Implement mechanism to prevent ShadowTree commit exhaustion

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlags.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<3212fc0e52bffab8e56359d207a22357>>
+ * @generated SignedSource<<a90efac589511beb130c499e51150de8>>
  */
 
 /**
@@ -306,6 +306,12 @@ public object ReactNativeFeatureFlags {
   @JvmStatic
   public fun preparedTextCacheSize(): Double = accessor.preparedTextCacheSize()
 
+  /**
+   * Enables a new mechanism in ShadowTree to prevent problems caused by multiple threads trying to commit concurrently. If a thread tries to commit a few times unsuccessfully, it will acquire a lock and try again.
+   */
+  @JvmStatic
+  public fun preventShadowTreeCommitExhaustionWithLocking(): Boolean = accessor.preventShadowTreeCommitExhaustionWithLocking()
+
   /**
    * Releases the cached image data when it is consumed by the observers.
    */

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxAccessor.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<889f905c29a3558eb172782cccd521c4>>
+ * @generated SignedSource<<b32f66fb09971e786dd1380bbf417720>>
  */
 
 /**
@@ -66,6 +66,7 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
   private var fuseboxNetworkInspectionEnabledCache: Boolean? = null
   private var hideOffscreenVirtualViewsOnIOSCache: Boolean? = null
   private var preparedTextCacheSizeCache: Double? = null
+  private var preventShadowTreeCommitExhaustionWithLockingCache: Boolean? = null
   private var releaseImageDataWhenConsumedCache: Boolean? = null
   private var skipActivityIdentityAssertionOnHostPauseCache: Boolean? = null
   private var traceTurboModulePromiseRejectionsOnAndroidCache: Boolean? = null
@@ -496,6 +497,15 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
     return cached
   }
 
+  override fun preventShadowTreeCommitExhaustionWithLocking(): Boolean {
+    var cached = preventShadowTreeCommitExhaustionWithLockingCache
+    if (cached == null) {
+      cached = ReactNativeFeatureFlagsCxxInterop.preventShadowTreeCommitExhaustionWithLocking()
+      preventShadowTreeCommitExhaustionWithLockingCache = cached
+    }
+    return cached
+  }
+
   override fun releaseImageDataWhenConsumed(): Boolean {
     var cached = releaseImageDataWhenConsumedCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxInterop.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<69a932d66b50ac8c059b0dab68313616>>
+ * @generated SignedSource<<d1da48f826bc6a1793d1630cb89cb5c1>>
  */
 
 /**
@@ -120,6 +120,8 @@ public object ReactNativeFeatureFlagsCxxInterop {
 
   @DoNotStrip @JvmStatic public external fun preparedTextCacheSize(): Double
 
+  @DoNotStrip @JvmStatic public external fun preventShadowTreeCommitExhaustionWithLocking(): Boolean
+
   @DoNotStrip @JvmStatic public external fun releaseImageDataWhenConsumed(): Boolean
 
   @DoNotStrip @JvmStatic public external fun skipActivityIdentityAssertionOnHostPause(): Boolean

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsDefaults.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<90dadccf847e0f5fc24d3b1090bba82f>>
+ * @generated SignedSource<<99019349a8f3642c42e6dac5f1476e7f>>
  */
 
 /**
@@ -115,6 +115,8 @@ public open class ReactNativeFeatureFlagsDefaults : ReactNativeFeatureFlagsProvi
 
   override fun preparedTextCacheSize(): Double = 200.0
 
+  override fun preventShadowTreeCommitExhaustionWithLocking(): Boolean = false
+
   override fun releaseImageDataWhenConsumed(): Boolean = false
 
   override fun skipActivityIdentityAssertionOnHostPause(): Boolean = false

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsLocalAccessor.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<8663dc63e60ec71e7bf1d5645c39c77f>>
+ * @generated SignedSource<<23605f090bfbebe911caa9d3d834d3e8>>
  */
 
 /**
@@ -70,6 +70,7 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
   private var fuseboxNetworkInspectionEnabledCache: Boolean? = null
   private var hideOffscreenVirtualViewsOnIOSCache: Boolean? = null
   private var preparedTextCacheSizeCache: Double? = null
+  private var preventShadowTreeCommitExhaustionWithLockingCache: Boolean? = null
   private var releaseImageDataWhenConsumedCache: Boolean? = null
   private var skipActivityIdentityAssertionOnHostPauseCache: Boolean? = null
   private var traceTurboModulePromiseRejectionsOnAndroidCache: Boolean? = null
@@ -546,6 +547,16 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
     return cached
   }
 
+  override fun preventShadowTreeCommitExhaustionWithLocking(): Boolean {
+    var cached = preventShadowTreeCommitExhaustionWithLockingCache
+    if (cached == null) {
+      cached = currentProvider.preventShadowTreeCommitExhaustionWithLocking()
+      accessedFeatureFlags.add("preventShadowTreeCommitExhaustionWithLocking")
+      preventShadowTreeCommitExhaustionWithLockingCache = cached
+    }
+    return cached
+  }
+
   override fun releaseImageDataWhenConsumed(): Boolean {
     var cached = releaseImageDataWhenConsumedCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsProvider.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<07caa03ff4d6e1e624a9a71d5aeceebe>>
+ * @generated SignedSource<<780793412b76f101be1569d7a866c435>>
  */
 
