g_io_channel + socket = client, and GIO not work properly..

[we axzz <myapplemycity gmail com>]

folks, i intend to create tcp client with socket, glib, and gio library,

here my code

----

#include <stdio.h>

#include <gio/gio.h> // g_timeout_add

#include <gtk/gtk.h> // gtk 

#include <netinet/in.h> //sockaddr_in

#include <sys/socket.h> // socket();

#include <arpa/inet.h> // inet_addr();

#include <string.h> // memset();

struct dada

{

    gint id_sock;

    guint id_gio_watch;

};

gboolean incoming(GIOChannel *chan, GIOCondition condition, struct dada *didi )

{

    int byte;

    int insock = g_io_channel_unix_get_fd(chan);

    #define MAXMAX 128

    char buff[128];

    printf("sock : %d\n",insock);

    byte = recv(insock,buff,MAXMAX-1,0);

    if(byte <= 0)

    {

        perror("recv");

        close(didi->id_sock);

        g_source_remove(didi->id_gio_watch);

        return FALSE;

    }

    else

    {

        buff[byte] = '\0';

        printf("coming : %s",buff);

    }

    return TRUE;

}

// gtk area

void hello(GtkWidget *widget, gpointer data)

{

    g_print("Haii world  %s\n", (char *)data);

}

gint delete_event(GtkWidget *widget, GdkEvent *event, gpointer data)

{

    g_print("a delete event has been occured properly :D\n");

    return(0);  

}

void destroy(GtkWidget * widget, gpointer data)

{

    gtk_main_quit();  

}

// end of gtk area

int main(int argc, char **argv)

{

    //gtk bussines from here

      GtkWidget *window;

    GtkWidget *button;

     gtk_init(&argc,&argv);

     window = gtk_window_new(GTK_WINDOW_TOPLEVEL);

    gtk_signal_connect(GTK_OBJECT(window), "delete_event", GTK_SIGNAL_FUNC(delete_event), NULL);

    gtk_signal_connect(GTK_OBJECT(window), "destroy", GTK_SIGNAL_FUNC(destroy), NULL);

    gtk_container_set_border_width(GTK_CONTAINER(window),10);

    button = gtk_button_new_with_label("ohayo");

    gtk_signal_connect(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(hello), (gpointer)"hha" );

    gtk_signal_connect_object(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy), GTK_OBJECT(window));

    gtk_container_add(GTK_CONTAINER(window),button);

    gtk_widget_show(button);

    gtk_widget_show(window);

    //gtk bussiness done here...

    // network code //

    struct dada didi;

    memset(&didi,0,sizeof(didi));

    struct sockaddr_in my; // set my network device info

    gint rootsock;         // handle the root socket

    //socket

    rootsock = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);

    //binding

    memset(&my,0,sizeof(my));

    my.sin_addr.s_addr = inet_addr("127.0.0.1");

    my.sin_family      = AF_INET;

    my.sin_port        = htons(1111);

    //bind(rootsock,(struct sockaddr*)&my,sizeof(my));

    printf("sock : %d\n",rootsock);

    connect(rootsock,(struct sockaddr*)&my,sizeof(my));

    didi.id_sock = rootsock;

    didi.id_gio_watch = g_io_add_watch(g_io_channel_unix_new(didi.id_sock),G_IO_IN|G_IO_OUT,(GIOFunc)incoming,&didi);

    // network code //

     gtk_main();

    return 0;

}

-------

and compiled : 

$ gcc -o konek_gioglib konek_gioglib.c `pkg-config glib-2.0 --libs --cflags gtk+-2.0`

on the other terminal i run server(with netcat) which waiting the client on port 1111 :

$ nc -v -l 1111

ultimately, i run my output binary file

$ ./konek_gioglib

sock : 6

sock : 6

the data stream is delivered but gtk likely look like a crashed, why these could be happened ?

anyone ?