From 2d61a43fba45c3174db75556e405cb8e48c3ab71 Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sat, 27 Aug 2016 15:19:51 -0700
Subject: [PATCH] db: fix level-js iterators.

---
 lib/db/level.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/db/level.js b/lib/db/level.js
index 9c6a691f..3a93b6c2 100644
--- a/lib/db/level.js
+++ b/lib/db/level.js
@@ -105,11 +105,18 @@ function Iterator(db, options) {
   options.keyAsBuffer = false;
   this.db = db;
   this.iter = db.level.iterator(options);
+  this._end = false;
 }
 
 Iterator.prototype.next = function(callback) {
   var self = this;
   this.iter.next(function(err, key, value) {
+    // Hack for level-js: it doesn't actually
+    // end iterators -- it keeps streaming keys
+    // and values.
+    if (self._end)
+      return;
+
     if (err) {
       callback(err);
       return;
@@ -137,6 +144,7 @@ Iterator.prototype.seek = function seek(key) {
 };
 
 Iterator.prototype.end = function end(callback) {
+  this._end = true;
   this.iter.end(callback);
 };