1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/perl/SimpleTee.pm b/src/test/perl/SimpleTee.pm
new file mode 100644
index 0000000..681a36a
--- /dev/null
+++ b/src/test/perl/SimpleTee.pm
@@ -0,0 +1,35 @@
+
+# Copyright (c) 2021, PostgreSQL Global Development Group
+
+# A simple 'tee' implementation, using perl tie.
+#
+# Whenever you print to the handle, it gets forwarded to a list of
+# handles. The list of output filehandles is passed to the constructor.
+#
+# This is similar to IO::Tee, but only used for output. Only the PRINT
+# method is currently implemented; that's all we need. We don't want to
+# depend on IO::Tee just for this.
+
+package SimpleTee;
+use strict;
+use warnings;
+
+sub TIEHANDLE
+{
+	my $self = shift;
+	return bless \@_, $self;
+}
+
+sub PRINT
+{
+	my $self = shift;
+	my $ok   = 1;
+	for my $fh (@$self)
+	{
+		print $fh @_ or $ok = 0;
+		$fh->flush   or $ok = 0;
+	}
+	return $ok;
+}
+
+1;