taste-concurrency_view.adb 24.9 KB
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--  *************************** kazoo ***********************  --
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--  (c) 2019 European Space Agency - maxime.perrotin@esa.int
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--  LGPL license, see LICENSE file

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with Ada.Directories,
     Ada.IO_Exceptions,
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     Ada.Exceptions,
     Ada.Characters.Latin_1;
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use Ada.Directories;

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package body TASTE.Concurrency_View is

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   Newline : Character renames Ada.Characters.Latin_1.LF;

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   procedure Debug_Dump (CV : Taste_Concurrency_View; Output : File_Type) is
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      procedure Dump_Partition (Partition : CV_Partition) is
      begin
         for Block of Partition.Blocks loop
            Put_Line (Output, "Protected Block : " & To_String (Block.Name));
            for Provided of Block.Provided loop
               Put_Line (Output, " |_ PI : " & To_String (Provided.Name));
            end loop;
            for Required of Block.Required loop
               Put_Line (Output, " |_ RI : " & To_String (Required.Name));
            end loop;
            for Thread of Block.Calling_Threads loop
               Put_Line (Output, " |_ Calling_Thread : " & Thread);
            end loop;
            if Block.Node.Has_Value then
               Put_Line (Output, " |_ Node : "
                         & To_String (Block.Node.Unsafe_Just.Name));
               declare
                  P : constant Taste_Partition :=
                    Block.Node.Unsafe_Just.Find_Partition
                      (To_String (Block.Name)).Unsafe_Just;
               begin
                  Put_Line (Output, " |_ Partition : " & To_String (P.Name));
                  Put_Line (Output, "   |_ Coverage       : "
                            & P.Coverage'Img);
                  Put_Line (Output, "   |_ Package        : "
                            & To_String (P.Package_Name));
                  Put_Line (Output, "   |_ CPU Name       : "
                            & To_String (P.CPU_Name));
                  Put_Line (Output, "   |_ CPU Platform   : "
                            & P.CPU_Platform'Img);
                  Put_Line (Output, "   |_ CPU Classifier : "
                            & To_String (P.CPU_Classifier));
               end;
            end if;
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         end loop;
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         for Thread of Partition.Threads loop
            Put_Line (Output, "Thread : " & To_String (Thread.Name));
            Put_Line (Output, " |_ Port : "
                      & To_String (Thread.Entry_Port_Name));
            Put_Line (Output, " |_ Protected Block : "
                      & To_String (Thread.Protected_Block_Name));
            Put_Line (Output, " |_ Node : "
                      & To_String (Thread.Node.Value_Or
                        (Taste_Node'(Name   => US ("(none)"),
                                     others => <>)).Name));
            for Out_Port of Thread.Output_Ports loop
               Put_Line (Output, " |_ Output port remote thread : "
                         & To_String (Out_Port.Remote_Thread));
               Put_Line (Output, " |_ Output port remote PI : "
                         & To_String (Out_Port.Remote_PI));
            end loop;
         end loop;
      end Dump_Partition;
   begin
      for Node of CV.Nodes loop
         for Partition of Node.Partitions loop
            Dump_Partition (Partition);
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         end loop;
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      end loop;
   end Debug_Dump;

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   --  This function translates a protected block into a template
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   function Prepare_Template (B : Protected_Block) return Block_As_Template is
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      Calling_Threads : Tag;
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      Result          : Block_As_Template;
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   begin
      for Thread of B.Calling_Threads loop
         Calling_Threads := Calling_Threads & Thread;
      end loop;

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      for PI of B.Provided loop
         declare
            Basic : constant Translate_Set := PI.PI.To_Template
              & Assoc ("Protected_Block_Name", To_String (PI.Name))
              & Assoc ("Caller_Is_Local", PI.Local_Caller);
         begin
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            if PI.PI.RCM = Protected_Operation then
               Result.Protected_Provided.Append (Basic);
            else
               Result.Unprotected_Provided.Append (Basic);
            end if;
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         end;
      end loop;

      for RI of B.Required loop
         Result.Required.Append (RI.To_Template);
      end loop;

