Adding GC Timer Sweeping to Android

Reviewed By: mhahnenberg

Differential Revision: D2972822

fb-gh-sync-id: b0ed28c26e3f1141c798d9d107d9e198611f9dce
shipit-source-id: b0ed28c26e3f1141c798d9d107d9e198611f9dce

Author: Dan Caspi

ReactAndroid/src/main/jni/react/JSCExecutor.cpp

@@ -141,6 +141,10 @@ void JSCExecutor::destroy() {
 }
 
 void JSCExecutor::initOnJSVMThread() {
+  #if defined(WITH_FB_JSC_TUNING) && !defined(WITH_JSC_INTERNAL)
+  // TODO: Find a way to pass m_jscConfig to configureJSCForAndroid()
+  configureJSCForAndroid(m_jscConfig.getDefault("GCTimers", false).asBool());
+  #endif
   m_context = JSGlobalContextCreateInGroup(nullptr, nullptr);
   s_globalContextRefToJSCExecutor[m_context] = this;
   installGlobalFunction(m_context, "nativeFlushQueueImmediate", nativeFlushQueueImmediate);
@@ -152,9 +156,7 @@ void JSCExecutor::initOnJSVMThread() {
 
   installGlobalFunction(m_context, "nativeLoggingHook", JSLogging::nativeHook);
 
-  // TODO (t10136849): Pass the config options from map to JSC
-
-  #ifdef WITH_FB_JSC_TUNING
+  #if defined(WITH_JSC_INTERNAL) && defined(WITH_FB_JSC_TUNING)
   configureJSCForAndroid();
   #endif