| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 2005-2009, 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| 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; |
