File : aws-resources-files.ads


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

--                              Ada Web Server                              --

--                                                                          --

--                            Copyright (C) 2002                            --

--                                ACT-Europe                                --

--                                                                          --

--  Authors: Dmitriy Anisimkov - Pascal Obry                                --

--                                                                          --

--  This library is free software; you can redistribute it and/or modify    --

--  it under the terms of the GNU General Public License as published by    --

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--  your option) any later version.                                         --

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--  This library is distributed in the hope that it will be useful, but     --

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--  General Public License for more details.                                --

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--  You should have received a copy of the GNU General Public License       --

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--  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.          --

--                                                                          --

--  As a special exception, if other files instantiate generics from this   --

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--  covered by the GNU General Public License. This exception does not      --

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--  covered by the  GNU Public License.                                     --

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


--  $Id: aws-resources-files.ads,v 1.1 2003/10/05 19:59:58 Jano Exp $


with Ada.Streams.Stream_IO;

package AWS.Resources.Files is

   procedure Open
     (File :    out File_Type;
      Name : in     String;
      Form : in     String    := "");

   function Is_Regular_File (Name : in String) return Boolean;

   function File_Size
     (Name : in String)
      return Ada.Streams.Stream_Element_Offset;

   function File_Timestamp (Name : in String) return Ada.Calendar.Time;

private

   type Stream_File_Access is access Stream_IO.File_Type;

   Buffer_Size : constant := 8_192;

   type File_Tagged is new Resources.File_Tagged with record
      File    : Stream_IO.File_Type;
      Stream  : Stream_IO.Stream_Access;
      --  below are data for buffered access to the file.

      Buffer  : Stream_Element_Array (1 .. Buffer_Size);
      Current : Stream_Element_Offset := 1;
      Last    : Stream_Element_Offset := 0;
   end record;

   function End_Of_File (Resource : in File_Tagged) return Boolean;

   procedure Read
     (Resource : in out File_Tagged;
      Buffer   :    out Stream_Element_Array;
      Last     :    out Stream_Element_Offset);

   procedure Close (Resource : in out File_Tagged);

end AWS.Resources.Files;