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Diffstat (limited to 'gcc-4.7/gcc/ada/a-interr.adb')
-rw-r--r-- | gcc-4.7/gcc/ada/a-interr.adb | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/ada/a-interr.adb b/gcc-4.7/gcc/ada/a-interr.adb new file mode 100644 index 000000000..cd8ca0de2 --- /dev/null +++ b/gcc-4.7/gcc/ada/a-interr.adb @@ -0,0 +1,123 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT 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) 1995-2010, AdaCore -- +-- -- +-- GNAT 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 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. -- +-- -- +-- 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. -- +-- -- +------------------------------------------------------------------------------ + +with Ada.Unchecked_Conversion; + +package body Ada.Interrupts is + + package SI renames System.Interrupts; + + function To_System is new Ada.Unchecked_Conversion + (Parameterless_Handler, SI.Parameterless_Handler); + + function To_Ada is new Ada.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 : 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; |