From 3a3e5affc31bc43f76dd09ccfe1952fdc269556d Mon Sep 17 00:00:00 2001
From: Aaron Chiu <aaronechiu@fb.com>
Date: Thu, 20 Apr 2017 16:10:09 -0700
Subject: [PATCH] add flag to test running BG UI operation on a separate thread
 from the native modules thread

Reviewed By: achen1

Differential Revision: D4912045

fbshipit-source-id: b0b1aea24f8d463b95369636b7df2422a23aab22
---
 .../java/com/facebook/react/ReactInstanceManager.java  |  5 ++++-
 .../facebook/react/ReactInstanceManagerBuilder.java    | 10 +++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java b/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
index f9881747a..cbeebdb54 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
@@ -152,6 +152,7 @@ public class ReactInstanceManager {
   private final boolean mLazyNativeModulesEnabled;
   private final boolean mLazyViewManagersEnabled;
   private final boolean mSetupReactContextInBackgroundEnabled;
+  private final boolean mUseSeparateUIBackgroundThread;
 
   private final ReactInstanceDevCommandsHandler mDevInterface =
       new ReactInstanceDevCommandsHandler() {
@@ -223,7 +224,8 @@ public class ReactInstanceManager {
     @Nullable RedBoxHandler redBoxHandler,
     boolean lazyNativeModulesEnabled,
     boolean lazyViewManagersEnabled,
-    boolean setupReactContextInBackgroundEnabled) {
+    boolean setupReactContextInBackgroundEnabled,
+    boolean useSeparateUIBackgroundThread) {
 
     initializeSoLoaderIfNecessary(applicationContext);
 
@@ -253,6 +255,7 @@ public class ReactInstanceManager {
     mLazyNativeModulesEnabled = lazyNativeModulesEnabled;
     mLazyViewManagersEnabled = lazyViewManagersEnabled;
     mSetupReactContextInBackgroundEnabled = setupReactContextInBackgroundEnabled;
+    mUseSeparateUIBackgroundThread = useSeparateUIBackgroundThread;
 
     // Instantiate ReactChoreographer in UI thread.
     ReactChoreographer.initialize();
diff --git a/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java b/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java
index 65afdc4dc..91eb86f23 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java
+++ b/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManagerBuilder.java
@@ -43,6 +43,7 @@ public class ReactInstanceManagerBuilder {
   protected boolean mLazyNativeModulesEnabled;
   protected boolean mLazyViewManagersEnabled;
   protected boolean mSetupReactContextInBackground;
+  protected boolean mUseSeparateUIBackgroundThread;
 
   /* package protected */ ReactInstanceManagerBuilder() {
   }
@@ -193,6 +194,12 @@ public class ReactInstanceManagerBuilder {
     return this;
   }
 
+  public ReactInstanceManagerBuilder setUseSeparateUIBackgroundThread(
+    boolean useSeparateUIBackgroundThread) {
+   mUseSeparateUIBackgroundThread = useSeparateUIBackgroundThread;
+   return this;
+  }
+
   /**
    * Instantiates a new {@link ReactInstanceManager}.
    * Before calling {@code build}, the following must be called:
@@ -238,6 +245,7 @@ public class ReactInstanceManagerBuilder {
       mRedBoxHandler,
       mLazyNativeModulesEnabled,
       mLazyViewManagersEnabled,
-      mSetupReactContextInBackground);
+      mSetupReactContextInBackground,
+      mUseSeparateUIBackgroundThread);
   }
 }