e/bluez4: List Adapters

Patch by: Lucas Joia <lucasjoia@profusion.mobi>



SVN revision: 82199

src/modules/bluez4/agent.c

@@ -177,7 +177,7 @@ _agent_display_passkey(const EDBus_Service_Interface *iface, const EDBus_Message
 
    if(!edbus_message_arguments_get(message, "ouq", &device, &passkey, &entered))
      return edbus_message_error_new(message, BLUEZ_ERROR_FAILED, GET_ERROR_MSG);
-   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_path_cmp, device);
+   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_dev_path_cmp, device);
    snprintf(buf, sizeof(buf), "%d keys were typed on %s. Passkey is %06d",
             entered, dev->name, passkey);
    _display_msg("Display Passkey", buf);
@@ -192,7 +192,7 @@ _agent_display_pin_code(const EDBus_Service_Interface *iface, const EDBus_Messag
 
    if(!edbus_message_arguments_get(message, "os", &device, &pincode))
      return edbus_message_error_new(message, BLUEZ_ERROR_FAILED, GET_ERROR_MSG);
-   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_path_cmp, device);
+   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_dev_path_cmp, device);
    snprintf(buf, sizeof(buf), "Pincode for %s is %s", dev->name, pincode);
    _display_msg("Display Pincode", buf);
    return edbus_message_method_return_new(message);
@@ -207,7 +207,7 @@ _agent_request_confirmation(const EDBus_Service_Interface *iface, const EDBus_Me
 
    if(!edbus_message_arguments_get(message, "ou", &device, &passkey))
      return edbus_message_error_new(message, BLUEZ_ERROR_FAILED, GET_ERROR_MSG);
-   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_path_cmp, device);
+   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_dev_path_cmp, device);
    snprintf(buf, sizeof(buf), "%06d is the passkey presented in %s?",
             passkey, dev->name);
    edbus_message_ref((EDBus_Message *)message);
@@ -223,7 +223,7 @@ _agent_authorize(const EDBus_Service_Interface *iface, const EDBus_Message *mess
 
    if(!edbus_message_arguments_get(message, "os", &device, &uuid))
      return edbus_message_error_new(message, BLUEZ_ERROR_FAILED, GET_ERROR_MSG);
-   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_path_cmp, device);
+   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_dev_path_cmp, device);
    snprintf(buf, sizeof(buf), "Grant permission for %s to connect?",
             dev->name);
    edbus_message_ref((EDBus_Message *)message);

src/modules/bluez4/e_mod_main.c

@@ -87,6 +87,53 @@ _ebluez4_cb_search(void *data, E_Menu *m, E_Menu_Item *mi)
    DBG("Starting discovery...");
 }
 
+static void
+_ebluez4_adap_list_dialog_del(Instance *inst)
+{
+   if (!inst->adap_dialog) return;
+   e_object_del(E_OBJECT(inst->adap_dialog));
+   inst->adap_dialog = NULL;
+   inst->adap_list = NULL;
+}
+
+static void
+_ebluez4_cb_adap_list_dialog_del(E_Win *win)
+{
+   E_Dialog *dialog = win->data;
+   _ebluez4_adap_list_dialog_del(dialog->data);
+}
+
+static void
+_ebluez4_cb_adap_list(void *data, E_Menu *m, E_Menu_Item *mi)
+{
+   Instance *inst = data;
+   E_Container *con;
+   E_Dialog *dialog;
+   Evas *evas;
+
+   if (inst->adap_dialog)
+      _ebluez4_adap_list_dialog_del(inst);
+
+   con = e_container_current_get(e_manager_current_get());
+
+   dialog = e_dialog_new(con, "Adapters Dialog", "adapters");
+   e_dialog_title_set(dialog, "Adapters Available");
+   e_dialog_resizable_set(dialog, EINA_TRUE);
+   e_win_delete_callback_set(dialog->win, _ebluez4_cb_adap_list_dialog_del);
+
+   evas = e_win_evas_get(dialog->win);
+
+   inst->adap_list = e_widget_ilist_add(evas, 0, 0, NULL);
+
+   e_dialog_content_set(dialog, inst->adap_list, 250, 220);
+   ebluez4_update_instances(ctxt->adapters);
+
+   e_dialog_show(dialog);
+
+   dialog->data = inst;
+   inst->adap_dialog = dialog;
+}
+
 static void
 _ebluez4_cb_connect(void *data, E_Menu *m, E_Menu_Item *mi)
 {
@@ -194,6 +241,7 @@ _ebluez4_menu_new(Instance *inst)
 
