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1 package Gruntmaster::Daemon::Runner::Interactive;
2
3 use 5.014000;
4 use strict;
5 use warnings;
6
7 use File::Slurp qw/slurp/;
8 use Gruntmaster::Daemon::Constants qw/WA/;
9 use Log::Log4perl qw/get_logger/;
10 use POSIX qw/mkfifo/;
11 use Try::Tiny;
12
13 our $VERSION = '5999.000_002';
14
15 ##################################################
16
17 sub run{
18 my ($test, $meta) = @_;
19 get_logger->trace("Running on test $test...");
20
21 mkfifo 'fifo1', 0600 or die $! unless -e 'fifo1';
22 mkfifo 'fifo2', 0600 or die $! unless -e 'fifo2';
23
24 my $ret = fork // get_logger->logdie("Fork failed: $!");
25 if ($ret) {
26 try {
27 $meta->{files}{prog}{run}->($meta->{files}{prog}{name}, fds => [qw/0 fifo1 1 >fifo2/], map {defined $meta->{$_} ? ($_ => $meta->{$_}) : () } qw/timeout mlimit/);
28 } catch {
29 die $_
30 } finally {
31 waitpid $ret, 0;
32 };
33 die [WA, "Wrong Answer"] if $?;
34 } else {
35 try {
36 $meta->{files}{ver}{run}->($meta->{files}{ver}{name}, fds => [qw/1 >fifo1 0 fifo2 4 >result/], args => [$test], map {defined $meta->{$_} ? ($_ => $meta->{$_}) : () } qw/timeout mlimit/);
37 } catch {
38 exit 1;
39 };
40 exit
41 }
42
43 unlink 'fifo1';
44 unlink 'fifo2';
45
46 scalar slurp 'result'
47 }
48
49 1;
50 __END__
51
52 =encoding utf-8
53
54 =head1 NAME
55
56 Gruntmaster::Daemon::Runner::Interactive - Make an interactive verifier talk to the program
57
58 =head1 SYNOPSIS
59
60 use Gruntmaster::Daemon::Runner::Interactive;
61 Gruntmaster::Daemon::Runner::Interactive::run(5, $meta);
62
63 =head1 DESCRIPTION
64
65 B<WARNING: This runner is experimental!>
66
67 Gruntmaster::Daemon::Runner::Interactive is a runner which runs the program and an interactive verifier in parallel, connecting each program's STDIN to the other's STDOUT. The verifier, C<< $meta->{files}{ver} >>, should return nonzero if the program gives an incorrect answer, or print the test score to fd 4 then return 0 if the answer is correct.
68
69 =head1 AUTHOR
70
71 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
72
73 =head1 COPYRIGHT AND LICENSE
74
75 Copyright (C) 2014 by Marius Gavrilescu
76
77 This library is free software: you can redistribute it and/or modify
78 it under the terms of the GNU Affero General Public License as published by
79 the Free Software Foundation, either version 3 of the License, or
80 (at your option) any later version.
81
82
83 =cut
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