      Result.Header := +Assoc  ("Name",            To_String (B.Name))
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                       & Assoc ("Language",        B.Language)
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                       & Assoc ("Calling_Threads", Calling_Threads)
                       & Assoc ("Node_Name",       To_String (B.Node.Value_Or
                         (Taste_Node'(Name => US (""), others => <>)).Name));
      return Result;
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   end Prepare_Template;
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   --  This function translates a thread definition into a template
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   function To_Template (T : AADL_Thread) return Translate_Set is
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      Remote_Thread    : Vector_Tag;
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      RI_Port_Name     : Vector_Tag;  --  Name of the local RI (= port name)
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      Remote_PI        : Vector_Tag;  --  Name of the remote PI
      Remote_PI_Sort   : Vector_Tag;  --  ASN.1 type of the parameter
      Remote_PI_Module : Vector_Tag;  --  ASN.1 module containing the type
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   begin
      for Out_Port of T.Output_Ports loop
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         RI_Port_Name  := RI_Port_Name & Out_Port.Name;
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         Remote_Thread := Remote_Thread & To_String (Out_Port.Remote_Thread);
         Remote_PI     := Remote_PI     & To_String (Out_Port.Remote_PI);
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         --  Set the Asn.1 module and type of the optional RI parameter
         if Out_Port.RI.Params.Length > 0 then
            Remote_PI_Sort := Remote_PI_Sort
              & Out_Port.RI.Params.First_Element.Sort;
            Remote_PI_Module := Remote_PI_Module
              & Out_Port.RI.Params.First_Element.ASN1_Module;
         else
            Remote_PI_Sort   := Remote_PI_Sort   & "";
            Remote_PI_Module := Remote_PI_Module & "";
         end if;
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      end loop;

      return Result : constant Translate_Set :=
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        T.PI.To_Template   --  Template of the PI used to create the thread
        & Assoc ("Thread_Name",       To_String (T.Name))
        & Assoc ("Entry_Port_Name",   To_String (T.Entry_Port_Name))
        & Assoc ("RCM",               To_String (T.RCM))
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        & Assoc ("Need_Mutex",        T.Need_Mutex)
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        & Assoc ("Pro_Block_Name",    To_String (T.Protected_Block_Name))
        & Assoc ("Node_Name",         To_String (T.Node.Value_Or
          (Taste_Node'(Name => US (""), others => <>)).Name))
        & Assoc ("Remote_Threads",    Remote_Thread)
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        & Assoc ("RI_Port_Names",     RI_Port_Name)
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        & Assoc ("Remote_PIs",        Remote_PI)
        & Assoc ("Remote_PI_Sorts",   Remote_PI_Sort)
        & Assoc ("Remote_PI_Modules", Remote_PI_Module);
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   end To_Template;
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   --  Generate the code by iterating over template folders
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   procedure Generate_Code (CV : Taste_Concurrency_View)
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   is
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      Prefix   : constant String := CV.Base_Template_Path.Element
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        & "templates/concurrency_view";
      --  To iterate over template folders
      ST       : Search_Type;
      Current  : Directory_Entry_Type;
      Filter   : constant Filter_Type := (Directory => True,
                                          others    => False);
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      Output_File      : File_Type;

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      CV_Out_Dir  : constant String  :=
        CV.Base_Output_Path.Element & "/concurrency_view/";
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      --  Tags that are built over the whole system
      --  and cleant up between each template folder:
      Threads          : Unbounded_String;
      All_Thread_Names : Tag;  --  Complete list of threads
      All_Target_Names : Tag;  --  List of all targets used (AADL packages)
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   begin
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      Start_Search (Search    => ST,
                    Pattern   => "",
                    Directory => Prefix,
                    Filter    => Filter);

      if not More_Entries (ST) then
         --  On Unix, this will never happen because "." and ".." are part
         --  of the search result. We'll only get an IO Error if the
         --  concurrency_view folder itself does not exist
         raise Concurrency_View_Error with
           "No folders with templates for concurrency view";
      end if;

