diff --git a/ZE-Standard-Libraries.xcodeproj/xcuserdata/huyibing.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/ZE-Standard-Libraries.xcodeproj/xcuserdata/huyibing.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
index abe8217..ee2d7ff 100644
--- a/ZE-Standard-Libraries.xcodeproj/xcuserdata/huyibing.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
+++ b/ZE-Standard-Libraries.xcodeproj/xcuserdata/huyibing.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -633,7 +633,7 @@
       <BreakpointProxy
          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
          <BreakpointContent
-            shouldBeEnabled = "Yes"
+            shouldBeEnabled = "No"
             ignoreCount = "0"
             continueAfterRunningActions = "No"
             filePath = "test.c"
@@ -641,7 +641,9 @@
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
             startingLineNumber = "100"
-            endingLineNumber = "100">
+            endingLineNumber = "100"
+            landmarkName = "main"
+            landmarkType = "9">
          </BreakpointContent>
       </BreakpointProxy>
       <BreakpointProxy
@@ -1023,7 +1025,9 @@
             startingColumnNumber = "9223372036854775807"
             endingColumnNumber = "9223372036854775807"
             startingLineNumber = "99"
-            endingLineNumber = "99">
+            endingLineNumber = "99"
+            landmarkName = "main"
+            landmarkType = "9">
          </BreakpointContent>
       </BreakpointProxy>
       <BreakpointProxy
diff --git a/communicate/communicate.c b/communicate/communicate.c
index c3cf45f..5dfdac9 100644
--- a/communicate/communicate.c
+++ b/communicate/communicate.c
@@ -293,3 +293,46 @@ List *_doStandardDataToList(unsigned int type, void *value, List *er_list){
     insertInTail(p_list, p_node);
     return rtn_list;
 }
+
+MSG *createMessage(char *title, void *data, unsigned long data_size){
+    MSG *p_msg = malloc(sizeof(MSG) + data_size);
+    p_msg->p_sid = getS_id(MESSAGE, 1);
+    p_msg->time = time(NULL);
+    return p_msg;
+}
+
+/*int sendMessageIPv4(MSG *p_msg, char *ip, unsigned int port){
+    int client_sockfd;
+    struct sockaddr_in remote_addr;
+    char buf[BUFSIZ];
+    memcpy(buf, "ZEMSG", 5);
+    memset(&remote_addr,0,sizeof(remote_addr));
+    remote_addr.sin_family=AF_INET;
+    remote_addr.sin_addr.s_addr=inet_addr(ip);
+    remote_addr.sin_port=htons(port);
+    client_sockfd=socket(PF_INET,SOCK_STREAM,0);
+    connect(client_sockfd,(struct sockaddr *)&remote_addr,sizeof(struct sockaddr));
+    send(client_sockfd,buf,strlen(buf),0);
+    unsigned long bkmsg_len = 0;
+    bkmsg_len = recv(client_sockfd, buf, BUFSIZ, 0);
+    buf[bkmsg_len] = '\0';
+    if(!strcmp(buf, "TITLE_REV_READY")){
+        memcpy(buf, p_msg->titile, strlen(p_msg->titile));
+        bkmsg_len = recv(client_sockfd, buf, BUFSIZ, 0);
+        buf[bkmsg_len] = '\0';
+        if(!strcmp(buf, "CONTENT_LEN_REV_READY")){
+            memcpy(buf, (char *)p_msg->size, sizeof(unsigned int));
+            send(client_sockfd,buf,sizeof(unsigned int),0);
+            bkmsg_len = recv(client_sockfd, buf, BUFSIZ, 0);
+            buf[bkmsg_len] = '\0';
+            if(!strcmp(buf, "CONTENT_REV_READY")){
+                memcpy(buf, p_msg->content, p_msg->size);
+                send(client_sockfd,buf,p_msg->size,0);
+                close(client_sockfd);
+                return 0;
+            }
+        }
+    }
+    close(client_sockfd);
+    return -1;
+}*/
diff --git a/communicate/communicate.h b/communicate/communicate.h
index f73ea90..cff8f99 100644
--- a/communicate/communicate.h
+++ b/communicate/communicate.h
@@ -6,6 +6,7 @@
 
 typedef struct message{
     SID *p_sid;
+    time_t time;
     char titile[16];
     unsigned long size;
     char content[0];
@@ -37,6 +38,9 @@ List *_doStandardDBlockWrite(unsigned int type, void *value, List *er_list);
 STD_DATA *listToSTD(List *);
 List *standardDataToList(STD_DATA *);
 List *_doStandardDataToList(unsigned int type, void *value, List *er_list);
+
+MSG *createMessage(char *title, void *data, unsigned long data_size);
+int sendMessageIPv4(MSG *p_msg, char *ip, unsigned int port);
 //STD_DATA *stackToSTD(Stack *);
 //STD_DATA *treeToSTD(Tree *);
 
diff --git a/type/type.h b/type/type.h
index 2cc99a5..a1dbaa1 100644
--- a/type/type.h
+++ b/type/type.h
@@ -8,6 +8,13 @@
 #include <unistd.h>
 #include <inttypes.h>
 
+/*
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+*/
+ 
 #define VOID 0
 #define INT 1
 #define DOUBLE 2
@@ -23,6 +30,7 @@
 #define UINT 12
 #define STANDARD_DATA 13
 #define DATA_FILE 14
+#define MESSAGE 15
 
 #define  DEEPC 1
 #define  DEEPB 2