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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . T A S K _ I D E N T I F I C A T I O N --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2022, 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 --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Preconditions in this unit are meant for analysis only, not for run-time
-- checking, so that the expected exceptions are raised.
-- This is enforced by setting the corresponding assertion policy to Ignore.
pragma Assertion_Policy (Pre => Ignore);
with System;
with System.Tasking;
package Ada.Task_Identification with
SPARK_Mode,
Abstract_State => (Tasking_State with Synchronous),
Initializes => Tasking_State
is
pragma Preelaborate;
-- In accordance with Ada 2005 AI-362
type Task_Id is private;
pragma Preelaborable_Initialization (Task_Id);
Null_Task_Id : constant Task_Id;
function "=" (Left, Right : Task_Id) return Boolean with
Global => null;
pragma Inline ("=");
function Image (T : Task_Id) return String with
Global => null;
function Current_Task return Task_Id with
Volatile_Function,
Global => Tasking_State;
pragma Inline (Current_Task);
function Environment_Task return Task_Id with
SPARK_Mode => Off,
Global => null;
pragma Inline (Environment_Task);
procedure Abort_Task (T : Task_Id) with
Pre => T /= Null_Task_Id,
Global => null;
pragma Inline (Abort_Task);
-- Note: parameter is mode IN, not IN OUT, per AI-00101
function Is_Terminated (T : Task_Id) return Boolean with
Volatile_Function,
Pre => T /= Null_Task_Id,
Global => Tasking_State;
pragma Inline (Is_Terminated);
function Is_Callable (T : Task_Id) return Boolean with
Volatile_Function,
Pre => T /= Null_Task_Id,
Global => Tasking_State;
pragma Inline (Is_Callable);
function Activation_Is_Complete (T : Task_Id) return Boolean with
Volatile_Function,
Pre => T /= Null_Task_Id,
Global => Tasking_State;
pragma Inline (Activation_Is_Complete);
private
pragma SPARK_Mode (Off);
type Task_Id is new System.Tasking.Task_Id;
Null_Task_Id : constant Task_Id := null;
end Ada.Task_Identification;
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