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      --  Iterate over the folders containing template files
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      while More_Entries (ST) loop
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         --  Clean-up system-wise tags before the next template folder:
         Threads := US ("");
         Clear (All_Thread_Names);
         Clear (All_Target_Names);

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         Get_Next_Entry (ST, Current);

         --  Ignore Unix special directories
         if Simple_Name (Current) = "." or Simple_Name (Current) = ".." then
            goto continue;
         end if;

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         declare
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            Path  : constant String  := Full_Name (Current);

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            function Generate_Partition (Node_Name      : String;
                                         Partition_Name : String)
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                                         return String
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            is
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               Partition       : constant CV_Partition :=
                 CV.Nodes (Node_Name).Partitions (Partition_Name);
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               Thread_Names    : Tag;
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               Block_Names     : Vector_Tag;
               Block_Languages : Vector_Tag;
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               Blocks          : Unbounded_String;
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               Partition_Assoc : Translate_Set;
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               --  Connections between threads:
               Thread_Src_Name : Vector_Tag;
               Thread_Src_Port : Vector_Tag;
               Thread_Dst_Name : Vector_Tag;
               Thread_Dst_Port : Vector_Tag;
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               --  Optionally generate partition code in separate files
               --  (if filepart.tmplt is present and contains a filename)
               File_Id         : constant String := Path & "/filepart.tmplt";
               Part_Check      : constant Boolean := Exists (File_Id);
               Part_Tag        : constant Translate_Set :=
                 +Assoc ("Partition_Name", Partition_Name);
               Part_File_Name  : constant String :=
                 (if Part_Check then Strip_String (Parse (File_Id, Part_Tag))
                  else "");
               Part_Content    : Unbounded_String;
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            begin
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               for T of Partition.Threads loop
                  declare
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                     --  There is no "&" operator for Translate sets...
                     function Join_Sets (S1, S2 : Translate_Set)
                                         return Translate_Set is
                        Result : Translate_Set := S1;
                     begin
                        Insert (Result, S2);
                        return Result;
                     end Join_Sets;

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                     --  Render each thread
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                     Name         : constant String := To_String (T.Name);
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                     Thread_Assoc : constant Translate_Set :=
                       Join_Sets (T.To_Template, CV.Configuration.To_Template);
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                     Result       : constant String :=
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                       (Parse (Path & "/thread.tmplt", Thread_Assoc));
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                     --  Optionally generate thread code in separate files
                     --  (if filethread.tmplt present and contains a filename)
                     Thread_File_Id   : constant String :=
                       Path & "/filethread.tmplt";
                     Thread_Check     : constant Boolean :=
                       Exists (Thread_File_Id);
                     Thread_Tag       : constant Translate_Set :=
                       +Assoc ("Thread_Name", Name);
                     Thread_File_Name : constant String :=
                       (if Thread_Check
                        then Strip_String (Parse (Thread_File_Id, Thread_Tag))
                        else "");
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                  begin
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                     Threads      := Threads & Newline & Result;
                     Thread_Names := Thread_Names & Name;
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                     All_Thread_Names := All_Thread_Names & Name;
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                     for P of T.Output_Ports loop
                        Thread_Src_Name := Thread_Src_Name & Name;
                        Thread_Src_Port := Thread_Src_Port
                          & To_String (P.Name);
                        Thread_Dst_Name := Thread_Dst_Name
                          & To_String (P.Remote_Thread);
                        Thread_Dst_Port := Thread_Dst_Port
                          & To_String (P.Remote_PI);
                     end loop;
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                     --  Save the content of the thread in a file
                     --  (if required at template folder level)
                     if Thread_File_Name /= "" then
                        Create_Path (CV_Out_Dir & Node_Name);
                        Create (File => Output_File,
                                Mode => Out_File,
                                Name =>
                                  CV_Out_Dir & Node_Name
                                & "/" & Thread_File_Name);
                        Put_Line (Output_File, Result);
                        Close (Output_File);
                     end if;
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                  end;
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               end loop;
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               for B of Partition.Blocks loop
                  declare
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                     Block_Name   : constant String := To_String (B.Name);
                     Tmpl         : constant Block_As_Template :=
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                       B.Prepare_Template;
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                     Block_Assoc  : Translate_Set := Tmpl.Header;
                     Pro_PI_Tag   : Unbounded_String;
                     Unpro_PI_Tag : Unbounded_String;
                     RI_Tag       : Unbounded_String;
                     Result       : Unbounded_String;
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                     --  Optionally generate block code in separate files
                     --  (if fileblock.tmplt present and contains a filename)
                     Block_File_Id   : constant String :=
                       Path & "/fileblock.tmplt";
                     Block_Check     : constant Boolean :=
                       Exists (Block_File_Id);
                     Block_Tag       : constant Translate_Set :=
                       +Assoc ("Block_Name", B.Name);
                     Block_File_Name : constant String :=
                       (if Block_Check
                        then Strip_String (Parse (Block_File_Id, Block_Tag))
                        else "");
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                  begin
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                     Block_Names     := Block_Names & Block_Name;
                     Block_Languages := Block_Languages & B.Language;

