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 File::Slurp qw/write_file/;
  12 use Gruntmaster::Daemon::Constants qw/TLE OLE DIED NZX/;
  13 use Time::HiRes qw/alarm/;
  14 use List::MoreUtils qw/natatime/;
  15 use Log::Log4perl qw/get_logger/;
  16 use IPC::Signal qw/sig_name sig_num/;
  17
  18 our $VERSION = "5999.000_002";
  19 our @EXPORT_OK = qw/prepare_files/;
  20
  21 ##################################################
  22
  23 sub command_and_args{
  24         my ($format, $basename) = @_;
  25
  26         given($format) {
  27                 "./$basename" when [qw/C CPP PASCAL/];
  28                 "./$basename.exe" when 'MONO';
  29                 java => $basename when 'JAVA';
  30                 perl => $basename when 'PERL';
  31                 python => $basename when 'PYTHON';
  32                 default { die "Don't know how to execute format $format" }
  33         }
  34 }
  35
  36 sub mkrun{
  37         my $format = shift;
  38         sub{
  39                 local *__ANON__ = 'mkrun_runner';
  40                 my ($name, %args) = @_;
  41                 get_logger->trace("Running $name...");
  42                 my $basename = fileparse $name, qr/\.[^.]*/;
  43                 my $ret = fork // die 'Cannot fork';
  44                 if ($ret) {
  45                         my $tle;
  46                         local $SIG{ALRM} = sub { kill KILL => $ret; $tle = 1};
  47                         alarm $args{timeout} if exists $args{timeout};
  48                         waitpid $ret, 0;
  49                         alarm 0;
  50                         my $sig = $? & 127;
  51                         my $signame = sig_name $sig;
  52                         die [TLE, "Time Limit Exceeded"] if $tle;
  53                         die [OLE, 'Output Limit Exceeded'] if $sig && $signame eq 'XFSZ';
  54                         die [DIED, "Crash (SIG$signame)"] if $sig && $signame != 'PIPE';
  55                         die [NZX, "Non-zero exit status: " . ($? >> 8)] if $? >> 8;
  56                 } else {
  57                         my @fds = exists $args{fds} ? @{$args{fds}} : ();
  58                         $^F = 50;
  59                         POSIX::close $_ for 0 .. $^F;
  60                         my $it = natatime 2, @fds;
  61                         while (my ($fd, $file) = $it->()) {
  62                                 open my $fh, $file or die $!;
  63                                 my $oldfd = fileno $fh;
  64                                 if ($oldfd != $fd) {
  65                                         POSIX::dup2 $oldfd, $fd or die $!;
  66                                         POSIX::close $oldfd or die $!;
  67                                 }
  68                         }
  69                         exec 'gruntmaster-exec', $args{mlimit} // 0, $args{olimit} // 0, command_and_args($format, $basename), exists $args{args} ? @{$args{args}} : ();
  70                         exit 42
  71                 }
  72         }
  73 }
  74
  75 sub prepare{
  76         my ($name, $format) = @_;
  77         get_logger->trace("Preparing file $name...");
  78
  79         $Gruntmaster::Daemon::errors .= `gruntmaster-compile $format $name 2>&1`;
  80         $Gruntmaster::Daemon::errors .= "\n";
  81         die 'Compile error' if $?
  82 }
  83
  84 sub prepare_files{
  85         my $meta = shift;
  86
  87         for my $file (values $meta->{files}) {
  88                 my ($format, $name, $content) = @{$file}{qw/format name content/};
  89
  90                 $file->{run} = mkrun($format);
  91                 write_file $name, $content;
  92                 prepare $name, $format;
  93         }
  94 }
  95
  96 1;
  97 __END__
  98
  99 =encoding utf-8
 100
 101 =head1 NAME
 102
 103 Gruntmaster::Daemon::Format - Utility functions for handling source files
 104
 105 =head1 SYNOPSIS
 106
 107   use Gruntmaster::Daemon::Format qw/prepare_files/;
 108   prepare_files { files => {
 109     prog => {
 110       name => 'prog.pl',
 111       format => 'PERL',
 112       content => 'print "Hello, world!"'
 113     },
 114     ver => {
 115       name => 'ver.cpp',
 116       format => 'CPP',
 117       content => ...
 118     },
 119   }};
 120
 121 =head1 DESCRIPTION
 122
 123 Gruntmaster::Daemon::Format exports utility functions for handling source files.
 124
 125 =over
 126
 127 =item B<prepare_files> I<$meta>
 128
 129 Compiles all the source files in C<< $meta->{files} >>.
 130
 131 =back
 132
 133 =head1 AUTHOR
 134
 135 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
 136
 137 =head1 COPYRIGHT AND LICENSE
 138
 139 Copyright (C) 2014 by Marius Gavrilescu
 140
 141 This library is free software: you can redistribute it and/or modify
 142 it under the terms of the GNU Affero General Public License as published by
 143 the Free Software Foundation, either version 3 of the License, or
 144 (at your option) any later version.
 145
 146
 147 =cut