feat: 捕捉指定信号 signal() 运用

Author: XMuli

15_sys_usr_signal/signal

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <signal.h>
+
+void func(int no); //用作回调函数，给 signal() 调用
+
+int main(int argc, char *argv[])
+{
+    signal(SIGINT, func); //设置信号捕捉函数， 捕捉 ctrl + c
+
+    while (true) {
+        printf("Keep the thread running for the non-death state.\n"); 
+        sleep(1);
+    }
+
+    return 0;
+}
+
+void func(int no) 
+{
+    printf("捕捉的信号为: %d\n", no);
+}