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5c5cd38a MG |
1 | package Gruntmaster::Daemon; |
2 | ||
3 | use 5.014000; | |
4 | use strict; | |
5 | use warnings; | |
6 | ||
d6a1ae0d | 7 | our $VERSION = '5999.000_002'; |
5c5cd38a MG |
8 | |
9 | use Gruntmaster::Daemon::Constants qw/ERR/; | |
ad77b7d3 | 10 | use Gruntmaster::Daemon::Format qw/prepare_files/; |
4dc6495c | 11 | use Gruntmaster::Data; |
5c5cd38a | 12 | |
ab436d78 | 13 | use File::Basename qw/fileparse/; |
ab436d78 | 14 | use File::Temp qw/tempdir/; |
be3e5b32 | 15 | use JSON qw/decode_json encode_json/; |
ab436d78 | 16 | use Sys::Hostname qw/hostname/; |
5c5cd38a MG |
17 | use Time::HiRes qw/time/; |
18 | use Try::Tiny; | |
5c5cd38a | 19 | use Log::Log4perl qw/get_logger/; |
064332cd | 20 | use LWP::UserAgent; |
5c5cd38a | 21 | |
adb44605 | 22 | use constant PAGE_SIZE => 10; |
6bf57d23 MG |
23 | use constant FORMAT_EXTENSION => { |
24 | C => 'c', | |
25 | CPP => 'cpp', | |
26 | MONO => 'cs', | |
27 | JAVA => 'java', | |
28 | PASCAL => 'pas', | |
29 | PERL => 'pl', | |
30 | PYTHON => 'py', | |
31 | }; | |
adb44605 | 32 | |
5c5cd38a MG |
33 | ################################################## |
34 | ||
7be5f054 | 35 | my $db; |
064332cd | 36 | my $ua = LWP::UserAgent->new; |
82657f57 | 37 | my @purge_hosts = exists $ENV{PURGE_HOSTS} ? split ' ', $ENV{PURGE_HOSTS} : (); |
064332cd | 38 | |
5c5cd38a | 39 | sub safe_can_nodie { |
a722431b | 40 | my ($type, $sub, $name) = @_; |
5c5cd38a | 41 | |
a722431b MG |
42 | return unless $name =~ /^\w+$/; |
43 | no strict 'refs'; | |
44 | my $pkg = __PACKAGE__ . "::${type}::${name}"; | |
45 | eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@"); | |
46 | $pkg->can($sub); | |
5c5cd38a MG |
47 | } |
48 | ||
49 | sub safe_can { | |
a722431b | 50 | my ($type, $sub, $name) = @_; |
5c5cd38a | 51 | |
a722431b | 52 | safe_can_nodie @_ or get_logger->logdie("No such \l$type: '$name'"); |
5c5cd38a MG |
53 | } |
54 | ||
064332cd | 55 | sub purge { |
5672831c | 56 | get_logger->trace("Purging $_[0]"); |
82657f57 MG |
57 | for my $host (@purge_hosts) { |
58 | my $req = HTTP::Request->new(PURGE => "http://$host$_[0]"); | |
59 | $ua->request($req) | |
60 | } | |
064332cd MG |
61 | } |
62 | ||
ab436d78 | 63 | sub process{ |
be3e5b32 | 64 | my ($job, $jobr) = @_; |
a722431b MG |
65 | |
66 | my @results; | |
67 | my @full_results = (); | |
be3e5b32 | 68 | my $meta; |
a722431b MG |
69 | our $errors = ''; |
70 | try { | |
7be5f054 MG |
71 | if (ref $job) { |
72 | $meta = $job; | |
73 | } else { | |
74 | $meta = { | |
75 | problem => $jobr->problem->id, | |
76 | files => { | |
77 | prog => { | |
78 | name => 'prog.' . $jobr->extension, | |
79 | format => $jobr->format, | |
80 | content => $jobr->source, | |
81 | }, | |
be3e5b32 | 82 | }, |
7be5f054 MG |
83 | map { $_ => $jobr->problem->get_column($_) } qw/generator runner judge testcnt timeout olimit/ |
84 | }; | |
85 | $meta->{tests} = decode_json $jobr->problem->tests if $meta->{runner} eq 'File'; | |
be3e5b32 | 86 | |
7be5f054 MG |
87 | $meta->{files}{ver} = { |
88 | name => 'ver.' . FORMAT_EXTENSION->{$jobr->problem->verformat}, | |
89 | format => $jobr->problem->verformat, | |
90 | content => $jobr->problem->versource, | |
91 | } if $jobr->problem->verformat; | |
92 | } | |
5c5cd38a | 93 | |
a722431b MG |
94 | prepare_files $meta; |
95 | chomp $errors; | |
96 | ||
97 | my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_"} qw/files generator runner judge testcnt/; | |
98 | ||
99 | $generator = safe_can Generator => generate => $generator; | |
100 | $runner = safe_can Runner => run => $runner; | |
101 | $judge = safe_can Judge => judge => $judge; | |
102 | ||
103 | for my $test (1 .. $testcnt) { | |
104 | my $start_time = time; | |
105 | my $result; | |
106 | try { | |
107 | $generator->($test, $meta); | |
108 | $result = $runner->($test, $meta); | |
109 | } catch { | |
110 | $result = $_; | |
