126 lines
6 KiB
Ada
126 lines
6 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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-- --
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-- SYSTEM.INTERRUPT_MANAGEMENT.OPERATIONS --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
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-- --
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-- GNARL is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNARL was developed by the GNARL team at Florida State University. --
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-- Extensive contributions were provided by Ada Core Technologies, Inc. --
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-- --
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------------------------------------------------------------------------------
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package System.Interrupt_Management.Operations is
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procedure Thread_Block_Interrupt (Interrupt : Interrupt_ID);
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pragma Inline (Thread_Block_Interrupt);
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-- Mask the calling thread for the interrupt
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procedure Thread_Unblock_Interrupt (Interrupt : Interrupt_ID);
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pragma Inline (Thread_Unblock_Interrupt);
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-- Unmask the calling thread for the interrupt
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procedure Set_Interrupt_Mask (Mask : access Interrupt_Mask);
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-- Set the interrupt mask of the calling thread
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procedure Set_Interrupt_Mask
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(Mask : access Interrupt_Mask;
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OMask : access Interrupt_Mask);
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pragma Inline (Set_Interrupt_Mask);
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-- Set the interrupt mask of the calling thread while returning the
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-- previous Mask.
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procedure Get_Interrupt_Mask (Mask : access Interrupt_Mask);
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pragma Inline (Get_Interrupt_Mask);
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-- Get the interrupt mask of the calling thread
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function Interrupt_Wait (Mask : access Interrupt_Mask) return Interrupt_ID;
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pragma Inline (Interrupt_Wait);
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-- Wait for the interrupts specified in Mask and return
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-- the interrupt received. Return 0 upon error.
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procedure Install_Default_Action (Interrupt : Interrupt_ID);
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pragma Inline (Install_Default_Action);
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-- Set the sigaction of the Interrupt to default (SIG_DFL)
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procedure Install_Ignore_Action (Interrupt : Interrupt_ID);
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pragma Inline (Install_Ignore_Action);
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-- Set the sigaction of the Interrupt to ignore (SIG_IGN)
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procedure Fill_Interrupt_Mask (Mask : access Interrupt_Mask);
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pragma Inline (Fill_Interrupt_Mask);
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-- Get a Interrupt_Mask with all the interrupt masked
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procedure Empty_Interrupt_Mask (Mask : access Interrupt_Mask);
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pragma Inline (Empty_Interrupt_Mask);
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-- Get a Interrupt_Mask with all the interrupt unmasked
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procedure Add_To_Interrupt_Mask
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(Mask : access Interrupt_Mask;
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Interrupt : Interrupt_ID);
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pragma Inline (Add_To_Interrupt_Mask);
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-- Mask the given interrupt in the Interrupt_Mask
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procedure Delete_From_Interrupt_Mask
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(Mask : access Interrupt_Mask;
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Interrupt : Interrupt_ID);
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pragma Inline (Delete_From_Interrupt_Mask);
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-- Unmask the given interrupt in the Interrupt_Mask
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function Is_Member
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(Mask : access Interrupt_Mask;
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Interrupt : Interrupt_ID) return Boolean;
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pragma Inline (Is_Member);
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-- See if a given interrupt is masked in the Interrupt_Mask
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procedure Copy_Interrupt_Mask (X : out Interrupt_Mask; Y : Interrupt_Mask);
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pragma Inline (Copy_Interrupt_Mask);
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-- Assignment needed for limited private type Interrupt_Mask
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procedure Interrupt_Self_Process (Interrupt : Interrupt_ID);
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pragma Inline (Interrupt_Self_Process);
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-- Raise an Interrupt process-level
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procedure Setup_Interrupt_Mask;
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-- Mask Environment task for all signals
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-- This function should be called by the elaboration of System.Interrupt
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-- to set up proper signal masking in all tasks.
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-- The following objects serve as constants, but are initialized in the
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-- body to aid portability. These should be in System.Interrupt_Management
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-- but since Interrupt_Mask is private type we cannot have them declared
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-- there.
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-- Why not make these deferred constants that are initialized using
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-- function calls in the private part???
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Environment_Mask : aliased Interrupt_Mask;
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-- This mask represents the mask of Environment task when this package is
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-- being elaborated, except the signals being forced to be unmasked by RTS
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-- (items in Keep_Unmasked)
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All_Tasks_Mask : aliased Interrupt_Mask;
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-- This is the mask of all tasks created in RTS. Only one task in RTS
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-- is responsible for masking/unmasking signals (see s-interr.adb).
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end System.Interrupt_Management.Operations;
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