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[gruntmaster-daemon.git] / lib / Gruntmaster / Daemon / Format.pm
1 package Gruntmaster::Daemon::Format;
2
3 use 5.014000;
4 use strict;
5 use warnings;
6 use parent qw/Exporter/;
7 no if $] > 5.017011, warnings => 'experimental::smartmatch';
8
9 use POSIX qw//;
10 use File::Basename qw/fileparse/;
11 use Gruntmaster::Daemon::Constants qw/TLE OLE DIED NZX/;
12 use Log::Log4perl qw/get_logger/;
13 use Time::HiRes qw/alarm/;
14 use List::MoreUtils qw/natatime/;
15 use IPC::Signal qw/sig_name sig_num/;
16 use IPC::Open3 qw/open3/;
17 use File::Spec::Functions qw/devnull/;
18 use Fcntl qw/F_GETFD F_SETFD FD_CLOEXEC/;
19
20 our $VERSION = '0.001';
21 our @EXPORT_OK = qw/mkrun/;
22
23 ##################################################
24
25 sub command_and_args{
26 my ($format, $basename) = @_;
27
28 given($format) {
29 "./$basename" when [qw/C CPP PASCAL/];
30 "./$basename.exe" when 'MONO';
31 "java $basename" when 'JAVA';
32 "perl $basename" when 'PERL';
33 "python $basename" when 'PYTHON';
34 default { die "Don't know how to execute format $format" }
35 }
36 }
37
38 sub mkrun{
39 my $format = shift;
40 sub{
41 my ($name, %args) = @_;
42 my $basename = fileparse $name, qr/\.[^.]*/;
43 my $ret = fork // die 'Cannot fork';
44 if ($ret) {
45 my $tle;
46 local $SIG{ALRM} = sub { kill KILL => $ret; $tle = 1};
47 alarm $args{timeout} if exists $args{timeout};
48 wait;
49 alarm 0;
50 my $sig = $? & 127;
51 my $signame = sig_name $sig;
52 die [TLE, "Time Limit Exceeded"] if $tle;
53 die [OLE, 'Output Limit Exceeded'] if $sig && $signame eq 'XFSZ';
54 die [DIED, "Crash (SIG$signame)"] if $sig;
55 die [NZX, "Non-zero exit status: " . ($? >> 8)] if $?;
56 } else {
57 my @fds = exists $args{fds} ? @{$args{fds}} : ();
58 $^F = 50;
59 POSIX::close $_ for 0 .. $^F;
60 my $it = natatime 2, @fds;
61 while (my ($fd, $file) = $it->()) {
62 open my $fh, $file or die $!;
63 my $oldfd = fileno $fh;
64 if ($oldfd != $fd) {
65 POSIX::dup2 $oldfd, $fd or die $!;
66 POSIX::close $oldfd or die $!;
67 }
68 }
69 exec 'gruntmaster-exec', $args{mlimit} // 0, $args{olimit} // 0, command_and_args($format, $basename), exists $args{args} ? @{$args{args}} : ();
70 }
71 }
72 }
73
74 1
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