From c020b922b2b04878b04b8d7e84079087f1dc2abc Mon Sep 17 00:00:00 2001
From: Marius Gavrilescu <marius@ieval.ro>
Date: Mon, 21 Apr 2014 21:04:58 +0300
Subject: [PATCH] Avoid zombies on TLE in interactive problems

---
 lib/Gruntmaster/Daemon/Runner/Interactive.pm | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/Gruntmaster/Daemon/Runner/Interactive.pm b/lib/Gruntmaster/Daemon/Runner/Interactive.pm
index 115e7a1..5a98675 100644
--- a/lib/Gruntmaster/Daemon/Runner/Interactive.pm
+++ b/lib/Gruntmaster/Daemon/Runner/Interactive.pm
@@ -23,8 +23,13 @@ sub run{
 
 	my $ret = fork // get_logger->logdie("Fork failed: $!");
 	if ($ret) {
-		$meta->{files}{prog}{run}->($meta->{files}{prog}{name}, fds => [qw/0 fifo1 1 >fifo2/], map {defined $meta->{$_} ? ($_ => $meta->{$_}) : () } qw/timeout mlimit/);
-		waitpid $ret, 0;
+		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 {
-- 
2.30.2