From 39abc442b9bf633cb91f65cfa2cf3cfdc01a8cad Mon Sep 17 00:00:00 2001
From: pv23f6mjk <983269649@qq.com>
Date: Sat, 16 Apr 2022 22:13:51 +0800
Subject: [PATCH] Add process

---
 process | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 process

diff --git a/process b/process
new file mode 100644
index 0000000..d7fc97c
--- /dev/null
+++ b/process
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+int main(int argc, char const *argv[])
+{
+	int p1=fork();
+	if (p1==0)
+	{
+		/* code */
+		for (int i = 0; i < 2; ++i)
+		{
+			/* code */
+			printf("child: %d\n",getpid());
+		}
+	}else if(p1>0){
+		int p2=fork();
+		if(p2==0){
+			for (int i = 0; i < 3; ++i)
+			{
+				/* code */
+				printf("child: %d\n",getpid());
+			}
+		}else if(p2>0){
+			for (int i = 0; i < 4; ++i)
+			{
+				/* code */
+				printf("parent: %d\n",getpid());
+			}
+		}else{
+			printf("Failed to create p2.\n");
+			exit(1);
+		}
+	}else{
+		printf("Failed to create p1.\n");
+		exit(1);
+	}
+	return 0;
+}
\ No newline at end of file