89 lines
3.8 KiB
Ada
89 lines
3.8 KiB
Ada
|
------------------------------------------------------------------------------
|
||
|
|
-- --
|
||
|
|
-- GNAT RUN-TIME COMPONENTS --
|
||
|
|
-- --
|
||
|
|
-- A D A . D I R E C T _ I O . C _ S T R E A M S --
|
||
|
|
-- --
|
||
|
|
-- B o d y --
|
||
|
|
-- --
|
||
|
|
-- Copyright (C) 1992-2009, 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 3, 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. --
|
||
|
|
-- --
|
||
|
|
-- As a special exception under Section 7 of GPL version 3, you are granted --
|
||
|
|
-- additional permissions described in the GCC Runtime Library Exception, --
|
||
|
|
-- version 3.1, as published by the Free Software Foundation. --
|
||
|
|
-- --
|
||
|
|
-- You should have received a copy of the GNU General Public License and --
|
||
|
|
-- a copy of the GCC Runtime Library Exception along with this program; --
|
||
|
|
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
|
||
|
|
-- <http://www.gnu.org/licenses/>. --
|
||
|
|
-- --
|
||
|
|
-- GNAT was originally developed by the GNAT team at New York University. --
|
||
|
|
-- Extensive contributions were provided by Ada Core Technologies Inc. --
|
||
|
|
-- --
|
||
|
|
------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
with Interfaces.C_Streams; use Interfaces.C_Streams;
|
||
|
|
with System.File_IO;
|
||
|
|
with System.File_Control_Block;
|
||
|
|
with System.Direct_IO;
|
||
|
|
with Ada.Unchecked_Conversion;
|
||
|
|
|
||
|
|
package body Ada.Direct_IO.C_Streams is
|
||
|
|
|
||
|
|
package FIO renames System.File_IO;
|
||
|
|
package FCB renames System.File_Control_Block;
|
||
|
|
package DIO renames System.Direct_IO;
|
||
|
|
|
||
|
|
subtype AP is FCB.AFCB_Ptr;
|
||
|
|
|
||
|
|
function To_FCB is new Ada.Unchecked_Conversion (File_Mode, FCB.File_Mode);
|
||
|
|
|
||
|
|
--------------
|
||
|
|
-- C_Stream --
|
||
|
|
--------------
|
||
|
|
|
||
|
|
function C_Stream (F : File_Type) return FILEs is
|
||
|
|
begin
|
||
|
|
FIO.Check_File_Open (AP (F));
|
||
|
|
return F.Stream;
|
||
|
|
end C_Stream;
|
||
|
|
|
||
|
|
----------
|
||
|
|
-- Open --
|
||
|
|
----------
|
||
|
|
|
||
|
|
procedure Open
|
||
|
|
(File : in out File_Type;
|
||
|
|
Mode : File_Mode;
|
||
|
|
C_Stream : FILEs;
|
||
|
|
Form : String := "";
|
||
|
|
Name : String := "")
|
||
|
|
is
|
||
|
|
Dummy_File_Control_Block : DIO.Direct_AFCB;
|
||
|
|
pragma Warnings (Off, Dummy_File_Control_Block);
|
||
|
|
-- Yes, we know this is never assigned a value, only the tag
|
||
|
|
-- is used for dispatching purposes, so that's expected.
|
||
|
|
|
||
|
|
begin
|
||
|
|
FIO.Open (File_Ptr => AP (File),
|
||
|
|
Dummy_FCB => Dummy_File_Control_Block,
|
||
|
|
Mode => To_FCB (Mode),
|
||
|
|
Name => Name,
|
||
|
|
Form => Form,
|
||
|
|
Amethod => 'D',
|
||
|
|
Creat => False,
|
||
|
|
Text => False,
|
||
|
|
C_Stream => C_Stream);
|
||
|
|
|
||
|
|
File.Bytes := Bytes;
|
||
|
|
end Open;
|
||
|
|
|
||
|
|
end Ada.Direct_IO.C_Streams;
|