From a0228255c28b875ffcd90ccb2bad3b17c02b5308 Mon Sep 17 00:00:00 2001
From: fengzero <fengzero@fengzero.com>
Date: Wed, 23 Mar 2022 10:33:23 +0000
Subject: [PATCH 1/2] prevent node deletion when there is a subscribed group in
 the node

---
 src/core/neu_manager.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/core/neu_manager.c b/src/core/neu_manager.c
index 0ee7a60f..f70e0499 100644
--- a/src/core/neu_manager.c
+++ b/src/core/neu_manager.c
@@ -1392,6 +1392,26 @@ int neu_manager_del_node(neu_manager_t *manager, neu_node_id_t node_id)
     adapter_id_t          adapter_id;
     neu_adapter_t *       adapter = NULL;
     adapter_reg_entity_t *reg_entity;
+    vector_t              group_config;
+
+    vector_init(&group_config, 1, sizeof(neu_taggrp_config_t *));
+
+    if (neu_manager_get_grp_configs(manager, node_id, &group_config) == 0) {
+        VECTOR_FOR_EACH(&group_config, iter)
+        {
+            neu_taggrp_config_t *config =
+                *(neu_taggrp_config_t **) iterator_get(&iter);
+            if (neu_taggrp_cfg_get_subpipes(config)->size != 0) {
+                rv = NEU_ERR_GRP_CONFIG_IN_USE;
+                break;
+            }
+        }
+    }
+    vector_uninit(&group_config);
+
+    if (rv != 0) {
+        return rv;
+    }
 
     adapter_id = neu_manager_adapter_id_from_node_id(manager, node_id);
 

From c4a66411854e6b0f0025254d9ac57ce470daa868 Mon Sep 17 00:00:00 2001
From: fengzero <fengzero@fengzero.com>
Date: Thu, 24 Mar 2022 03:25:56 +0000
Subject: [PATCH 2/2] use c11 standard

It is not recommended to use <threads.h>, because glibc2.28 is required.
---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d62f7744..ad695672 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,6 +4,7 @@ cmake_minimum_required(VERSION 3.12)
 project(neuron)
 
 enable_language(C)
+set(CMAKE_C_STANDARD 11)
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)