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::Basename qw/fileparse/; 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 PAGE_SIZE => 10; use constant FORMAT_EXTENSION => { C => 'c', CPP => 'cpp', GCCGO => 'go', GOLANG => 'go', HASKELL => 'hs', MONO => 'cs', JAVA => 'java', PASCAL => 'pas', PERL => 'pl', PYTHON => 'py', }; ################################################## sub purge; my $db; sub safe_can_nodie { my ($type, $sub, $name) = @_; return unless $name =~ /^\w+$/s; my $pkg = __PACKAGE__ . "::${type}::${name}"; eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@"); $pkg->can($sub); } sub safe_can { my ($type, $sub, $name) = @_; safe_can_nodie @_ or get_logger->logdie("No such \l$type: '$name'"); } sub process{ my ($job, $jobr) = @_; my @results; my @full_results = (); my $meta; our $errors = ''; try { if (ref $job) { $meta = $job; } else { $meta = { problem => $jobr->problem->id, files => { prog => { name => 'prog.' . $jobr->extension, format => $jobr->format, content => $jobr->source, }, }, map { $_ => $jobr->problem->get_column($_) } qw/generator runner judge testcnt timeout olimit/ }; $meta->{tests} = decode_json $jobr->problem->tests if $meta->{runner} eq 'File'; $meta->{files}{ver} = { name => 'ver.' . FORMAT_EXTENSION->{$jobr->problem->verformat}, format => $jobr->problem->verformat, content => $jobr->problem->versource, } if $jobr->problem->verformat; } 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; try { $generator->($test, $meta); $result = $runner->($test, $meta); } catch { $result = $_; unless (ref $result) { chomp $result; $result = [ERR, $result]; } }; if (ref $result) { get_logger->trace("Test $test result is " . $result->[1]); push @full_results, {id => $test, result => $result->[0], result_text => $result->[1], 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; get_logger->info('Job result: ' . $meta->{result_text}); return unless $jobr; $jobr->update({ result => $meta->{result}, result_text => $meta->{result_text}, ($meta->{results} ? (results => encode_json $meta->{results}) : ()), $errors ? (errors => $errors) : () }); my $solved = $meta->{result} ? 0 : 1; my $status = $db->problem_statuses->find($jobr->owner, $jobr->problem); $db->problem_statuses->update_or_create({ problem => $jobr->problem, owner => $jobr->owner, job => $jobr->id, solved => $solved}); purge '/log/'; purge "/log/$job"; purge '/st/' . $jobr->contest if $jobr->contest; purge '/us/'; purge '/us/' . $jobr->owner; } sub got_job{ my $job = $_[0]; my $id = $job->id; get_logger->debug("Taking job $id..."); my $daemon = hostname . ":$$"; $job->update({daemon => $daemon}); #if (set_job_daemon $job, hostname . ":$$") { if (1) { get_logger->debug("Succesfully taken job $id"); process $id, $job; get_logger->debug("Job $id done"); } else { get_logger->debug("Job $id already taken"); } } sub run{ warn "No GRUNTMASTER_VM environment variable. Running without a VM is a security risk.\n" unless $ENV{GRUNTMASTER_VM}; require Gruntmaster::Data; $db = Gruntmaster::Data->connect('dbi:Pg:'); Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf'); get_logger->info("gruntmasterd $VERSION started"); chdir tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1; 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