From 19b615ef3329d0a67160e2ea603a0563370e3651 Mon Sep 17 00:00:00 2001
From: adminPyf <3043130461@qq.com>
Date: Wed, 9 Jun 2021 22:10:57 +0800
Subject: [PATCH] =?UTF-8?q?linux=20=E4=BF=A1=E5=8F=B7=E5=A4=84=E7=90=86?=
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---
 test_signal/makefile        |  2 ++
 test_signal/test_signal.cpp | 60 +++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 test_signal/makefile
 create mode 100644 test_signal/test_signal.cpp

diff --git a/test_signal/makefile b/test_signal/makefile
new file mode 100644
index 0000000..d3db79a
--- /dev/null
+++ b/test_signal/makefile
@@ -0,0 +1,2 @@
+test_signal:test_signal.cpp
+	g++ $^ -o $@ -levent
\ No newline at end of file
diff --git a/test_signal/test_signal.cpp b/test_signal/test_signal.cpp
new file mode 100644
index 0000000..5b6404a
--- /dev/null
+++ b/test_signal/test_signal.cpp
@@ -0,0 +1,60 @@
+#include <iostream>
+#include <event2/event.h>
+#include <signal.h>
+
+using namespace std;
+
+//sock 文件描述符  which 事件类型 arg传递的参数
+static void Ctrl_C(int sock,short which , void* arg){
+    cout << "Ctrl_C" << endl;
+}
+
+static void Kill(int sock,short which , void* arg){
+    cout << "Kill" << endl;
+    
+    event *ev = (event*)arg;
+    //如果处于非待决
+    if(!evsignal_pending(ev,NULL)){
+        event_del(ev);
+        event_add(ev,NULL); //再次添加进来
+    }
+}
+
+int main(int agrc,char** agrv){
+
+    event_base *base = event_base_new();
+
+    //添加信号 ctrl+c ,处于no pending 状态
+    //evsignal_new 隐藏的状态 EV_SIGNAL|EV_PERSIST
+    event *csig = evsignal_new(base,SIGINT,Ctrl_C,base);
+
+    if(!csig){
+        cerr << "SIGNAL evsignal_new failed!" << endl;
+        return -1;
+    }
+
+    if (event_add(csig,0) != 0){
+        cerr << "SIGANL event_add failed" << endl;
+    }
+
+    //添加kill信号
+    //非持久事件，只进入一次 event_self_cbarg()传递当前的event
+    event *ksig = event_new(base,SIGTERM,EV_SIGNAL,Kill,
+        event_self_cbarg());
+
+    if(!ksig){
+        cerr << "SIGNAL evsignal_new failed!" << endl;
+        return -1;
+    }
+
+    if (event_add(ksig,0) != 0){
+        cerr << "SIGANL event_add failed" << endl;
+    }
+    //进入事件主循环
+    event_base_dispatch(base);
+    event_free(csig);
+    event_base_free(base);
+   
+    return 0;
+
+}
\ No newline at end of file