From 1cd90b1d14daac0ab0d48eda5677ba97998de99b Mon Sep 17 00:00:00 2001
From: Andrii Grynenko <andrii@fb.com>
Date: Thu, 8 Sep 2016 10:29:01 -0700
Subject: [PATCH] Remove runAfterDrain()

Reviewed By: djwatson

Differential Revision: D3832835

fbshipit-source-id: b5cabc00758fd80b314424e4224458e2d50ddb5c
---
 folly/io/async/EventBase.cpp | 13 -------------
 folly/io/async/EventBase.h   | 13 -------------
 2 files changed, 26 deletions(-)

diff --git a/folly/io/async/EventBase.cpp b/folly/io/async/EventBase.cpp
index e250c364..a4cbfa20 100644
--- a/folly/io/async/EventBase.cpp
+++ b/folly/io/async/EventBase.cpp
@@ -236,12 +236,6 @@ EventBase::~EventBase() {
     event_base_free(evb_);
   }
 
-  while (!runAfterDrainCallbacks_.empty()) {
-    LoopCallback* callback = &runAfterDrainCallbacks_.front();
-    runAfterDrainCallbacks_.pop_front();
-    callback->runLoopCallback();
-  }
-
   {
     std::lock_guard<std::mutex> lock(localStorageMutex_);
     for (auto storage : localStorageToDtor_) {
@@ -549,13 +543,6 @@ void EventBase::runInLoop(Func cob, bool thisIteration) {
   }
 }
 
-void EventBase::runAfterDrain(Func cob) {
-  auto callback = new FunctionLoopCallback(std::move(cob));
-  std::lock_guard<std::mutex> lg(runAfterDrainCallbacksMutex_);
-  callback->cancelLoopCallback();
-  runAfterDrainCallbacks_.push_back(*callback);
-}
-
 void EventBase::runOnDestruction(LoopCallback* callback) {
   std::lock_guard<std::mutex> lg(onDestructionCallbacksMutex_);
   callback->cancelLoopCallback();
diff --git a/folly/io/async/EventBase.h b/folly/io/async/EventBase.h
index 7f8aaeb8..16d406ea 100644
--- a/folly/io/async/EventBase.h
+++ b/folly/io/async/EventBase.h
@@ -318,15 +318,6 @@ class EventBase : private boost::noncopyable,
    */
   void runOnDestruction(LoopCallback* callback);
 
-  /**
-   * Adds the given callback to a queue of things run after the notification
-   * queue is drained before the destruction of current EventBase.
-   *
-   * Note: will be called from the thread that invoked EventBase destructor,
-   *       after the final run of loop callbacks.
-   */
-  void runAfterDrain(Func cob);
-
   /**
    * Adds a callback that will run immediately *before* the event loop.
    * This is very similar to runInLoop(), but will not cause the loop to break:
@@ -677,7 +668,6 @@ class EventBase : private boost::noncopyable,
   LoopCallbackList loopCallbacks_;
   LoopCallbackList runBeforeLoopCallbacks_;
   LoopCallbackList onDestructionCallbacks_;
-  LoopCallbackList runAfterDrainCallbacks_;
 
   // This will be null most of the time, but point to currentCallbacks
   // if we are in the middle of running loop callbacks, such that
@@ -752,9 +742,6 @@ class EventBase : private boost::noncopyable,
   // allow runOnDestruction() to be called from any threads
   std::mutex onDestructionCallbacksMutex_;
 
-  // allow runAfterDrain() to be called from any threads
-  std::mutex runAfterDrainCallbacksMutex_;
-
   // see EventBaseLocal
   friend class detail::EventBaseLocalBase;
   template <typename T> friend class EventBaseLocal;
-- 
2.34.1