------------------------------------------------------------------------------ -- -- -- 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) 1992-2018, 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 System.Task_Primitives; with Ada.Finalization; with Ada.Task_Identification; package Ada.Synchronous_Task_Control with SPARK_Mode is pragma Preelaborate; -- In accordance with Ada 2005 AI-362 type Suspension_Object is limited private with Default_Initial_Condition; procedure Set_True (S : in out Suspension_Object) with Global => null, Depends => (S => null, null => S); procedure Set_False (S : in out Suspension_Object) with Global => null, Depends => (S => null, null => S); function Current_State (S : Suspension_Object) return Boolean with Volatile_Function, Global => Ada.Task_Identification.Tasking_State; procedure Suspend_Until_True (S : in out Suspension_Object) with Global => null, Depends => (S => null, null => S); private pragma SPARK_Mode (Off); 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;