From f4328c12dec0dc613d4ff58f12b35892dedebd54 Mon Sep 17 00:00:00 2001
From: Wilco Waaijer <w_waaijer@hotmail.com>
Date: Sun, 28 Dec 2025 01:08:08 +0100
Subject: [PATCH] fix(hci): Check stop flag periodically, even without incoming
 data

---
 src/BluetoothHciSocket.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/BluetoothHciSocket.cpp b/src/BluetoothHciSocket.cpp
index 1c0e69e..649160f 100644
--- a/src/BluetoothHciSocket.cpp
+++ b/src/BluetoothHciSocket.cpp
@@ -672,6 +672,17 @@ bool BluetoothHciSocket::EnsureSocket(const Napi::CallbackInfo& info) {
     this->EmitError(info, "socket creation failed");
     return false;
   }
+
+  struct timeval tv = {};
+  
+  memset(&tv, 0, sizeof(tv));
+  tv.tv_sec = 1;
+  tv.tv_usec = 0;
+  
+  // Allow the poll thread to check the stop flag periodically even when no data is incoming
+  if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) < 0) {
+    this->EmitError(info, "setsockopt failed for SO_RCVTIMEO");
+  }
   
   this->_socket = fd;
   return true;