gdbus服务端客户端使用详解 - 服务端

本文介绍如何在linux系统使用gdbus进行进程，分为服务端和客户端。总体上是比较简单的，奈何gdbus的帮助文档实在太简单，网络上的资料也比较少。希望本文对需要使用gdbus的开发人员有帮助。

第一步，是编写interface和相应函数的xml文件（D-Bus introspection XML file），供之后借助gdbus-codegen来创建服务端和客户端相应的代码。比如：

<?xml version="1.0" encoding="UTF-8" ?><node name="/com/alibaba/Building"><interface name="com.alibaba.Building.Test"><method name="SetVersion"><arg name="version" type="s" direction="in" /></method><signal name="TestStatus"><arg name="status" type="i" /></signal></interface></node>

一，服务端。

有了xml文件，就可以创建服务端需要的代码文件，使用如下命令：

./gdbus-codegen --generate-c-code=Building Building.xml

在当前目录会出现两个文件Building.[hc]，这里也贴出它们的代码。

Building.h

/* * Generated by gdbus-codegen 2.30.3. DO NOT EDIT. * * The license of this code is the same as for the source it was derived from. */#ifndef __BUILDING_H__#define __BUILDING_H__#include <gio/gio.h>G_BEGIN_DECLS/* ------------------------------------------------------------------------ *//* Declarations for com.alibaba.Building.Test */#define TYPE_COM_ALIBABA_BUILDING_TEST (com_alibaba_building_test_get_type ())#define COM_ALIBABA_BUILDING_TEST(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), TYPE_COM_ALIBABA_BUILDING_TEST, ComAlibabaBuildingTest))#define IS_COM_ALIBABA_BUILDING_TEST(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), TYPE_COM_ALIBABA_BUILDING_TEST))#define COM_ALIBABA_BUILDING_TEST_GET_IFACE(o) (G_TYPE_INSTANCE_GET_INTERFACE ((o), TYPE_COM_ALIBABA_BUILDING_TEST, ComAlibabaBuildingTestIface))struct _ComAlibabaBuildingTest;typedef struct _ComAlibabaBuildingTest ComAlibabaBuildingTest;typedef struct _ComAlibabaBuildingTestIface ComAlibabaBuildingTestIface;struct _ComAlibabaBuildingTestIface{  GTypeInterface parent_iface;  gboolean (*handle_set_version) (    ComAlibabaBuildingTest *object,    GDBusMethodInvocation *invocation,    const gchar *arg_version);  void (*test_status) (    ComAlibabaBuildingTest *object,    gint arg_status);};GType com_alibaba_building_test_get_type (void) G_GNUC_CONST;GDBusInterfaceInfo *com_alibaba_building_test_interface_info (void);guint com_alibaba_building_test_override_properties (GObjectClass *klass, guint property_id_begin);/* D-Bus method call completion functions: */void com_alibaba_building_test_complete_set_version (    ComAlibabaBuildingTest *object,    GDBusMethodInvocation *invocation);/* D-Bus signal emissions functions: */void com_alibaba_building_test_emit_test_status (    ComAlibabaBuildingTest *object,    gint arg_status);/* D-Bus method calls: */void com_alibaba_building_test_call_set_version (    ComAlibabaBuildingTest *proxy,    const gchar *arg_version,    GCancellable *cancellable,    GAsyncReadyCallback callback,    gpointer user_data);gboolean com_alibaba_building_test_call_set_version_finish (    ComAlibabaBuildingTest *proxy,    GAsyncResult *res,    GError **error);gboolean com_alibaba_building_test_call_set_version_sync (    ComAlibabaBuildingTest *proxy,    const gchar *arg_version,    GCancellable *cancellable,    GError **error);/* ---- */#define TYPE_COM_ALIBABA_BUILDING_TEST_PROXY (com_alibaba_building_test_proxy_get_type ())#define COM_ALIBABA_BUILDING_TEST_PROXY(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, ComAlibabaBuildingTestProxy))#define COM_ALIBABA_BUILDING_TEST_PROXY_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, ComAlibabaBuildingTestProxyClass))#define COM_ALIBABA_BUILDING_TEST_PROXY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, ComAlibabaBuildingTestProxyClass))#define IS_COM_ALIBABA_BUILDING_TEST_PROXY(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), TYPE_COM_ALIBABA_BUILDING_TEST_PROXY))#define IS_COM_ALIBABA_BUILDING_TEST_PROXY_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), TYPE_COM_ALIBABA_BUILDING_TEST_PROXY))typedef struct _ComAlibabaBuildingTestProxy ComAlibabaBuildingTestProxy;typedef struct _ComAlibabaBuildingTestProxyClass ComAlibabaBuildingTestProxyClass;typedef struct _ComAlibabaBuildingTestProxyPrivate ComAlibabaBuildingTestProxyPrivate;struct _ComAlibabaBuildingTestProxy{  /*< private >*/  GDBusProxy parent_instance;  ComAlibabaBuildingTestProxyPrivate *priv;};struct _ComAlibabaBuildingTestProxyClass{  GDBusProxyClass parent_class;};GType com_alibaba_building_test_proxy_get_type (void) G_GNUC_CONST;void com_alibaba_building_test_proxy_new (    GDBusConnection     *connection,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GAsyncReadyCallback  callback,    gpointer             user_data);ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_finish (    GAsyncResult        *res,    GError             **error);ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_sync (    GDBusConnection     *connection,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GError             **error);void com_alibaba_building_test_proxy_new_for_bus (    GBusType             