135 lines
5.3 KiB
Ada
135 lines
5.3 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- A D A . E X E C U T I O N _ T I M E --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2009-2020, Free Software Foundation, Inc. --
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-- --
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-- This specification is derived from the Ada Reference Manual for use with --
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-- GNAT. The copyright notice above, and the license provisions that follow --
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-- apply solely to the contents of the part following the private keyword. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This is the Windows native version of this package
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with Ada.Task_Identification;
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with Ada.Real_Time;
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package Ada.Execution_Time with
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SPARK_Mode
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is
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type CPU_Time is private;
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CPU_Time_First : constant CPU_Time;
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CPU_Time_Last : constant CPU_Time;
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CPU_Time_Unit : constant := 0.000001;
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CPU_Tick : constant Ada.Real_Time.Time_Span;
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use type Ada.Task_Identification.Task_Id;
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function Clock
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(T : Ada.Task_Identification.Task_Id :=
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Ada.Task_Identification.Current_Task)
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return CPU_Time
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with
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Volatile_Function,
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Global => Ada.Real_Time.Clock_Time,
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Pre => T /= Ada.Task_Identification.Null_Task_Id;
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function "+"
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(Left : CPU_Time;
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Right : Ada.Real_Time.Time_Span) return CPU_Time
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with
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Global => null;
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function "+"
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(Left : Ada.Real_Time.Time_Span;
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Right : CPU_Time) return CPU_Time
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with
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Global => null;
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function "-"
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(Left : CPU_Time;
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Right : Ada.Real_Time.Time_Span) return CPU_Time
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with
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Global => null;
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function "-"
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(Left : CPU_Time;
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Right : CPU_Time) return Ada.Real_Time.Time_Span
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with
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Global => null;
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function "<" (Left, Right : CPU_Time) return Boolean with
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Global => null;
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function "<=" (Left, Right : CPU_Time) return Boolean with
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Global => null;
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function ">" (Left, Right : CPU_Time) return Boolean with
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Global => null;
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function ">=" (Left, Right : CPU_Time) return Boolean with
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Global => null;
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procedure Split
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(T : CPU_Time;
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SC : out Ada.Real_Time.Seconds_Count;
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TS : out Ada.Real_Time.Time_Span)
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with
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Global => null;
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function Time_Of
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(SC : Ada.Real_Time.Seconds_Count;
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TS : Ada.Real_Time.Time_Span := Ada.Real_Time.Time_Span_Zero)
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return CPU_Time
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with
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Global => null;
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Interrupt_Clocks_Supported : constant Boolean := False;
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Separate_Interrupt_Clocks_Supported : constant Boolean := False;
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pragma Warnings (Off, "check will fail at run time");
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function Clock_For_Interrupts return CPU_Time with
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Volatile_Function,
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Global => Ada.Real_Time.Clock_Time,
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Pre => Interrupt_Clocks_Supported;
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pragma Warnings (On, "check will fail at run time");
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private
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pragma SPARK_Mode (Off);
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type CPU_Time is new Ada.Real_Time.Time;
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CPU_Time_First : constant CPU_Time := CPU_Time (Ada.Real_Time.Time_First);
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CPU_Time_Last : constant CPU_Time := CPU_Time (Ada.Real_Time.Time_Last);
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CPU_Tick : constant Ada.Real_Time.Time_Span := Ada.Real_Time.Tick;
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pragma Import (Intrinsic, "<");
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pragma Import (Intrinsic, "<=");
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pragma Import (Intrinsic, ">");
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pragma Import (Intrinsic, ">=");
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end Ada.Execution_Time;
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