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