From 00d60b2a71844590f8788b4aba0d46530fbb4119 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=20=ED=99=94=EC=A7=84?= <hwajin.lee@iarkdata.com>
Date: Wed, 17 Mar 2021 18:32:38 +0900
Subject: [PATCH] Add new file

---
 simpleChatting/comn.h | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 simpleChatting/comn.h

diff --git a/simpleChatting/comn.h b/simpleChatting/comn.h
new file mode 100644
index 0000000..de89e97
--- /dev/null
+++ b/simpleChatting/comn.h
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+#define MAX_USER_CNT 2
+#define MAX_USER_NAME 10
+#define MAX_CHAT_LENGTH 255
+
+int isServerConn = -1;
+int shmid = 0;
+void *shmaddr = NULL;
+struct shmid_ds info;
+
+typedef struct UserData
+{
+    int pid;
+    char name[MAX_USER_NAME];
+}UserData;
+
+typedef struct SharedData
+{
+    int pid;
+    UserData user[MAX_USER_CNT];
+}SharedData;
+
+typedef struct MessageData
+{
+    int send_pid;
+    char content[MAX_CHAT_LENGTH];
+}MsgData;
-- 
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