------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . T A S K _ A T T R I B U T E S -- -- -- -- S p e c -- -- -- -- Copyright (C) 2014-2018, Free Software Foundation, Inc. -- -- -- -- This specification is derived from the Ada Reference Manual for use with -- -- GNAT. The copyright notice above, and the license provisions that follow -- -- apply solely to the contents of the part following the private keyword. -- -- -- -- 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. -- -- -- ------------------------------------------------------------------------------ with Ada.Task_Identification; generic type Attribute is private; Initial_Value : Attribute; package Ada.Task_Attributes is -- Note that this package will use an efficient implementation with no -- locks and no extra dynamic memory allocation if Attribute is the size -- of either Integer or System.Address, and Initial_Value is 0 (null for -- an access type). -- Other types and initial values are supported, but will require -- the use of locking and a level of indirection (meaning extra dynamic -- memory allocation). -- The maximum number of task attributes supported by this implementation -- is determined by the constant System.Parameters.Max_Attribute_Count. -- If you exceed this number, Storage_Error will be raised during the -- elaboration of the instantiation of this package. type Attribute_Handle is access all Attribute; function Value (T : Ada.Task_Identification.Task_Id := Ada.Task_Identification.Current_Task) return Attribute; -- Return the value of the corresponding attribute of T. Tasking_Error -- is raised if T is terminated and Program_Error will be raised if T -- is Null_Task_Id. function Reference (T : Ada.Task_Identification.Task_Id := Ada.Task_Identification.Current_Task) return Attribute_Handle; -- Return an access value that designates the corresponding attribute of -- T. Tasking_Error is raised if T is terminated and Program_Error will be -- raised if T is Null_Task_Id. procedure Set_Value (Val : Attribute; T : Ada.Task_Identification.Task_Id := Ada.Task_Identification.Current_Task); -- Finalize the old value of the attribute of T and assign Val to that -- attribute. Tasking_Error is raised if T is terminated and Program_Error -- will be raised if T is Null_Task_Id. procedure Reinitialize (T : Ada.Task_Identification.Task_Id := Ada.Task_Identification.Current_Task); -- Same as Set_Value (Initial_Value, T). Tasking_Error is raised if T is -- terminated and Program_Error will be raised if T is Null_Task_Id. private pragma Inline (Value); pragma Inline (Reference); pragma Inline (Set_Value); pragma Inline (Reinitialize); end Ada.Task_Attributes;