From f3ad9692b18669c216897ce1ce0a668c59c3889a Mon Sep 17 00:00:00 2001
From: Marius Gavrilescu <marius@ieval.ro>
Date: Wed, 15 Jan 2014 12:48:19 +0200
Subject: [PATCH 1/1] Use centralised pub/sub and reduce number of chdirs

---
 lib/Gruntmaster/Daemon.pm | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/lib/Gruntmaster/Daemon.pm b/lib/Gruntmaster/Daemon.pm
index 1d8cb8b..46da60b 100644
--- a/lib/Gruntmaster/Daemon.pm
+++ b/lib/Gruntmaster/Daemon.pm
@@ -9,16 +9,14 @@ our $VERSION = '0.001';
 use Gruntmaster::Daemon::Constants qw/ERR/;
 use Gruntmaster::Daemon::Format qw/mkrun/;
 use Gruntmaster::Page qw/generate/;
-use Gruntmaster::Data qw/job_inmeta job_problem problem_meta set_job_daemon set_job_result set_job_result_text set_job_results/;
+use Gruntmaster::Data qw/job_inmeta job_problem problem_meta set_job_daemon set_job_result set_job_result_text set_job_results SUBSCRIBE WAIT_FOR_MESSAGES/;
 
-use Cwd qw/cwd/;
 use File::Basename qw/fileparse/;
 use File::Slurp qw/write_file/;
 use File::Spec::Functions qw/devnull/;
 use File::Temp qw/tempdir/;
 use IO::File;
 use IPC::Open3 qw/open3/;
-use Redis;
 use Sys::Hostname qw/hostname/;
 use Time::HiRes qw/time/;
 use Try::Tiny;
@@ -70,12 +68,8 @@ sub prepare_files{
   }
 }
 
-my $tempdir;
-
 sub process{
   my $job = shift;
-  my $rootdir = cwd;
-  chdir $tempdir;
 
   my @results;
   my @full_results = ();
@@ -137,7 +131,6 @@ sub process{
   set_job_result_text $job, $meta->{result_text};
   set_job_results $job, \@full_results if scalar @full_results;
 
-  chdir $rootdir;
   my $log = $meta->{contest} ? "ct/$meta->{contest}/log" : 'log';
   write_file "$log/src/$job." . Gruntmaster::Page::Log::FORMAT_EXTENSION->{$meta->{files}{prog}{format}}, $meta->{files}{prog}{content};
   generate "$log/job/$job.html";
@@ -160,10 +153,9 @@ sub got_job{
 sub run{
   Log::Log4perl->init('log.conf');
   get_logger->info("gruntmasterd $VERSION started");
-  $tempdir = tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1;
-  my $redis = Redis->new;
-  $redis->subscribe('jobs', \&got_job);
-  $redis->wait_for_messages(0) while 1
+  chdir tempdir 'gruntmasterd.XXXX', CLEANUP => 1, TMPDIR => 1;
+  SUBSCRIBE jobs => \&got_job;
+  WAIT_FOR_MESSAGES 86400 while 1
 }
 
 1;
-- 
2.30.2