111 lines
4.8 KiB
Ada
111 lines
4.8 KiB
Ada
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------------------------------------------------------------------------------
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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 . G R O U P _ B U D G E T S --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2015-2020, 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 unit is not implemented in typical GNAT implementations that lie on
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-- top of operating systems, because it is infeasible to implement in such
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-- environments.
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-- If a target environment provides appropriate support for this package,
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-- then the Unimplemented_Unit pragma should be removed from this spec and
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-- an appropriate body provided.
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with System;
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with System.Multiprocessors;
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package Ada.Execution_Time.Group_Budgets is
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pragma Unimplemented_Unit;
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type Group_Budget
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(CPU : System.Multiprocessors.CPU := System.Multiprocessors.CPU'First)
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is tagged limited private;
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type Group_Budget_Handler is access
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protected procedure (GB : in out Group_Budget);
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type Task_Array is
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array (Positive range <>) of Ada.Task_Identification.Task_Id;
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Min_Handler_Ceiling : constant System.Any_Priority :=
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System.Any_Priority'First;
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-- Initial value is an arbitrary choice ???
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procedure Add_Task
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(GB : in out Group_Budget;
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T : Ada.Task_Identification.Task_Id);
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procedure Remove_Task
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(GB : in out Group_Budget;
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T : Ada.Task_Identification.Task_Id);
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function Is_Member
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(GB : Group_Budget;
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T : Ada.Task_Identification.Task_Id) return Boolean;
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function Is_A_Group_Member
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(T : Ada.Task_Identification.Task_Id) return Boolean;
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function Members (GB : Group_Budget) return Task_Array;
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procedure Replenish
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(GB : in out Group_Budget;
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To : Ada.Real_Time.Time_Span);
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procedure Add
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(GB : in out Group_Budget;
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Interval : Ada.Real_Time.Time_Span);
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function Budget_Has_Expired (GB : Group_Budget) return Boolean;
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function Budget_Remaining
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(GB : Group_Budget) return Ada.Real_Time.Time_Span;
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procedure Set_Handler
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(GB : in out Group_Budget;
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Handler : Group_Budget_Handler);
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function Current_Handler (GB : Group_Budget) return Group_Budget_Handler;
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procedure Cancel_Handler
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(GB : in out Group_Budget;
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Cancelled : out Boolean);
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Group_Budget_Error : exception;
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private
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type Group_Budget
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(CPU : System.Multiprocessors.CPU := System.Multiprocessors.CPU'First)
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is tagged limited null record;
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end Ada.Execution_Time.Group_Budgets;
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