From de6d6c9a5cb76177c8a5b1af67530e0987992056 Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Sun, 23 Sep 2018 16:14:56 -0700
Subject: [PATCH] wpiutil: EventLoopRunner: Allow getting the loop shared_ptr.

---
 wpiutil/src/main/native/cpp/EventLoopRunner.cpp       | 5 +++++
 wpiutil/src/main/native/include/wpi/EventLoopRunner.h | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/wpiutil/src/main/native/cpp/EventLoopRunner.cpp b/wpiutil/src/main/native/cpp/EventLoopRunner.cpp
index 2061e96681..5d90d531d0 100644
--- a/wpiutil/src/main/native/cpp/EventLoopRunner.cpp
+++ b/wpiutil/src/main/native/cpp/EventLoopRunner.cpp
@@ -63,3 +63,8 @@ void EventLoopRunner::ExecSync(LoopFunc func) {
     }
   }
 }
+
+std::shared_ptr<uv::Loop> EventLoopRunner::GetLoop() {
+  if (auto thr = m_owner.GetThread()) return thr->m_loop;
+  return nullptr;
+}
diff --git a/wpiutil/src/main/native/include/wpi/EventLoopRunner.h b/wpiutil/src/main/native/include/wpi/EventLoopRunner.h
index 1e643ba7ff..71c0f681c7 100644
--- a/wpiutil/src/main/native/include/wpi/EventLoopRunner.h
+++ b/wpiutil/src/main/native/include/wpi/EventLoopRunner.h
@@ -9,6 +9,7 @@
 #define WPIUTIL_WPI_EVENTLOOPRUNNER_H_
 
 #include <functional>
+#include <memory>
 
 #include "wpi/SafeThread.h"
 #include "wpi/uv/Loop.h"
@@ -42,6 +43,12 @@ class EventLoopRunner {
    */
   void ExecSync(LoopFunc func);
 
+  /**
+   * Get the loop.  If the loop thread is not running, returns nullptr.
+   * @return The loop
+   */
+  std::shared_ptr<uv::Loop> GetLoop();
+
  private:
   class Thread;
   SafeThreadOwner<Thread> m_owner;