    mi = e_menu_item_new(m);
    e_menu_item_label_set(mi, "Adapter Settings");
+   e_menu_item_callback_set(mi, _ebluez4_cb_adap_list, inst);
 
    zone = e_util_zone_current_get(e_manager_current_get());
    ecore_x_pointer_xy_get(zone->container->win, &x, &y);
@@ -269,6 +317,7 @@ _gc_shutdown(E_Gadcon_Client *gcc)
 
    e_menu_deactivate(inst->menu);
    _ebluez4_search_dialog_del(inst);
+   _ebluez4_adap_list_dialog_del(inst);
 
    E_FREE(inst);
 }
@@ -347,15 +396,25 @@ void
 ebluez4_update_inst(Evas_Object *dest, Eina_List *src, Instance *inst)
 {
    Device *dev;
+   Adapter *adap;
    Eina_List *iter;
 
    e_widget_ilist_freeze(dest);
    e_widget_ilist_clear(dest);
 
-   EINA_LIST_FOREACH(src, iter, dev)
+   if (src == ctxt->found_devices)
-     if (src == ctxt->found_devices && !dev->paired)
+     {
-       e_widget_ilist_append(dest, NULL, dev->name, _ebluez4_cb_pair, inst,
+        EINA_LIST_FOREACH(src, iter, dev)
-                             dev->addr);
+          if (!dev->paired)
+            e_widget_ilist_append(dest, NULL, dev->name, _ebluez4_cb_pair, inst,
+                                  dev->addr);
+     }
+   else if (src == ctxt->adapters)
+     {
+        EINA_LIST_FOREACH(src, iter, adap)
+          e_widget_ilist_append(dest, NULL, adap->name, NULL, NULL, //FIXME: use correct cb for selecting adapter
+                                edbus_object_path_get(adap->obj));
+     }
 
    e_widget_ilist_thaw(dest);
    e_widget_ilist_go(dest);
@@ -367,12 +426,11 @@ ebluez4_update_instances(Eina_List *src)
    Eina_List *iter;
    Instance *inst;
 
-   if (src == ctxt->found_devices)
+   EINA_LIST_FOREACH(instances, iter, inst)
-     {
+     if (src == ctxt->found_devices && inst->found_list)
-        EINA_LIST_FOREACH(instances, iter, inst)
+       ebluez4_update_inst(inst->found_list, src, inst);
-          if (inst->found_list)
+     else if (src == ctxt->adapters && inst->adap_list)
-            ebluez4_update_inst(inst->found_list, src, inst);
+       ebluez4_update_inst(inst->adap_list, src, inst);
-     }
 }
 
 void
@@ -390,6 +448,7 @@ ebluez4_update_all_gadgets_visibility()
           _ebluez4_set_mod_icon(inst->o_bluez4);
           e_menu_deactivate(inst->menu);
           _ebluez4_search_dialog_del(inst);
+          _ebluez4_adap_list_dialog_del(inst);
        }
 }
 

src/modules/bluez4/e_mod_main.h

@@ -9,6 +9,8 @@ struct _Instance
    Evas_Object *o_bluez4;
    Evas_Object *found_list;
    E_Dialog *search_dialog;
+   Evas_Object *adap_list;
+   E_Dialog *adap_dialog;
 };
 
 EAPI extern E_Module_Api e_modapi;

src/modules/bluez4/ebluez4.c

@@ -18,7 +18,7 @@ Service services[] = {
 };
 
 static int
-_addr_cmp(const void *d1, const void *d2)
+_dev_addr_cmp(const void *d1, const void *d2)
 {
    const Device *dev = d1;
    const char *addr = d2;
@@ -26,6 +26,15 @@ _addr_cmp(const void *d1, const void *d2)
    return strcmp(dev->addr, addr);
 }
 
