GtkTextView 질문..

아래 소스좀 봐주시구요..
아무리 해도 않되네요.. 텍스트뷰에 있는 내용을 계속 가지고 가려면 어떻게 해야하는지..
소스는 제가 워낙 초보라서 엉망일텐데... 부탁드립니다부탁드립니다
서버는 따로 있구요.. 아랜 클라이언트 소스입니다..

      1 #include <stdio.h>
      2 #include <stdlib.h>
      3 #include <string.h>
      4 #include <unistd.h>
      5 #include <arpa/inet.h>
      6 #include <sys/types.h>
      7 #include <sys/socket.h>
      8 #include <pthread.h>
      9 #include <gtk/gtk.h>
     10 #include <locale.h>
     11
     12 #define _(text) gettext(text)
     13
     14 #define BUFSIZE 1024
     15 #define NAMESIZE 20
     16 #define PORT 9999
     17
     18 void* send_message(void* arg);
     19 void* recv_message(void* arg);
     20 void error_message(char* message);
     21
     22 void w_get_text(GtkWidget *widget, gpointer data);
     23
     24 GtkWidget* create_window1(void);
     25
     26 char s_message[BUFSIZE];
     27 char r_message[BUFSIZE];
     28 //char *s_message;
     29 //char *r_message;
     30
     31 // 윈도우 생성 관련 위젯들
     32 GtkWidget *window1;
     33 GtkWidget *vbox1;
     34 GtkWidget *scrolledwindow1;
     35 GtkWidget *textview1;
     36 GtkWidget *entry1;
     37
     38
     39 int main(int argc, char *argv[])
     40 {
     41     int sock;
     42     struct sockaddr_in serv_addr;
     43     pthread_t snd_thread, rcv_thread, gtkmain_thread;
     44     void* thread_result;
     45
     46     GtkWidget *window;
     47
     48     gtk_init(&argc, &argv);
     49
     50     window = create_window1();
     51     gtk_widget_show(window);
     52
     53
     54     sock = socket(PF_INET, SOCK_STREAM, 0);
     55     if(sock < 0)
     56         error_message("socket() error");
     57
     58     memset(&serv_addr, 0, sizeof(serv_addr));
     59     serv_addr.sin_family=AF_INET;
     60     serv_addr.sin_addr.s_addr=inet_addr("127.0.0.1");
     61     serv_addr.sin_port=htons(PORT);
     62
     63     if(connect(sock, (struct sockaddr*)&serv_addr, sizeof(serv_addr)) < 0)
     64         error_message("connect() error");
     65
     66
     67     pthread_create(&snd_thread, NULL, send_message, (void*)sock);
     68     pthread_create(&rcv_thread, NULL, recv_message, (void*)sock);
     69     pthread_create(&gtkmain_thread, NULL, (void*)gtk_main, NULL);
     70
     71     pthread_join(snd_thread, &thread_result);
     72     pthread_join(rcv_thread, &thread_result);
     73     pthread_join(gtkmain_thread, &thread_result);
     74
     75     close(sock);
     76     //free(&r_message);
     77     //free(&s_message);
     78     return 0;
     79 }
     80
     81 GtkWidget* create_window1(void)
     82 {
     83     window1 = gtk_window_new(GTK_WINDOW_TOPLEVEL);
     84     g_signal_connect(window1, "delete_event", G_CALLBACK(gtk_main_quit), NULL);
     85     gtk_window_set_title(GTK_WINDOW(window1), "client");
     86     gtk_window_set_resizable (GTK_WINDOW (window1), FALSE);
     87
     88     vbox1 = gtk_vbox_new (FALSE, 0);
     89     gtk_widget_show (vbox1);
     90     gtk_container_add (GTK_CONTAINER (window1), vbox1);
     91
     92     scrolledwindow1 = gtk_scrolled_window_new (NULL, NULL);
     93     gtk_widget_show (scrolledwindow1);
     94     gtk_box_pack_start (GTK_BOX (vbox1), scrolledwindow1, TRUE, TRUE, 0);
     95
     96     textview1 = gtk_text_view_new ();
     97     gtk_widget_show (textview1);
     98     gtk_container_add (GTK_CONTAINER (scrolledwindow1), textview1);
     99     gtk_widget_set_size_request (textview1, 200, 300);
    100     gtk_text_view_set_editable (GTK_TEXT_VIEW (textview1), FALSE);
    101     //gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (textview1), GTK_WRAP_WORD);
    102
    103     entry1 = gtk_entry_new ();
    104     g_signal_connect(entry1, "activate", G_CALLBACK(w_get_text), entry1);
    105
    106     gtk_widget_show (entry1);
    107     gtk_box_pack_start (GTK_BOX (vbox1), entry1, FALSE, FALSE, 0);
    108
    109     return window1;
    110 }
    111
    112
    113 void w_get_text(GtkWidget *widget, gpointer data)
    114 {
    115     GtkTextBuffer *buffer;
    116     GtkTextIter iter;
    117     GtkTextIter start, end;
    118     GtkTextMark mark;
    119     int str_len;
    120
    121
    122
    123     memset(&s_message, 0, sizeof(s_message));
    124     sprintf(s_message, "%s", gtk_entry_get_text(GTK_ENTRY(data)));
    125     str_len = strlen(s_message);
    126     s_message[str_len] = '\n';
    127     gtk_entry_set_text(GTK_ENTRY(data), "");
    128     buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview1));
    129     //gtk_text_buffer_get_end_iter(buffer, &end);
    130     gtk_text_buffer_get_iter_at_offset(buffer, &iter, -1);
    131     gtk_text_buffer_insert(buffer, &iter, s_message, -1);
    132     gtk_text_view_scroll_to_mark(GTK_TEXT_VIEW(textview1), gtk_text_buffer_get_insert(buffer), 0.02, FA    133     //gtk_text_buffer_set_text(buffer, s_message, -1);
    134 }
    135
    136
    137
    138 //메제지 전송 쓰레드 실행 함수
    139 void* send_message(void* arg)
    140 {
    141     int sock = (int)arg;
    142     int str_len;
    143
    144     while(1){
    145         if( (str_len=strlen(s_message)) != 0  ){
    146             write(sock, s_message, strlen(s_message));
    147             memset(&s_message, 0, sizeof(s_message));
    148         }
    149     }
    150 }
    151
    152 void* recv_message(void* arg)
    153 {
    154     GtkTextBuffer *buffer;
    155     int sock = (int)arg;
    156     int str_len;
    157     while(1){
    158         memset(&r_message, 0, sizeof(r_message));
    159         str_len = read(sock, r_message, BUFSIZE-1);
    160         if(str_len == -1)
    161             continue;
    162         buffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview1));
    163         gtk_text_buffer_set_text(buffer, r_message, strlen(r_message));
    164     }
    165 }
    166
    167 void error_message(char *message)
    168 {
    169     fputs(message, stderr);
    170     fputc('\n', stderr);
    171     exit(1);
    172 }