bus_type,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GAsyncReadyCallback  callback,    gpointer             user_data);ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_for_bus_finish (    GAsyncResult        *res,    GError             **error);ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_for_bus_sync (    GBusType             bus_type,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GError             **error);/* ---- */#define TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON (com_alibaba_building_test_skeleton_get_type ())#define COM_ALIBABA_BUILDING_TEST_SKELETON(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON, ComAlibabaBuildingTestSkeleton))#define COM_ALIBABA_BUILDING_TEST_SKELETON_CLASS(k) (G_TYPE_CHECK_CLASS_CAST ((k), TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON, ComAlibabaBuildingTestSkeletonClass))#define COM_ALIBABA_BUILDING_TEST_SKELETON_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON, ComAlibabaBuildingTestSkeletonClass))#define IS_COM_ALIBABA_BUILDING_TEST_SKELETON(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON))#define IS_COM_ALIBABA_BUILDING_TEST_SKELETON_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON))typedef struct _ComAlibabaBuildingTestSkeleton ComAlibabaBuildingTestSkeleton;typedef struct _ComAlibabaBuildingTestSkeletonClass ComAlibabaBuildingTestSkeletonClass;typedef struct _ComAlibabaBuildingTestSkeletonPrivate ComAlibabaBuildingTestSkeletonPrivate;struct _ComAlibabaBuildingTestSkeleton{  /*< private >*/  GDBusInterfaceSkeleton parent_instance;  ComAlibabaBuildingTestSkeletonPrivate *priv;};struct _ComAlibabaBuildingTestSkeletonClass{  GDBusInterfaceSkeletonClass parent_class;};GType com_alibaba_building_test_skeleton_get_type (void) G_GNUC_CONST;ComAlibabaBuildingTest *com_alibaba_building_test_skeleton_new (void);G_END_DECLS#endif /* __BUILDING_H__ */

Building.c

/* * Generated by gdbus-codegen 2.30.3. DO NOT EDIT. * * The license of this code is the same as for the source it was derived from. */#ifdef HAVE_CONFIG_H#  include "config.h"#endif#include "Building.h"#ifdef G_OS_UNIX#  include <gio/gunixfdlist.h>#endiftypedef struct{  GDBusArgInfo parent_struct;  gboolean use_gvariant;} _ExtendedGDBusArgInfo;typedef struct{  GDBusMethodInfo parent_struct;  const gchar *signal_name;  gboolean pass_fdlist;} _ExtendedGDBusMethodInfo;typedef struct{  GDBusSignalInfo parent_struct;  const gchar *signal_name;} _ExtendedGDBusSignalInfo;typedef struct{  GDBusPropertyInfo parent_struct;  const gchar *hyphen_name;  gboolean use_gvariant;} _ExtendedGDBusPropertyInfo;typedef struct{  GDBusInterfaceInfo parent_struct;  const gchar *hyphen_name;} _ExtendedGDBusInterfaceInfo;typedef struct{  const _ExtendedGDBusPropertyInfo *info;  guint prop_id;  GValue orig_value; /* the value before the change */} ChangedProperty;static void_changed_property_free (ChangedProperty *data){  g_value_unset (&data->orig_value);  g_free (data);}static gboolean_g_strv_equal0 (gchar **a, gchar **b){  gboolean ret = FALSE;  guint n;  if (a == NULL && b == NULL)    {      ret = TRUE;      goto out;    }  if (a == NULL || b == NULL)    goto out;  if (g_strv_length (a) != g_strv_length (b))    goto out;  for (n = 0; a[n] != NULL; n++)    if (g_strcmp0 (a[n], b[n]) != 0)      goto out;  ret = TRUE;out:  return ret;}static gboolean_g_variant_equal0 (GVariant *a, GVariant *b){  gboolean ret = FALSE;  if (a == NULL && b == NULL)    {      ret = TRUE;      goto out;    }  if (a == NULL || b == NULL)    goto out;  ret = g_variant_equal (a, b);out:  return ret;}G_GNUC_UNUSED static gboolean_g_value_equal (const GValue *a, const GValue *b){  gboolean ret = FALSE;  g_assert (G_VALUE_TYPE (a) == G_VALUE_TYPE (b));  switch (G_VALUE_TYPE (a))    {      case G_TYPE_BOOLEAN:        ret = (g_value_get_boolean (a) == g_value_get_boolean (b));        break;      case G_TYPE_UCHAR:        ret = (g_value_get_uchar (a) == g_value_get_uchar (b));        break;      case G_TYPE_INT:        ret = (g_value_get_int (a) == g_value_get_int (b));        break;      case G_TYPE_UINT:        ret = (g_value_get_uint (a) == g_value_get_uint (b));        break;      case G_TYPE_INT64:        ret = (g_value_get_int64 (a) == g_value_get_int64 (b));        break;      case G_TYPE_UINT64:        ret = (g_value_get_uint64 (a) == g_value_get_uint64 (b));        break;      case G_TYPE_DOUBLE:        ret = (g_value_get_double (a) == g_value_get_double (b));        break;      case G_TYPE_STRING:        ret = (g_strcmp0 (g_value_get_string (a), g_value_get_string (b)) == 0);        break;      case G_TYPE_VARIANT:        ret = _g_variant_equal0 (g_value_get_variant (a), g_value_get_variant (b));        break;      default:        if (G_VALUE_TYPE (a) == G_TYPE_STRV)          ret = _g_strv_equal0 (g_value_get_boxed (a), g_value_get_boxed (b));        