74 lines
4.0 KiB
Ada
74 lines
4.0 KiB
Ada
------------------------------------------------------------------------------
|
|
-- --
|
|
-- GNAT COMPILER COMPONENTS --
|
|
-- --
|
|
-- S Y S T E M . R E S T R I C T I O N S --
|
|
-- --
|
|
-- S p e c --
|
|
-- --
|
|
-- Copyright (C) 2004-2006, Free Software Foundation, Inc. --
|
|
-- --
|
|
-- 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 2, 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. See the GNU General Public License --
|
|
-- for more details. You should have received a copy of the GNU General --
|
|
-- Public License distributed with GNAT; 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. --
|
|
-- --
|
|
-- GNAT was originally developed by the GNAT team at New York University. --
|
|
-- Extensive contributions were provided by Ada Core Technologies Inc. --
|
|
-- --
|
|
------------------------------------------------------------------------------
|
|
|
|
-- This package provides a run-time interface for checking the set of
|
|
-- restrictions that applies to the current partition. The information
|
|
-- comes both from explicit restriction pragmas present, and also from
|
|
-- compile time checking.
|
|
|
|
-- The package simply contains an instantiation of System.Rident, but
|
|
-- with names discarded, so that we do not have image tables for the
|
|
-- large restriction enumeration types at run time.
|
|
|
|
with System.Rident;
|
|
|
|
package System.Restrictions is
|
|
pragma Preelaborate;
|
|
|
|
pragma Discard_Names;
|
|
package Rident is new System.Rident;
|
|
|
|
Run_Time_Restrictions : Rident.Restrictions_Info;
|
|
-- Restrictions as set by the user, or detected by the binder.
|
|
-- Note that a restriction which is both Set and Violated at run-time means
|
|
-- that the violation was detected as part of the Ada run-time and not
|
|
-- as part of user code.
|
|
|
|
------------------
|
|
-- Subprograms --
|
|
-----------------
|
|
|
|
function Abort_Allowed return Boolean;
|
|
pragma Inline (Abort_Allowed);
|
|
-- Tests to see if abort is allowed by the current restrictions settings.
|
|
-- For abort to be allowed, either No_Abort_Statements must be False,
|
|
-- or Max_Asynchronous_Select_Nesting must be non-zero.
|
|
|
|
function Tasking_Allowed return Boolean;
|
|
pragma Inline (Tasking_Allowed);
|
|
-- Tests to see if tasking operations are allowed by the current
|
|
-- restrictions settings. For tasking to be allowed, No_Tasking
|
|
-- must be False, and Max_Tasks must not be set to zero.
|
|
|
|
end System.Restrictions;
|