ocarina-backends-cheddar-main.adb 9.42 KB
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------------------------------------------------------------------------------
--                                                                          --
--                           OCARINA COMPONENTS                             --
--                                                                          --
--        O C A R I N A . B A C K E N D S . C H E D D A R . M A I N         --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
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--                   Copyright (C) 2010-2014 ESA & ISAE.                    --
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--                                                                          --
-- Ocarina  is free software;  you  can  redistribute  it and/or  modify    --
-- it under terms of the GNU General Public License as published by the     --
-- Free Software Foundation; either version 2, or (at your option) any      --
-- later version. Ocarina 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 distributed with Ocarina; see file COPYING.   --
-- If not, write to the Free Software Foundation, 51 Franklin Street, Fifth --
-- Floor, Boston, MA 02111-1301, 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.                                       --
--                                                                          --
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--                 Ocarina is maintained by the TASTE project               --
--                      (taste-users@lists.tuxfamily.org)                   --
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--                                                                          --
------------------------------------------------------------------------------

with Ocarina.ME_AADL;
with Ocarina.ME_AADL.AADL_Instances.Nodes;
with Ocarina.ME_AADL.AADL_Instances.Nutils;
with Ocarina.ME_AADL.AADL_Instances.Entities;
with Ocarina.Backends.XML_Tree.Nodes;
with Ocarina.Backends.XML_Tree.Nutils;
with Ocarina.Backends.Cheddar.Mapping;

package body Ocarina.Backends.Cheddar.Main is

   use Ocarina.ME_AADL;
   use Ocarina.ME_AADL.AADL_Instances.Nodes;
   use Ocarina.ME_AADL.AADL_Instances.Entities;
   use Ocarina.Backends.XML_Tree.Nutils;
   use Ocarina.Backends.Cheddar.Mapping;

   package AINU renames Ocarina.ME_AADL.AADL_Instances.Nutils;
   package XTN renames Ocarina.Backends.XML_Tree.Nodes;

   procedure Visit_Component (E : Node_Id);
   procedure Visit_System (E : Node_Id);
   procedure Visit_Processor (E : Node_Id);
   procedure Visit_Thread (E : Node_Id);
   procedure Visit_Process (E : Node_Id);
   procedure Visit_Data (E : Node_Id);

   ----------------------------
   -- Visit_Subcomponents_Of --
   ----------------------------

   procedure Visit_Subcomponents_Of (E : Node_Id);

   procedure Visit_Subcomponents_Of (E : Node_Id) is
      S : Node_Id;
   begin
      if not AINU.Is_Empty (Subcomponents (E)) then
         S := First_Node (Subcomponents (E));
         while Present (S) loop
            --  Visit the component instance corresponding to the
            --  subcomponent S.
            Visit (Corresponding_Instance (S));
            S := Next_Node (S);
         end loop;
      end if;
   end Visit_Subcomponents_Of;

   Root_System_Node  : Node_Id := No_Node;
   Cheddar_Node      : Node_Id := No_Node;
   Tasks_Node        : Node_Id := No_Node;
   Processors_Node   : Node_Id := No_Node;
   Address_Node      : Node_Id := No_Node;
   Buffers_Node      : Node_Id := No_Node;
   Resources_Node    : Node_Id := No_Node;
   Dependencies_Node : Node_Id := No_Node;

   -----------
   -- Visit --
   -----------

   procedure Visit (E : Node_Id) is
   begin
      case Kind (E) is
         when K_Architecture_Instance =>
            Root_System_Node := Root_System (E);
            Visit (Root_System_Node);

         when K_Component_Instance =>
            Visit_Component (E);

         when others =>
            null;
      end case;
   end Visit;

   ---------------------
   -- Visit_Component --
   ---------------------

   procedure Visit_Component (E : Node_Id) is
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      Category : constant Component_Category := Get_Category_Of_Component (E);
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   begin
      case Category is
         when CC_System =>
            Visit_System (E);

         when CC_Processor =>
            Visit_Processor (E);

         when CC_Process =>
            Visit_Process (E);

         when CC_Thread =>
            Visit_Thread (E);

         when CC_Data =>
            Visit_Data (E);

         when others =>
            null;
      end case;
   end Visit_Component;