+int
+_adap_path_cmp(const void *d1, const void *d2)
+{
+   const Adapter *adap = d1;
+   const char *path = d2;
+
+   return strcmp(edbus_object_path_get(adap->obj), path);
+}
+
 static void
 _free_dev(Device *dev)
 {
@@ -38,6 +47,15 @@ _free_dev(Device *dev)
    free(dev);
 }
 
+static void
+_free_adap(Adapter *adap)
+{
+   edbus_object_unref(adap->obj);
+   eina_stringshare_del(adap->name);
+   adap->name = NULL;
+   free(adap);
+}
+
 static void
 _free_dev_list(Eina_List **list)
 {
@@ -49,20 +67,13 @@ _free_dev_list(Eina_List **list)
 }
 
 static void
-_unset_adapter()
+_free_adap_list()
 {
-   if (!ctxt->adap_obj)
+   Adapter *adap;
-     return;
 
-   DBG("Remove adapter %s", edbus_object_path_get(ctxt->adap_obj));
+   EINA_LIST_FREE(ctxt->adapters, adap)
-
+     _free_adap(adap);
-   _free_dev_list(&ctxt->devices);
+   ctxt->adapters = NULL;
-   ctxt->devices = NULL;
-   _free_dev_list(&ctxt->found_devices);
-   ctxt->found_devices = NULL;
-   edbus_object_unref(ctxt->adap_obj);
-   ctxt->adap_obj = NULL;
-   ebluez4_update_all_gadgets_visibility();
 }
 
 static Profile
@@ -145,15 +156,15 @@ _retrieve_properties(EDBus_Message_Iter *dict, const char **addr,
 }
 
 static void
-_on_prop_changed(void *context, const EDBus_Message *msg)
+_on_dev_property_changed(void *context, const EDBus_Message *msg)
 {
    const char *key, *name;
    char err_msg[4096];
    Eina_Bool paired, connected;
    EDBus_Message_Iter *variant, *uuids;
    Device *dev = context;
-   Device *found_dev = eina_list_search_unsorted(ctxt->found_devices, _addr_cmp,
+   Device *found_dev = eina_list_search_unsorted(ctxt->found_devices,
-                                                 dev->addr);
+                                                 _dev_addr_cmp, dev->addr);
 
    if (!edbus_message_arguments_get(msg, "sv", &key, &variant))
      {
@@ -306,7 +317,7 @@ _set_dev(const char *path)
    edbus_proxy_call(dev->proxy.dev, "GetProperties", _on_dev_properties, dev,
                     -1, "");
    edbus_proxy_signal_handler_add(dev->proxy.dev, "PropertyChanged",
-                                  _on_prop_changed, dev);
+                                  _on_dev_property_changed, dev);
    ctxt->devices = eina_list_append(ctxt->devices, dev);
 }
 
@@ -319,8 +330,9 @@ _on_removed(void *context, const EDBus_Message *msg)
    if (!edbus_message_arguments_get(msg, "o", &path))
      return;
 
-   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_path_cmp, path);
+   dev = eina_list_search_unsorted(ctxt->devices, ebluez4_dev_path_cmp, path);
-   fdev = eina_list_search_unsorted(ctxt->found_devices, _addr_cmp, dev->addr);
+   fdev = eina_list_search_unsorted(ctxt->found_devices, _dev_addr_cmp,
+                                    dev->addr);
    _unset_dev(dev, ctxt->devices);
    _unset_dev(fdev, ctxt->found_devices);
 }
@@ -347,7 +359,7 @@ _on_device_found(void *context, const EDBus_Message *msg)
    if (!edbus_message_arguments_get(msg, "sa{sv}", &addr, &dict))
      return;
 
-   if(eina_list_search_unsorted(ctxt->found_devices, _addr_cmp, addr))
+   if(eina_list_search_unsorted(ctxt->found_devices, _dev_addr_cmp, addr))
      return;
 
    if (!edbus_message_arguments_get(msg, "a{sv}", &dict))
@@ -365,7 +377,7 @@ _on_device_found(void *context, const EDBus_Message *msg)
 }
 
 static void
-_on_list(void *data, const EDBus_Message *msg, EDBus_Pending *pending)
+_on_list_devices(void *data, const EDBus_Message *msg, EDBus_Pending *pending)
 {
    EDBus_Message_Iter *array;
    const char *path;
@@ -383,8 +395,169 @@ _on_list(void *data, const EDBus_Message *msg, EDBus_Pending *pending)
 }
 
