package Gruntmaster::Daemon; use 5.014000; use strict; use warnings; our $VERSION = '5999.000_004'; use Gruntmaster::Daemon::Constants qw/ERR/; use Gruntmaster::Daemon::Format qw/prepare_files stopvms/; use File::Slurp qw/read_file/; use File::Temp qw/tempdir/; use JSON qw/decode_json encode_json/; use Sys::Hostname qw/hostname/; use Time::HiRes qw/time/; use Try::Tiny; use Log::Log4perl qw/get_logger/; use constant FORMAT_EXTENSION => { C => 'c', CPP => 'cpp', GCCGO => 'go', GOLANG => 'go', GOLFSCRIPT => 'gs', HASKELL => 'hs', MONO => 'cs', JAVA => 'java', PASCAL => 'pas', PERL => 'pl', PYTHON => 'py', RUBY => 'rb', SBCL => 'l', }; ################################################## my $db; sub safe_can { my ($type, $sub, $name) = @_; get_logger->logdie("Invalid \l$type: '$name'") unless $name =~ /^\w+$/s; my $pkg = __PACKAGE__ . "::${type}::${name}"; eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@"); $pkg->can($sub) or get_logger->logdie("No such \l$type: '$name'"); } sub process{ my ($meta) = @_; my @results; my @full_results = (); our $errors = ''; try { prepare_files $meta; chomp $errors; my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_\n"} qw/files generator runner judge testcnt/; $generator = safe_can Generator => generate => $generator; $runner = safe_can Runner => run => $runner; $judge = safe_can Judge => judge => $judge; for my $test (1 .. $testcnt) { my $start_time = time; my $result; unlink 'result'; try { $generator->($test, $meta); $result = $runner->($test, $meta); } catch { $result = $_; unless (ref $result) { chomp $result; $result = [ERR, $result]; } }; if (ref $result) { my $result_text = $result->[1]; $result_text .= ': ' . read_file 'result' if -s 'result'; get_logger->trace("Test $test result is " . $result_text); push @full_results, {id => $test, result => $result->[0], result_text => $result_text, time => time - $start_time} } else { get_logger->trace("Test $test result is $result"); push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time} } push @results, $result; last if $meta->{judge} eq 'Absolute' && ref $result } my %results = $judge->(@results); $meta->{$_} = $results{$_} for keys %results; $meta->{results} = \@full_results } catch { s/(.*) at .*/$1/s; chomp; $meta->{result} = -1; $meta->{result_text} = $_; }; stopvms; $meta->{errors} = $errors; get_logger->info('Job result: ' . $meta->{result_text}); } sub process_job { my ($job) = @_; my $meta = { problem => $job->problem->id, files => { prog => { name => 'prog.' . $job->extension, format => $job->format, content => $job->source, }, }, map { $_ => $job->problem->get_column($_) } qw/generator runner judge precnt testcnt timeout olimit/ }; my $limit_override = $job->result_source->schema->limits->find($meta->{problem}, $job->format); $meta->{timeout} = $limit_override->timeout if $limit_override; $meta->{tests} = decode_json $job->problem->tests if $meta->{runner} eq 'File'; delete $meta->{precnt} unless $job->contest && $job->contest->is_running; $meta->{testcnt} = $meta->{precnt} if $meta->{precnt}; $meta->{files}{ver} = { name => 'ver.' . FORMAT_EXTENSION->{$job->problem->verformat}, format => $job->problem->verformat, content => $job->problem->versource, } if $job->problem->verformat; process $meta; $meta->{result_text} .= ' (pretests)' if $meta->{precnt}; $job->update({ result => $meta->{result}, result_text => $meta->{result_text}, ($meta->{results} ? (results => encode_json $meta->{results}) : ()), $meta->{errors} ? (errors => $meta->{errors}) : () }); my $solved = $meta->{result} ? 0 : 1; my $status = $db->problem_statuses->find($job->owner, $job->problem); $db->problem_statuses->update_or_create({ problem => $job->problem, owner => $job->owner, job => $job->id, solved => $solved}) if !$job->problem->private; } sub got_job{ my $job = $_[0]; my $id = $job->id; get_logger->debug("Taking job $id..."); my $daemon = hostname . ":$$"; $job->update({daemon => $daemon}, {where => {daemon => undef}})->discard_changes; if ($job->daemon eq $daemon) { get_logger->debug("Succesfully taken job $id"); process_job $job; get_logger->debug("Job $id done"); } else { get_logger->debug("Job $id already taken by " . $job->daemon); } } sub run{ require Gruntmaster::Data; $db = Gruntmaster::Data->connect($ENV{GRUNTMASTER_DSN} // 'dbi:Pg:'); Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf'); get_logger->info("gruntmasterd $VERSION started"); my $dir = tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1; chmod 0711, $dir; chdir $dir; while (1) { my $job = $db->jobs->search({daemon => undef}, {rows => 1})->first; got_job $job if defined $job; sleep 2 unless defined $job; } } 1; __END__ =head1 NAME Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon =head1 SYNOPSIS use Gruntmaster::Daemon; Gruntmaster::Daemon->run; =head1 DESCRIPTION Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge. =head1 AUTHOR Marius Gavrilescu Emarius@ieval.roE =head1 COPYRIGHT AND LICENSE Copyright (C) 2014 by Marius Gavrilescu This library is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. =cut