else          g_critical ("_g_value_equal() does not handle type %s", g_type_name (G_VALUE_TYPE (a)));        break;    }  return ret;}/* ------------------------------------------------------------------------ * Code for interface com.alibaba.Building.Test * ------------------------------------------------------------------------ *//** * SECTION:ComAlibabaBuildingTest * @title: ComAlibabaBuildingTest * @short_description: Generated C code for the com.alibaba.Building.Test D-Bus interface * * This section contains code for working with the <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link> D-Bus interface in C. *//* ---- Introspection data for com.alibaba.Building.Test ---- */static const _ExtendedGDBusArgInfo _com_alibaba_building_test_method_info_set_version_IN_ARG_version ={  {    -1,    "version",    "s",    NULL  },  FALSE};static const _ExtendedGDBusArgInfo * const _com_alibaba_building_test_method_info_set_version_IN_ARG_pointers[] ={  &_com_alibaba_building_test_method_info_set_version_IN_ARG_version,  NULL};static const _ExtendedGDBusMethodInfo _com_alibaba_building_test_method_info_set_version ={  {    -1,    "SetVersion",    (GDBusArgInfo **) &_com_alibaba_building_test_method_info_set_version_IN_ARG_pointers,    NULL,    NULL  },  "handle-set-version",  FALSE};static const _ExtendedGDBusMethodInfo * const _com_alibaba_building_test_method_info_pointers[] ={  &_com_alibaba_building_test_method_info_set_version,  NULL};static const _ExtendedGDBusArgInfo _com_alibaba_building_test_signal_info_test_status_ARG_status ={  {    -1,    "status",    "i",    NULL  },  FALSE};static const _ExtendedGDBusArgInfo * const _com_alibaba_building_test_signal_info_test_status_ARG_pointers[] ={  &_com_alibaba_building_test_signal_info_test_status_ARG_status,  NULL};static const _ExtendedGDBusSignalInfo _com_alibaba_building_test_signal_info_test_status ={  {    -1,    "TestStatus",    (GDBusArgInfo **) &_com_alibaba_building_test_signal_info_test_status_ARG_pointers,    NULL  },  "test-status"};static const _ExtendedGDBusSignalInfo * const _com_alibaba_building_test_signal_info_pointers[] ={  &_com_alibaba_building_test_signal_info_test_status,  NULL};static const _ExtendedGDBusInterfaceInfo _com_alibaba_building_test_interface_info ={  {    -1,    "com.alibaba.Building.Test",    (GDBusMethodInfo **) &_com_alibaba_building_test_method_info_pointers,    (GDBusSignalInfo **) &_com_alibaba_building_test_signal_info_pointers,    NULL,    NULL  },  "com-alibaba-building-test",};/** * com_alibaba_building_test_interface_info: * * Gets a machine-readable description of the <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link> D-Bus interface. * * Returns: (transfer none): A #GDBusInterfaceInfo. Do not free. */GDBusInterfaceInfo *com_alibaba_building_test_interface_info (void){  return (GDBusInterfaceInfo *) &_com_alibaba_building_test_interface_info;}/** * com_alibaba_building_test_override_properties: * @klass: The class structure for a #GObject<!-- -->-derived class. * @property_id_begin: The property id to assign to the first overridden property. * * Overrides all #GObject properties in the #ComAlibabaBuildingTest interface for a concrete class. * The properties are overridden in the order they are defined. * * Returns: The last property id. */guintcom_alibaba_building_test_override_properties (GObjectClass *klass, guint property_id_begin){  return property_id_begin - 1;}/** * ComAlibabaBuildingTest: * * Abstract interface type for the D-Bus interface <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link>. *//** * ComAlibabaBuildingTestIface: * @parent_iface: The parent interface. * @handle_set_version: Handler for the #ComAlibabaBuildingTest::handle-set-version signal. * @test_status: Handler for the #ComAlibabaBuildingTest::test-status signal. * * Virtual table for the D-Bus interface <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link>. */static voidcom_alibaba_building_test_default_init (ComAlibabaBuildingTestIface *iface){  /* GObject signals for incoming D-Bus method calls: */  /**   * ComAlibabaBuildingTest::handle-set-version:   * @object: A #ComAlibabaBuildingTest.   * @invocation: A #GDBusMethodInvocation.   * @arg_version: Argument passed by remote caller.   *   * Signal emitted when a remote caller is invoking the <link linkend="gdbus-method-com-alibaba-Building-Test.SetVersion">SetVersion()</link> D-Bus method.   *   * If a signal handler returns %TRUE, it means the signal handler will handle the invocation (e.g. take a reference to @invocation and eventually call com_alibaba_building_test_complete_set_version() or e.g. g_dbus_method_invocation_return_error() on it) and no order signal handlers will run. If no signal handler handles the invocation, the %G_DBUS_ERROR_UNKNOWN_METHOD error is returned.   *   * Returns: %TRUE if the invocation was handled, %FALSE to let other signal handlers run.   */  g_signal_new ("handle-set-version",    G_TYPE_FROM_INTERFACE (iface),    G_SIGNAL_RUN_LAST,    G_STRUCT_OFFSET (ComAlibabaBuildingTestIface, handle_set_version),    g_signal_accumulator_true_handled,    NULL,    g_cclosure_marshal_generic,    G_TYPE_BOOLEAN,    2,    G_TYPE_DBUS_METHOD_INVOCATION, G_TYPE_STRING);  /* GObject signals for received D-Bus signals: */  /**   * ComAlibabaBuildingTest::test-status:   * @object: A #ComAlibabaBuildingTest.   * @arg_status: Argument.   *   * On the client-side, this signal is emitted whenever the D-Bus signal <link linkend="gdbus-signal-com-alibaba-Building-Test.TestStatus">"TestStatus"</link> is received.   *   * On the service-side, this signal can be used with e.g. g_signal_emit_by_name() to make the object emit the D-Bus signal.   */  g_signal_new ("test-status",    G_TYPE_FROM_INTERFACE (iface),    G_SIGNAL_RUN_LAST,    G_STRUCT_OFFSET (ComAlibabaBuildingTestIface, test_status),    NULL,    NULL,    g_cclosure_marshal_generic,    G_TYPE_NONE,    1, G_TYPE_INT);}typedef ComAlibabaBuildingTestIface ComAlibabaBuildingTestInterface;G_DEFINE_INTERFACE (ComAlibabaBuildingTest, com_alibaba_building_test, G_TYPE_OBJECT);/** * com_alibaba_building_test_emit_test_status: * @object: A #ComAlibabaBuildingTest. * @arg_status: Argument to pass with the signal. * * Emits the <link linkend="gdbus-signal-com-alibaba-Building-Test.TestStatus">"TestStatus"</link> D-Bus signal. */voidcom_alibaba_building_test_emit_test_status (    ComAlibabaBuildingTest *object,    gint arg_status){  g_signal_emit_by_name (object, "test-status", arg_status);}/** * com_alibaba_building_test_call_set_version: * @proxy: A #ComAlibabaBuildingTestProxy. * @arg_version: Argument to pass with the method invocation. * @cancellable: (allow-none): A #GCancellable or %NULL. * @callback: A #GAsyncReadyCallback to call when the request is satisfied or %NULL. * @user_data: User data to pass to @callback. * * Asynchronously invokes the <link linkend="gdbus-method-com-alibaba-Building-Test.SetVersion">SetVersion()</link> D-Bus method on @proxy. * When the operation is finished, @callback will be invoked in the <link linkend="g-main-context-push-thread-default">thread-default main loop</link> of the thread you are calling this method from. * You can then call com_alibaba_building_test_call_set_version_finish() to get the result of the operation. * * See com_alibaba_building_test_call_set_version_sync() for the synchronous, blocking version of this method. */voidcom_alibaba_building_test_call_set_version (    ComAlibabaBuildingTest *proxy,    const gchar *arg_version,    GCancellable *cancellable,    GAsyncReadyCallback callback,    gpointer user_data){  g_dbus_proxy_call (G_DBUS_PROXY (proxy),    "SetVersion",    g_variant_new ("(s)",                   arg_version),    G_DBUS_CALL_FLAGS_NONE,    -1,    cancellable,    callback,    user_data);}/** * com_alibaba_building_test_call_set_version_finish: * @proxy: A #ComAlibabaBuildingTestProxy. * @res: The #GAsyncResult obtained from the #GAsyncReadyCallback passed to com_alibaba_building_test_call_set_version(). * @error: Return location for error or %NULL. * * Finishes an operation started with com_alibaba_building_test_call_set_version(). * * Returns: (skip): %TRUE if the call succeded, %FALSE if @error is set. */gbooleancom_alibaba_building_test_call_set_version_finish (    ComAlibabaBuildingTest *proxy,    GAsyncResult *res,    GError **error){  GVariant *_ret;  _ret = g_dbus_proxy_call_finish (G_DBUS_PROXY (proxy), res, error);  if (_ret == NULL)    goto _out;  g_variant_get (_ret,                 "()");  g_variant_unref (_ret);_out:  return _ret != NULL;}/** * com_alibaba_building_test_call_set_version_sync: * @proxy: A #ComAlibabaBuildingTestProxy. * @arg_version: Argument to pass with the method invocation. * @cancellable: (allow-none): A #GCancellable or %NULL. * @error: Return location for error or %NULL. * * Synchronously invokes the <link linkend="gdbus-method-com-alibaba-Building-Test.SetVersion">SetVersion()</link> D-Bus method on @proxy. The calling thread is blocked until a reply is received. * * See com_alibaba_building_test_call_set_version() for the asynchronous version of this method. * * Returns: (skip): %TRUE if the call succeded, %FALSE if @error is set. */gbooleancom_alibaba_building_test_call_set_version_sync (    ComAlibabaBuildingTest *proxy,    const gchar *arg_version,    GCancellable *cancellable,    GError **error){  GVariant *_ret;  _ret = g_dbus_proxy_call_sync (G_DBUS_PROXY (proxy),    "SetVersion",    g_variant_new ("(s)",                   arg_version),    G_DBUS_CALL_FLAGS_NONE,    -1,    cancellable,    error);  if (_ret == NULL)    goto _out;  g_variant_get (_ret,                 "()");  g_variant_unref (_ret);_out:  