From 2eb20dff28836b1b13f438f4fb202c4069090018 Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Sat, 1 Mar 2025 13:29:38 +0300
Subject: [PATCH] Do not crash on io_uring initialization failure in
 node-vitastor

---
 node-binding/client.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/node-binding/client.cc b/node-binding/client.cc
index 68f01c0c..3e6cd156 100644
--- a/node-binding/client.cc
+++ b/node-binding/client.cc
@@ -81,6 +81,12 @@ NAN_METHOD(NodeVitastor::Create)
     NodeVitastor* cli = new NodeVitastor();
     cli->c = vitastor_c_create_uring_json(c_cfg, cfg.size());
     delete[] c_cfg;
+    if (!cli->c)
+    {
+        ERRORF("NodeVitastor: failed to initialize io_uring (old kernel or insufficient ulimit -l?)");
+        Nan::ThrowError("failed to initialize io_uring (old kernel or insufficient ulimit -l?)");
+        return;
+    }
 
     int res = vitastor_c_uring_register_eventfd(cli->c);
     if (res >= 0)