学步园

本程序的通信是基于UDP协议的传输实现

服务器端：

server.h

/***********************************<br /> * server.h *<br /> * the header files and functions *<br /> ***********************************/<br /> #include <sys/types.h><br /> #include <sys/socket.h><br /> #include <netinet/in.h><br /> #include <stdio.h><br /> #include <errno.h><br /> #include <stdlib.h><br /> #include <string.h><br /> #include <semaphore.h><br /> #include <unistd.h><br /> #include <pthread.h><br /> #include <arpa/inet.h><br /> #define bool _Bool<br /> #define true 1<br /> #define false 0<br /> #define PORT 8888<br /> #define MAXSIZE 1024<br /> void *recv_func(void *arg);<br /> int build_socket();<br /> void send_text(void);<br /> void send_func(const char *);<br /> void show_remote_text(char rcvd_mess[]);<br /> void show_err(char *err);<br /> void clean_send_text(void);<br /> void startup(void); 

se_sock.c

/************************************************<br /> * se_sock.c *<br /> * function: *<br /> * create a socket *<br /> * create a new thread,for receive function *<br /> * send message *<br /> ************************************************/<br /> #include "server.h"<br /> socklen_t len;<br /> bool from_host;//表示客户端是否已经向本服务器发送来信息<br /> int sockfd;<br /> struct sockaddr_in saddr,caddr;//saddr表示本地服务器地址信息，caddr用于保存向本服务器发送信息的主机地址信息<br /> int build_socket()<br /> {<br /> int res;<br /> pthread_t recv_thread;<br /> pthread_attr_t thread_attr;<br /> len=sizeof(caddr);<br /> /* Set status of thread */<br /> res=pthread_attr_init(&thread_attr);<br /> if(res!=0)<br /> {<br /> show_err("Setting detached attribute failed");<br /> exit(EXIT_FAILURE);<br /> }<br /> /* Create a socket */<br /> if((sockfd=socket(AF_INET,SOCK_DGRAM,0))<0)<br /> {<br /> show_err("Socket Error");<br /> exit(1);<br /> }</p> <p> bzero(&saddr,sizeof(struct sockaddr));<br /> saddr.sin_family=AF_INET;<br /> saddr.sin_addr.s_addr=htonl(INADDR_ANY);<br /> saddr.sin_port=htons(PORT);<br /> if(bind(sockfd,(struct sockaddr *)&saddr,sizeof(struct sockaddr_in))==-1)<br /> {<br /> show_err("Bind Error");<br /> exit(1);<br /> }<br /> /* Set the status of thread,don't wait for return of the subthread */<br /> res=pthread_attr_setdetachstate(&thread_attr,PTHREAD_CREATE_DETACHED);<br /> if(res!=0)<br /> {<br /> show_err("Setting detached attribute failed");<br /> exit(EXIT_FAILURE);<br /> }<br /> /* Create a sub thread,call recv_func() */<br /> res=pthread_create(&recv_thread,&thread_attr,recv_func,NULL);<br /> if(res!=0)<br /> {<br /> show_err("Thread create error");<br /> exit(EXIT_FAILURE);<br /> }<br /> /* Callback the attribute of thread */<br /> (void)pthread_attr_destroy(&thread_attr);<br /> }<br /> /* Receive function */<br /> void *recv_func(void *arg)<br /> {<br /> char recv_text[MAXSIZE];<br /> while(1)<br /> { /* To Receive message from client and get the address infomation */<br /> if(recvfrom(sockfd,recv_text,sizeof(recv_text),0,(struct sockaddr*)&caddr,&len)<0)<br /> {<br /> show_err("server recv error");<br /> exit(1);<br /> }<br /> if( from_host==false ) from_host=true;<br /> show_remote_text(recv_text);<br /> }<br /> }<br /> /* Send function,send message to client */<br /> void send_func(const char * send_text)<br /> {<br /> /* If there is no text,continue */<br /> if(strlen(send_text)==1)<br /> return;<br /> if( !from_host ) show_err("Unknown the client's address infomation/nPlease wait the client to connect you first !/n");<br /> /* Send message */<br /> if(from_host && sendto(sockfd,send_text,MAXSIZE,0,(struct sockaddr*)&caddr,len)<0)<br /> {<br /> show_err("S send error");<br /> exit(1);<br /> }<br /> }<br />  

