package Gruntmaster::Daemon::Runner::Interactive; use 5.014000; use strict; use warnings; use File::Slurp qw/slurp/; use Gruntmaster::Daemon::Constants qw/WA/; use Log::Log4perl qw/get_logger/; use POSIX qw/mkfifo/; use Try::Tiny; our $VERSION = '5999.000_002'; ################################################## sub run{ my ($test, $meta) = @_; get_logger->trace("Running on test $test..."); mkfifo 'fifo1', 0600 or die $! unless -e 'fifo1'; mkfifo 'fifo2', 0600 or die $! unless -e 'fifo2'; my $ret = fork // get_logger->logdie("Fork failed: $!"); if ($ret) { try { $meta->{files}{prog}{run}->($meta->{files}{prog}{name}, fds => [qw/0 fifo1 1 >fifo2/], map {defined $meta->{$_} ? ($_ => $meta->{$_}) : () } qw/timeout mlimit/); } catch { die $_ } finally { waitpid $ret, 0; }; die [WA, "Wrong Answer"] if $?; } else { try { $meta->{files}{ver}{run}->($meta->{files}{ver}{name}, fds => [qw/1 >fifo1 0 fifo2 4 >result/], args => [$test], map {defined $meta->{$_} ? ($_ => $meta->{$_}) : () } qw/timeout mlimit/); } catch { exit 1; }; exit } unlink 'fifo1'; unlink 'fifo2'; scalar slurp 'result' } 1; __END__ =encoding utf-8 =head1 NAME Gruntmaster::Daemon::Runner::Interactive - Make an interactive verifier talk to the program =head1 SYNOPSIS use Gruntmaster::Daemon::Runner::Interactive; Gruntmaster::Daemon::Runner::Interactive::run(5, $meta); =head1 DESCRIPTION B Gruntmaster::Daemon::Runner::Interactive is a runner which runs the program and an interactive verifier in parallel, connecting each program's STDIN to the other's STDOUT. The verifier, C<< $meta->{files}{ver} >>, should return nonzero if the program gives an incorrect answer, or print the test score to fd 4 then return 0 if the answer is correct. =head1 AUTHOR Marius Gavrilescu Emarius@ieval.roE =head1 COPYRIGHT AND LICENSE Copyright (C) 2014 by Marius Gavrilescu This library is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. =cut