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1 | package Gruntmaster::Daemon; | |
2 | ||
3 | use 5.014000; | |
4 | use strict; | |
5 | use warnings; | |
6 | ||
7 | our $VERSION = '5999.000_005'; | |
8 | ||
9 | use Gruntmaster::Daemon::Constants qw/ERR/; | |
10 | use Gruntmaster::Daemon::Format qw/prepare_files stopvms/; | |
11 | ||
12 | use File::Slurp qw/read_file/; | |
13 | use File::Temp qw/tempdir/; | |
14 | use JSON qw/decode_json encode_json/; | |
15 | use Sys::Hostname qw/hostname/; | |
16 | use Time::HiRes qw/time/; | |
17 | use Try::Tiny; | |
18 | use Log::Log4perl qw/get_logger/; | |
19 | ||
20 | use constant FORMAT_EXTENSION => { | |
21 | BRAINFUCK => 'bf', | |
22 | C => 'c', | |
23 | CPP => 'cpp', | |
24 | D => 'd', | |
25 | GCCGO => 'go', | |
26 | GOLANG => 'go', | |
27 | GOLFSCRIPT => 'gs', | |
28 | HASKELL => 'hs', | |
29 | JAVA => 'java', | |
30 | JULIA => 'jl', | |
31 | MONO => 'cs', | |
32 | OCAML => 'ml', | |
33 | PASCAL => 'pas', | |
34 | PERL => 'pl', | |
35 | PHP => 'php', | |
36 | PYTHON => 'py', | |
37 | RUBY => 'rb', | |
38 | RUST => 'rs', | |
39 | SBCL => 'l', | |
40 | }; | |
41 | ||
42 | ################################################## | |
43 | ||
44 | sub safe_can { | |
45 | my ($type, $sub, $name) = @_; | |
46 | ||
47 | get_logger->logdie("Invalid \l$type: '$name'") unless $name =~ /^\w+$/s; | |
48 | my $pkg = __PACKAGE__ . "::${type}::${name}"; | |
49 | eval "require $pkg" or get_logger->warn("Error while requiring $pkg: $@"); | |
50 | $pkg->can($sub) or get_logger->logdie("No such \l$type: '$name'"); | |
51 | } | |
52 | ||
53 | sub process{ | |
54 | my ($meta) = @_; | |
55 | ||
56 | my @results; | |
57 | my @full_results = (); | |
58 | our $errors = ''; | |
59 | try { | |
60 | prepare_files $meta; | |
61 | chomp $errors; | |
62 | ||
63 | my ($files, $generator, $runner, $judge, $testcnt) = map { $meta->{$_} or die "Required parameter missing: $_\n"} qw/files generator runner judge testcnt/; | |
64 | ||
65 | $generator = safe_can Generator => generate => $generator; | |
66 | $runner = safe_can Runner => run => $runner; | |
67 | $judge = safe_can Judge => judge => $judge; | |
68 | ||
69 | for my $test (1 .. $testcnt) { | |
70 | my $start_time = time; | |
71 | my $result; | |
72 | unlink 'result'; | |
73 | try { | |
74 | $generator->($test, $meta); | |
75 | $result = $runner->($test, $meta); | |
76 | } catch { | |
77 | $result = $_; | |
78 | unless (ref $result) { | |
79 | chomp $result; | |
80 | $result = [ERR, $result]; | |
81 | } | |
82 | }; | |
83 | ||
84 | if (ref $result) { | |
85 | my $result_text = $result->[1]; | |
86 | $result_text .= ': ' . read_file 'result' if -s 'result'; | |
87 | get_logger->trace("Test $test result is " . $result_text); | |
88 | push @full_results, {id => $test, result => $result->[0], result_text => $result_text, time => time - $start_time} | |
89 | } else { | |
90 | get_logger->trace("Test $test result is $result"); | |
91 | push @full_results, {id => $test, result => 0, result_text => $result, time => time - $start_time} | |
92 | } | |
93 | push @results, $result; | |
94 | last if $meta->{judge} eq 'Absolute' && ref $result | |
95 | } | |
96 | ||
97 | my %results = $judge->(@results); | |
98 | $meta->{$_} = $results{$_} for keys %results; | |
99 | $meta->{results} = \@full_results | |
100 | } catch { | |
101 | s/(.*) at .*/$1/s; | |
102 | chomp; | |
103 | $meta->{result} = -1; | |
104 | $meta->{result_text} = $_; | |
105 | }; | |
106 | stopvms; | |
107 | $meta->{errors} = $errors; | |
108 | ||
109 | get_logger->info('Job result: ' . $meta->{result_text}); | |
