105 lines
4.5 KiB
Ada
105 lines
4.5 KiB
Ada
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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- A D A . T A S K _ I D E N T I F I C A T I O N --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1992-2020, Free Software Foundation, Inc. --
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-- --
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-- This specification is derived from the Ada Reference Manual for use with --
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-- GNAT. The copyright notice above, and the license provisions that follow --
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-- apply solely to the contents of the part following the private keyword. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- Preconditions in this unit are meant for analysis only, not for run-time
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-- checking, so that the expected exceptions are raised.
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-- This is enforced by setting the corresponding assertion policy to Ignore.
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pragma Assertion_Policy (Pre => Ignore);
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with System;
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with System.Tasking;
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package Ada.Task_Identification with
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SPARK_Mode,
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Abstract_State => (Tasking_State with Synchronous),
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Initializes => Tasking_State
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is
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pragma Preelaborate;
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-- In accordance with Ada 2005 AI-362
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type Task_Id is private;
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pragma Preelaborable_Initialization (Task_Id);
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Null_Task_Id : constant Task_Id;
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function "=" (Left, Right : Task_Id) return Boolean with
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Global => null;
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pragma Inline ("=");
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function Image (T : Task_Id) return String with
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Global => null;
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function Current_Task return Task_Id with
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Volatile_Function,
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Global => Tasking_State;
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pragma Inline (Current_Task);
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function Environment_Task return Task_Id with
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SPARK_Mode => Off,
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Global => null;
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pragma Inline (Environment_Task);
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procedure Abort_Task (T : Task_Id) with
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Pre => T /= Null_Task_Id,
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Global => null;
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pragma Inline (Abort_Task);
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-- Note: parameter is mode IN, not IN OUT, per AI-00101
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function Is_Terminated (T : Task_Id) return Boolean with
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Volatile_Function,
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Pre => T /= Null_Task_Id,
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Global => Tasking_State;
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pragma Inline (Is_Terminated);
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function Is_Callable (T : Task_Id) return Boolean with
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Volatile_Function,
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Pre => T /= Null_Task_Id,
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Global => Tasking_State;
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pragma Inline (Is_Callable);
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function Activation_Is_Complete (T : Task_Id) return Boolean with
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Volatile_Function,
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Global => Tasking_State;
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private
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pragma SPARK_Mode (Off);
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type Task_Id is new System.Tasking.Task_Id;
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Null_Task_Id : constant Task_Id := null;
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end Ada.Task_Identification;
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