with System.Task_Primitives.Operations;
pragma Elaborate_All (System.Task_Primitives.Operations);

GNAT RUN-TIME COMPONENTS

A D A . R E A L _ T I M E

S p e c

$Revision: 1.24 $

Copyright (C) 1992-1998 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 2, 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. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License distributed with GNAT; see file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

As a special exception, if other files instantiate generics from this unit, or you link this unit with other files to produce an executable, this unit does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU Public License.

GNAT was originally developed by the GNAT team at New York University. It is now maintained by Ada Core Technologies Inc (http://www.gnat.com).

package Ada.Real_Time is

type Time is private;

type Time_Span is private;

function Clock return Time;

function "+"  (Left : Time;      Right : Time_Span) return Time;

function "+"  (Left : Time_Span; Right : Time)      return Time;

function "-"  (Left : Time;      Right : Time_Span) return Time;

function "-"  (Left : Time;      Right : Time)      return Time_Span;

function "<"  (Left, Right : Time) return Boolean;

function "<=" (Left, Right : Time) return Boolean;

function ">"  (Left, Right : Time) return Boolean;

function ">=" (Left, Right : Time) return Boolean;

function "+"  (Left, Right : Time_Span)             return Time_Span;

function "-"  (Left, Right : Time_Span)             return Time_Span;

function "-"  (Right : Time_Span)                   return Time_Span;

function "*"  (Left : Time_Span; Right : Integer)   return Time_Span;

function "*"  (Left : Integer;   Right : Time_Span) return Time_Span;

function "/"  (Left, Right : Time_Span)             return Integer;

function "/"  (Left : Time_Span; Right : Integer)   return Time_Span;

function "abs" (Right : Time_Span) return Time_Span;

function "<"  (Left, Right : Time_Span) return Boolean;

function "<=" (Left, Right : Time_Span) return Boolean;

function ">"  (Left, Right : Time_Span) return Boolean;

function ">=" (Left, Right : Time_Span) return Boolean;

function To_Duration  (TS : Time_Span) return Duration;

function To_Time_Span (D : Duration)   return Time_Span;

function Nanoseconds  (NS : Integer) return Time_Span;

function Microseconds (US : Integer) return Time_Span;

function Milliseconds (MS : Integer) return Time_Span;

type Seconds_Count is new Integer range -Integer'Last .. Integer'Last;

procedure Split (T : Time; SC : out Seconds_Count; TS : out Time_Span);

function Time_Of (SC : Seconds_Count; TS : Time_Span) return Time;

private

   --  Implementation-defined ...

end Ada.Real_Time;