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                     for PI_Assoc of Tmpl.Protected_Provided loop
                        Pro_PI_Tag := Pro_PI_Tag & Newline
                          & String'(Parse (Path & "/pi.tmplt", PI_Assoc));
                     end loop;
                     for PI_Assoc of Tmpl.Unprotected_Provided loop
                        Unpro_PI_Tag := Unpro_PI_Tag & Newline
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                          & String'(Parse (Path & "/pi.tmplt", PI_Assoc));
                     end loop;
                     for RI_Assoc of Tmpl.Required loop
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                        RI_Tag := RI_Tag & Newline
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                          & String'(Parse (Path & "/ri.tmplt", RI_Assoc));
                     end loop;
                     Block_Assoc := Block_Assoc
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                       & Assoc ("Protected_PIs",   Pro_PI_Tag)
                       & Assoc ("Unprotected_PIs", Unpro_PI_Tag)
                       & Assoc ("Required",        RI_Tag);
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                     Result := Parse (Path & "/block.tmplt", Block_Assoc);

                     Blocks := Blocks & Newline & To_String (Result);

                     --  Save the content of the block in a file
                     --  (if required at template folder level)
                     if Block_File_Name /= "" then
                        Create_Path (CV_Out_Dir & Node_Name);
                        Create (File => Output_File,
                                Mode => Out_File,
                                Name => CV_Out_Dir & Node_Name
                                        & "/" & Block_File_Name);
                        Put_Line (Output_File, To_String (Result));
                        Close (Output_File);
                     end if;
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                  end;
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               end loop;
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               --  Association includes Name, Coverage, CPU Info, etc.
               --  (see taste-deployment_view.ads for the complete list)
               Partition_Assoc := Partition.Deployment_Partition.To_Template
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                 & Assoc ("Threads",         Threads)
                 & Assoc ("Thread_Names",    Thread_Names)
                 & Assoc ("Node_Name",       Node_Name)
                 & Assoc ("Blocks",          Blocks)
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                 & Assoc ("Block_Names",     Block_Names)
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                 & Assoc ("Block_Languages", Block_Languages)
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                 & Assoc ("Thread_Src_Name", Thread_Src_Name)
                 & Assoc ("Thread_Src_Port", Thread_Src_Port)
                 & Assoc ("Thread_Dst_Name", Thread_Dst_Name)
                 & Assoc ("Thread_Dst_Port", Thread_Dst_Port);
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               All_Target_Names := All_Target_Names
                 & String'(Get (Get (Partition_Assoc, "Package_Name")));

