Convert text to utf8 more then 2-4 times freezes the application

[Magnus-swe <magnus-swe telia com>]

Hi.

Im having problems with the g_locale_to_utf8 conversion.

It works ok if i just update the textview 1-2 times but anything more
then that and the whole application freezes.

It seems to be the utf8 conversion and ive run out of ideeas so i cant
continue development, please help.


void
on_files_textview_map                  (GtkWidget       *widget,
                                        gpointer         user_data)
{
    FILE *fp;
    long fp_size;
    char *file_buffer;
    char *get_file_buffer;
    gchar *utf8;
    GtkTextBuffer *file_text_buffer;
    files_textview = lookup_widget (GTK_WIDGET (widget),
"files_textview");

    if( (fp = fopen("/var/log/xferlog", "r")) == NULL)
    {
       error_window = create_error_window ();
       gtk_widget_show (error_window);
       return;
    }
    fseek(fp, 0, SEEK_END);
    fp_size = ftell(fp);
    rewind(fp);
    file_buffer=(char *)malloc(fp_size);
    get_file_buffer=(char *)malloc(fp_size);
    while (fgets(file_buffer, fp_size, fp)!=NULL)
    {
       strcat(get_file_buffer, file_buffer);
    }
    // convert the text to utf8 more then 2-4 times freezes the 
application
    printf("\nConversion begun...\n");
    utf8 = g_locale_to_utf8(get_file_buffer, strlen(get_file_buffer),
NULL, NULL, NULL);
    printf("\nConversion ended.\n");
    
file_text_buffer=  
gtk_text_view_get_buffer(GTK_TEXT_VIEW(files_textview));

    // Set the text
    gtk_text_buffer_set_text(file_text_buffer, utf8, strlen(utf8));

    fclose(fp);
    free(file_buffer);
    free(get_file_buffer);
    g_free(utf8);
}

Sincerely: Magnus-swe