| 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 Time::HiRes qw/alarm/; |
| 13 | use List::MoreUtils qw/natatime/; |
| 14 | use IPC::Signal qw/sig_name sig_num/; |
| 15 | |
| 16 | our $VERSION = '0.001'; |
| 17 | our @EXPORT_OK = qw/mkrun/; |
| 18 | |
| 19 | ################################################## |
| 20 | |
| 21 | sub command_and_args{ |
| 22 | my ($format, $basename) = @_; |
| 23 | |
| 24 | given($format) { |
| 25 | "./$basename" when [qw/C CPP PASCAL/]; |
| 26 | "./$basename.exe" when 'MONO'; |
| 27 | "java $basename" when 'JAVA'; |
| 28 | "perl $basename" when 'PERL'; |
| 29 | "python $basename" when 'PYTHON'; |
| 30 | default { die "Don't know how to execute format $format" } |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | sub mkrun{ |
| 35 | my $format = shift; |
| 36 | sub{ |
| 37 | my ($name, %args) = @_; |
| 38 | my $basename = fileparse $name, qr/\.[^.]*/; |
| 39 | my $ret = fork // die 'Cannot fork'; |
| 40 | if ($ret) { |
| 41 | my $tle; |
| 42 | local $SIG{ALRM} = sub { kill KILL => $ret; $tle = 1}; |
| 43 | alarm $args{timeout} if exists $args{timeout}; |
| 44 | wait; |
| 45 | alarm 0; |
| 46 | my $sig = $? & 127; |
| 47 | my $signame = sig_name $sig; |
| 48 | die [TLE, "Time Limit Exceeded"] if $tle; |
| 49 | die [OLE, 'Output Limit Exceeded'] if $sig && $signame eq 'XFSZ'; |
| 50 | die [DIED, "Crash (SIG$signame)"] if $sig; |
| 51 | die [NZX, "Non-zero exit status: " . ($? >> 8)] if $?; |
| 52 | } else { |
| 53 | my @fds = exists $args{fds} ? @{$args{fds}} : (); |
| 54 | $^F = 50; |
| 55 | POSIX::close $_ for 0 .. $^F; |
| 56 | my $it = natatime 2, @fds; |
| 57 | while (my ($fd, $file) = $it->()) { |
| 58 | open my $fh, $file or die $!; |
| 59 | my $oldfd = fileno $fh; |
| 60 | if ($oldfd != $fd) { |
| 61 | POSIX::dup2 $oldfd, $fd or die $!; |
| 62 | POSIX::close $oldfd or die $!; |
| 63 | } |
| 64 | } |
| 65 | exec 'gruntmaster-exec', $args{mlimit} // 0, $args{olimit} // 0, command_and_args($format, $basename), exists $args{args} ? @{$args{args}} : (); |
| 66 | exit 42 |
| 67 | } |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | 1 |