------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . R E A L _ T I M E . T I M I N G _ E V E N T S -- -- -- -- S p e c -- -- -- -- Copyright (C) 2005-2018, 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.Finalization; package Ada.Real_Time.Timing_Events is type Timing_Event is tagged limited private; type Timing_Event_Handler is access protected procedure (Event : in out Timing_Event); procedure Set_Handler (Event : in out Timing_Event; At_Time : Time; Handler : Timing_Event_Handler); procedure Set_Handler (Event : in out Timing_Event; In_Time : Time_Span; Handler : Timing_Event_Handler); function Current_Handler (Event : Timing_Event) return Timing_Event_Handler; procedure Cancel_Handler (Event : in out Timing_Event; Cancelled : out Boolean); function Time_Of_Event (Event : Timing_Event) return Time; private type Timing_Event is new Ada.Finalization.Limited_Controlled with record Timeout : Time := Time_First; -- The time at which the user's handler should be invoked when the -- event is "set" (i.e., when Handler is not null). Handler : Timing_Event_Handler; -- An access value designating the protected procedure to be invoked -- at the Timeout time in the future. When this value is null the event -- is said to be "cleared" and no timeout is processed. end record; overriding procedure Finalize (This : in out Timing_Event); -- Finalization procedure is required to satisfy (RM D.15 (19/2)), which -- says that the object must be cleared on finalization. end Ada.Real_Time.Timing_Events;