return _ret != NULL;}/** * com_alibaba_building_test_complete_set_version: * @object: A #ComAlibabaBuildingTest. * @invocation: (transfer full): A #GDBusMethodInvocation. * * Helper function used in service implementations to finish handling invocations of the <link linkend="gdbus-method-com-alibaba-Building-Test.SetVersion">SetVersion()</link> D-Bus method. If you instead want to finish handling an invocation by returning an error, use g_dbus_method_invocation_return_error() or similar. * * This method will free @invocation, you cannot use it afterwards. */voidcom_alibaba_building_test_complete_set_version (    ComAlibabaBuildingTest *object,    GDBusMethodInvocation *invocation){  g_dbus_method_invocation_return_value (invocation,    g_variant_new ("()"));}/* ------------------------------------------------------------------------ *//** * ComAlibabaBuildingTestProxy: * * The #ComAlibabaBuildingTestProxy structure contains only private data and should only be accessed using the provided API. *//** * ComAlibabaBuildingTestProxyClass: * @parent_class: The parent class. * * Class structure for #ComAlibabaBuildingTestProxy. */struct _ComAlibabaBuildingTestProxyPrivate{  GData *qdata;};static void com_alibaba_building_test_proxy_iface_init (ComAlibabaBuildingTestIface *iface);G_DEFINE_TYPE_WITH_CODE (ComAlibabaBuildingTestProxy, com_alibaba_building_test_proxy, G_TYPE_DBUS_PROXY,                         G_IMPLEMENT_INTERFACE (TYPE_COM_ALIBABA_BUILDING_TEST, com_alibaba_building_test_proxy_iface_init));static voidcom_alibaba_building_test_proxy_finalize (GObject *object){  ComAlibabaBuildingTestProxy *proxy = COM_ALIBABA_BUILDING_TEST_PROXY (object);  g_datalist_clear (&proxy->priv->qdata);  G_OBJECT_CLASS (com_alibaba_building_test_proxy_parent_class)->finalize (object);}static voidcom_alibaba_building_test_proxy_get_property (GObject      *object,  guint         prop_id,  GValue       *value,  GParamSpec   *pspec){}static voidcom_alibaba_building_test_proxy_set_property (GObject      *object,  guint         prop_id,  const GValue *value,  GParamSpec   *pspec){}static voidcom_alibaba_building_test_proxy_g_signal (GDBusProxy *proxy,  const gchar *sender_name,  const gchar *signal_name,  GVariant *parameters){  _ExtendedGDBusSignalInfo *info;  GVariantIter iter;  GVariant *child;  GValue *paramv;  guint num_params;  guint n;  guint signal_id;  info = (_ExtendedGDBusSignalInfo *) g_dbus_interface_info_lookup_signal ((GDBusInterfaceInfo *) &_com_alibaba_building_test_interface_info, signal_name);  if (info == NULL)    return;  num_params = g_variant_n_children (parameters);  paramv = g_new0 (GValue, num_params + 1);  g_value_init (¶mv[0], TYPE_COM_ALIBABA_BUILDING_TEST);  g_value_set_object (¶mv[0], proxy);  g_variant_iter_init (&iter, parameters);  n = 1;  while ((child = g_variant_iter_next_value (&iter)) != NULL)    {      _ExtendedGDBusArgInfo *arg_info = (_ExtendedGDBusArgInfo *) info->parent_struct.args[n - 1];      if (arg_info->use_gvariant)        {          g_value_init (¶mv[n], G_TYPE_VARIANT);          g_value_set_variant (¶mv[n], child);          n++;        }      else        g_dbus_gvariant_to_gvalue (child, ¶mv[n++]);      g_variant_unref (child);    }  signal_id = g_signal_lookup (info->signal_name, TYPE_COM_ALIBABA_BUILDING_TEST);  g_signal_emitv (paramv, signal_id, 0, NULL);  for (n = 0; n < num_params + 1; n++)    g_value_unset (¶mv[n]);  g_free (paramv);}static voidcom_alibaba_building_test_proxy_g_properties_changed (GDBusProxy *_proxy,  GVariant *changed_properties,  const gchar *const *invalidated_properties){  ComAlibabaBuildingTestProxy *proxy = COM_ALIBABA_BUILDING_TEST_PROXY (_proxy);  guint n;  const gchar *key;  GVariantIter *iter;  _ExtendedGDBusPropertyInfo *info;  g_variant_get (changed_properties, "a{sv}", &iter);  while (g_variant_iter_next (iter, "{&sv}", &key, NULL))    {      info = (_ExtendedGDBusPropertyInfo *) g_dbus_interface_info_lookup_property ((GDBusInterfaceInfo *) &_com_alibaba_building_test_interface_info, key);      g_datalist_remove_data (&proxy->priv->qdata, key);      if (info != NULL)        g_object_notify (G_OBJECT (proxy), info->hyphen_name);    }  g_variant_iter_free (iter);  for (n = 0; invalidated_properties[n] != NULL; n++)    {      info = (_ExtendedGDBusPropertyInfo *) g_dbus_interface_info_lookup_property ((GDBusInterfaceInfo *) &_com_alibaba_building_test_interface_info, invalidated_properties[n]);      g_datalist_remove_data (&proxy->priv->qdata, invalidated_properties[n]);      if (info != NULL)        g_object_notify (G_OBJECT (proxy), info->hyphen_name);    }}static voidcom_alibaba_building_test_proxy_init (ComAlibabaBuildingTestProxy *proxy){  proxy->priv = G_TYPE_INSTANCE_GET_PRIVATE (proxy, TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, ComAlibabaBuildingTestProxyPrivate);  g_dbus_proxy_set_interface_info (G_DBUS_PROXY (proxy), com_alibaba_building_test_interface_info ());}static voidcom_alibaba_building_test_proxy_class_init (ComAlibabaBuildingTestProxyClass *klass){  GObjectClass *gobject_class;  GDBusProxyClass *proxy_class;  g_type_class_add_private (klass, sizeof (ComAlibabaBuildingTestProxyPrivate));  gobject_class = G_OBJECT_CLASS (klass);  gobject_class->finalize     = com_alibaba_building_test_proxy_finalize;  gobject_class->get_property = com_alibaba_building_test_proxy_get_property;  gobject_class->set_property = com_alibaba_building_test_proxy_set_property;  proxy_class = G_DBUS_PROXY_CLASS (klass);  proxy_class->g_signal = com_alibaba_building_test_proxy_g_signal;  proxy_class->g_properties_changed = com_alibaba_building_test_proxy_g_properties_changed;}static voidcom_alibaba_building_test_proxy_iface_init (ComAlibabaBuildingTestIface *iface){}/** * com_alibaba_building_test_proxy_new: * @connection: A #GDBusConnection. * @flags: Flags from the #GDBusProxyFlags enumeration. * @name: (allow-none): A bus name (well-known or unique) or %NULL if @connection is not a message bus connection. * @object_path: An object path. * @cancellable: (allow-none): A #GCancellable or %NULL. * @callback: A #GAsyncReadyCallback to call when the request is satisfied. * @user_data: User data to pass to @callback. * * Asynchronously creates a proxy for the D-Bus interface <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link>. See g_dbus_proxy_new() for more details. * * When the operation is finished, @callback will be invoked in the <link linkend="g-main-context-push-thread-default">thread-default main loop</link> of the thread you are calling this method from. * You can then call com_alibaba_building_test_proxy_new_finish() to get the result of the operation. * * See com_alibaba_building_test_proxy_new_sync() for the synchronous, blocking version of this constructor. */voidcom_alibaba_building_test_proxy_new (    GDBusConnection     *connection,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GAsyncReadyCallback  callback,    gpointer             user_data){  g_async_initable_new_async (TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, G_PRIORITY_DEFAULT, cancellable, callback, user_data, "g-flags", flags, "g-name", name, "g-connection", connection, "g-object-path", object_path, "g-interface-name", "com.alibaba.Building.Test", NULL);}/** * com_alibaba_building_test_proxy_new_finish: * @res: The #GAsyncResult obtained from the #GAsyncReadyCallback passed to com_alibaba_building_test_proxy_new(). * @error: Return location for error or %NULL * * Finishes an operation started with com_alibaba_building_test_proxy_new(). * * Returns: (transfer full) (type ComAlibabaBuildingTestProxy): The constructed proxy object or %NULL if @error is set. */ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_finish (    GAsyncResult        *res,    GError             **error){  GObject *ret;  GObject *source_object;  source_object = g_async_result_get_source_object (res);  ret = g_async_initable_new_finish (G_ASYNC_INITABLE (source_object), res, error);  g_object_unref (source_object);  if (ret != NULL)    return COM_ALIBABA_BUILDING_TEST (ret);  else    return NULL;}/** * com_alibaba_building_test_proxy_new_sync: * @connection: A #GDBusConnection. * @flags: Flags from the #GDBusProxyFlags enumeration. * @name: (allow-none): A bus name (well-known or unique) or %NULL if @connection is not a message bus connection. * @object_path: An object path. * @cancellable: (allow-none): A #GCancellable or %NULL. * @error: Return location for error or %NULL * * Synchronously creates a proxy for the D-Bus interface <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link>. See g_dbus_proxy_new_sync() for more details. * * The calling thread is blocked until a reply is received. * * See com_alibaba_building_test_proxy_new() for the asynchronous version of this constructor. * * Returns: (transfer full) (type ComAlibabaBuildingTestProxy): The constructed proxy object or %NULL if @error is set. */ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_sync (    GDBusConnection     *connection,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GError             **error){  GInitable *ret;  ret = g_initable_new (TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, cancellable, error, "g-flags", flags, "g-name", name, "g-connection", connection, "g-object-path", object_path, "g-interface-name", "com.alibaba.Building.Test", NULL);  if (ret != NULL)    return COM_ALIBABA_BUILDING_TEST (ret);  else    return NULL;}/** * com_alibaba_building_test_proxy_new_for_bus: * @bus_type: A #GBusType. * @flags: Flags from the #GDBusProxyFlags enumeration. * @name: A bus name (well-known or unique). * @object_path: An object path. * @cancellable: (allow-none): A #GCancellable or %NULL. * @callback: