1 ------------------------------------------------------------------------------
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- A D A . C A L E N D A R . D E L A Y S --
9 -- Copyright (C) 1992-1998, Free Software Foundation, Inc. --
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. --
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. --
29 -- GNARL was developed by the GNARL team at Florida State University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- This package implements Calendar.Time delays using protected objects.
36 -- Note: the compiler generates direct calls to this interface, in the
37 -- processing of time types.
39 package Ada
.Calendar
.Delays
is
41 procedure Delay_For
(D
: Duration);
42 -- Delay until an interval of length (at least) D seconds has passed,
43 -- or the task is aborted to at least the current ATC nesting level.
44 -- This is an abort completion point.
45 -- The body of this procedure must perform all the processing
46 -- required for an abortion point.
48 procedure Delay_Until
(T
: Time
);
49 -- Delay until Clock has reached (at least) time T,
50 -- or the task is aborted to at least the current ATC nesting level.
51 -- The body of this procedure must perform all the processing
52 -- required for an abortion point.
54 function To_Duration
(T
: Time
) return Duration;
56 end Ada
.Calendar
.Delays
;