From 296a0da4fcbd31d1fe7d900452580a4a571a0f26 Mon Sep 17 00:00:00 2001
From: Igor Ganichev <iga@google.com>
Date: Fri, 12 Jul 2019 15:27:03 -0700
Subject: [PATCH] Remove unused EagerContext::child_threads_

PiperOrigin-RevId: 257879975
---
 tensorflow/core/common_runtime/eager/context.cc | 8 --------
 tensorflow/core/common_runtime/eager/context.h  | 4 ----
 2 files changed, 12 deletions(-)

diff --git a/tensorflow/core/common_runtime/eager/context.cc b/tensorflow/core/common_runtime/eager/context.cc
index ef2905bc018..1b7be809f68 100644
--- a/tensorflow/core/common_runtime/eager/context.cc
+++ b/tensorflow/core/common_runtime/eager/context.cc
@@ -266,10 +266,6 @@ EagerContext::~EagerContext() {
   executor_.WaitForAllPendingNodes().IgnoreError();
   rendezvous_->Unref();
 
-  for (auto& thread : child_threads_) {
-    thread.reset();
-  }
-
   // Release resources ahead of destroying the device manager as the resource
   // destructors (e.g. ~IteratorResource) assume devices still exist.
   for (auto device : local_device_mgr()->ListDevices()) {
@@ -277,10 +273,6 @@ EagerContext::~EagerContext() {
   }
 }
 
-void EagerContext::AddChildThread(std::unique_ptr<Thread> thread) {
-  child_threads_.push_back(std::move(thread));
-}
-
 bool EagerContext::FindFunctionByName(const string& name) {
   mutex_lock l(functions_mu_);
   return func_lib_def_.Find(name) != nullptr;
diff --git a/tensorflow/core/common_runtime/eager/context.h b/tensorflow/core/common_runtime/eager/context.h
index 774fa0e43f8..054cf2e3e4b 100644
--- a/tensorflow/core/common_runtime/eager/context.h
+++ b/tensorflow/core/common_runtime/eager/context.h
@@ -323,9 +323,6 @@ class EagerContext : public core::RefCounted {
 
   tensorflow::Env* TFEnv() const { return env_; }
 
-  // All child threads will be reset() when destructing EagerContext.
-  void AddChildThread(std::unique_ptr<Thread> thread);
-
   Status FindDeviceFromName(const char* device_name, Device** device) const;
 
   bool IsLocal(const Device* d) const;
@@ -454,7 +451,6 @@ class EagerContext : public core::RefCounted {
 
   bool use_send_tensor_rpc_;
   const bool pin_small_ops_to_cpu_;
-  std::vector<std::unique_ptr<tensorflow::Thread>> child_threads_;
 };
 
 }  // namespace tensorflow