Subversion Repositories scarts

------------------------------------------------------------------------------

--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--                              O S I N T - B                               --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--          Copyright (C) 2001-2003 Free Software Foundation, Inc.          --

--                                                                          --

-- GNAT is free software;  you can  redistribute it  and/or modify it under --

-- terms of the  GNU General Public License as published  by the Free Soft- --

-- ware  Foundation;  either version 2,  or (at your option) any later ver- --

-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --

-- OUT 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 GNAT;  see file COPYING.  If not, write --

-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --

-- Boston, MA 02110-1301, USA.                                              --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

with Hostparm;

with Namet;   use Namet;

with Opt;     use Opt;

package body Osint.B is

   Binder_Output_Time_Stamps_Set : Boolean := False;

   Old_Binder_Output_Time_Stamp  : Time_Stamp_Type;

   New_Binder_Output_Time_Stamp  : Time_Stamp_Type;

   Recording_Time_From_Last_Bind : Boolean := False;

   -------------------------

   -- Close_Binder_Output --

   -------------------------

   procedure Close_Binder_Output is

      Status : Boolean;

   begin

      Close (Output_FD, Status);

      if not Status then

         Fail

           ("error while closing generated file ",

            Get_Name_String (Output_File_Name));

      end if;

      if Recording_Time_From_Last_Bind then

         New_Binder_Output_Time_Stamp  := File_Stamp (Output_File_Name);

         Binder_Output_Time_Stamps_Set := True;

      end if;

   end Close_Binder_Output;

   --------------------------

   -- Create_Binder_Output --

   --------------------------

   procedure Create_Binder_Output

     (Output_File_Name : String;

      Typ              : Character;

      Bfile            : out Name_Id)

   is

      File_Name : String_Ptr;

      Findex1   : Natural;

      Findex2   : Natural;

      Flength   : Natural;

   begin

      if Output_File_Name /= "" then

         Name_Buffer (Output_File_Name'Range) := Output_File_Name;

         Name_Buffer (Output_File_Name'Last + 1) := ASCII.NUL;

         if Typ = 's' then

            Name_Buffer (Output_File_Name'Last) := 's';

         end if;

         Name_Len := Output_File_Name'Last;

      else

         Name_Buffer (1) := 'b';

         File_Name := File_Names (Current_File_Name_Index);

         Findex1 := File_Name'First;

         --  The ali file might be specified by a full path name. However,

         --  the binder generated file should always be created in the

         --  current directory, so the path might need to be stripped away.

         --  In addition to the default directory_separator allow the '/' to

         --  act as separator since this is allowed in MS-DOS and OS2 ports.

         for J in reverse File_Name'Range loop

            if File_Name (J) = Directory_Separator

              or else File_Name (J) = '/'

            then

               Findex1 := J + 1;

               exit;

            end if;

         end loop;

         Findex2 := File_Name'Last;

         while File_Name (Findex2) /=  '.' loop

            Findex2 := Findex2 - 1;

         end loop;

         Flength := Findex2 - Findex1;

         if Maximum_File_Name_Length > 0 then

            --  Make room for the extra two characters in "b?"

            while Int (Flength) > Maximum_File_Name_Length - 2 loop

               Findex2 := Findex2 - 1;

               Flength := Findex2 - Findex1;

            end loop;

         end if;

         Name_Buffer (3 .. Flength + 2) := File_Name (Findex1 .. Findex2 - 1);

         Name_Buffer (Flength + 3) := '.';

         --  C bind file, name is b_xxx.c

         if Typ = 'c' then

            Name_Buffer (2) := '_';

            Name_Buffer (Flength + 4) := 'c';

            Name_Buffer (Flength + 5) := ASCII.NUL;

            Name_Len := Flength + 4;

         --  Ada bind file, name is b~xxx.adb or b~xxx.ads

         --  (with $ instead of ~ in VMS)

         else

            if Hostparm.OpenVMS then

               Name_Buffer (2) := '$';

            else

               Name_Buffer (2) := '~';

            end if;

            Name_Buffer (Flength + 4) := 'a';

            Name_Buffer (Flength + 5) := 'd';

            Name_Buffer (Flength + 6) := Typ;

            Name_Buffer (Flength + 7) := ASCII.NUL;

            Name_Len := Flength + 6;

         end if;

      end if;

      Bfile := Name_Find;

      if Recording_Time_From_Last_Bind then

         Old_Binder_Output_Time_Stamp := File_Stamp (Bfile);

      end if;

      Create_File_And_Check (Output_FD, Text);

   end Create_Binder_Output;

   --------------------

   -- More_Lib_Files --

   --------------------

   function More_Lib_Files return Boolean renames  More_Files;

   ------------------------

   -- Next_Main_Lib_File --

   ------------------------

   function Next_Main_Lib_File return File_Name_Type renames Next_Main_File;

   --------------------------------

   -- Record_Time_From_Last_Bind --

   --------------------------------

   procedure Record_Time_From_Last_Bind is

   begin

      Recording_Time_From_Last_Bind := True;

   end Record_Time_From_Last_Bind;

   -------------------------

   -- Time_From_Last_Bind --

   -------------------------

   function Time_From_Last_Bind return Nat is

      Old_Y  : Nat;

      Old_M  : Nat;

      Old_D  : Nat;

      Old_H  : Nat;

      Old_Mi : Nat;

      Old_S  : Nat;

      New_Y  : Nat;

      New_M  : Nat;

      New_D  : Nat;

      New_H  : Nat;

      New_Mi : Nat;

      New_S  : Nat;

      type Month_Data is array (Int range 1 .. 12) of Int;

      Cumul : constant Month_Data := (0, 0, 3, 3, 4, 4, 5, 5, 5, 6, 6, 7);

      --  Represents the difference in days from a period compared to the

      --  same period if all months had 31 days, i.e:

      --

      --    Cumul (m) = 31x(m-1) - (number of days from 01/01 to m/01)

      Res : Int;

   begin

      if not Recording_Time_From_Last_Bind

        or else not Binder_Output_Time_Stamps_Set

        or else Old_Binder_Output_Time_Stamp = Empty_Time_Stamp

      then

         return Nat'Last;

      end if;

      Split_Time_Stamp

       (Old_Binder_Output_Time_Stamp,

        Old_Y, Old_M, Old_D, Old_H, Old_Mi, Old_S);

      Split_Time_Stamp

       (New_Binder_Output_Time_Stamp,

        New_Y, New_M, New_D, New_H, New_Mi, New_S);

      Res := New_Mi - Old_Mi;

      --  60 minutes in an hour

      Res := Res + 60 * (New_H  - Old_H);

      --  24 hours in a day

      Res := Res + 60 * 24 * (New_D  - Old_D);

      --  Almost 31 days in a month

      Res := Res + 60 * 24 *

        (31 * (New_M - Old_M) - Cumul (New_M) + Cumul (Old_M));

      --  365 days in a year

      Res := Res + 60 * 24 * 365 * (New_Y - Old_Y);

      return Res;

   end Time_From_Last_Bind;

   -----------------------

   -- Write_Binder_Info --

   -----------------------

   procedure Write_Binder_Info (Info : String) renames Write_Info;

begin

   Set_Program (Binder);

end Osint.B;