------------------------------------------------------------------------------ -- -- -- 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) 2004-2018, 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 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 -- -- . -- -- -- -- 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. pragma Compiler_Unit_Warning; with System.Rident; package System.Restrictions is pragma Preelaborate; pragma Discard_Names; package Rident is new System.Rident; -- Instantiate a copy of System.Rident without enumeration image names Run_Time_Restrictions : Rident.Restrictions_Info; -- Restrictions as set by the user, or detected by the binder. See details -- in package System.Rident for what restrictions are included in the list -- and the format of the information. -- -- 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;