From d94f3e4b98590f511e8283cfc9a0fd7aaed2e43e Mon Sep 17 00:00:00 2001
From: Paco Estevez Garcia <festevezga@fb.com>
Date: Mon, 24 Jul 2017 06:40:02 -0700
Subject: [PATCH] Debugger channel messages should be processed only on a
 background thread

Reviewed By: bnham

Differential Revision: D5470226

fbshipit-source-id: ccbc351e3f64f2baa8a3c74c5d0c67c44731bf32
---
 React/Inspector/RCTInspectorPackagerConnection.m | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/React/Inspector/RCTInspectorPackagerConnection.m b/React/Inspector/RCTInspectorPackagerConnection.m
index d3a26d188..3a2f8e587 100644
--- a/React/Inspector/RCTInspectorPackagerConnection.m
+++ b/React/Inspector/RCTInspectorPackagerConnection.m
@@ -18,6 +18,7 @@ const int RECONNECT_DELAY_MS = 2000;
   NSURL *_url;
   NSMutableDictionary<NSString *, RCTInspectorLocalConnection *> *_inspectorConnections;
   RCTSRWebSocket *_webSocket;
+  dispatch_queue_t _jsQueue;
   BOOL _closed;
   BOOL _suppressConnectionErrors;
 }
@@ -45,6 +46,7 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
   if (self = [super init]) {
     _url = url;
     _inspectorConnections = [NSMutableDictionary new];
+    _jsQueue = dispatch_queue_create("com.facebook.react.WebSocketExecutor", DISPATCH_QUEUE_SERIAL);
   }
   return self;
 }
@@ -215,6 +217,7 @@ RCT_NOT_IMPLEMENTED(- (instancetype)init)
   // timeouts, but it appears the iOS RCTSRWebSocket API doesn't have the same
   // implemented options.
   _webSocket = [[RCTSRWebSocket alloc] initWithURL:_url];
+  [_webSocket setDelegateDispatchQueue:_jsQueue];
   _webSocket.delegate = self;
   [_webSocket open];
 }