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Diffstat (limited to 'gcc/ada/s-sequio.ads')
| -rw-r--r-- | gcc/ada/s-sequio.ads | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/gcc/ada/s-sequio.ads b/gcc/ada/s-sequio.ads new file mode 100644 index 000000000..5cbe3d92b --- /dev/null +++ b/gcc/ada/s-sequio.ads @@ -0,0 +1,78 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . S E Q U E N T I A L _ I O -- +-- -- +-- S p e c -- +-- -- +-- 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. -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains the declaration of the control block used for +-- Sequential_IO. This must be declared at the outer library level. It also +-- contains code that is shared between instances of Sequential_IO. + +with System.File_Control_Block; +with Ada.Streams; + +package System.Sequential_IO is + + package FCB renames System.File_Control_Block; + + type Sequential_AFCB is new FCB.AFCB with null record; + -- No additional fields required for Sequential_IO + + function AFCB_Allocate + (Control_Block : Sequential_AFCB) return FCB.AFCB_Ptr; + + procedure AFCB_Close (File : not null access Sequential_AFCB); + procedure AFCB_Free (File : not null access Sequential_AFCB); + + procedure Read + (File : in out Sequential_AFCB; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + -- Required overriding of Read, not actually used for Sequential_IO + + procedure Write + (File : in out Sequential_AFCB; + Item : Ada.Streams.Stream_Element_Array); + -- Required overriding of Write, not actually used for Sequential_IO + + type File_Type is access all Sequential_AFCB; + -- File_Type in individual instantiations is derived from this type + + procedure Create + (File : in out File_Type; + Mode : FCB.File_Mode := FCB.Out_File; + Name : String := ""; + Form : String := ""); + + procedure Open + (File : in out File_Type; + Mode : FCB.File_Mode; + Name : String; + Form : String := ""); + +end System.Sequential_IO; |