From 7d2318dce684294171d66e65997b28cdf4e46086 Mon Sep 17 00:00:00 2001
From: Feross Aboukhadijeh <feross@feross.org>
Date: Mon, 13 Feb 2017 17:27:16 -0800
Subject: [PATCH] Use unordered-array-remove for better performance!

---
 lib/client/http-tracker.js | 3 ++-
 lib/client/udp-tracker.js  | 3 ++-
 lib/server/swarm.js        | 3 ++-
 package.json               | 1 +
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/client/http-tracker.js b/lib/client/http-tracker.js
index faee1de..629ae16 100644
--- a/lib/client/http-tracker.js
+++ b/lib/client/http-tracker.js
@@ -1,5 +1,6 @@
 module.exports = HTTPTracker
 
+var arrayRemove = require('unordered-array-remove')
 var bencode = require('bencode')
 var compact2string = require('compact2string')
 var debug = require('debug')('bittorrent-tracker:http-tracker')
@@ -133,7 +134,7 @@ HTTPTracker.prototype._request = function (requestUrl, params, cb) {
 
   function cleanup () {
     if (request) {
-      self.cleanupFns.splice(self.cleanupFns.indexOf(cleanup), 1)
+      arrayRemove(self.cleanupFns, self.cleanupFns.indexOf(cleanup))
       request.abort()
       request = null
     }
diff --git a/lib/client/udp-tracker.js b/lib/client/udp-tracker.js
index ae6e06c..3198edc 100644
--- a/lib/client/udp-tracker.js
+++ b/lib/client/udp-tracker.js
@@ -1,5 +1,6 @@
 module.exports = UDPTracker
 
+var arrayRemove = require('unordered-array-remove')
 var BN = require('bn.js')
 var Buffer = require('safe-buffer').Buffer
 var compact2string = require('compact2string')
@@ -110,7 +111,7 @@ UDPTracker.prototype._request = function (opts) {
       timeout = null
     }
     if (socket) {
-      self.cleanupFns.splice(self.cleanupFns.indexOf(cleanup), 1)
+      arrayRemove(self.cleanupFns, self.cleanupFns.indexOf(cleanup))
       socket.removeListener('error', onError)
       socket.removeListener('message', onSocketMessage)
       socket.on('error', noop) // ignore all future errors
diff --git a/lib/server/swarm.js b/lib/server/swarm.js
index 5203318..9054268 100644
--- a/lib/server/swarm.js
+++ b/lib/server/swarm.js
@@ -1,5 +1,6 @@
 module.exports = Swarm
 
+var arrayRemove = require('unordered-array-remove')
 var debug = require('debug')('bittorrent-tracker:swarm')
 var LRU = require('lru')
 var randomIterate = require('random-iterate')
@@ -103,7 +104,7 @@ Swarm.prototype._onAnnounceStopped = function (params, peer, id) {
   // swarms that this peer is participating in.
   if (peer.socket) {
     var index = peer.socket.infoHashes.indexOf(this.infoHash)
-    peer.socket.infoHashes.splice(index, 1)
+    arrayRemove(peer.socket.infoHashes, index)
   }
 
   this.peers.remove(id)
diff --git a/package.json b/package.json
index b7de0cb..81c3a6f 100644
--- a/package.json
+++ b/package.json
@@ -40,6 +40,7 @@
     "simple-websocket": "^4.0.0",
     "string2compact": "^1.1.1",
     "uniq": "^1.0.1",
+    "unordered-array-remove": "^1.0.2",
     "ws": "^1.0.0",
     "xtend": "^4.0.0"
   },