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               Part_Content :=
                 Parse (Path & "/partition.tmplt", Partition_Assoc);

               --  Save the content of the partition in a file
               --  (if required at template folder level)
               if Part_File_Name /= "" then
                  Create_Path (CV_Out_Dir & Node_Name);
                  Create (File => Output_File,
                          Mode => Out_File,
                          Name =>
                            CV_Out_Dir & Node_Name & "/" & Part_File_Name);
                  Put_Line (Output_File, To_String (Part_Content));
                  Close (Output_File);
               end if;

               return To_String (Part_Content);
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            end Generate_Partition;
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            --  Generate the code for one node
            function Generate_Node (Node_Name : String) return String is
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               Partitions      : Unbounded_String;
               Partition_Names : Tag;
               Node_Assoc      : Translate_Set;
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            begin
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               for Partition in CV.Nodes (Node_Name).Partitions.Iterate loop
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                  Partition_Names := Partition_Names
                    & CV_Partitions.Key (Partition);
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                  Partitions := Partitions & Newline
                    & Generate_Partition
                    (Partition_Name => CV_Partitions.Key (Partition),
                     Node_Name      => Node_Name);
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               end loop;
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               Node_Assoc := +Assoc ("Partitions", Partitions)
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                 & Assoc ("Partition_Names", Partition_Names)
                 & Assoc ("Node_Name", Node_Name)
                 & Assoc ("CPU_Name",
                         CV.Nodes (Node_Name).Deployment_Node.CPU_Name)
                 & Assoc ("CPU_Platform",
                         CV.Nodes (Node_Name).Deployment_Node.CPU_Platform'Img)
                 & Assoc ("CPU_Classifier",
                         CV.Nodes (Node_Name).Deployment_Node.CPU_Classifier)
                 & Assoc ("Ada_Runtime",
                         CV.Nodes (Node_Name).Deployment_Node.Ada_Runtime);
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               return Parse (Path & "/node.tmplt", Node_Assoc);
            end Generate_Node;
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            Nodes           : Unbounded_String;
            Tmpl_File       : constant String  := Path & "/filesys.tmplt";
            Tmpl_Sys        : constant String  := Path & "/system.tmplt";
            Valid_Dir       : constant Boolean := Exists (Tmpl_File);
            File_Sys        : constant String  :=
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              (if Valid_Dir then Strip_String (Parse (Tmpl_File)) else "");
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            Trig_Sys        : constant Boolean := Exists (Tmpl_Sys);
            Set_Sys         : Translate_Set;
            Node_Names      : Vector_Tag;  --  List of nodes
            Node_CPU        : Vector_Tag;  --  Corresponding CPU name
            Node_CPU_Cls    : Vector_Tag;  --  Corresponding CPU classifier
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            Partition_Names : Vector_Tag;  --  List of processes
            Partition_Node  : Vector_Tag;  --  Corresponding node name
            Partition_CPU   : Vector_Tag;  --  Corresponding CPU name
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         begin
            for Node in CV.Nodes.Iterate loop
               declare
                  Node_Name    : constant String := CV_Nodes.Key (Node);
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                  Output_Dir   : constant String := CV_Out_Dir & Node_Name;
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                  Do_It        : constant Boolean :=
                    Exists (Path & "/filenode.tmplt");
                  Filename_Set : constant Translate_Set :=
                    +Assoc ("Node_Name", Node_Name);
                  --  Get output file name from template
                  File_Name    : constant String :=
                    (if Do_It then
                        Strip_String
                       (Parse (Path & "/filenode.tmplt", Filename_Set))
                     else "");
                  --  Check if file already exists
                  Present      : constant Boolean :=
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                    (File_Name /= ""
                     and then Exists (Output_Dir & "/" & File_Name));
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                  Trig_Tmpl    : constant Translate_Set :=
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                    CV.Configuration.To_Template
                    & Assoc ("Filename_Is_Present", Present);

