-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2004 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2010, 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- --
+-- 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. 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. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- 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. --
+-- 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 Ada.Streams;
with Interfaces.C_Streams;
+with System.CRTL;
package System.File_Control_Block is
-- Used to hold name and form strings
type File_Mode is (In_File, Inout_File, Out_File, Append_File);
+ subtype Read_File_Mode is File_Mode range In_File .. Inout_File;
-- File mode (union of file modes permitted by individual packages,
-- the types File_Mode in the individual packages are declared to
-- allow easy conversion to and from this general type.
-- stream with the semantics specified in the RM for file sharing. All
-- files opened with "shared=no" will have their own stream.
- type AFCB;
+ type AFCB is tagged;
type AFCB_Ptr is access all AFCB'Class;
type AFCB is abstract new Ada.Streams.Root_Stream_Type with record
-- files, and also for standard files (stdin, stdout, stderr). The
-- name is always null-terminated if it is non-null.
+ Encoding : System.CRTL.Filename_Encoding;
+ -- Encoding used to specified the filename
+
Form : Pstring;
-- A pointer to the form string. This is the string used in the
-- fopen call, and must be supplied by the caller (there are no
-- that the argument Control_Block is not used other than as the argument
-- that controls which version of AFCB_Allocate is called.
- procedure AFCB_Close (File : access AFCB) is abstract;
+ procedure AFCB_Close (File : not null access AFCB) is abstract;
-- Performs any specialized close actions on a file before the file is
-- actually closed at the system level. This is called by Close, and
-- the reason we need the primitive operation is for the automatic
-- close operations done as part of finalization.
- procedure AFCB_Free (File : access AFCB) is abstract;
+ procedure AFCB_Free (File : not null access AFCB) is abstract;
-- Frees the AFCB referenced by the given parameter. It is not necessary
-- to free the strings referenced by the Form and Name fields, but if the
-- extension has any other heap objects, they must be freed as well. This
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