1------------------------------------------------------------------------------ 2-- -- 3-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS -- 4-- -- 5-- SYSTEM.TASKING.ASYNC_DELAYS.ENQUEUE_CALENDAR -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1998-2001 Free Software Foundation, Inc. -- 10-- -- 11-- GNARL is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 2, or (at your option) any later ver- -- 14-- sion. GNARL is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNARL; see file COPYING. If not, write -- 19-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- 20-- MA 02111-1307, USA. -- 21-- -- 22-- As a special exception, if other files instantiate generics from this -- 23-- unit, or you link this unit with other files to produce an executable, -- 24-- this unit does not by itself cause the resulting executable to be -- 25-- covered by the GNU General Public License. This exception does not -- 26-- however invalidate any other reasons why the executable file might be -- 27-- covered by the GNU Public License. -- 28-- -- 29-- GNARL was developed by the GNARL team at Florida State University. -- 30-- Extensive contributions were provided by Ada Core Technologies, Inc. -- 31-- -- 32------------------------------------------------------------------------------ 33 34with Ada.Calendar.Delays; 35with System.Task_Primitives.Operations; 36with System.Tasking.Initialization; 37 38function System.Tasking.Async_Delays.Enqueue_Calendar 39 (T : Ada.Calendar.Time; 40 D : Delay_Block_Access) 41 return Boolean 42is 43 use type Ada.Calendar.Time; 44begin 45 if T <= Ada.Calendar.Clock then 46 D.Timed_Out := True; 47 System.Task_Primitives.Operations.Yield; 48 return False; 49 end if; 50 51 System.Tasking.Initialization.Defer_Abort 52 (System.Task_Primitives.Operations.Self); 53 Time_Enqueue (Ada.Calendar.Delays.To_Duration (T), D); 54 return True; 55end System.Tasking.Async_Delays.Enqueue_Calendar; 56