From 7df269219cc55be7ef86e558d04c266fa6879268 Mon Sep 17 00:00:00 2001
From: Eric Fischer <enf@pobox.com>
Date: Wed, 1 Oct 2014 10:20:04 -0700
Subject: [PATCH] Fix memory leak of field names

---
 tile.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tile.cc b/tile.cc
index d69cc7af..fd82b970 100644
--- a/tile.cc
+++ b/tile.cc
@@ -576,8 +576,10 @@ long long write_tile(struct index *start, struct index *end, char *metabase, uns
 				c.meta.push_back(key->n);
 				c.meta.push_back(value->n);
 
-				// Dup to retain after munmap
-				pool(file_keys, strdup(key->s), t);
+				if (!is_pooled(file_keys, key->s, t)) {
+					// Dup to retain after munmap
+					pool(file_keys, strdup(key->s), t);
+				}
 			}
 
 			features.push_back(c);