------------------------------------------------------------------------------ ------------------------------------------------------------------------------ -- Cheddar is a GNU GPL real time scheduling analysis tool. -- This program provides services to automatically check performances -- of real time architectures. -- -- Copyright (C) 2002-2010, by Frank Singhoff, Alain Plantec, Jerome Legrand -- -- The Cheddar project was started in 2002 by -- the LISyC Team, University of Western Britanny. -- -- Since 2008, Ellidiss technologies also contributes to the development of -- Cheddar and provides industrial support. -- -- This program is free software; you can redistribute it and/or modify -- it under the terms of the GNU General Public License as published by -- the Free Software Foundation; either version 2 of the License, or -- (at your option) any later version. -- -- This program is distributed in the hope that it will be useful, -- but WITHOUT 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 -- along with this program; if not, write to the Free Software -- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -- -- -- Contact : cheddar@listes.univ-brest.fr -- ----------------------------------------------------------------------------- -- Last update : -- $Rev: 523 $ -- $Date: 2012-09-26 15:09:39 +0200 (Wed, 26 Sep 2012) $ -- $Author: fotsing $ ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ with Xml_Tag; use Xml_Tag; with double_util; use double_util; with Translate; use Translate; with feasibility_test.processor_utilization; use feasibility_test.processor_utilization; package body Scheduler.Fixed_Priority.Dm is procedure Initialize (A_Scheduler : in out Dm_Scheduler) is begin Reset (A_Scheduler); A_Scheduler.parameters.scheduler_type := Deadline_Monotonic_Protocol; end Initialize; function Copy (A_Scheduler : in Dm_Scheduler) return Generic_Scheduler_Ptr is Ptr : Dm_Scheduler_Ptr; begin Ptr := new Dm_Scheduler; Ptr.parameters := A_Scheduler.parameters; Ptr.Previously_Elected := A_Scheduler.Previously_Elected; Ptr.Used_Resource := A_Scheduler.Used_Resource; return Generic_Scheduler_Ptr (Ptr); end Copy; procedure Check_Before_Scheduling (My_Scheduler : in Dm_Scheduler; My_Tasks : in Tasks_Set; Processor_Name : in Unbounded_String) is begin null; end Check_Before_Scheduling; procedure Compute_Response_Time (My_Scheduler : in Dm_Scheduler; My_Tasks : in out Tasks_Set; Processor_Name : in Unbounded_String; Msg : in out Unbounded_String; Response_Time : out Response_Time_Table) is begin -- check if tasks are periodics -- Periodic_Control (My_Tasks, Processor_Name); -- Check processor utilization first -- if (Processor_Utilization_Over_Period (My_Tasks, Processor_Name) > 1.0) then raise Processor_Utilization_Exceeded; end if; -- check start time -- Start_Time_Control (My_Tasks, Processor_Name); -- check offset -- Offset_Control (My_Tasks, Processor_Name); -- Compute response time -- Scheduler.Fixed_Priority.Compute_Response_Time (Fixed_Priority_Scheduler (My_Scheduler), My_Tasks, Processor_Name, Msg, Response_Time); end Compute_Response_Time; procedure Utilization_Factor_Feasibility_Test (My_Scheduler : in Dm_Scheduler; My_Tasks : in Tasks_Set; Processor_Name : in Unbounded_String; Result : in out Unbounded_String; Output : in Output_Format := String_Output) is Bound : Double := 0.0; Utildi : Double := 0.0; Msg : Unbounded_String := empty_string; begin Start_Time_Control (My_Tasks, Processor_Name); Offset_Control (My_Tasks, Processor_Name); -- if Output = Xml2_Output then -- Result := Result & To_Unbounded_String (" scheduler=""dm"""); -- end if; Utildi := Processor_Utilization_Over_Deadline (My_Tasks, Processor_Name); Bound_On_Processor_Utilization (My_Scheduler, My_Tasks, Processor_Name, Bound, Msg); case Get_Preemptive (My_Scheduler) is when preemptive => if Output /= Xml2_Output then Result := Result & Lb_Utilization_Bound1 (Current_Language); Result := Result & Lb_Dm (Current_Language); -- else -- Result := Result & -- To_Unbounded_String (" preemptive=""true"""); end if; if Utildi <= Bound then if Output = Xml2_Output then Result := Result & To_Unbounded_String (" result=""true"" explanation="""); end if; Result := Result & Lb_Sched_Explanation1 (Current_Language); Result := Result & Start_Fact_Bound & format (Utildi) & End_Fact_Bound; Result := Result & Lb_Sched_Explanation12 (Current_Language); Result := Result & Start_Fact_Bound & format (Bound) & End_Fact_Bound; else if Output = Xml2_Output then Result := Result & To_Unbounded_String (" result=""false"" explanation="""); end if; Result := Result & Lb_Sched_Explanation2 (Current_Language); Result := Result & Start_Fact_Bound & format (Utildi) & End_Fact_Bound; Result := Result & Lb_Sched_Explanation22 (Current_Language); Result := Result & Start_Fact_Bound & format (Bound) & End_Fact_Bound; end if; if Output /= Xml2_Output then Result := Result & Start_Ref & To_Unbounded_String (" (") & Lb_See (Current_Language) & To_Unbounded_String ("[7]).") & End_Ref & unbounded_lf; else -- JLE : why the msg variable which contains a different biblio --reference is not used??? Result := Result & To_Unbounded_String (""" biblio=""[7]"""); end if; when not_preemptive => if Output = Xml2_Output then -- Result := Result & -- To_Unbounded_String( -- " preemptive=""false"" result=""false"" explanation="""); Result := Result & To_Unbounded_String( " result=""false"" explanation="""); Result := Result & Lb_Pb_Sched_Unknown (Current_Language); Result := Result & To_Unbounded_String (""" biblio=""") & To_Unbounded_String (""""); else Result := Result & To_Unbounded_String ("- ") & Lb_Pb_Sched_Unknown (Current_Language) & unbounded_lf; end if; end case; end Utilization_Factor_Feasibility_Test; end Scheduler.Fixed_Priority.Dm;