dos_compilers/Logitech Modula-2 v1.1/DISKFILE.DEF
2024-06-30 15:43:04 -07:00

54 lines
1.2 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

(* Version 1.10, Nov 1984 *)
DEFINITION MODULE DiskFiles;
(*
Interface to disk file functions of the underlying OS.
[Private module of the Modula-2 system.]
The default drive 'DK:', and drives 'A:' through 'P:'
are supported under DOS or CP/M-86. This driver provides
buffering. The maximum number of open files is 12.
Derived from the Lilith Modula-2 system developed by the
group of Prof. N. Wirth at ETH Zurich, Switzerland.
*)
FROM FileSystem IMPORT File;
EXPORT QUALIFIED
InitDiskSystem,
DiskFileProc, DiskDirProc;
PROCEDURE InitDiskSystem;
(*
- Initialize mediums for further disk file operations
This procedure has to be imported by FileSystem. This has
the side-effect, that this module is referenced and will
therefore be linked to the user program.
*)
PROCEDURE DiskFileProc (VAR f: File);
(*
- low-level interface for disk operations within a file
This procedure is passed as a parameter to the procedure
CreateMedium in FileSystem.
*)
PROCEDURE DiskDirProc (VAR f: File;
name: ARRAY OF CHAR);
(*
- low-level interface for disk operations within a
directory
This procedure is passed as a parameter to the procedure
CreateMedium in FileSystem.
*)
END DiskFiles.