110 | } | |
111 | ||
112 | sub process_job { | |
113 | my ($job) = @_; | |
114 | my $pb = db()->select('problems', '*', {id => $job->{problem}})->hash; | |
115 | my $meta = { | |
116 | problem => $job->{problem}, | |
117 | files => { | |
118 | prog => { | |
119 | name => 'prog.' . $job->{extension}, | |
120 | format => $job->{format}, | |
121 | content => $job->{source}, | |
122 | }, | |
123 | }, | |
124 | map { $_ => $pb->{$_} } qw/generator runner judge precnt testcnt timeout olimit/ | |
125 | }; | |
126 | my $timeout_override = db()->query('SELECT timeout FROM limits WHERE problem=? AND format=?', $job->{problem}, $job->{format})->list; | |
127 | $meta->{timeout} = $timeout_override if defined $timeout_override; | |
128 | $meta->{tests} = decode_json $pb->{tests} if $meta->{runner} eq 'File'; | |
129 | $job->{contest} &&= contest_entry($job->{contest}); | |
130 | delete $meta->{precnt} unless $job->{contest} && $job->{contest}{started} && !$job->{contest}{finished}; ## no critic (ProhibitNegativeExpressionsInUnlessAndUntilConditions) | |
131 | $meta->{testcnt} = $meta->{precnt} if $meta->{precnt}; | |
132 | ||
133 | $meta->{files}{ver} = { | |
134 | name => 'ver.' . FORMAT_EXTENSION->{$pb->{verformat}}, | |
135 | format => $pb->{verformat}, | |
136 | content => $pb->{versource}, | |
137 | } if $pb->{verformat}; | |
138 | ||
139 | process $meta; | |
140 | ||
141 | $meta->{result_text} .= ' (pretests)' if $meta->{precnt}; | |
142 | finish_job($job, $job->{private} || $pb->{private}, | |
143 | result => $meta->{result}, | |
144 | result_text => $meta->{result_text}, | |
145 | ($meta->{results} ? (results => encode_json $meta->{results}) : ()), | |
146 | $meta->{errors} ? (errors => $meta->{errors}) : ()); | |
147 | } | |
148 | ||
149 | sub got_job{ | |
150 | my $job = $_[0]; | |
151 | my $id = $job->{id}; | |
152 | get_logger->debug("Processing job $id..."); | |
153 | process_job $job; | |
154 | get_logger->debug("Job $id done"); | |
155 | } | |
156 | ||
157 | my $daemon = hostname . ":$$"; | |
158 | ||
159 | sub run{ | |
160 | require Gruntmaster::Data; | |
161 | Gruntmaster::Data->import; | |
162 | dbinit($ENV{GRUNTMASTER_DSN} // 'dbi:Pg:'); | |
163 | Log::Log4perl->init('/etc/gruntmasterd/gruntmasterd-log.conf'); | |
164 | get_logger->info("gruntmasterd $VERSION started ($daemon)"); | |
165 | my $dir = tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1; | |
166 | chmod 0711, $dir; | |
167 | chdir $dir; | |
168 | while (1) { | |
169 | my $job = take_job($daemon); | |
170 | got_job $job if defined $job; | |
171 | sleep 2 unless defined $job; | |
172 | } | |
173 | } | |
174 | ||
175 | 1; | |
176 | __END__ | |
177 | ||
178 | =head1 NAME | |
179 | ||
180 | Gruntmaster::Daemon - Gruntmaster 6000 Online Judge -- daemon | |
181 | ||
182 | =head1 SYNOPSIS | |
183 | ||
184 | use Gruntmaster::Daemon; | |
185 | Gruntmaster::Daemon->run; | |
186 | ||
187 | =head1 DESCRIPTION | |
188 | ||
189 | Gruntmaster::Daemon is the daemon component of the Gruntmaster 6000 online judge. | |
190 | ||
191 | =head1 AUTHOR | |
192 | ||
193 | Marius Gavrilescu E<lt>marius@ieval.roE<gt> | |
194 | ||
195 | =head1 COPYRIGHT AND LICENSE | |
196 | ||
197 | Copyright (C) 2014 by Marius Gavrilescu | |
198 | ||
199 | This library is free software: you can redistribute it and/or modify | |
200 | it under the terms of the GNU Affero General Public License as published by | |
201 | the Free Software Foundation, either version 3 of the License, or | |
202 | (at your option) any later version. | |
203 | ||
204 | ||
205 | =cut |