_Management;
89