TAP: Suffix temporary directories with node name

Temporary directories for PostgreSQL nodes used in TAP tests now
have the node name appended to them.

By Kyotaro Horiguchi

Author: ringerc

src/test/perl/PostgresNode.pm

@@ -128,7 +128,7 @@ sub new
 	my $self   = {
 		_port     => $pgport,
 		_host     => $pghost,
-		_basedir  => TestLib::tempdir,
+		_basedir  => TestLib::tempdir($name),
 		_name     => $name,
 		_logfile  => "$TestLib::log_path/${testname}_${name}.log" };
 

src/test/perl/TestLib.pm

@@ -112,9 +112,11 @@ INIT
 #
 sub tempdir
 {
+	my ($prefix) = @_;
+	$prefix = "tmp_test" if (!$prefix);
 	return File::Temp::tempdir(
-		'tmp_testXXXX',
-		DIR => $tmp_check,
+		$prefix . '_XXXX',
+		DIR     => $tmp_check,
 		CLEANUP => 1);
 }