1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
(* IO.def provides Read, Write, Errors procedures mapping onto 0, 1 and 2.
Copyright (C) 2001-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
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/>. *)
DEFINITION MODULE IO ;
(*
Author : Gaius Mulley
Title : IO
Date : 3/4/86 [$Date: 2010/10/03 19:01:10 $]
SYSTEM : GNU Modula-2
Description: provides Read, Write, Errors procedures that map onto UNIX
file descriptors 0, 1 and 2. This is achieved by using
FIO if we are in buffered mode and using libc.write
if not.
Version : $Revision: 1.6 $
*)
EXPORT QUALIFIED Read, Write, Error,
UnBufferedMode, BufferedMode,
EchoOn, EchoOff ;
PROCEDURE Read (VAR ch: CHAR) ;
PROCEDURE Write (ch: CHAR) ;
PROCEDURE Error (ch: CHAR) ;
(*
UnBufferedMode - places file descriptor, fd, into an unbuffered mode.
*)
PROCEDURE UnBufferedMode (fd: INTEGER; input: BOOLEAN) ;
(*
BufferedMode - places file descriptor, fd, into a buffered mode.
*)
PROCEDURE BufferedMode (fd: INTEGER; input: BOOLEAN) ;
(*
EchoOn - turns on echoing for file descriptor, fd. This
only really makes sence for a file descriptor opened
for terminal input or maybe some specific file descriptor
which is attached to a particular piece of hardware.
*)
PROCEDURE EchoOn (fd: INTEGER; input: BOOLEAN) ;
(*
EchoOff - turns off echoing for file descriptor, fd. This
only really makes sence for a file descriptor opened
for terminal input or maybe some specific file descriptor
which is attached to a particular piece of hardware.
*)
PROCEDURE EchoOff (fd: INTEGER; input: BOOLEAN) ;
END IO.
|
