From c630d85330a2278f7bbabfbee62125fea3ac5172 Mon Sep 17 00:00:00 2001
From: Mike Seese <seesemichaelj@gmail.com>
Date: Fri, 4 Jan 2019 16:08:57 -0500
Subject: [PATCH] overload eventemitter on method to handle data listeners

this essentially bypasses the memoryleak warning for data
event listeners by increasing the max listeners as needed
---
 lib/provider.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/lib/provider.js b/lib/provider.js
index 133bce3475..0bcfabc227 100644
--- a/lib/provider.js
+++ b/lib/provider.js
@@ -62,6 +62,7 @@ const defaultOptions = {
 };
 
 Provider.prototype = Object.create(EventEmitter.prototype);
+Provider.prototype.oldOn = Provider.prototype.on;
 Provider.prototype.constructor = Provider;
 
 Provider.prototype._applyDefaultOptions = function(options) {
@@ -130,6 +131,16 @@ Provider.prototype.send = function(payload, callback) {
   }
 };
 
+Provider.prototype.on = function(eventName, listener) {
+  if (eventName === "data") {
+    const maxListeners = this.getMaxListeners();
+    if (this.listenerCount(eventName) + 1 > maxListeners) {
+      this.setMaxListeners(maxListeners + 1);
+    }
+  }
+  this.oldOn(eventName, listener);
+};
+
 Provider.prototype.close = function(callback) {
   // This is a little gross reaching, but...
   this.manager.state.stopMining();