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------------------------------------------------------------------------------
-- --
-- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
-- --
-- S Y S T E M . I N T E R R U P T S --
-- --
-- S p e c --
-- (Compiler Interface) --
-- --
-- $Revision: 1.8 $ --
-- --
-- Copyright (C) 1992-1997, 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- --
-- 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. It is --
-- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
-- State University (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
-- Note: the compiler generates direct calls to this interface, via Rtsfind.
-- Any changes to this interface may require corresponding compiler changes.
with System.Tasking;
with Ada.Interrupts;
package System.Interrupts is
-- Routines needed for Ada.Interrupts
-- Attempt to attach a Handler to an Interrupt to which an Entry is
-- already bound will raise a Program_Error.
function Is_Reserved
(Interrupt : Ada.Interrupts.Interrupt_ID)
return Boolean;
function Is_Attached
(Interrupt : Ada.Interrupts.Interrupt_ID)
return Boolean;
function Current_Handler
(Interrupt : Ada.Interrupts.Interrupt_ID)
return Ada.Interrupts.Parameterless_Handler;
procedure Attach_Handler
(New_Handler : Ada.Interrupts.Parameterless_Handler;
Interrupt : Ada.Interrupts.Interrupt_ID;
Static : Boolean := False);
-- Calling this procedure with New_Handler = null and Static = True
-- means that we want to Detach the current handler regardless of
-- the previous handler's binding status (ie. do not care if
-- it is a dynamic or static handler).
procedure Exchange_Handler
(Old_Handler : out Ada.Interrupts.Parameterless_Handler;
New_Handler : Ada.Interrupts.Parameterless_Handler;
Interrupt : Ada.Interrupts.Interrupt_ID;
Static : Boolean := False);
-- Calling this procedure with New_Handler = null and Static = True
-- means that we want to Detach the current handler regardless of
-- the previous handler's binding status (ie. do not care if
-- it is a dynamic or static handler).
procedure Detach_Handler
(Interrupt : Ada.Interrupts.Interrupt_ID;
Static : boolean := False);
-- Calling this procedure with Static = True means that we want to Detach
-- the current handler regardless of the previous handler's binding status
-- (i.e. we do not care if it is a dynamic or static handler).
function Reference
(Interrupt : Ada.Interrupts.Interrupt_ID)
return System.Address;
-- Routines needed to implement pragmas Interrupt_Handler, Attach_Handler.
procedure Register_Interrupt_Handler (Handler_Addr : System.Address);
-- This routine should be called by the compiler to allow the
-- handler be used as an Interrupt Handler.
-- Routines needed for Interrupt Entries
-- Attempt to bind an Entry to an Interrupt to which a Handler is
-- already attached will raise a Program_Error.
procedure Bind_Interrupt_To_Entry
(T : System.Tasking.Task_ID;
E : System.Tasking.Task_Entry_Index;
Int_Ref : System.Address);
procedure Detach_Interrupt_Entries (T : System.Tasking.Task_ID);
-- This procedure detaches all the Interrupt Entries bound to a task.
-- Routines needed for POSIX dot5 POSIX_Signals.
procedure Block_Interrupt (Interrupt : Ada.Interrupts.Interrupt_ID);
procedure Unblock_Interrupt (Interrupt : Ada.Interrupts.Interrupt_ID);
function Is_Blocked
(Interrupt : Ada.Interrupts.Interrupt_ID)
return Boolean;
end System.Interrupts;
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