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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 | sub purge; | |
37 | ||
38 | my $db; | |
39 | ||
40 | sub safe_can_nodie { | |
41 | my ($type, $sub, $name) = @_; | |
42 | ||
43 | return unless $name =~ /^\w+$/s; | |
44 | my $pkg = __PACKAGE__ . "::${type}::${name}"; | |
45 | eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@"); | |
46 | $pkg->can($sub); | |
47 | } | |
48 | ||
49 | sub safe_can { | |
50 | my ($type, $sub, $name) = @_; | |
51 | ||
52 | safe_can_nodie @_ or get_logger->logdie("No such \l$type: '$name'"); | |
53 | } | |
54 | ||
55 | sub process{ | |
56 | my ($job, $jobr) = @_; | |
57 | ||
58 | my @results; | |
59 | my @full_results = (); | |
60 | my $meta; | |
61 | our $errors = ''; | |
62 | try { | |
63 | if (ref $job) { | |
64 | $meta = $job; | |
65 | } else { | |
66 | $meta = { | |
67 | problem => $jobr->problem->id, | |
68 | files => { | |
69 | prog => { | |
70 | name => 'prog.' . $jobr->extension, | |
71 | format => $jobr->format, | |
72 | content => $jobr->source, | |
73 | }, | |
74 | }, | |
75 | map { $_ => $jobr->problem->get_column($_) } qw/generator runner judge testcnt timeout olimit/ | |
76 | }; | |
77 | $meta->{tests} = decode_json $jobr->problem->tests if $meta->{runner} eq 'File'; | |
78 | ||
79 | $meta->{files}{ver} = { | |
80 | name => 'ver.' . FORMAT_EXTENSION->{$jobr->problem->verformat}, | |
81 | format => $jobr->problem->verformat, | |
82 | content => $jobr->problem->versource, | |
83 | } if $jobr->problem->verformat; | |
84 | } | |
85 | ||
86 | prepare_files $meta; | |
87 | chomp $errors; | |
88 | ||
89 | my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_\n"} qw/files generator runner judge testcnt/; | |
90 | ||
91 | $generator = safe_can Generator => generate => $generator; | |
92 | $runner = safe_can Runner => run => $runner; | |
93 | $judge = safe_can Judge => judge => $judge; | |
94 | ||
95 | for my $test (1 .. $testcnt) { | |
96 | my $start_time = time; | |
97 | my $result; | |
98 | try { | |
99 | $generator->($test, $meta); | |
100 | $result = $runner->($test, $meta); | |
101 | } catch { | |
102 | $result = $_; | |
103 | unless (ref $result) { | |
104 | chomp $result; | |
105 | $result = [ERR, $result]; | |
106 | } | |
107 | }; | |
108 | ||
109 | if (ref $result) { | |
110 | get_logger->trace("Test $test result is " . $result->[1]); | |
111 | push @full_results, {id => $test, result => $result->[0], result_text => $result->[1], time => time - $start_time} | |
112 | } else { | |
113 | get_logger->trace("Test $test result is $result"); | |
114 | push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time} | |
115 | } | |
116 | push @results, $result; | |
117 | last if $meta->{judge} eq 'Absolute' && ref $result | |
118 | } | |
119 | ||
120 | my %results = $judge->(@results); | |
121 | $meta->{$_} = $results{$_} for keys %results; | |
122 | $meta->{results} = \@full_results | |
123 | } catch { | |
124 | s/(.*) at .*/$1/s; | |
125 | chomp; | |
126 | $meta->{result} = -1; | |
127 | $meta->{result_text} = $_; | |
128 | }; | |
129 | stopvms; | |
130 | ||
131 | get_logger->info('Job result: ' . $meta->{result_text}); | |
132 | return unless $jobr; | |
133 | $jobr->update({ | |
134 | result => $meta->{result}, | |
135 | result_text => $meta->{result_text}, | |
136 | ($meta->{results} ? (results => encode_json $meta->{results}) : ()), | |
137 | $errors ? (errors => $errors) : () | |
138 | }); | |
139 | ||
140 | my $solved = $meta->{result} ? 0 : 1; | |
141 | my $status = $db->problem_statuses->find($jobr->owner, $jobr->problem); | |
142 | $db->problem_statuses->update_or_create({ | |
143 | problem => $jobr->problem, | |
144 | owner => $jobr->owner, | |
145 | job => $jobr->id, | |
146 | solved => $solved}); | |
147 | ||
148 | purge '/log/'; | |
149 | purge "/log/$job"; | |
150 | purge '/st/' . $jobr->contest if $jobr->contest; | |
151 | purge '/us/'; | |
152 | purge '/us/' . $jobr->owner; | |
153 | } | |
154 | ||
155 | sub got_job{ | |
156 | my $job = $_[0]; | |
157 | my $id = $job->id; | |
158 | get_logger->debug("Taking job $id..."); | |
159 | my $daemon = hostname . ":$$"; | |
160 | $job->update({daemon => $daemon}); | |
161 | #if (set_job_daemon $job, hostname . ":$$") { | |
162 | if (1) { | |
163 | get_logger->debug("Succesfully taken job $id"); | |
164 | process $id, $job; | |
165 | get_logger->debug("Job $id done"); | |
166 | } else { | |
167 | get_logger->debug("Job $id already taken"); | |
168 | } | |
169 | } | |
170 | ||
171 | sub run{ | |
172 | warn "No GRUNTMASTER_VM environment variable. Running without a VM is a security risk.\n" unless $ENV{GRUNTMASTER_VM}; | |
173 | require Gruntmaster::Data; | |
174 | Gruntmaster::Data->import; | |
175 | $db = Gruntmaster::Data->connect('dbi:Pg:'); | |
176 | Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf'); | |
177 | get_logger->info("gruntmasterd $VERSION started"); | |
178 | chdir tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1; | |
179 | while (1) { | |
180 | my $job = $db->jobs->search({daemon => undef}, {rows => 1})->first; | |
181 | got_job $job if defined $job; | |
182 | sleep 2 unless defined $job; | |
183 | } | |
184 | } | |
185 | ||
186 | 1; | |
187 | __END__ | |
188 | ||
189 | =head1 NAME | |
190 | ||
191 | Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon | |
192 | ||
193 | =head1 SYNOPSIS | |
194 | ||
195 | use Gruntmaster::Daemon; | |
196 | Gruntmaster::Daemon->run; | |
197 | ||
198 | =head1 DESCRIPTION | |
199 | ||
200 | Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge. | |
201 | ||
202 | =head1 AUTHOR | |
203 | ||
204 | Marius Gavrilescu E<lt>marius@ieval.roE<gt> | |
205 | ||
206 | =head1 COPYRIGHT AND LICENSE | |
207 | ||
208 | Copyright (C) 2014 by Marius Gavrilescu | |
209 | ||
210 | This library is free software: you can redistribute it and/or modify | |
211 | it under the terms of the GNU Affero General Public License as published by | |
212 | the Free Software Foundation, either version 3 of the License, or | |
213 | (at your option) any later version. | |
214 | ||
215 | ||
216 | =cut |