A #GAsyncReadyCallback to call when the request is satisfied. * @user_data: User data to pass to @callback. * * Like com_alibaba_building_test_proxy_new() but takes a #GBusType instead of a #GDBusConnection. * * When the operation is finished, @callback will be invoked in the <link linkend="g-main-context-push-thread-default">thread-default main loop</link> of the thread you are calling this method from. * You can then call com_alibaba_building_test_proxy_new_for_bus_finish() to get the result of the operation. * * See com_alibaba_building_test_proxy_new_for_bus_sync() for the synchronous, blocking version of this constructor. */voidcom_alibaba_building_test_proxy_new_for_bus (    GBusType             bus_type,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GAsyncReadyCallback  callback,    gpointer             user_data){  g_async_initable_new_async (TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, G_PRIORITY_DEFAULT, cancellable, callback, user_data, "g-flags", flags, "g-name", name, "g-bus-type", bus_type, "g-object-path", object_path, "g-interface-name", "com.alibaba.Building.Test", NULL);}/** * com_alibaba_building_test_proxy_new_for_bus_finish: * @res: The #GAsyncResult obtained from the #GAsyncReadyCallback passed to com_alibaba_building_test_proxy_new_for_bus(). * @error: Return location for error or %NULL * * Finishes an operation started with com_alibaba_building_test_proxy_new_for_bus(). * * Returns: (transfer full) (type ComAlibabaBuildingTestProxy): The constructed proxy object or %NULL if @error is set. */ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_for_bus_finish (    GAsyncResult        *res,    GError             **error){  GObject *ret;  GObject *source_object;  source_object = g_async_result_get_source_object (res);  ret = g_async_initable_new_finish (G_ASYNC_INITABLE (source_object), res, error);  g_object_unref (source_object);  if (ret != NULL)    return COM_ALIBABA_BUILDING_TEST (ret);  else    return NULL;}/** * com_alibaba_building_test_proxy_new_for_bus_sync: * @bus_type: A #GBusType. * @flags: Flags from the #GDBusProxyFlags enumeration. * @name: A bus name (well-known or unique). * @object_path: An object path. * @cancellable: (allow-none): A #GCancellable or %NULL. * @error: Return location for error or %NULL * * Like com_alibaba_building_test_proxy_new_sync() but takes a #GBusType instead of a #GDBusConnection. * * The calling thread is blocked until a reply is received. * * See com_alibaba_building_test_proxy_new_for_bus() for the asynchronous version of this constructor. * * Returns: (transfer full) (type ComAlibabaBuildingTestProxy): The constructed proxy object or %NULL if @error is set. */ComAlibabaBuildingTest *com_alibaba_building_test_proxy_new_for_bus_sync (    GBusType             bus_type,    GDBusProxyFlags      flags,    const gchar         *name,    const gchar         *object_path,    GCancellable        *cancellable,    GError             **error){  GInitable *ret;  ret = g_initable_new (TYPE_COM_ALIBABA_BUILDING_TEST_PROXY, cancellable, error, "g-flags", flags, "g-name", name, "g-bus-type", bus_type, "g-object-path", object_path, "g-interface-name", "com.alibaba.Building.Test", NULL);  if (ret != NULL)    return COM_ALIBABA_BUILDING_TEST (ret);  else    return NULL;}/* ------------------------------------------------------------------------ *//** * ComAlibabaBuildingTestSkeleton: * * The #ComAlibabaBuildingTestSkeleton structure contains only private data and should only be accessed using the provided API. *//** * ComAlibabaBuildingTestSkeletonClass: * @parent_class: The parent class. * * Class structure for #ComAlibabaBuildingTestSkeleton. */struct _ComAlibabaBuildingTestSkeletonPrivate{  GValueArray *properties;  GList *changed_properties;  GSource *changed_properties_idle_source;  GMainContext *context;  GMutex *lock;};static void_com_alibaba_building_test_skeleton_handle_method_call (  GDBusConnection *connection,  const gchar *sender,  const gchar *object_path,  const gchar *interface_name,  const gchar *method_name,  GVariant *parameters,  GDBusMethodInvocation *invocation,  gpointer user_data){  ComAlibabaBuildingTestSkeleton *skeleton = COM_ALIBABA_BUILDING_TEST_SKELETON (user_data);  _ExtendedGDBusMethodInfo *info;  GVariantIter iter;  GVariant *child;  GValue *paramv;  guint num_params;  guint num_extra;  guint n;  guint signal_id;  GValue return_value = {0};  info = (_ExtendedGDBusMethodInfo *) g_dbus_method_invocation_get_method_info (invocation);  g_assert (info != NULL);  num_params = g_variant_n_children (parameters);  num_extra = info->pass_fdlist ? 