------------------------------------------------------------------------------ -- -- -- 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;