lib/Gruntmaster/Daemon.pm

   1 package Gruntmaster::Daemon;
   2
   3 use 5.014000;
   4 use strict;
   5 use warnings;
   6
   7 our $VERSION = '5999.000_004';
   8
   9 use Gruntmaster::Daemon::Constants qw/ERR/;
  10 use Gruntmaster::Daemon::Format qw/prepare_files stopvms/;
  11
  12 use File::Basename qw/fileparse/;
  13 use File::Temp qw/tempdir/;
  14 use JSON qw/decode_json encode_json/;
  15 use Sys::Hostname qw/hostname/;
  16 use Time::HiRes qw/time/;
  17 use Try::Tiny;
  18 use Log::Log4perl qw/get_logger/;
  19
  20 use constant PAGE_SIZE => 10;
  21 use constant FORMAT_EXTENSION => {
  22         C => 'c',
  23         CPP => 'cpp',
  24         GCCGO => 'go',
  25         GOLANG => 'go',
  26         HASKELL => 'hs',
  27         MONO => 'cs',
  28         JAVA => 'java',
  29         PASCAL => 'pas',
  30         PERL => 'pl',
  31         PYTHON => 'py',
  32 };
  33
  34 ##################################################
  35
  36 my $db;
  37
  38 sub safe_can {
  39         my ($type, $sub, $name) = @_;
  40
  41         return unless $name =~ /^\w+$/s;
  42         my $pkg = __PACKAGE__ . "::${type}::${name}";
  43         eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@");
  44         $pkg->can($sub) or get_logger->logdie("No such \l$type: '$name'");
  45 }
  46
  47 sub process{
  48         my ($job, $jobr) = @_;
  49
  50         my @results;
  51         my @full_results = ();
  52         my $meta;
  53         our $errors = '';
  54         try {
  55                 if (ref $job) {
  56                         $meta = $job;
  57                 } else {
  58                         $meta = {
  59                                 problem => $jobr->problem->id,
  60                                 files => {
  61                                         prog => {
  62                                                 name => 'prog.' . $jobr->extension,
  63                                                 format => $jobr->format,
  64                                                 content => $jobr->source,
  65                                         },
  66                                 },
  67                                 map { $_ => $jobr->problem->get_column($_) } qw/generator runner judge testcnt timeout olimit/
  68                         };
  69                         $meta->{tests} = decode_json $jobr->problem->tests if $meta->{runner} eq 'File';
  70
  71                         $meta->{files}{ver} = {
  72                                 name => 'ver.' . FORMAT_EXTENSION->{$jobr->problem->verformat},
  73                                 format => $jobr->problem->verformat,
  74                                 content => $jobr->problem->versource,
  75                         } if $jobr->problem->verformat;
  76                 }
  77
  78                 prepare_files $meta;
  79                 chomp $errors;
  80
  81                 my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_\n"} qw/files generator runner judge testcnt/;
  82
  83                 $generator = safe_can Generator => generate => $generator;
  84                 $runner = safe_can Runner => run => $runner;
  85                 $judge = safe_can Judge => judge => $judge;
  86
  87                 for my $test (1 .. $testcnt) {
  88                         my $start_time = time;
  89                         my $result;
  90                         try {
  91                                 $generator->($test, $meta);
  92                                 $result = $runner->($test, $meta);
  93                         } catch {
  94                                 $result = $_;
  95                                 unless (ref $result) {
  96                                         chomp $result;
  97                                         $result = [ERR, $result];
  98                                 }
  99                         };
 100
 101                         if (ref $result) {
 102                                 get_logger->trace("Test $test result is " . $result->[1]);
 103                                 push @full_results, {id => $test, result => $result->[0], result_text => $result->[1], time => time - $start_time}
 104                         } else {
 105                                 get_logger->trace("Test $test result is $result");
 106                                 push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time}
 107                         }
 108                         push @results, $result;
 109                         last if $meta->{judge} eq 'Absolute' && ref $result
 110                 }
 111
 112                 my %results = $judge->(@results);
 113                 $meta->{$_} = $results{$_} for keys %results;
 114                 $meta->{results} = \@full_results
 115         } catch {
 116                 s/(.*) at .*/$1/s;
 117                 chomp;
 118                 $meta->{result} = -1;
 119                 $meta->{result_text} = $_;
 120         };
 121         stopvms;
 122
 123         get_logger->info('Job result: ' . $meta->{result_text});
 124         return unless $jobr;
 125         $jobr->update({
 126                 result => $meta->{result},
 127                 result_text => $meta->{result_text},
 128                 ($meta->{results} ? (results => encode_json $meta->{results}) : ()),
 129                 $errors ? (errors => $errors) : ()
 130         });
 131
 132         my $solved = $meta->{result} ? 0 : 1;
 133         my $status = $db->problem_statuses->find($jobr->owner, $jobr->problem);
 134         $db->problem_statuses->update_or_create({
 135                 problem => $jobr->problem,
 136                 owner   => $jobr->owner,
 137                 job     => $jobr->id,
 138                 solved  => $solved}) if !$jobr->problem->is_private;
 139 }
 140
 141 sub got_job{
 142         my $job = $_[0];
 143         my $id = $job->id;
 144         get_logger->debug("Taking job $id...");
 145         my $daemon = hostname . ":$$";
 146         $job->update({daemon => $daemon});
 147         #if (set_job_daemon $job, hostname . ":$$") {
 148         if (1) {
 149                 get_logger->debug("Succesfully taken job $id");
 150                 process $id, $job;
 151                 get_logger->debug("Job $id done");
 152         } else {
 153                 get_logger->debug("Job $id already taken");
 154         }
 155 }
 156
 157 sub run{
 158         require Gruntmaster::Data;
 159         $db = Gruntmaster::Data->connect($ENV{GRUNTMASTER_DSN} // 'dbi:Pg:');
 160         Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf');
 161         get_logger->info("gruntmasterd $VERSION started");
 162         my $dir = tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1;
 163         chmod 0711, $dir;
 164         chdir $dir;
 165         while (1) {
 166                 my $job = $db->jobs->search({daemon => undef}, {rows => 1})->first;
 167                 got_job $job if defined $job;
 168                 sleep 2 unless defined $job;
 169         }
 170 }
 171
 172 1;
 173 __END__
 174
 175 =head1 NAME
 176
 177 Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon
 178
 179 =head1 SYNOPSIS
 180
 181   use Gruntmaster::Daemon;
 182   Gruntmaster::Daemon->run;
 183
 184 =head1 DESCRIPTION
 185
 186 Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge.
 187
 188 =head1 AUTHOR
 189
 190 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
 191
 192 =head1 COPYRIGHT AND LICENSE
 193
 194 Copyright (C) 2014 by Marius Gavrilescu
 195
 196 This library is free software: you can redistribute it and/or modify
 197 it under the terms of the GNU Affero General Public License as published by
 198 the Free Software Foundation, either version 3 of the License, or
 199 (at your option) any later version.
 200
 201
 202 =cut