 static void
-_set_adapter(const EDBus_Message *msg)
+_on_adap_property_changed(void *context, const EDBus_Message *msg)
 {
+   const char *key, *name;
+   char err_msg[1096];
+   Eina_Bool visible, pairable, powered;
+   EDBus_Message_Iter *variant;
+   Adapter *adap = context;
+
+   if (!edbus_message_arguments_get(msg, "sv", &key, &variant))
+     {
+        snprintf(err_msg, sizeof(err_msg),
+                 "Property of %s changed, but could not be read", adap->name);
+        ERR("%s", err_msg);
+        ebluez4_show_error("Bluez Error", err_msg);
+        return;
+     }
+
+   if (!strcmp(key, "Name"))
+     {
+        if(!edbus_message_iter_arguments_get(variant, "s", &name))
+          return;
+        DBG("'%s' property of %s changed to %s", key, adap->name, name);
+        eina_stringshare_del(adap->name);
+        adap->name = eina_stringshare_add(name);
+     }
+   else if (!strcmp(key, "Discoverable"))
+     {
+        if(!edbus_message_iter_arguments_get(variant, "b", &visible))
+          return;
+        DBG("'%s' property of %s changed to %d", key, adap->name, visible);
+        adap->visible = visible;
+     }
+   else if (!strcmp(key, "Pairable"))
+     {
+        if(!edbus_message_iter_arguments_get(variant, "b", &pairable))
+          return;
+        DBG("'%s' property of %s changed to %d", key, adap->name, pairable);
+        adap->pairable = pairable;
+     }
+   else if (!strcmp(key, "Powered"))
+     {
+        if(!edbus_message_iter_arguments_get(variant, "b", &powered))
+          return;
+        DBG("'%s' property of %s changed to %d", key, adap->name, powered);
+        adap->powered = powered;
+     }
+
+   ebluez4_update_instances(ctxt->adapters);
+}
+
+static void
+_on_adap_properties(void *data, const EDBus_Message *msg, EDBus_Pending *pending)
+{
+   EDBus_Message_Iter *dict, *entry, *variant;
+   const char *name, *key;
+   Eina_Bool visible, pairable, powered;
+   Adapter *adap = data;
+
+   if (!edbus_message_arguments_get(msg, "a{sv}", &dict))
+     return;
+
+   while (edbus_message_iter_get_and_next(dict, 'e', &entry))
+     {
+        if(!edbus_message_iter_arguments_get(entry, "sv", &key, &variant))
+           return;
+
+        else if (!strcmp(key, "Name"))
+          {
+             if(!edbus_message_iter_arguments_get(variant, "s", &name))
+               return;
+          }
+        else if (!strcmp(key, "Discoverable"))
+          {
+             if(!edbus_message_iter_arguments_get(variant, "b", &visible))
+               return;
+          }
+        else if (!strcmp(key, "Pairable"))
+          {
+             if(!edbus_message_iter_arguments_get(variant, "b", &pairable))
+               return;
+          }
+        else if (!strcmp(key, "Powered"))
+          {
+             if(!edbus_message_iter_arguments_get(variant, "b", &powered))
+               return;
+          }
+     }
+
+   adap->name = eina_stringshare_add(name);
+   adap->visible = visible;
+   adap->pairable = pairable;
+   adap->powered = powered;
+}
+
+static void
+_unset_default_adapter()
+{
+   DBG("Remove default adapter %s", edbus_object_path_get(ctxt->adap_obj));
+   _free_dev_list(&ctxt->devices);
+   ctxt->devices = NULL;
+   _free_dev_list(&ctxt->found_devices);
+   ctxt->found_devices = NULL;
+   ctxt->adap_obj = NULL;
+   ebluez4_update_all_gadgets_visibility();
+}
+
+static void
+_unset_adapter(const char *path)
+{
+   Adapter *adap = eina_list_search_unsorted(ctxt->adapters, _adap_path_cmp,
+                                             path);
+
+   if (!adap)
+     return;
+
+   if (!strcmp(edbus_object_path_get(ctxt->adap_obj), path))
+     _unset_default_adapter();
+   ctxt->adapters = eina_list_remove(ctxt->adapters, adap);
+   _free_adap(adap);
+   ebluez4_update_instances(ctxt->adapters);
+}
+
+static void
+_set_adapter(const char *path)
+{
+   Adapter *adap = calloc(1, sizeof(Adapter));
+
+   adap->obj = edbus_object_get(ctxt->conn, BLUEZ_BUS, path);
+   if (ctxt->adap_obj && adap->obj == ctxt->adap_obj)
+     adap->is_default = EINA_TRUE;
+   else
+     adap->is_default = EINA_FALSE;
+   adap->proxy = edbus_proxy_get(adap->obj, ADAPTER_INTERFACE);
+   edbus_proxy_call(adap->proxy, "GetProperties", _on_adap_properties, adap, -1,
+                    "");
+   edbus_proxy_signal_handler_add(adap->proxy, "PropertyChanged",
+                                  _on_adap_property_changed, adap);
+   ctxt->adapters = eina_list_append(ctxt->adapters, adap);
+   ebluez4_update_instances(ctxt->adapters);
+}
+
+static void
+_on_list_adapters(void *data, const EDBus_Message *msg, EDBus_Pending *pending)
+{
+   EDBus_Message_Iter *array;
+   const char *path;
+   const char *err_msg = "Error reading list of adapters";
+
+   if (!edbus_message_arguments_get(msg, "ao", &array))
+     {
+        ERR("%s", err_msg);
+        ebluez4_show_error("Bluez Error", err_msg);
+        return;
+     }
+
+   while (edbus_message_iter_get_and_next(array, 'o', &path))
+     _set_adapter(path);
+}
+
+static void
+_set_default_adapter(const EDBus_Message *msg)
+{
+   Adapter *adap;
    const char *adap_path;
    const char *err_msg = "Error reading path of Default Adapter";
 
