From f51fa9695a3fe18f0fe872d3eea3a966901ef188 Mon Sep 17 00:00:00 2001
From: Uy Ha <hchanuy@gmail.com>
Date: Wed, 7 Jun 2023 14:27:26 +0000
Subject: [PATCH 1/2] add function for adding file descriptor to poller_t

---
 zmq.hpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/zmq.hpp b/zmq.hpp
index f3a5b8a..35f3e76 100644
--- a/zmq.hpp
+++ b/zmq.hpp
@@ -2663,6 +2663,17 @@ template<typename T = no_user_data> class poller_t
         add_impl(socket, events, nullptr);
     }
 
+    template<
+      typename Dummy = void,
+      typename =
+        typename std::enable_if<!std::is_same<T, no_user_data>::value, Dummy>::type>
+    void add(fd_t fd, event_flags events, T *user_data)
+    {
+        add_impl(fd, events, user_data);
+    }
+
+    void add(fd_t fd, event_flags events) { add_impl(fd, events, nullptr); }
+
     void remove(zmq::socket_ref socket)
     {
         if (0 != zmq_poller_remove(poller_ptr.get(), socket.handle())) {
@@ -2729,6 +2740,15 @@ template<typename T = no_user_data> class poller_t
             throw error_t();
         }
     }
+
+    void add_impl(fd_t fd, event_flags events, T *user_data)
+    {
+        if (0
+            != zmq_poller_add(poller_ptr.get(), fd, user_data,
+                              static_cast<short>(events))) {
+            throw error_t();
+        }
+    }
 };
 #endif //  defined(ZMQ_BUILD_DRAFT_API) && defined(ZMQ_CPP11) && defined(ZMQ_HAVE_POLLER)
 

From 36b6053f92f95e84c0548775b665da167c06dd8f Mon Sep 17 00:00:00 2001
From: Uy Ha <hchanuy@gmail.com>
Date: Wed, 7 Jun 2023 14:51:03 +0000
Subject: [PATCH 2/2] call the correct function

---
 zmq.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/zmq.hpp b/zmq.hpp
index 35f3e76..34fe163 100644
--- a/zmq.hpp
+++ b/zmq.hpp
@@ -2744,8 +2744,8 @@ template<typename T = no_user_data> class poller_t
     void add_impl(fd_t fd, event_flags events, T *user_data)
     {
         if (0
-            != zmq_poller_add(poller_ptr.get(), fd, user_data,
-                              static_cast<short>(events))) {
+            != zmq_poller_add_fd(poller_ptr.get(), fd, user_data,
+                                 static_cast<short>(events))) {
             throw error_t();
         }
     }