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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . S Y N C H R O N O U S _ T A S K _ C O N T R O L --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2005 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 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. --
-- --
------------------------------------------------------------------------------
pragma Warnings (Off);
-- Allow withing of non-Preelaborated units in Ada 2005 mode where this
-- package will be implicitly categorized as Preelaborate. See AI-362 for
-- details. It is safe in the context of the run-time to violate the rules!
with System.Task_Primitives;
-- Used for Suspension_Object
with Ada.Finalization;
-- Used for Limited_Controlled
pragma Warnings (On);
package Ada.Synchronous_Task_Control is
pragma Preelaborate_05 (Synchronous_Task_Control);
-- In accordance with Ada 2005 AI-362
type Suspension_Object is limited private;
procedure Set_True (S : in out Suspension_Object);
procedure Set_False (S : in out Suspension_Object);
function Current_State (S : Suspension_Object) return Boolean;
procedure Suspend_Until_True (S : in out Suspension_Object);
private
procedure Initialize (S : in out Suspension_Object);
-- Initialization for Suspension_Object
procedure Finalize (S : in out Suspension_Object);
-- Finalization for Suspension_Object
type Suspension_Object is
new Ada.Finalization.Limited_Controlled with record
SO : System.Task_Primitives.Suspension_Object;
-- Use low-level suspension objects so that the synchronization
-- functionality provided by this object can be achieved using
-- efficient operating system primitives.
end record;
pragma Inline (Set_True);
pragma Inline (Set_False);
pragma Inline (Current_State);
pragma Inline (Suspend_Until_True);
pragma Inline (Initialize);
pragma Inline (Finalize);
end Ada.Synchronous_Task_Control;
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