111 | unless (ref $result) { | |
112 | chomp $result; | |
113 | $result = [ERR, $result]; | |
114 | } | |
115 | }; | |
116 | ||
117 | if (ref $result) { | |
118 | get_logger->trace("Test $test result is " . $result->[1]); | |
119 | push @full_results, {id => $test, result => $result->[0], result_text => $result->[1], time => time - $start_time} | |
120 | } else { | |
121 | get_logger->trace("Test $test result is $result"); | |
122 | push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time} | |
123 | } | |
124 | push @results, $result; | |
125 | last if $meta->{judge} eq 'Absolute' && ref $result | |
5c5cd38a | 126 | } |
5c5cd38a | 127 | |
a722431b MG |
128 | my %results = $judge->(@results); |
129 | $meta->{$_} = $results{$_} for keys %results; | |
7be5f054 | 130 | $meta->{results} = \@full_results |
a722431b MG |
131 | } catch { |
132 | s,(.*) at .*,$1,; | |
133 | chomp; | |
134 | $meta->{result} = -1; | |
135 | $meta->{result_text} = $_; | |
136 | }; | |
137 | ||
138 | get_logger->info("Job result: " . $meta->{result_text}); | |
7be5f054 | 139 | return unless $jobr; |
be3e5b32 MG |
140 | $jobr->update({ |
141 | result => $meta->{result}, | |
142 | result_text => $meta->{result_text}, | |
7be5f054 | 143 | results => encode_json $meta->{results}, |
be3e5b32 MG |
144 | $errors ? (errors => $errors) : () |
145 | }); | |
146 | ||
214632a8 | 147 | my $log = $jobr->contest ? 'ct/' . $jobr->contest->id . '/log' : 'log'; |
c9cdf09e | 148 | my $page = int (($job + PAGE_SIZE - 1) / PAGE_SIZE); |
a722431b | 149 | |
be3e5b32 | 150 | purge "/$log/$job"; |
a722431b MG |
151 | purge "/$log/"; |
152 | purge "/$log/st"; | |
be3e5b32 | 153 | purge "/$log/page/$_" for $page - 1, $page, $page + 1; |
ab436d78 MG |
154 | } |
155 | ||
156 | sub got_job{ | |
be3e5b32 MG |
157 | my $job = $_[0]; |
158 | my $id = $job->id; | |
159 | get_logger->debug("Taking job $id..."); | |
160 | my $daemon = hostname . ":$$"; | |
161 | $job->update({daemon => $daemon}); | |
162 | #if (set_job_daemon $job, hostname . ":$$") { | |
163 | if (1) { | |
164 | get_logger->debug("Succesfully taken job $id"); | |
165 | process $id, $job; | |
166 | get_logger->debug("Job $id done"); | |
ab436d78 | 167 | } else { |
be3e5b32 | 168 | get_logger->debug("Job $id already taken"); |
ab436d78 | 169 | } |
5c5cd38a MG |
170 | } |
171 | ||
172 | sub run{ | |
7be5f054 | 173 | $db = Gruntmaster::Data->connect('dbi:Pg:'); |
a722431b MG |
174 | Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf'); |
175 | get_logger->info("gruntmasterd $VERSION started"); | |
176 | chdir tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1; | |
be3e5b32 MG |
177 | while (1) { |
178 | my $job = $db->jobs->search({daemon => undef}, {rows => 1})->first; | |
179 | got_job $job if defined $job; | |
180 | sleep 2 unless defined $job; | |
181 | } | |
5c5cd38a MG |
182 | } |
183 | ||
184 | 1; | |
185 | __END__ | |
5c5cd38a MG |
186 | |
187 | =head1 NAME | |
188 | ||
bc372959 | 189 | Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon |
5c5cd38a MG |
190 | |
191 | =head1 SYNOPSIS | |
192 | ||
193 | use Gruntmaster::Daemon; | |
bc372959 | 194 | Gruntmaster::Daemon->run; |
5c5cd38a MG |
195 | |
196 | =head1 DESCRIPTION | |
197 | ||
bc372959 | 198 | Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge. |
5c5cd38a MG |
199 | |
200 | =head1 AUTHOR | |
201 | ||
bc372959 | 202 | Marius Gavrilescu E<lt>marius@ieval.roE<gt> |
5c5cd38a MG |
203 | |
204 | =head1 COPYRIGHT AND LICENSE | |
205 | ||
bc372959 | 206 | Copyright (C) 2014 by Marius Gavrilescu |
5c5cd38a | 207 | |
bc372959 MG |
208 | This library is free software: you can redistribute it and/or modify |
209 | it under the terms of the GNU Affero General Public License as published by | |
210 | the Free Software Foundation, either version 3 of the License, or | |
211 | (at your option) any later version. | |
5c5cd38a MG |
212 | |
213 | ||
214 | =cut |