From c9a68baa69c417da7c40d1cb7fe24d60d821a46f Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Fri, 10 Apr 2026 23:58:36 -1000
Subject: [PATCH] [status_led] Remove unrelated changes from application.cpp

---
 esphome/core/application.cpp | 36 +++++++++++++++++++++++++-----------
 1 file changed, 25 insertions(+), 11 deletions(-)

diff --git a/esphome/core/application.cpp b/esphome/core/application.cpp
index d83b6bf2bec..1766f35dd65 100644
--- a/esphome/core/application.cpp
+++ b/esphome/core/application.cpp
@@ -456,12 +456,32 @@ void Application::enable_pending_loops_() {
   }
 }
 
-#if defined(USE_OTA) && defined(USE_LWIP_FAST_SELECT)
-// C trampoline called from lwip_fast_select.c when the listener filter matches.
-extern "C" void esphome_wake_ota_component_any_context() { App.wake_ota_component_any_context(); }
-#endif
+#ifdef USE_LWIP_FAST_SELECT
+bool Application::register_socket(struct lwip_sock *sock) {
+  // It modifies monitored_sockets_ without locking — must only be called from the main loop.
+  if (sock == nullptr)
+    return false;
+  esphome_lwip_hook_socket(sock);
+  this->monitored_sockets_.push_back(sock);
+  return true;
+}
 
-#ifdef USE_HOST
+void Application::unregister_socket(struct lwip_sock *sock) {
+  // It modifies monitored_sockets_ without locking — must only be called from the main loop.
+  for (size_t i = 0; i < this->monitored_sockets_.size(); i++) {
+    if (this->monitored_sockets_[i] != sock)
+      continue;
+
+    // Swap with last element and pop - O(1) removal since order doesn't matter.
+    // No need to unhook the netconn callback — all LwIP sockets share the same
+    // static event_callback, and the socket will be closed by the caller.
+    if (i < this->monitored_sockets_.size() - 1)
+      this->monitored_sockets_[i] = this->monitored_sockets_.back();
+    this->monitored_sockets_.pop_back();
+    return;
+  }
+}
+#elif defined(USE_HOST)
 bool Application::register_socket_fd(int fd) {
   // WARNING: This function is NOT thread-safe and must only be called from the main loop
   // It modifies socket_fds_ and related variables without locking
@@ -541,12 +561,6 @@ void Application::yield_with_select_(uint32_t delay_ms) {
     // ret > 0: socket(s) have data ready - normal and expected
     // ret == 0: timeout occurred - normal and expected
     if (ret >= 0) [[likely]] {
-#ifdef USE_OTA
-      // No-op today — host has no esphome OTA platform, so ota_wake_component_ is null.
-      if (ret > 0) {
-        this->wake_ota_component_any_context();
-      }
-#endif
       // Yield if zero timeout since select(0) only polls without yielding
       if (delay_ms == 0) [[unlikely]] {
         yield();