From cebc2c9d3e5c3ba02313242ff11f0c1600e080fc Mon Sep 17 00:00:00 2001
From: Samuel Susla <samuelsusla@fb.com>
Date: Tue, 18 Feb 2020 03:38:50 -0800
Subject: [PATCH] Do not switch queues if not necessary

Summary:
Changelog: [Internal]

Switching queue here is not necessary if we are already on the main queue.

 This is important for Fabric SSTs, otherwise images are missing.

Reviewed By: shergin

Differential Revision: D19907908

fbshipit-source-id: 52e82484afc8e2f591d0c5cc126952990d992e96
---
 React/Fabric/RCTImageResponseObserverProxy.mm | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/React/Fabric/RCTImageResponseObserverProxy.mm b/React/Fabric/RCTImageResponseObserverProxy.mm
index bc97da889ad..9bb1e323fd3 100644
--- a/React/Fabric/RCTImageResponseObserverProxy.mm
+++ b/React/Fabric/RCTImageResponseObserverProxy.mm
@@ -7,6 +7,7 @@
 
 #import "RCTImageResponseObserverProxy.h"
 
+#import <React/RCTUtils.h>
 #import <react/imagemanager/ImageResponse.h>
 #import <react/imagemanager/ImageResponseObserver.h>
 #import <react/utils/ManagedObjectWrapper.h>
@@ -24,7 +25,7 @@ void RCTImageResponseObserverProxy::didReceiveImage(ImageResponse const &imageRe
   UIImage *image = (UIImage *)unwrapManagedObject(imageResponse.getImage());
   id<RCTImageResponseDelegate> delegate = delegate_;
   auto this_ = this;
-  dispatch_async(dispatch_get_main_queue(), ^{
+  RCTExecuteOnMainQueue(^{
     [delegate didReceiveImage:image fromObserver:this_];
   });
 }
@@ -33,7 +34,7 @@ void RCTImageResponseObserverProxy::didReceiveProgress(float progress) const
 {
   auto this_ = this;
   id<RCTImageResponseDelegate> delegate = delegate_;
-  dispatch_async(dispatch_get_main_queue(), ^{
+  RCTExecuteOnMainQueue(^{
     [delegate didReceiveProgress:progress fromObserver:this_];
   });
 }
@@ -42,7 +43,7 @@ void RCTImageResponseObserverProxy::didReceiveFailure() const
 {
   auto this_ = this;
   id<RCTImageResponseDelegate> delegate = delegate_;
-  dispatch_async(dispatch_get_main_queue(), ^{
+  RCTExecuteOnMainQueue(^{
     [delegate didReceiveFailureFromObserver:this_];
   });
 }