+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNAT RUNTIME COMPONENTS --
--- --
--- S Y S T E M . S E Q U E N T I A L _ I O --
--- --
--- B o d y --
--- --
--- $Revision: 1.1.16.2 $
--- --
--- Copyright (C) 1992-1998 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, 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, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNAT was originally developed by the GNAT team at New York University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
-with System.File_IO;
-with Unchecked_Deallocation;
-
-package body System.Sequential_IO is
-
- subtype AP is FCB.AFCB_Ptr;
-
- package FIO renames System.File_IO;
-
- -------------------
- -- AFCB_Allocate --
- -------------------
-
- function AFCB_Allocate
- (Control_Block : Sequential_AFCB)
- return FCB.AFCB_Ptr
- is
- begin
- return new Sequential_AFCB;
- end AFCB_Allocate;
-
- ----------------
- -- AFCB_Close --
- ----------------
-
- -- No special processing required for Sequential_IO close
-
- procedure AFCB_Close (File : access Sequential_AFCB) is
- begin
- null;
- end AFCB_Close;
-
- ---------------
- -- AFCB_Free --
- ---------------
-
- procedure AFCB_Free (File : access Sequential_AFCB) is
-
- type FCB_Ptr is access all Sequential_AFCB;
-
- FT : FCB_Ptr := FCB_Ptr (File);
-
- procedure Free is new
- Unchecked_Deallocation (Sequential_AFCB, FCB_Ptr);
-
- begin
- Free (FT);
- end AFCB_Free;
-
- ------------
- -- Create --
- ------------
-
- procedure Create
- (File : in out File_Type;
- Mode : in FCB.File_Mode := FCB.Out_File;
- Name : in String := "";
- Form : in String := "")
- is
- File_Control_Block : Sequential_AFCB;
-
- begin
- FIO.Open (File_Ptr => AP (File),
- Dummy_FCB => File_Control_Block,
- Mode => Mode,
- Name => Name,
- Form => Form,
- Amethod => 'Q',
- Creat => True,
- Text => False);
- end Create;
-
- ----------
- -- Open --
- ----------
-
- procedure Open
- (File : in out File_Type;
- Mode : in FCB.File_Mode;
- Name : in String;
- Form : in String := "")
- is
- File_Control_Block : Sequential_AFCB;
-
- begin
- FIO.Open (File_Ptr => AP (File),
- Dummy_FCB => File_Control_Block,
- Mode => Mode,
- Name => Name,
- Form => Form,
- Amethod => 'Q',
- Creat => False,
- Text => False);
- end Open;
-
- ----------
- -- Read --
- ----------
-
- -- Not used, since Sequential_IO files are not used as streams
-
- procedure Read
- (File : in out Sequential_AFCB;
- Item : out Ada.Streams.Stream_Element_Array;
- Last : out Ada.Streams.Stream_Element_Offset)
- is
- begin
- raise Program_Error;
- end Read;
-
- -----------
- -- Write --
- -----------
-
- -- Not used, since Sequential_IO files are not used as streams
-
- procedure Write
- (File : in out Sequential_AFCB;
- Item : in Ada.Streams.Stream_Element_Array)
- is
- begin
- raise Program_Error;
- end Write;
-
-end System.Sequential_IO;
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