From 138cbb94b245f424d963cb97e773da6081b53010 Mon Sep 17 00:00:00 2001
From: Peter Johnson <johnson.peter@gmail.com>
Date: Wed, 20 Oct 2021 08:44:33 -0700
Subject: [PATCH] [wpiutil] uv::Async: Add direct call for no-parameter
 specialization (#3648)

---
 wpiutil/src/main/native/include/wpi/uv/Async.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/wpiutil/src/main/native/include/wpi/uv/Async.h b/wpiutil/src/main/native/include/wpi/uv/Async.h
index 3598d09334..49f3dde4ed 100644
--- a/wpiutil/src/main/native/include/wpi/uv/Async.h
+++ b/wpiutil/src/main/native/include/wpi/uv/Async.h
@@ -151,7 +151,12 @@ class Async<> final : public HandleImpl<Async<>, uv_async_t> {
    */
   void Send() {
     if (auto loop = m_loop.lock()) {
-      Invoke(&uv_async_send, GetRaw());
+      if (loop->GetThreadId() == std::this_thread::get_id()) {
+        // called from within the loop, just call the function directly
+        wakeup();
+      } else {
+        Invoke(&uv_async_send, GetRaw());
+      }
     }
   }