1------------------------------------------------------------------------------ 2-- -- 3-- GNAT 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) 1992-2009, 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-- As a special exception under Section 7 of GPL version 3, you are granted -- 19-- additional permissions described in the GCC Runtime Library Exception, -- 20-- version 3.1, as published by the Free Software Foundation. -- 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 OpenVMS/Alpha version of this package 33 34package body System.Interrupt_Management is 35 36 ---------------- 37 -- Initialize -- 38 ---------------- 39 40 Initialized : Boolean := False; 41 42 procedure Initialize is 43 use System.OS_Interface; 44 Status : Cond_Value_Type; 45 46 begin 47 if Initialized then 48 return; 49 end if; 50 51 Initialized := True; 52 Abort_Task_Interrupt := Interrupt_ID_0; 53 -- Unused 54 55 Reserve := Reserve or Keep_Unmasked or Keep_Masked; 56 Reserve (Interrupt_ID_0) := True; 57 58 Sys_Crembx 59 (Status => Status, 60 Prmflg => 0, 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 pragma Assert ((Status and 1) = 1); 67 68 Sys_Assign 69 (Status => Status, 70 Devnam => "GNAT_Interrupt_Mailbox", 71 Chan => Snd_Interrupt_Chan, 72 Flags => AGN_M_WRITEONLY); 73 pragma Assert ((Status and 1) = 1); 74 end Initialize; 75 76end System.Interrupt_Management; 77