------------------------------------------------------------------------------
-- --
--- GNAT RUNTIME COMPONENTS --
+-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . D I R E C T _ I O --
-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, 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- --
-- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- --
------------------------------------------------------------------------------
-with Ada.IO_Exceptions; use Ada.IO_Exceptions;
-with Interfaces.C_Streams; use Interfaces.C_Streams;
-with System; use System;
+with Ada.IO_Exceptions; use Ada.IO_Exceptions;
+with Interfaces.C_Streams; use Interfaces.C_Streams;
+with System; use System;
+with System.CRTL;
with System.File_IO;
with System.Soft_Links;
-with Unchecked_Deallocation;
+with Ada.Unchecked_Deallocation;
package body System.Direct_IO is
subtype AP is FCB.AFCB_Ptr;
use type FCB.Shared_Status_Type;
+ use type System.CRTL.long;
+ use type System.CRTL.size_t;
+
-----------------------
-- Local Subprograms --
-----------------------
- procedure Set_Position (File : in File_Type);
+ procedure Set_Position (File : File_Type);
-- Sets file position pointer according to value of current index
-------------------
-------------------
function AFCB_Allocate (Control_Block : Direct_AFCB) return FCB.AFCB_Ptr is
- pragma Warnings (Off, Control_Block);
+ pragma Unreferenced (Control_Block);
begin
return new Direct_AFCB;
-- No special processing required for Direct_IO close
- procedure AFCB_Close (File : access Direct_AFCB) is
- pragma Warnings (Off, File);
+ procedure AFCB_Close (File : not null access Direct_AFCB) is
+ pragma Unreferenced (File);
begin
null;
-- AFCB_Free --
---------------
- procedure AFCB_Free (File : access Direct_AFCB) is
+ procedure AFCB_Free (File : not null access Direct_AFCB) is
type FCB_Ptr is access all Direct_AFCB;
FT : FCB_Ptr := FCB_Ptr (File);
procedure Free is new
- Unchecked_Deallocation (Direct_AFCB, FCB_Ptr);
+ Ada.Unchecked_Deallocation (Direct_AFCB, FCB_Ptr);
begin
Free (FT);
procedure Create
(File : in out File_Type;
- Mode : in FCB.File_Mode := FCB.Inout_File;
- Name : in String := "";
- Form : in String := "")
+ Mode : FCB.File_Mode := FCB.Inout_File;
+ Name : String := "";
+ Form : String := "")
is
- File_Control_Block : Direct_AFCB;
+ Dummy_File_Control_Block : 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 => File_Control_Block,
+ Dummy_FCB => Dummy_File_Control_Block,
Mode => Mode,
Name => Name,
Form => Form,
-- End_Of_File --
-----------------
- function End_Of_File (File : in File_Type) return Boolean is
+ function End_Of_File (File : File_Type) return Boolean is
begin
FIO.Check_Read_Status (AP (File));
return Count (File.Index) > Size (File);
-- Index --
-----------
- function Index (File : in File_Type) return Positive_Count is
+ function Index (File : File_Type) return Positive_Count is
begin
FIO.Check_File_Open (AP (File));
return Count (File.Index);
procedure Open
(File : in out File_Type;
- Mode : in FCB.File_Mode;
- Name : in String;
- Form : in String := "")
+ Mode : FCB.File_Mode;
+ Name : String;
+ Form : String := "")
is
- File_Control_Block : Direct_AFCB;
+ Dummy_File_Control_Block : 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 => File_Control_Block,
+ Dummy_FCB => Dummy_File_Control_Block,
Mode => Mode,
Name => Name,
Form => Form,
----------
procedure Read
- (File : in File_Type;
+ (File : File_Type;
Item : Address;
- Size : in Interfaces.C_Streams.size_t;
- From : in Positive_Count)
+ Size : Interfaces.C_Streams.size_t;
+ From : Positive_Count)
is
begin
Set_Index (File, From);
end Read;
procedure Read
- (File : in File_Type;
+ (File : File_Type;
Item : Address;
- Size : in Interfaces.C_Streams.size_t)
+ Size : Interfaces.C_Streams.size_t)
is
begin
FIO.Check_Read_Status (AP (File));
-- Reset --
-----------
- procedure Reset (File : in out File_Type; Mode : in FCB.File_Mode) is
+ procedure Reset (File : in out File_Type; Mode : FCB.File_Mode) is
begin
FIO.Reset (AP (File), Mode);
File.Index := 1;
-- Set_Index --
---------------
- procedure Set_Index (File : in File_Type; To : in Positive_Count) is
+ procedure Set_Index (File : File_Type; To : Positive_Count) is
begin
FIO.Check_File_Open (AP (File));
File.Index := Count (To);
-- Set_Position --
------------------
- procedure Set_Position (File : in File_Type) is
+ procedure Set_Position (File : File_Type) is
begin
if fseek
(File.Stream, long (File.Bytes) *
-- Size --
----------
- function Size (File : in File_Type) return Count is
+ function Size (File : File_Type) return Count is
begin
FIO.Check_File_Open (AP (File));
File.Last_Op := Op_Other;
procedure Write
(File : File_Type;
Item : Address;
- Size : in Interfaces.C_Streams.size_t;
+ Size : Interfaces.C_Streams.size_t;
Zeroes : System.Storage_Elements.Storage_Array)
is
procedure Write
(File : in out Direct_AFCB;
- Item : in Ada.Streams.Stream_Element_Array)
+ Item : Ada.Streams.Stream_Element_Array)
is
begin
raise Program_Error;
OSDN Git Service