@@ -395,10 +568,14 @@ _set_adapter(const EDBus_Message *msg)
         return;
      }
 
-   DBG("Setting adapter to %s", adap_path);
+   DBG("Setting default adapter to %s", adap_path);
 
    if (ctxt->adap_obj)
-     _unset_adapter();
+     _unset_default_adapter();
+
+   adap = eina_list_search_unsorted(ctxt->adapters, _adap_path_cmp, adap_path);
+   if (adap)
+     adap->is_default = EINA_TRUE;
 
    ctxt->adap_obj = edbus_object_get(ctxt->conn, BLUEZ_BUS, adap_path);
    ctxt->adap_proxy = edbus_proxy_get(ctxt->adap_obj, ADAPTER_INTERFACE);
@@ -409,7 +586,8 @@ _set_adapter(const EDBus_Message *msg)
                                   _on_created, NULL);
    edbus_proxy_signal_handler_add(ctxt->adap_proxy, "DeviceRemoved",
                                   _on_removed, NULL);
-   edbus_proxy_call(ctxt->adap_proxy, "ListDevices", _on_list, NULL, -1, "");
+   edbus_proxy_call(ctxt->adap_proxy, "ListDevices", _on_list_devices, NULL, -1,
+                    "");
    edbus_proxy_call(ctxt->adap_proxy, "RegisterAgent", NULL, NULL, -1, "os",
                     REMOTE_AGENT_PATH, "KeyboardDisplay");
    ebluez4_update_all_gadgets_visibility();
@@ -428,13 +606,13 @@ _default_adapter_get(void *data, const EDBus_Message *msg, EDBus_Pending *pendin
      return;
 
    if (!ctxt->adap_obj)
-     _set_adapter(msg);
+     _set_default_adapter(msg);
 }
 
 static void
-_on_adapter_changed(void *context, const EDBus_Message *msg)
+_on_default_adapter_changed(void *context, const EDBus_Message *msg)
 {
-   _set_adapter(msg);
+   _set_default_adapter(msg);
 }
 
 static void
@@ -450,20 +628,42 @@ _on_adapter_removed(void *context, const EDBus_Message *msg)
         return;
      }
 
