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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- -- -- -- SYSTEM.INTERRUPT_MANAGEMENT.OPERATIONS -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2009, 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 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. -- -- -- ------------------------------------------------------------------------------ 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); -- Assignment 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;