 /**
@@ -115,6 +115,8 @@ public interface ReactNativeFeatureFlagsProvider {
 
   @DoNotStrip public fun preparedTextCacheSize(): Double
 
+  @DoNotStrip public fun preventShadowTreeCommitExhaustionWithLocking(): Boolean
+
   @DoNotStrip public fun releaseImageDataWhenConsumed(): Boolean
 
   @DoNotStrip public fun skipActivityIdentityAssertionOnHostPause(): Boolean

packages/react-native/ReactAndroid/src/main/jni/react/featureflags/JReactNativeFeatureFlagsCxxInterop.cpp

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<8121b9fc632bb1db16a1554ea5dd0b87>>
+ * @generated SignedSource<<f310a5dc27fd655eab4445cb25d4c85c>>
  */
 
 /**
@@ -315,6 +315,12 @@ class ReactNativeFeatureFlagsJavaProvider
     return method(javaProvider_);
   }
 
+  bool preventShadowTreeCommitExhaustionWithLocking() override {
+    static const auto method =
+        getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("preventShadowTreeCommitExhaustionWithLocking");
+    return method(javaProvider_);
+  }
+
   bool releaseImageDataWhenConsumed() override {
     static const auto method =
         getReactNativeFeatureFlagsProviderJavaClass()->getMethod<jboolean()>("releaseImageDataWhenConsumed");
@@ -639,6 +645,11 @@ double JReactNativeFeatureFlagsCxxInterop::preparedTextCacheSize(
   return ReactNativeFeatureFlags::preparedTextCacheSize();
 }
 
+bool JReactNativeFeatureFlagsCxxInterop::preventShadowTreeCommitExhaustionWithLocking(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
+  return ReactNativeFeatureFlags::preventShadowTreeCommitExhaustionWithLocking();
+}
+
 bool JReactNativeFeatureFlagsCxxInterop::releaseImageDataWhenConsumed(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop> /*unused*/) {
   return ReactNativeFeatureFlags::releaseImageDataWhenConsumed();
@@ -883,6 +894,9 @@ void JReactNativeFeatureFlagsCxxInterop::registerNatives() {
       makeNativeMethod(
         "preparedTextCacheSize",
         JReactNativeFeatureFlagsCxxInterop::preparedTextCacheSize),
+      makeNativeMethod(
+        "preventShadowTreeCommitExhaustionWithLocking",
+        JReactNativeFeatureFlagsCxxInterop::preventShadowTreeCommitExhaustionWithLocking),
       makeNativeMethod(
         "releaseImageDataWhenConsumed",
         JReactNativeFeatureFlagsCxxInterop::releaseImageDataWhenConsumed),

packages/react-native/ReactAndroid/src/main/jni/react/featureflags/JReactNativeFeatureFlagsCxxInterop.h

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<1cfdc8abd4434d8b40d685b9beb79e3c>>
+ * @generated SignedSource<<8c1da07c0b7d2053f7fdaac4326c3ac1>>
  */
 
 /**
@@ -168,6 +168,9 @@ class JReactNativeFeatureFlagsCxxInterop
   static double preparedTextCacheSize(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 
+  static bool preventShadowTreeCommitExhaustionWithLocking(
+    facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
+
   static bool releaseImageDataWhenConsumed(
     facebook::jni::alias_ref<JReactNativeFeatureFlagsCxxInterop>);
 

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.cpp

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<3e49ef5b83d57ba597a2675693046ec2>>
+ * @generated SignedSource<<355265aa8f13e3f307d6e30db6b80d41>>
  */
 
 /**
@@ -210,6 +210,10 @@ double ReactNativeFeatureFlags::preparedTextCacheSize() {
   return getAccessor().preparedTextCacheSize();
 }
 
+bool ReactNativeFeatureFlags::preventShadowTreeCommitExhaustionWithLocking() {
+  return getAccessor().preventShadowTreeCommitExhaustionWithLocking();
+}
+
 bool ReactNativeFeatureFlags::releaseImageDataWhenConsumed() {
   return getAccessor().releaseImageDataWhenConsumed();
 }

packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.h

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<191db129f17bcf82d2d133484124867b>>
+ * @generated SignedSource<<c584290ce61ee78bdf843c19dd40c40d>>
  */
 
 /**
@@ -269,6 +269,11 @@ class ReactNativeFeatureFlags {
    */
   RN_EXPORT static double preparedTextCacheSize();
 
+  /**
+   * Enables a new mechanism in ShadowTree to prevent problems caused by multiple threads trying to commit concurrently. If a thread tries to commit a few times unsuccessfully, it will acquire a lock and try again.
+   */
+  RN_EXPORT static bool preventShadowTreeCommitExhaustionWithLocking();
+
   /**
    * Releases the cached image data when it is consumed by the observers.
    */