添加RocketMQ相关知识点

andrewbytecoder · andrewbytecoder · commit a3d5330b5559 · 2024-10-18T15:35:41.000+08:00
diff --git a/Linux/linux_command.adoc b/Linux/linux_command.adoc
@@ -21,6 +21,21 @@ endif::rootpath[]
 
 
 
+=== sysctl命令
+
+==== 查看所有系统配置列表
+
+可以使用 `sysctl -a` 列出当前所有系统配置的列表，比如：
+
+[source,cpp]
+----
+$sysctl -a |grep time |grep wait
+net.netfilter.nf_conntrack_dccp_timeout_timewait = 240
+net.netfilter.nf_conntrack_sctp_timeout_cookie_wait = 3
+net.netfilter.nf_conntrack_tcp_timeout_close_wait = 60
+net.netfilter.nf_conntrack_tcp_timeout_fin_wait = 120
+net.netfilter.nf_conntrack_tcp_timeout_time_wait = 120
+----
 
 
 
diff --git a/src/main.cpp b/src/main.cpp
@@ -30,16 +30,12 @@ using namespace std;
 int main() {
 
 
-    std::set<int> setAlices{1};
-    std::set<int> setAlices2{2};
-    std::set<int> setRet{};
+    std::this_thread::sleep_for(std::chrono::seconds(18));
+
+
+
 
-    std::set_difference(setAlices2.begin(), setAlices2.end(),
-                        setAlices.begin(), setAlices.end(), std::inserter(setRet, setRet.begin()));
 
-    for (const auto& index : setRet) {
-        std::cout << index << std::endl;
-    }
 
 
 
