| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS -- |
| -- -- |
| -- A D A . I N T E R R U P T S -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1991-1994, Florida State University -- |
| -- Copyright (C) 1995-2003, Ada Core Technologies -- |
| -- -- |
| -- 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- -- |
| -- 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. -- |
| -- -- |
| -- 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. -- |
| -- -- |
| -- GNARL was developed by the GNARL team at Florida State University. -- |
| -- Extensive contributions were provided by Ada Core Technologies, Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with System.Interrupts; |
| -- used for Interrupt_ID |
| -- Parameterless_Handler |
| -- Is_Reserved |
| -- Is_Handler_Attached |
| -- Current_Handler |
| -- Attach_Handler |
| -- Exchange_Handler |
| -- Detach_Handler |
| -- Reference |
| |
| with Unchecked_Conversion; |
| |
| package body Ada.Interrupts is |
| |
| package SI renames System.Interrupts; |
| |
| function To_System is new Unchecked_Conversion |
| (Parameterless_Handler, SI.Parameterless_Handler); |
| |
| function To_Ada is new Unchecked_Conversion |
| (SI.Parameterless_Handler, Parameterless_Handler); |
| |
| -------------------- |
| -- Attach_Handler -- |
| -------------------- |
| |
| procedure Attach_Handler |
| (New_Handler : Parameterless_Handler; |
| Interrupt : Interrupt_ID) |
| is |
| begin |
| SI.Attach_Handler |
| (To_System (New_Handler), SI.Interrupt_ID (Interrupt), False); |
| end Attach_Handler; |
| |
| --------------------- |
| -- Current_Handler -- |
| --------------------- |
| |
| function Current_Handler |
| (Interrupt : Interrupt_ID) |
| return Parameterless_Handler |
| is |
| begin |
| return To_Ada (SI.Current_Handler (SI.Interrupt_ID (Interrupt))); |
| end Current_Handler; |
| |
| -------------------- |
| -- Detach_Handler -- |
| -------------------- |
| |
| procedure Detach_Handler (Interrupt : in Interrupt_ID) is |
| begin |
| SI.Detach_Handler (SI.Interrupt_ID (Interrupt), False); |
| end Detach_Handler; |
| |
| ---------------------- |
| -- Exchange_Handler -- |
| ---------------------- |
| |
| procedure Exchange_Handler |
| (Old_Handler : out Parameterless_Handler; |
| New_Handler : Parameterless_Handler; |
| Interrupt : Interrupt_ID) |
| is |
| H : SI.Parameterless_Handler; |
| |
| begin |
| SI.Exchange_Handler |
| (H, To_System (New_Handler), |
| SI.Interrupt_ID (Interrupt), False); |
| Old_Handler := To_Ada (H); |
| end Exchange_Handler; |
| |
| ----------------- |
| -- Is_Attached -- |
| ----------------- |
| |
| function Is_Attached (Interrupt : Interrupt_ID) return Boolean is |
| begin |
| return SI.Is_Handler_Attached (SI.Interrupt_ID (Interrupt)); |
| end Is_Attached; |
| |
| ----------------- |
| -- Is_Reserved -- |
| ----------------- |
| |
| function Is_Reserved (Interrupt : Interrupt_ID) return Boolean is |
| begin |
| return SI.Is_Reserved (SI.Interrupt_ID (Interrupt)); |
| end Is_Reserved; |
| |
| --------------- |
| -- Reference -- |
| --------------- |
| |
| function Reference (Interrupt : Interrupt_ID) return System.Address is |
| begin |
| return SI.Reference (SI.Interrupt_ID (Interrupt)); |
| end Reference; |
| |
| end Ada.Interrupts; |
