From 04c874bd9c6b15274fd87acf10cb3533b2eabc0d Mon Sep 17 00:00:00 2001
From: Valentin Shergin <shergin@fb.com>
Date: Thu, 17 Sep 2020 08:55:20 -0700
Subject: [PATCH] Fabric: Using `thread_local` keyword instead on own
 implementation in TransactionTelemetry

Summary:
Apparently, there is C++ keyword for this.

Changelog: [Internal] Fabric-specific internal change.

Reviewed By: sammy-SC

Differential Revision: D23754284

fbshipit-source-id: 5f9bbcc72d9c586173624869d614f12d2319fb7b
---
 .../react/renderer/mounting/TransactionTelemetry.cpp      | 8 ++++----
 .../react/renderer/mounting/TransactionTelemetry.h        | 1 -
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/ReactCommon/react/renderer/mounting/TransactionTelemetry.cpp b/ReactCommon/react/renderer/mounting/TransactionTelemetry.cpp
index f1ac3f659fe..d81ed7c6bf4 100644
--- a/ReactCommon/react/renderer/mounting/TransactionTelemetry.cpp
+++ b/ReactCommon/react/renderer/mounting/TransactionTelemetry.cpp
@@ -12,18 +12,18 @@
 namespace facebook {
 namespace react {
 
-using ThreadLocalTransactionTelemetry = ThreadStorage<TransactionTelemetry *>;
+thread_local TransactionTelemetry *threadLocalTransactionTelemetry = nullptr;
 
 TransactionTelemetry *TransactionTelemetry::threadLocalTelemetry() {
-  return ThreadLocalTransactionTelemetry::getInstance().get().value_or(nullptr);
+  return threadLocalTransactionTelemetry;
 }
 
 void TransactionTelemetry::setAsThreadLocal() {
-  ThreadLocalTransactionTelemetry::getInstance().set(this);
+  threadLocalTransactionTelemetry = this;
 }
 
 void TransactionTelemetry::unsetAsThreadLocal() {
-  ThreadLocalTransactionTelemetry::getInstance().set(nullptr);
+  threadLocalTransactionTelemetry = nullptr;
 }
 
 void TransactionTelemetry::willCommit() {
diff --git a/ReactCommon/react/renderer/mounting/TransactionTelemetry.h b/ReactCommon/react/renderer/mounting/TransactionTelemetry.h
index b71e10bae33..88ef2a23b0e 100644
--- a/ReactCommon/react/renderer/mounting/TransactionTelemetry.h
+++ b/ReactCommon/react/renderer/mounting/TransactionTelemetry.h
@@ -11,7 +11,6 @@
 #include <cstdint>
 
 #include <react/utils/Telemetry.h>
-#include <react/utils/ThreadStorage.h>
 
 namespace facebook {
 namespace react {