[gruntmaster-daemon.git] / lib / Gruntmaster / Daemon / Format.pm

package Gruntmaster::Daemon::Format;

use 5.014000;
use strict;
use warnings;
use parent qw/Exporter/;
no if $] > 5.017011, warnings => 'experimental::smartmatch';

use POSIX qw//;
use File::Basename qw/fileparse/;
use Gruntmaster::Daemon::Constants qw/TLE OLE DIED NZX/;
use Log::Log4perl qw/get_logger/;
use Time::HiRes qw/alarm/;
use List::MoreUtils qw/natatime/;
use IPC::Signal qw/sig_name sig_num/;
use IPC::Open3 qw/open3/;
use File::Spec::Functions qw/devnull/;
use Fcntl qw/F_GETFD F_SETFD FD_CLOEXEC/;

our $VERSION = '0.001';
our @EXPORT_OK = qw/mkrun/;

##################################################

sub command_and_args{
	my ($format, $basename) = @_;

	given($format) {
		"./$basename" when [qw/C CPP PASCAL/];
		"./$basename.exe" when 'MONO';
		"java $basename" when 'JAVA';
		"perl $basename" when 'PERL';
		"python $basename" when 'PYTHON';
		default { die "Don't know how to execute format $format" }
	}
}

sub mkrun{
	my $format = shift;
	sub{
		my ($name, %args) = @_;
		my $basename = fileparse $name, qr/\.[^.]*/;
		my $ret = fork // die 'Cannot fork';
		if ($ret) {
			my $tle;
			local $SIG{ALRM} = sub { kill KILL => $ret; $tle = 1};
			alarm $args{timeout} if exists $args{timeout};
			wait;
			alarm 0;
			my $sig = $? & 127;
			my $signame = sig_name $sig;
			die [TLE, "Time Limit Exceeded"] if $tle;
			die [OLE, 'Output Limit Exceeded'] if $sig && $signame eq 'XFSZ';
			die [DIED, "Crash (SIG$signame)"] if $sig;
			die [NZX, "Non-zero exit status: " . ($? >> 8)] if $?;
		} else {
			my @fds = exists $args{fds} ? @{$args{fds}} : ();
			$^F = 50;
			POSIX::close $_ for 0 .. $^F;
			my $it = natatime 2, @fds;
			while (my ($fd, $file) = $it->()) {
				open my $fh, $file or die $!;
				my $oldfd = fileno $fh;
				if ($oldfd != $fd) {
					POSIX::dup2 $oldfd, $fd or die $!;
					POSIX::close $oldfd or die $!;
				}
			}
			exec 'gruntmaster-exec', $args{mlimit} // 0, $args{olimit} // 0, command_and_args($format, $basename), exists $args{args} ? @{$args{args}} : ();
			exit 42
		}
	}
}

1
Commit	Line	Data
	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	exit 42
	71	}
	72	}
	73	}
	74
	75	1