   ------------------
   -- Visit_Thread --
   ------------------

   procedure Visit_Thread (E : Node_Id) is
      F : Node_Id;
   begin
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      Append_Node_To_List (Map_Thread (E), XTN.Subitems (Tasks_Node));
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      if Present (Features (E)) then
         F := First_Node (Features (E));
         while Present (F) loop
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            if Kind (F) = K_Port_Spec_Instance and then Is_Event (F) then
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               if Is_In (F) then
                  Append_Node_To_List
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                    (Map_Buffer (E, F),
                     XTN.Subitems (Buffers_Node));
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               end if;
               Append_Node_To_List
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                 (Map_Dependency (E, F),
                  XTN.Subitems (Dependencies_Node));
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            end if;
            F := Next_Node (F);
         end loop;
      end if;

      Visit_Subcomponents_Of (E);
   end Visit_Thread;

   ------------------
   -- Visit_Data --
   ------------------

   procedure Visit_Data (E : Node_Id) is
   begin
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      Append_Node_To_List (Map_Data (E), XTN.Subitems (Resources_Node));
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      Visit_Subcomponents_Of (E);
   end Visit_Data;

   ----------------------------
   -- Visit_Process_Instance --
   ----------------------------

   procedure Visit_Process (E : Node_Id) is
   begin
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      Append_Node_To_List (Map_Process (E), XTN.Subitems (Address_Node));
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      Visit_Subcomponents_Of (E);
   end Visit_Process;

   ---------------------
   -- Visit_Processor --
   ---------------------

   procedure Visit_Processor (E : Node_Id) is
   begin
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      Append_Node_To_List (Map_Processor (E), XTN.Subitems (Processors_Node));
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      Visit_Subcomponents_Of (E);
   end Visit_Processor;

   ------------------
   -- Visit_System --
   ------------------

   procedure Visit_System (E : Node_Id) is
      P : Node_Id;
      U : Node_Id;
   begin
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      if E = Root_System_Node then
         P := Map_HI_Node (E);
         Push_Entity (P);

         U := Map_HI_Unit (E);
         Push_Entity (U);

         --  A cheddar XML file is made of one cheddar node, with several
         --  children: tasks (AADL tasks), processors (AADL processors),
         --  address_spaces (AADL processes), resources (AADL data
         --  components).

         --  <!ELEMENT cheddar (processors,
         --                     (address_spaces)?,
         --                     (tasks)?,
         --                     ((event_analyzers)?
         --                      |(networks)?
         --                      |(buffers)?
         --                      |(resources)?
         --                      |(messages)?),
         --                     (dependencies)?)
         --  >

         if Cheddar_Node = No_Node then
            Cheddar_Node := Make_XML_Node ("cheddar");
            Append_Node_To_List
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              (Cheddar_Node,
               XTN.Subitems (XTN.Root_Node (XTN.XML_File (U))));
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         end if;

         if Processors_Node = No_Node then
            Processors_Node := Make_XML_Node ("processors");
            Append_Node_To_List (Processors_Node, XTN.Subitems (Cheddar_Node));
         end if;

         if Address_Node = No_Node then
            Address_Node := Make_XML_Node ("address_spaces");
            Append_Node_To_List (Address_Node, XTN.Subitems (Cheddar_Node));
         end if;

         if Tasks_Node = No_Node then
            Tasks_Node := Make_XML_Node ("tasks");
            Append_Node_To_List (Tasks_Node, XTN.Subitems (Cheddar_Node));
         end if;

         if Buffers_Node = No_Node then
            Buffers_Node := Make_XML_Node ("buffers");
            Append_Node_To_List (Buffers_Node, XTN.Subitems (Cheddar_Node));
         end if;

         if Resources_Node = No_Node then
            Resources_Node := Make_XML_Node ("resources");
            Append_Node_To_List (Resources_Node, XTN.Subitems (Cheddar_Node));
         end if;

         if Dependencies_Node = No_Node then
            Dependencies_Node := Make_XML_Node ("dependencies");
            Append_Node_To_List
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              (Dependencies_Node,
               XTN.Subitems (Cheddar_Node));
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         end if;
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      end if;

      Visit_Subcomponents_Of (E);

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      if E = Root_System_Node then
         Pop_Entity;
         Pop_Entity; --  A
      end if;
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   end Visit_System;

end Ocarina.Backends.Cheddar.Main;