lib/Gruntmaster/Daemon/Format.pm

   1 package Gruntmaster::Daemon::Format;
   2
   3 use 5.014000;
   4 use strict;
   5 use warnings;
   6 use parent qw/Exporter/;
   7 no if $] > 5.017011, warnings => 'experimental::smartmatch';
   8
   9 use POSIX qw//;
  10 use File::Basename qw/fileparse/;
  11 use Gruntmaster::Daemon::Constants qw/TLE OLE DIED NZX/;
  12 use Time::HiRes qw/alarm/;
  13 use List::MoreUtils qw/natatime/;
  14 use IPC::Signal qw/sig_name sig_num/;
  15
  16 our $VERSION = "5999-TRIAL";
  17 our @EXPORT_OK = qw/prepare_files/;
  18
  19 ##################################################
  20
  21 sub command_and_args{
  22         my ($format, $basename) = @_;
  23
  24         given($format) {
  25                 "./$basename" when [qw/C CPP PASCAL/];
  26                 "./$basename.exe" when 'MONO';
  27                 "java $basename" when 'JAVA';
  28                 "perl $basename" when 'PERL';
  29                 "python $basename" when 'PYTHON';
  30                 default { die "Don't know how to execute format $format" }
  31         }
  32 }
  33
  34 sub mkrun{
  35         my $format = shift;
  36         sub{
  37                 my ($name, %args) = @_;
  38                 my $basename = fileparse $name, qr/\.[^.]*/;
  39                 my $ret = fork // die 'Cannot fork';
  40                 if ($ret) {
  41                         my $tle;
  42                         local $SIG{ALRM} = sub { kill KILL => $ret; $tle = 1};
  43                         alarm $args{timeout} if exists $args{timeout};
  44                         wait;
  45                         alarm 0;
  46                         my $sig = $? & 127;
  47                         my $signame = sig_name $sig;
  48                         die [TLE, "Time Limit Exceeded"] if $tle;
  49                         die [OLE, 'Output Limit Exceeded'] if $sig && $signame eq 'XFSZ';
  50                         die [DIED, "Crash (SIG$signame)"] if $sig;
  51                         die [NZX, "Non-zero exit status: " . ($? >> 8)] if $?;
  52                 } else {
  53                         my @fds = exists $args{fds} ? @{$args{fds}} : ();
  54                         $^F = 50;
  55                         POSIX::close $_ for 0 .. $^F;
  56                         my $it = natatime 2, @fds;
  57                         while (my ($fd, $file) = $it->()) {
  58                                 open my $fh, $file or die $!;
  59                                 my $oldfd = fileno $fh;
  60                                 if ($oldfd != $fd) {
  61                                         POSIX::dup2 $oldfd, $fd or die $!;
  62                                         POSIX::close $oldfd or die $!;
  63                                 }
  64                         }
  65                         exec 'gruntmaster-exec', $args{mlimit} // 0, $args{olimit} // 0, command_and_args($format, $basename), exists $args{args} ? @{$args{args}} : ();
  66                         exit 42
  67                 }
  68         }
  69 }
  70
  71 sub prepare{
  72         my ($name, $format) = @_;
  73         our $errors;
  74         my $basename = fileparse $name, qr/\.[^.]*/;
  75         get_logger->trace("Preparing file $name...");
  76
  77         $errors .= `gruntmaster-compile $format $basename $name 2>&1`;
  78         $errors .= "\n";
  79         die 'Compile error' if $?
  80 }
  81
  82 sub prepare_files{
  83         my $meta = shift;
  84
  85         for my $file (values $meta->{files}) {
  86                 my ($format, $name, $content) = @{$file}{qw/format name content/};
  87
  88                 $file->{run} = mkrun($format);
  89                 write_file $name, $content;
  90                 prepare $name, $format;
  91         }
  92 }
  93
  94 1;
  95 __END__
  96
  97 =encoding utf-8
  98
  99 =head1 NAME
 100
 101 Gruntmaster::Daemon::Format - Utility functions for handling source files
 102
 103 =head1 SYNOPSIS
 104
 105   use Gruntmaster::Daemon::Format qw/prepare_files/;
 106   prepare_files { files => {
 107     prog => {
 108       name => 'prog.pl',
 109       format => 'PERL',
 110       content => 'print "Hello, world!"'
 111     },
 112     ver => {
 113       name => 'ver.cpp',
 114       format => 'CPP',
 115       content => ...
 116     },
 117   }};
 118
 119 =head1 DESCRIPTION
 120
 121 Gruntmaster::Daemon::Format exports utility functions for handling source files.
 122
 123 =over
 124
 125 =item B<prepare_files> I<$meta>
 126
 127 Compiles all the source files in C<< $meta->{files} >>.
 128
 129 =back
 130
 131 =head1 AUTHOR
 132
 133 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
 134
 135 =head1 COPYRIGHT AND LICENSE
 136
 137 Copyright (C) 2014 by Marius Gavrilescu
 138
 139 This library is free software: you can redistribute it and/or modify
 140 it under the terms of the GNU Affero General Public License as published by
 141 the Free Software Foundation, either version 3 of the License, or
 142 (at your option) any later version.
 143
 144
 145 =cut