Question

我将旧的（纯C）程序转换为Gtk-3，虽然完成了转换，但我必须调试一些问题。调试很困难，因为我一直在努力：

Gtk-WARNING **: Failed to fetch network locations: The specified location is not mounted

这会导致调试器在每次运行中停止（我需要-g-fatal-errors）。

当我在gtk_file_chooser_dialog的实例上调用gtk_dialog_run时，似乎发生了错误。文件名为空。

据我所知，gvfs负责这项工作。如何确定指定的位置＆＃39;错误信息是指？或者任何其他提出此错误的建议将不胜感激。

这是WARNING位置的回溯：

Thread 1 (Thread 0x7ffff7f7e280 (LWP 15613)):
#0  _g_log_abort (breakpoint=breakpoint@entry=1) at gmessages.c:549
#1  0x00007ffff5844e02 in g_log_writer_default (log_level=<optimized out>, log_level@entry=G_LOG_LEVEL_WARNING, fields=fields@entry=0x7fffffffc480, n_fields=n_fields@entry=6, user_data=user_data@entry=0x0) at gmessages.c:2613
#2  0x00007ffff58434ec in g_log_structured_array (log_level=G_LOG_LEVEL_WARNING, fields=0x7fffffffc480, n_fields=6) at gmessages.c:1933
#3  0x00007ffff5843807 in g_log_structured (log_domain=log_domain@entry=0x7ffff752aad8 "Gtk", log_level=log_level@entry=G_LOG_LEVEL_WARNING) at gmessages.c:1760
#4  0x00007ffff73e70e5 in network_enumeration_finished (source_object=<optimized out>, res=<optimized out>, user_data=0xb90b40) at gtkplacesview.c:1037
#5  0x00007ffff697adb7 in g_simple_async_result_complete (simple=0x11e9550) at gsimpleasyncresult.c:801
#6  0x00007fffed014c71 in ?? () from /usr/lib64/gio/modules/libgvfsdbus.so
#7  0x00007fffed00fd39 in ?? () from /usr/lib64/gio/modules/libgvfsdbus.so
#8  0x00007fffecdf9201 in ?? () from /usr/lib64/libgvfscommon.so.0
#9  0x00007fffefa3c4ca in ?? () from /usr/lib64/libdbus-1.so.3
#10 0x00007fffefa3f69a in dbus_connection_dispatch () from /usr/lib64/libdbus-1.so.3
#11 0x00007fffecdf7b65 in ?? () from /usr/lib64/libgvfscommon.so.0
#12 0x00007ffff583d14d in g_main_dispatch (context=0x6d46e0) at gmain.c:3234
#13 g_main_context_dispatch (context=context@entry=0x6d46e0) at gmain.c:3887
#14 0x00007ffff583d3f8 in g_main_context_iterate (context=0x6d46e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3960
#15 0x00007ffff583d712 in g_main_loop_run (loop=0x11e01e0) at gmain.c:4156
#16 0x00007ffff730d8d3 in gtk_dialog_run (dialog=0xf7f350) at gtkdialog.c:1397
#17 0x000000000040c20e in run_filedialog (title=0x441130 "Load a circuit", fn=0x441146 ".", openfile=1) at misc.c:224

Answer 1

该消息来自GLib的Gio模块。确切的位置取决于您使用的Glib的版本。

您的回溯中的

network_enumeration_finished来自gtk/gtkplacesview.c：

static void
network_enumeration_finished (GObject      *source_object,
                              GAsyncResult *res,
                              gpointer      user_data)
{
  GtkPlacesViewPrivate *priv;
  GFileEnumerator *enumerator;
  GError *error;

  error = NULL;
  enumerator = g_file_enumerate_children_finish (G_FILE (source_object), res, &error);

  if (error)
    {
      if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED) &&
          !g_error_matches (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
        g_warning ("Failed to fetch network locations: %s", error->message);

      g_clear_error (&error);     
      g_object_unref (GTK_PLACES_VIEW (user_data));
    }
  else
    {
      ...
    }
}

因此g_file_enumerate_children_finish的调用失败了。该功能位于gio/gfile.c中的GLib's source。

在g_file_get_uri上的调试器中调用source_object应该会为您提供失败位置的URI。

Gtk-WARNING **：无法获取网络位置

1 个答案: