| ----------------------------------------------------------------------- |
| -- Code Archetypes for the CHESS Component Model -- |
| -- -- |
| -- Copyright (C) 2011-2012 -- |
| -- University of Padova, ITALY -- |
| -- -- |
| -- Author: Marco Panunzio panunzio@math.unipd.it -- |
| -- -- |
| -- All rights reserved. This program and the accompanying materials -- |
| -- are made available under the terms of the Eclipse Public License -- |
| -- v1.0 which accompanies this distribution, and is available at -- |
| -- http://www.eclipse.org/legal/epl-v20.html -- |
| ----------------------------------------------------------------------- |
| |
| with System_Time; |
| with Ada.Real_Time; use Ada.Real_Time; |
| with Ada.Text_IO; |
| |
| package body Sporadic_Task is |
| |
| -------------- |
| -- Thread_T -- |
| -------------- |
| |
| task body Thread_T is |
| Req_Desc : Data_Structure.Request_Descriptor_T; |
| Release : Time; |
| Task_MIAT : constant Time_Span := Milliseconds(MIAT); |
| Next_Time : Time := System_Time.System_Start_Time + |
| System_Time.Task_Activation_Delay; |
| Assigned_Task_ID : constant Data_Structure.Task_Gen_ID := My_Task_ID; |
| begin |
| |
| -- Suspend the task until first release; |
| delay until Next_Time; |
| |
| Ada.Text_IO.Put("Task "); |
| Ada.Text_IO.Put(Natural'Image(Natural(Assigned_Task_ID))); |
| Ada.Text_IO.Put_Line(" first activation"); |
| |
| Task_Loop : |
| loop |
| -- First action : enqueue in the release entry of the CPA |
| Get_Request(Req_Desc, Release); |
| |
| -- Execute the sequential operation |
| --Ada.Text_IO.Put_Line("Sporadic Task: Calling My_OPCS"); |
| Data_Structure.My_OPCS(Req_Desc.Params.all); |
| |
| -- Calculate the new earliest release time and suspend |
| Next_Time := Release + Task_MIAT; |
| delay until Next_Time; |
| end loop Task_Loop; |
| |
| end Thread_T; |
| |
| end Sporadic_Task; |