server.c

/*************************************************<br /> * server.c *<br /> * create the server window *<br /> * send message to client *<br /> *************************************************/<br /> #include "server.h"<br /> #include<gtk/gtk.h><br /> bool socket_start;<br /> GtkTextBuffer *show_buffer,*input_buffer;<br /> void quit_win(GtkWidget *,gpointer);<br /> int main(int argc,char **argv)<br /> {<br /> GtkWidget *window;<br /> GtkWidget *show_text,*input_text;<br /> GtkWidget *send_button,*quit_button,*cls_button,*start_button;<br /> GtkWidget *hbox,*vbox;<br /> GtkWidget *scrolled1,*scrolled2;<br /> GtkWidget *space_label;<br /> gtk_init(&argc,&argv);<br /> window=gtk_window_new(GTK_WINDOW_TOPLEVEL);<br /> gtk_window_set_title(GTK_WINDOW(window),"Server");<br /> gtk_window_set_position(GTK_WINDOW(window),GTK_WIN_POS_CENTER);<br /> gtk_window_set_default_size(GTK_WINDOW(window),430,320);<br /> /* "quit" button */<br /> g_signal_connect(GTK_OBJECT(window),"destroy",GTK_SIGNAL_FUNC(quit_win),NULL);</p> <p> space_label=gtk_label_new(" ");<br /> /* set button */<br /> send_button=gtk_button_new_with_label("Send");<br /> quit_button=gtk_button_new_with_label("Close");<br /> cls_button=gtk_button_new_with_label("Clear");<br /> start_button=gtk_button_new_with_label("Startup");<br /> /* set textbox */<br /> show_text=gtk_text_view_new();<br /> input_text=gtk_text_view_new();<br /> /* get the buffer of textbox */<br /> show_buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(show_text));<br /> input_buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(input_text));<br /> /* set textbox to diseditable */<br /> gtk_text_view_set_editable(GTK_TEXT_VIEW(show_text),FALSE);<br /> /* scroll window */<br /> scrolled1=gtk_scrolled_window_new(NULL,NULL);<br /> scrolled2=gtk_scrolled_window_new(NULL,NULL);<br /> /* create a textbox */<br /> gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled1),show_text);<br /> gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled2),input_text);<br /> /* setting of window */<br /> gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled1),GTK_POLICY_AUTOMATIC,GTK_POLICY_AUTOMATIC);<br /> gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled2),GTK_POLICY_AUTOMATIC,GTK_POLICY_AUTOMATIC);<br /> hbox=gtk_hbox_new(FALSE,2);<br /> vbox=gtk_vbox_new(FALSE,2);<br /> /* click quit to call quit_win*/<br /> g_signal_connect(GTK_OBJECT(quit_button),"clicked",GTK_SIGNAL_FUNC(quit_win),NULL);<br /> /* click to clear input screen*/<br /> g_signal_connect(GTK_OBJECT(cls_button),"clicked",GTK_SIGNAL_FUNC(clean_send_text),NULL);<br /> /* click Start to build socket*/<br /> g_signal_connect(GTK_OBJECT(start_button),"clicked",GTK_SIGNAL_FUNC(startup),NULL);<br /> /* create window */<br /> gtk_box_pack_start(GTK_BOX(hbox),start_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),space_label,TRUE,TRUE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),send_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),cls_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),quit_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(vbox),scrolled1,TRUE,TRUE,2);<br /> gtk_box_pack_start(GTK_BOX(vbox),scrolled2,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(vbox),hbox,FALSE,FALSE,2);<br /> gtk_container_add(GTK_CONTAINER(window),vbox);<br /> /* click send button ,then call send_text*/<br /> gtk_signal_connect(GTK_OBJECT(send_button),"clicked",GTK_SIGNAL_FUNC(send_text),NULL);<br /> gtk_widget_show_all(window);<br /> gtk_main();<br /> return 0;<br /> }<br /> /* show the input text */<br /> void show_local_text(const gchar* text)<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(show_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"Me:/n",4);/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,text,strlen(text));/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"/n",1);/*插入文本到缓冲区*/<br /> }<br /> /* clean the input text */<br /> void clean_send_text()<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(input_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_delete(GTK_TEXT_BUFFER(input_buffer),&start,&end);/*插入到缓冲区*/<br /> }<br /> /* get the input text,and send it */<br /> void send_text()<br /> {<br /> GtkTextIter start,end;<br /> gchar *text;<br /> /* Socket creating has succeed ,so send message */<br /> text=(gchar *)malloc(MAXSIZE);<br /> if(text==NULL)<br /> {<br /> printf("Malloc error!/n");<br /> exit(1);<br /> }<br /> /* get text */<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(input_buffer),&start,&end);<br /> text=gtk_text_buffer_get_text(GTK_TEXT_BUFFER(input_buffer),&start,&end,FALSE);<br /> /* If there is no input,do nothing but return */<br /> if(strcmp(text,"")!=0)<br /> {<br /> send_func(text);<br /> clean_send_text();<br /> show_local_text(text);<br /> }<br /> else<br /> show_err("The message can not be empty .../n");<br /> free(text);<br /> }<br /> void startup(void)<br /> {<br /> if( !socket_start )<br /> {<br /> build_socket();<br /> socket_start=true;<br /> return;<br /> }<br /> show_err("The server has been started !/n");<br /> }<br /> /* show errors such as "no input","haven't create sockt" etc. */<br /> void show_err(char *err)<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(show_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,err,strlen(err));<br /> }</p> <p>/* show the received message */<br /> void show_remote_text(char rcvd_mess[])<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(show_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"Client:/n",8);/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,rcvd_mess,strlen(rcvd_mess));/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"/n",1);/*插入换行到缓冲区*/<br /> }<br /> /* quit */<br /> void quit_win(GtkWidget *window,gpointer data)<br /> {<br /> gtk_main_quit();<br /> } 

