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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- 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 . --
-- O P E R A T I O N S --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2005, 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, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, 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. --
-- --
------------------------------------------------------------------------------
package System.Interrupt_Management.Operations is
procedure Thread_Block_Interrupt (Interrupt : Interrupt_ID);
pragma Inline (Thread_Block_Interrupt);
-- Mask the calling thread for the interrupt
procedure Thread_Unblock_Interrupt (Interrupt : Interrupt_ID);
pragma Inline (Thread_Unblock_Interrupt);
-- Unmask the calling thread for the interrupt
procedure Set_Interrupt_Mask (Mask : access Interrupt_Mask);
-- Set the interrupt mask of the calling thread
procedure Set_Interrupt_Mask
(Mask : access Interrupt_Mask;
OMask : access Interrupt_Mask);
pragma Inline (Set_Interrupt_Mask);
-- Set the interrupt mask of the calling thread while returning the
-- previous Mask.
procedure Get_Interrupt_Mask (Mask : access Interrupt_Mask);
pragma Inline (Get_Interrupt_Mask);
-- Get the interrupt mask of the calling thread
function Interrupt_Wait (Mask : access Interrupt_Mask) return Interrupt_ID;
pragma Inline (Interrupt_Wait);
-- Wait for the interrupts specified in Mask and return
-- the interrupt received. Return 0 upon error.
procedure Install_Default_Action (Interrupt : Interrupt_ID);
pragma Inline (Install_Default_Action);
-- Set the sigaction of the Interrupt to default (SIG_DFL)
procedure Install_Ignore_Action (Interrupt : Interrupt_ID);
pragma Inline (Install_Ignore_Action);
-- Set the sigaction of the Interrupt to ignore (SIG_IGN)
procedure Fill_Interrupt_Mask (Mask : access Interrupt_Mask);
pragma Inline (Fill_Interrupt_Mask);
-- Get a Interrupt_Mask with all the interrupt masked
procedure Empty_Interrupt_Mask (Mask : access Interrupt_Mask);
pragma Inline (Empty_Interrupt_Mask);
-- Get a Interrupt_Mask with all the interrupt unmasked
procedure Add_To_Interrupt_Mask
(Mask : access Interrupt_Mask;
Interrupt : Interrupt_ID);
pragma Inline (Add_To_Interrupt_Mask);
-- Mask the given interrupt in the Interrupt_Mask
procedure Delete_From_Interrupt_Mask
(Mask : access Interrupt_Mask;
Interrupt : Interrupt_ID);
pragma Inline (Delete_From_Interrupt_Mask);
-- Unmask the given interrupt in the Interrupt_Mask
function Is_Member
(Mask : access Interrupt_Mask;
Interrupt : Interrupt_ID) return Boolean;
pragma Inline (Is_Member);
-- See if a given interrupt is masked in the Interrupt_Mask
procedure Copy_Interrupt_Mask (X : out Interrupt_Mask; Y : Interrupt_Mask);
pragma Inline (Copy_Interrupt_Mask);
-- Assigment needed for limited private type Interrupt_Mask
procedure Interrupt_Self_Process (Interrupt : Interrupt_ID);
pragma Inline (Interrupt_Self_Process);
-- Raise an Interrupt process-level
procedure Setup_Interrupt_Mask;
-- Mask Environment task for all signals
-- This function should be called by the elaboration of System.Interrupt
-- to set up proper signal masking in all tasks.
-- The following objects serve as constants, but are initialized in the
-- body to aid portability. These should be in System.Interrupt_Management
-- but since Interrupt_Mask is private type we cannot have them declared
-- there.
-- Why not make these deferred constants that are initialized using
-- function calls in the private part???
Environment_Mask : aliased Interrupt_Mask;
-- This mask represents the mask of Environment task when this package is
-- being elaborated, except the signals being forced to be unmasked by RTS
-- (items in Keep_Unmasked)
All_Tasks_Mask : aliased Interrupt_Mask;
-- This is the mask of all tasks created in RTS. Only one task in RTS
-- is responsible for masking/unmasking signals (see s-interr.adb).
end System.Interrupt_Management.Operations;
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