-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
-- --
-- GNARL is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNARL was developed by the GNARL team at Florida State University. --
-- Extensive contributions were provided by Ada Core Technologies, Inc. --
-- --
------------------------------------------------------------------------------
--- This is a OpenVMS/Alpha version of this package.
-
-with System.OS_Interface;
--- used for various Constants, Signal and types
+-- This is a OpenVMS/Alpha version of this package
package body System.Interrupt_Management is
- use System.OS_Interface;
- use type unsigned_long;
-
-begin
- Abort_Task_Interrupt := Interrupt_ID_0;
- -- Unused
+ ----------------
+ -- Initialize --
+ ----------------
- Reserve := Reserve or Keep_Unmasked or Keep_Masked;
+ Initialized : Boolean := False;
- Reserve (Interrupt_ID_0) := True;
-
- declare
+ procedure Initialize is
+ use System.OS_Interface;
Status : Cond_Value_Type;
+
begin
+ if Initialized then
+ return;
+ end if;
+
+ Initialized := True;
+ Abort_Task_Interrupt := Interrupt_ID_0;
+ -- Unused
+
+ Reserve := Reserve or Keep_Unmasked or Keep_Masked;
+ Reserve (Interrupt_ID_0) := True;
+
Sys_Crembx
(Status => Status,
- Prmflg => False,
+ Prmflg => 0,
Chan => Rcv_Interrupt_Chan,
Maxmsg => Interrupt_ID'Size,
Bufquo => Interrupt_Bufquo,
Lognam => "GNAT_Interrupt_Mailbox",
Flags => CMB_M_READONLY);
-
pragma Assert ((Status and 1) = 1);
Sys_Assign
Devnam => "GNAT_Interrupt_Mailbox",
Chan => Snd_Interrupt_Chan,
Flags => AGN_M_WRITEONLY);
-
pragma Assert ((Status and 1) = 1);
- end;
+ end Initialize;
+
end System.Interrupt_Management;
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