-   if (!strcmp(edbus_object_path_get(ctxt->adap_obj), adap_path))
+   _unset_adapter(adap_path);
-     _unset_adapter();
+}
+
+static void
+_on_adapter_added(void *context, const EDBus_Message *msg)
+{
+   const char *adap_path;
+   const char *err_msg = "Error reading path of Added Adapter";
+
+   if (!edbus_message_arguments_get(msg, "o", &adap_path))
+     {
+        ERR("%s", err_msg);
+        ebluez4_show_error("Bluez Error", err_msg);
+        return;
+     }
+
+   _set_adapter(adap_path);
 }
 
 static void
 _bluez_monitor(void *data, const char *bus, const char *old_id, const char *new_id)
 {
    if (!strcmp(old_id,"") && strcmp(new_id,""))
-     // Bluez up
+     {
-     edbus_proxy_call(ctxt->man_proxy, "DefaultAdapter", _default_adapter_get,
+        // Bluez up
-                      NULL, -1, "");
+        edbus_proxy_call(ctxt->man_proxy, "DefaultAdapter",
+                         _default_adapter_get, NULL, -1, "");
+        edbus_proxy_call(ctxt->man_proxy, "ListAdapters",
+                         _on_list_adapters, NULL, -1, "");
+     }
    else if (strcmp(old_id,"") && !strcmp(new_id,""))
-     // Bluez down
+     {
-     _unset_adapter();
+        // Bluez down
+        _unset_default_adapter();
+        _free_adap_list();
+     }
 }
 
 /* Public Functions */
@@ -482,10 +682,12 @@ ebluez4_edbus_init()
 
    ebluez4_register_agent_interfaces(ctxt->conn);
 
-   edbus_proxy_signal_handler_add(ctxt->man_proxy,
+   edbus_proxy_signal_handler_add(ctxt->man_proxy, "DefaultAdapterChanged",
-                            "DefaultAdapterChanged", _on_adapter_changed, NULL);
+                                  _on_default_adapter_changed, NULL);
    edbus_proxy_signal_handler_add(ctxt->man_proxy, "AdapterRemoved",
                                   _on_adapter_removed, NULL);
+   edbus_proxy_signal_handler_add(ctxt->man_proxy, "AdapterAdded",
+                                  _on_adapter_added, NULL);
 
    edbus_name_owner_changed_callback_add(ctxt->conn, BLUEZ_BUS, _bluez_monitor,
                                          NULL, EINA_TRUE);
@@ -496,6 +698,7 @@ ebluez4_edbus_shutdown()
 {
    _free_dev_list(&ctxt->devices);
    _free_dev_list(&ctxt->found_devices);
+   _free_adap_list();
    edbus_connection_unref(ctxt->conn);
    free(ctxt);
 
@@ -551,7 +754,7 @@ ebluez4_remove_device(EDBus_Object *obj)
 }
 
 int
-ebluez4_path_cmp(const void *d1, const void *d2)
+ebluez4_dev_path_cmp(const void *d1, const void *d2)
 {
    const Device *dev = d1;
    const char *path = d2;

src/modules/bluez4/ebluez4.h

@@ -43,15 +43,26 @@ typedef struct _Device
      } proxy;
 } Device;
 
+typedef struct _Adapter
+{
+   const char *name;
+   Eina_Bool visible;
+   Eina_Bool pairable;
+   Eina_Bool powered;
+   Eina_Bool is_default;
+   EDBus_Object *obj;
+   EDBus_Proxy *proxy;
+} Adapter;
+
 typedef struct _Context
 {
    EDBus_Connection *conn;
-   const char *default_adap_path;
    EDBus_Object *adap_obj;
    EDBus_Proxy *man_proxy;
    EDBus_Proxy *adap_proxy;
    Eina_List *devices;
    Eina_List *found_devices;
+   Eina_List *adapters;
 } Context;
 
 Context *ctxt;
@@ -64,4 +75,4 @@ void ebluez4_connect_to_device(Device *dev);
 void ebluez4_disconnect_device(Device *dev);
 void ebluez4_pair_with_device(const char *addr, void (*cb)(void *, Eina_Bool, const char *), void *data);
 void ebluez4_remove_device(EDBus_Object *obj);
-int ebluez4_path_cmp(const void *d1, const void *d2);
+int ebluez4_dev_path_cmp(const void *d1, const void *d2);