客户端

client.h

/***********************************<br /> * client.h *<br /> * the header files and functions *<br /> ***********************************/<br /> #include <stdio.h><br /> #include <string.h><br /> #include <stdlib.h><br /> #include <sys/types.h><br /> #include <sys/socket.h><br /> #include <netinet/in.h><br /> #include <arpa/inet.h><br /> #include <errno.h><br /> #include <unistd.h><br /> #include <pthread.h><br /> #define PORT 8888<br /> #define MAXSIZE 1024<br /> int build_socket(const char *);<br /> void send_text(void);<br /> void send_func(const char *);<br /> void *recv_func(void *);<br /> void show_remote_text(char rcvd_mess[]);<br /> void clean_send_text(void);<br /> void show_err(char *err); 

cl_sock.c

/************************************************<br /> * cl_sock.c *<br /> * function: *<br /> * create a socket *<br /> * create a new thread,for receive function *<br /> * send message *<br /> ************************************************/<br /> #include "client.h"<br /> int sockfd;<br /> struct sockaddr_in saddr;<br /> int build_socket(const char *serv_ip)<br /> {<br /> int res;<br /> pthread_t recv_thread;<br /> pthread_attr_t thread_attr;<br /> /* set status of thread */<br /> res=pthread_attr_init(&thread_attr);<br /> if(res!=0)<br /> {<br /> perror("Setting detached attribute failed");<br /> exit(EXIT_FAILURE);<br /> }<br /> sockfd=socket(AF_INET,SOCK_DGRAM,0); /* create a socket */<br /> if(sockfd==-1)<br /> {<br /> perror("Socket Error");<br /> exit(1);<br /> }<br /> bzero(&saddr,sizeof(saddr));<br /> saddr.sin_family=AF_INET;<br /> saddr.sin_port=htons(PORT);<br /> res=inet_pton(AF_INET,serv_ip,&saddr.sin_addr);<br /> if(res==0){ /* the serv_ip is invalid */<br /> return 1;<br /> }<br /> else if(res==-1){<br /> return -1;<br /> }<br /> /* set the stats of thread:means do not wait for the return value of subthread */<br /> res=pthread_attr_setdetachstate(&thread_attr,PTHREAD_CREATE_DETACHED);<br /> if(res!=0)<br /> {<br /> perror("Setting detached attribute failed");<br /> exit(EXIT_FAILURE);<br /> }<br /> /* Create a thread,to process the receive function. */<br /> res=pthread_create(&recv_thread,&thread_attr,&recv_func,NULL);<br /> if(res!=0)<br /> {<br /> perror("Thread create error");<br /> exit(EXIT_FAILURE);<br /> }<br /> /* callback the attribute */<br /> (void)pthread_attr_destroy(&thread_attr);<br /> return 0;<br /> }<br /> /* send function */<br /> void send_func(const char *text)<br /> {<br /> int n;<br /> socklen_t len=sizeof(saddr);<br /> n=sendto(sockfd,text,MAXSIZE,0,(const struct sockaddr*)&saddr,len);<br /> if(n<0)<br /> {<br /> perror("S send error");<br /> exit(1);<br /> }<br /> }<br /> /* a new thread,to receive message */<br /> void *recv_func(void *arg)<br /> {<br /> char rcvd_mess[MAXSIZE];<br /> while(1)<br /> {<br /> bzero(rcvd_mess,MAXSIZE);<br /> if(recvfrom(sockfd,rcvd_mess,MAXSIZE,0,NULL,NULL)<0) /*阻塞直到收到客户端发的消息*/<br /> {<br /> perror("server recv error");<br /> exit(1);<br /> }<br /> show_remote_text(rcvd_mess);<br /> }<br /> } 

