1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT RUN-TIME COMPONENTS                         --
4--                                                                          --
5--                S Y S T E M . F I L E _ A T T R I B U T E S               --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--             Copyright (C) 2013-2018, Free Software Foundation, Inc.      --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32--  This package provides a binding to the GNAT file attribute query functions
33
34with System.OS_Constants;
35with System.Storage_Elements;
36
37package System.File_Attributes is
38
39   type File_Attributes is private;
40
41   procedure Reset_Attributes (A : access File_Attributes);
42
43   function Error_Attributes (A : access File_Attributes) return Integer;
44
45   function File_Exists_Attr
46     (N : System.Address;
47      A : access File_Attributes) return Integer;
48
49   function Is_Regular_File_Attr
50     (N : System.Address;
51      A : access File_Attributes) return Integer;
52
53   function Is_Directory_Attr
54     (N : System.Address;
55      A : access File_Attributes) return Integer;
56
57private
58   package SOSC renames System.OS_Constants;
59
60   type File_Attributes is new
61     System.Storage_Elements.Storage_Array
62       (1 .. SOSC.SIZEOF_struct_file_attributes);
63   for File_Attributes'Alignment use Standard'Maximum_Alignment;
64
65   pragma Import (C, Reset_Attributes,     "__gnat_reset_attributes");
66   pragma Import (C, Error_Attributes,     "__gnat_error_attributes");
67   pragma Import (C, File_Exists_Attr,     "__gnat_file_exists_attr");
68   pragma Import (C, Is_Regular_File_Attr, "__gnat_is_regular_file_attr");
69   pragma Import (C, Is_Directory_Attr,    "__gnat_is_directory_attr");
70
71end System.File_Attributes;
72