21822d2c3514f69ff3a5061b53f40cb7ade2ccc2
[gruntmaster-daemon.git] / lib / Gruntmaster / Daemon / Runner / Interactive.pm
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 $meta->{files}{prog}{run}->($meta->{files}{prog}{name}, fds => [qw/0 fifo1 1 >fifo2/], map {defined $meta->{$_} ? ($_ => $meta->{$_}) : () } qw/timeout mlimit/);
27 waitpid $ret, 0;
28 die [WA, "Wrong Answer"] if $?;
29 } else {
30 try {
31 $meta->{files}{ver}{run}->($meta->{files}{ver}{name}, fds => [qw/1 >fifo1 0 fifo2 4 >result/]);
32 } catch {
33 exit 1;
34 };
35 exit
36 }
37
38 scalar slurp 'result'
39 }
40
41 1;
42 __END__
43
44 =encoding utf-8
45
46 =head1 NAME
47
48 Gruntmaster::Daemon::Runner::Interactive - Make an interactive verifier talk to the program
49
50 =head1 SYNOPSIS
51
52 use Gruntmaster::Daemon::Runner::Interactive;
53 Gruntmaster::Daemon::Runner::Interactive->run(5, $meta);
54
55 =head1 DESCRIPTION
56
57 B<WARNING: This runner is experimental!>
58
59 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}{int} >>, should return nonzero if the program gives an incorrect answer, and print the test score to fd 4 then return 0 if the answer is correct.
60
61 =head1 AUTHOR
62
63 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
64
65 =head1 COPYRIGHT AND LICENSE
66
67 Copyright (C) 2014 by Marius Gavrilescu
68
69 This library is free software: you can redistribute it and/or modify
70 it under the terms of the GNU Affero General Public License as published by
71 the Free Software Foundation, either version 3 of the License, or
72 (at your option) any later version.
73
74
75 =cut
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