client.c

/*********************************<br /> * Client.c *<br /> * Function: *<br /> * create the chat window *<br /> *********************************/<br /> #include "client.h"<br /> #include <gtk/gtk.h><br /> int issucceed=-1;<br /> GtkTextBuffer *show_buffer,*input_buffer;<br /> void get_ip(GtkWidget *,gpointer);<br /> void quit_win(GtkWidget *,gpointer);<br /> int main(int argc,char **argv)<br /> {<br /> GtkWidget *window;<br /> GtkWidget *show_text,*input_text,*ip_text;<br /> GtkWidget *ip_label,*space_label;<br /> GtkWidget *link_button,*send_button,*quit_button,*cls_button;<br /> GtkWidget *hbox,*vbox;<br /> GtkWidget *scrolled1,*scrolled2;<br /> gtk_init(&argc,&argv);<br /> window=gtk_window_new(GTK_WINDOW_TOPLEVEL);<br /> gtk_window_set_title(GTK_WINDOW(window),"Client");<br /> gtk_window_set_position(GTK_WINDOW(window),GTK_WIN_POS_CENTER);<br /> gtk_window_set_default_size(GTK_WINDOW(window),430,320);<br /> /* "quit" button */<br /> g_signal_connect(GTK_OBJECT(window),"destroy",GTK_SIGNAL_FUNC(quit_win),NULL);<br /> ip_label=gtk_label_new("IP:");<br /> space_label=gtk_label_new(" ");<br /> /* set button */<br /> link_button=gtk_button_new_with_label("Connect");<br /> send_button=gtk_button_new_with_label("Send");<br /> quit_button=gtk_button_new_with_label("Close");<br /> cls_button=gtk_button_new_with_label("Clear");</p> <p> /* set textbox */<br /> ip_text=gtk_entry_new();<br /> show_text=gtk_text_view_new();<br /> input_text=gtk_text_view_new();<br /> /* set length of IP box */<br /> gtk_entry_set_max_length(GTK_ENTRY(ip_text),15);<br /> /* get the buffer of textbox */<br /> show_buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(show_text));<br /> input_buffer=gtk_text_view_get_buffer(GTK_TEXT_VIEW(input_text));<br /> /* set textbox to diseditable */<br /> gtk_text_view_set_editable(GTK_TEXT_VIEW(show_text),FALSE);<br /> /* scroll window */<br /> scrolled1=gtk_scrolled_window_new(NULL,NULL);<br /> scrolled2=gtk_scrolled_window_new(NULL,NULL);<br /> /* create a textbox */<br /> gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled1),show_text);<br /> gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scrolled2),input_text);<br /> /* setting of window */<br /> gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled1),GTK_POLICY_AUTOMATIC,GTK_POLICY_AUTOMATIC);<br /> gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled2),GTK_POLICY_AUTOMATIC,GTK_POLICY_AUTOMATIC);<br /> hbox=gtk_hbox_new(FALSE,2);<br /> vbox=gtk_vbox_new(FALSE,2);<br /> /* click quit to call quit_win*/<br /> g_signal_connect(GTK_OBJECT(quit_button),"clicked",GTK_SIGNAL_FUNC(quit_win),NULL);<br /> /* click "connect" to call get_ip */<br /> g_signal_connect(GTK_OBJECT(link_button),"clicked",GTK_SIGNAL_FUNC(get_ip),ip_text);<br /> /* click to clear input screen*/<br /> g_signal_connect(GTK_OBJECT(cls_button),"clicked",GTK_SIGNAL_FUNC(clean_send_text),NULL);<br /> /* create window */<br /> gtk_box_pack_start(GTK_BOX(hbox),ip_label,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),ip_text,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),link_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),space_label,TRUE,TRUE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),send_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),cls_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(hbox),quit_button,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(vbox),scrolled1,TRUE,TRUE,2);<br /> gtk_box_pack_start(GTK_BOX(vbox),scrolled2,FALSE,FALSE,2);<br /> gtk_box_pack_start(GTK_BOX(vbox),hbox,FALSE,FALSE,2);<br /> gtk_container_add(GTK_CONTAINER(window),vbox);<br /> /* click send button ,then call send_text*/<br /> gtk_signal_connect(GTK_OBJECT(send_button),"clicked",GTK_SIGNAL_FUNC(send_text),NULL);<br /> gtk_widget_show_all(window);<br /> gtk_main();<br /> return 0;<br /> }<br /> /* show the input text */<br /> void show_local_text(const gchar* text)<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(show_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"Me:/n",4);/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,text,strlen(text));/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"/n",1);/*插入文本到缓冲区*/<br /> }<br /> /* clean the input text */<br /> void clean_send_text()<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(input_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_delete(GTK_TEXT_BUFFER(input_buffer),&start,&end);/*插入到缓冲区*/<br /> }<br /> /* get the input text,and send it */<br /> void send_text()<br /> {<br /> GtkTextIter start,end;<br /> gchar *text;<br /> if(issucceed==-1){ /* Haven't create a socket */<br /> show_err("Not connected.../n");<br /> }<br /> else<br /> { /* Socket creating has succeed ,so send message */<br /> text=(gchar *)malloc(MAXSIZE);<br /> if(text==NULL)<br /> {<br /> printf("Malloc error!/n");<br /> exit(1);<br /> }<br /> /* get text */<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(input_buffer),&start,&end);<br /> text=gtk_text_buffer_get_text(GTK_TEXT_BUFFER(input_buffer),&start,&end,FALSE);<br /> /* If there is no input,do nothing but return */<br /> if(strcmp(text,"")!=0)<br /> {<br /> send_func(text);<br /> clean_send_text();<br /> show_local_text(text);<br /> }<br /> else<br /> show_err("The message can not be empty.../n");<br /> free(text);<br /> }<br /> }<br /> /* show errors such as "no input","haven't create sockt" etc. */<br /> void show_err(char *err)<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(show_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,err,strlen(err));<br /> }<br /> /* get IP address and create socket */<br /> void get_ip(GtkWidget *button,gpointer ip_text)<br /> {<br /> gchar *serv_ip;<br /> int res;<br /> serv_ip=(gchar *)gtk_entry_get_text(GTK_ENTRY((GtkWidget *)ip_text));<br /> res=build_socket(serv_ip);<br /> if(res==1)<br /> show_err("IP Address is Invalid.../n");<br /> else if(res==-1)<br /> show_err("Connect Failure... /n");/*插入文本到缓冲区*/<br /> else{<br /> show_err("Connect Successful... /n");<br /> issucceed=0;<br /> }<br /> }<br /> /* show the received message */<br /> void show_remote_text(char rcvd_mess[])<br /> {<br /> GtkTextIter start,end;<br /> gtk_text_buffer_get_bounds(GTK_TEXT_BUFFER(show_buffer),&start,&end);/*获得缓冲区开始和结束位置的Iter*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"Server:/n",8);/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,rcvd_mess,strlen(rcvd_mess));/*插入文本到缓冲区*/<br /> gtk_text_buffer_insert(GTK_TEXT_BUFFER(show_buffer),&end,"/n",1);/*插入换行到缓冲区*/<br /> }<br /> /* quit */<br /> void quit_win(GtkWidget *window,gpointer data)<br /> {<br /> gtk_main_quit();<br /> } 

makefile代码

OBJ=client.o cl_sock.o

OBJ1=server.o se_sock.o

server:server.o se_sock.o server.h

gcc -Wall $(OBJ1) -o server `pkg-config gtk+-2.0 --libs` -l pthread

server.o:server.c server.h

gcc -Wall -c $< `pkg-config gtk+-2.0 --cflags`

server_sock.o:se_sock.c server.h

gcc -Wall -c $<

client:client.o cl_sock.o client.h

gcc -Wall $(OBJ) -o client `pkg-config gtk+-2.0 --libs` -l pthread

client.o:client.c client.h

gcc -Wall -c $< `pkg-config gtk+-2.0 --cflags`

client_sock.o:cl_sock.c client.h

gcc -Wall -c $<

clean:

rm *.o