From 0b8731d40df29cd327ed6c9910109ce0db7202a1 Mon Sep 17 00:00:00 2001
From: Samuel Susla <samuelsusla@fb.com>
Date: Thu, 8 Apr 2021 10:26:02 -0700
Subject: [PATCH] Add config flag for RuntimeScheduler

Summary:
Changelog: [internal]

Add config flags for RuntimeScheduler. Even with the flags, React will not be using it. Further changes on React side will be required.

Reviewed By: mdvacca

Differential Revision: D27616916

fbshipit-source-id: 296a040c2b6dd936dd9582e937e6db75e28f31a4
---
 ReactCommon/react/renderer/scheduler/BUCK          |  1 +
 ReactCommon/react/renderer/scheduler/Scheduler.cpp | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/ReactCommon/react/renderer/scheduler/BUCK b/ReactCommon/react/renderer/scheduler/BUCK
index 04b225de3e4..be576471252 100644
--- a/ReactCommon/react/renderer/scheduler/BUCK
+++ b/ReactCommon/react/renderer/scheduler/BUCK
@@ -60,6 +60,7 @@ rn_xplat_cxx_library(
         react_native_xplat_target("react/renderer/core:core"),
         react_native_xplat_target("react/renderer/mounting:mounting"),
         react_native_xplat_target("react/renderer/uimanager:uimanager"),
+        react_native_xplat_target("react/renderer/runtimescheduler:runtimescheduler"),
         react_native_xplat_target("react/renderer/templateprocessor:templateprocessor"),
         react_native_xplat_target("react/renderer/componentregistry:componentregistry"),
         react_native_xplat_target("react/renderer/debug:debug"),
diff --git a/ReactCommon/react/renderer/scheduler/Scheduler.cpp b/ReactCommon/react/renderer/scheduler/Scheduler.cpp
index 2b8b57ede20..8aefdbea991 100644
--- a/ReactCommon/react/renderer/scheduler/Scheduler.cpp
+++ b/ReactCommon/react/renderer/scheduler/Scheduler.cpp
@@ -17,6 +17,7 @@
 #include <react/renderer/debug/SystraceSection.h>
 #include <react/renderer/mounting/MountingOverrideDelegate.h>
 #include <react/renderer/mounting/ShadowViewMutation.h>
+#include <react/renderer/runtimescheduler/RuntimeSchedulerBinding.h>
 #include <react/renderer/templateprocessor/UITemplateProcessor.h>
 #include <react/renderer/uimanager/UIManager.h>
 #include <react/renderer/uimanager/UIManagerBinding.h>
@@ -86,9 +87,20 @@ Scheduler::Scheduler(
   uiManager->setDelegate(this);
   uiManager->setComponentDescriptorRegistry(componentDescriptorRegistry_);
 
+#ifdef ANDROID
+  auto enableRuntimeScheduler = reactNativeConfig_->getBool(
+      "react_fabric:enable_runtime_scheduler_android");
+#else
+  auto enableRuntimeScheduler =
+      reactNativeConfig_->getBool("react_fabric:enable_runtime_scheduler_ios");
+#endif
+
   runtimeExecutor_([=](jsi::Runtime &runtime) {
     auto uiManagerBinding = UIManagerBinding::createAndInstallIfNeeded(runtime);
     uiManagerBinding->attach(uiManager);
+    if (enableRuntimeScheduler) {
+      RuntimeSchedulerBinding::createAndInstallIfNeeded(runtime);
+    }
   });
 
   auto componentDescriptorRegistryKey =