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                  Trigger      : constant Boolean :=
                    (Node_Name /= "interfaceview"
                     and then Exists (Path & "/trigger.tmplt") and then
                     Strip_String
                       (Parse (Path & "/trigger.tmplt", Trig_Tmpl)) = "TRUE");
                  Node_Content : constant String :=
                    (if Trigger then Generate_Node (Node_Name)
                     else "");
               begin
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                  if Node_Name /= "interfaceview" then
                     Put_Debug (Path & " :" & Trigger'Img
                               & " (" & Node_Name & ")");
                     Put_Debug (Strip_String
                               (Parse (Path & "/trigger.tmplt",
                                  Trig_Tmpl)));
                  end if;

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                  if Trigger then
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                     --  Associate node name, CPU name and CPU classifier
                     --  (this is needed for AADL backends)
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                     Node_Names := Node_Names & Node_Name;
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                     Node_CPU := Node_CPU
                       & CV.Nodes (Node_Name).Deployment_Node.CPU_Name;
                     Node_CPU_Cls := Node_CPU_Cls
                       & CV.Nodes (Node_Name).Deployment_Node.CPU_Classifier;

                     --  Associate partition name, corresponding node and CPU
                     --  for AADL backends
                     for Partition in CV.Nodes (Node_Name).Partitions.Iterate
                     loop
                        Partition_Names := Partition_Names
                          & CV_Partitions.Key (Partition);
                        Partition_CPU := Partition_CPU
                          & CV_Partitions.Element (Partition)
                          .Deployment_Partition.CPU_Name;
                        Partition_Node := Partition_Node & Node_Name;
                     end loop;

                     Nodes := Nodes & Newline & Node_Content;
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                     if File_Name /= "" then
                        Create_Path (Output_Dir);
                        Create (File => Output_File,
                                Mode => Out_File,
                                Name => Output_Dir & "/" & File_Name);
                        Put_Line (Output_File, Node_Content);
                        Close (Output_File);
                     end if;
                  end if;
               end;
            end loop;
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            if Trig_Sys and File_Sys /= "" and Nodes /= "" then
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               Set_Sys := CV.Configuration.To_Template
                 & Assoc ("Nodes",       Nodes)
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                 & Assoc ("Node_Names",          Node_Names)
                 & Assoc ("Node_CPU",            Node_CPU)
                 & Assoc ("Node_CPU_Classifier", Node_CPU_Cls)
                 & Assoc ("Partition_Names",     Partition_Names)
                 & Assoc ("Partition_Node",      Partition_Node)
                 & Assoc ("Partition_CPU",       Partition_CPU)
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                 & Assoc ("Threads",             Threads)
                 & Assoc ("Thread_Names",        All_Thread_Names)
                 & Assoc ("Target_Packages",     All_Target_Names);
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               Create_Path (CV_Out_Dir);
               Create (File => Output_File,
                       Mode => Out_File,
                       Name => CV_Out_Dir & File_Sys);
               Put_Line (Output_File, Parse (Tmpl_Sys, Set_Sys));
               Close (Output_File);
            end if;
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         end;
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         <<continue>>
      end loop;
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      End_Search (ST);
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   end Generate_Code;
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   procedure Generate_CV (CV : Taste_Concurrency_View) is
   begin
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      --  In this first iteration Nodes are generated in standalone files,
      --  and they include their processes. It would be useful to be able
      --  to decide if processes could also have their own files, since
      --  in the future they may be more than one process per node (for TSP).
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      CV.Generate_Code;
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   exception
      when Error : Concurrency_View_Error | Ada.IO_Exceptions.Name_Error =>
         Put_Error ("Concurrency View : "
                    & Ada.Exceptions.Exception_Message (Error));
         raise Quit_Taste;
   end Generate_CV;
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end TASTE.Concurrency_View;