source: example/io/tty-echo.cfa@ d9b7b66

Last change on this file since d9b7b66 was 376946e, checked in by Thierry Delisle <tdelisle@…>, 5 years ago

Added io example for using non-blocking ttys.
(Won't work without io_uring)

  • Property mode set to 100644
File size: 1.2 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2020 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// io.cfa --
8//
9// Author : Thierry Delisle
10// Created On : Thu Feb 18 20:31:00 2021
11// Last Modified By :
12// Last Modified On :
13// Update Count :
14//
15
16#include <fstream.hfa>
17#include <iofwd.hfa>
18#include <time.hfa>
19#include <thread.hfa>
20
21thread EchoThread {};
22void main(EchoThread & this) {
23 char buffer[100];
24 for() {
25 int ret = cfa_read(0, buffer + 1, 97, 0);
26 if(ret < 0) {
27 serr | "Failed to read from fd 0";
28 exit(1);
29 }
30 if(ret == 0) return;
31 buffer[0] = '\'';
32 buffer[ret] = '\'';
33 buffer[ret+1] = '\n';
34 ret = cfa_write(1, buffer, ret + 2, 0);
35 if(ret < 0) {
36 serr | "Failed to write from fd 1 (ET)";
37 exit(1);
38 }
39 }
40}
41
42thread HeartBeatThread {};
43void main(HeartBeatThread & this) {
44 for() {
45 waitfor( ^?{} : this) {
46 return;
47 }
48 or else;
49 int ret = cfa_write(1, ".", 1, 0);
50 if(ret < 0) {
51 serr | "Failed to write from fd 1 (ET)";
52 exit(1);
53 }
54 sleep(5`s);
55 }
56}
57
58int main() {
59 HeartBeatThread hb;
60 {
61 EchoThread et;
62 }
63}
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