3 : 2;  paramv = g_new0 (GValue, num_params + num_extra);  n = 0;  g_value_init (¶mv[n], TYPE_COM_ALIBABA_BUILDING_TEST);  g_value_set_object (¶mv[n++], skeleton);  g_value_init (¶mv[n], G_TYPE_DBUS_METHOD_INVOCATION);  g_value_set_object (¶mv[n++], invocation);  if (info->pass_fdlist)    {#ifdef G_OS_UNIX      g_value_init (¶mv[n], G_TYPE_UNIX_FD_LIST);      g_value_set_object (¶mv[n++], g_dbus_message_get_unix_fd_list (g_dbus_method_invocation_get_message (invocation)));#else      g_assert_not_reached ();#endif    }  g_variant_iter_init (&iter, parameters);  while ((child = g_variant_iter_next_value (&iter)) != NULL)    {      _ExtendedGDBusArgInfo *arg_info = (_ExtendedGDBusArgInfo *) info->parent_struct.in_args[n - num_extra];      if (arg_info->use_gvariant)        {          g_value_init (¶mv[n], G_TYPE_VARIANT);          g_value_set_variant (¶mv[n], child);          n++;        }      else        g_dbus_gvariant_to_gvalue (child, ¶mv[n++]);      g_variant_unref (child);    }  signal_id = g_signal_lookup (info->signal_name, TYPE_COM_ALIBABA_BUILDING_TEST);  g_value_init (&return_value, G_TYPE_BOOLEAN);  g_signal_emitv (paramv, signal_id, 0, &return_value);  if (!g_value_get_boolean (&return_value))    g_dbus_method_invocation_return_error (invocation, G_DBUS_ERROR, G_DBUS_ERROR_UNKNOWN_METHOD, "Method %s is not implemented on interface %s", method_name, interface_name);  g_value_unset (&return_value);  for (n = 0; n < num_params + num_extra; n++)    g_value_unset (¶mv[n]);  g_free (paramv);}static GVariant *_com_alibaba_building_test_skeleton_handle_get_property (  GDBusConnection *connection,  const gchar *sender,  const gchar *object_path,  const gchar *interface_name,  const gchar *property_name,  GError **error,  gpointer user_data){  ComAlibabaBuildingTestSkeleton *skeleton = COM_ALIBABA_BUILDING_TEST_SKELETON (user_data);  GValue value = {0};  GParamSpec *pspec;  _ExtendedGDBusPropertyInfo *info;  GVariant *ret;  ret = NULL;  info = (_ExtendedGDBusPropertyInfo *) g_dbus_interface_info_lookup_property ((GDBusInterfaceInfo *) &_com_alibaba_building_test_interface_info, property_name);  g_assert (info != NULL);  pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (skeleton), info->hyphen_name);  if (pspec == NULL)    {      g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS, "No property with name %s", property_name);    }  else    {      g_value_init (&value, pspec->value_type);      g_object_get_property (G_OBJECT (skeleton), info->hyphen_name, &value);      ret = g_dbus_gvalue_to_gvariant (&value, G_VARIANT_TYPE (info->parent_struct.signature));      g_value_unset (&value);    }  return ret;}static gboolean_com_alibaba_building_test_skeleton_handle_set_property (  GDBusConnection *connection,  const gchar *sender,  const gchar *object_path,  const gchar *interface_name,  const gchar *property_name,  GVariant *variant,  GError **error,  gpointer user_data){  ComAlibabaBuildingTestSkeleton *skeleton = COM_ALIBABA_BUILDING_TEST_SKELETON (user_data);  GValue value = {0};  GParamSpec *pspec;  _ExtendedGDBusPropertyInfo *info;  gboolean ret;  ret = FALSE;  info = (_ExtendedGDBusPropertyInfo *) g_dbus_interface_info_lookup_property ((GDBusInterfaceInfo *) &_com_alibaba_building_test_interface_info, property_name);  g_assert (info != NULL);  pspec = g_object_class_find_property (G_OBJECT_GET_CLASS (skeleton), info->hyphen_name);  if (pspec == NULL)    {      g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_INVALID_ARGS, "No property with name %s", property_name);    }  else    {      if (info->use_gvariant)        g_value_set_variant (&value, variant);      else        g_dbus_gvariant_to_gvalue (variant, &value);      g_object_set_property (G_OBJECT (skeleton), info->hyphen_name, &value);      g_value_unset (&value);      ret = TRUE;    }  return ret;}static const GDBusInterfaceVTable _com_alibaba_building_test_skeleton_vtable ={  _com_alibaba_building_test_skeleton_handle_method_call,  _com_alibaba_building_test_skeleton_handle_get_property,  _com_alibaba_building_test_skeleton_handle_set_property};static GDBusInterfaceInfo *com_alibaba_building_test_skeleton_dbus_interface_get_info (GDBusInterfaceSkeleton *skeleton){  return com_alibaba_building_test_interface_info ();}static GDBusInterfaceVTable *com_alibaba_building_test_skeleton_dbus_interface_get_vtable (GDBusInterfaceSkeleton *skeleton){  return (GDBusInterfaceVTable *) &_com_alibaba_building_test_skeleton_vtable;}static GVariant *com_alibaba_building_test_skeleton_dbus_interface_get_properties (GDBusInterfaceSkeleton *_skeleton){  ComAlibabaBuildingTestSkeleton *skeleton = COM_ALIBABA_BUILDING_TEST_SKELETON (_skeleton);  GVariantBuilder builder;  guint n;  g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));  if (_com_alibaba_building_test_interface_info.parent_struct.properties == NULL)    goto out;  for (n = 0; _com_alibaba_building_test_interface_info.parent_struct.properties[n] != NULL; n++)    {      GDBusPropertyInfo *info = _com_alibaba_building_test_interface_info.parent_struct.properties[n];      if (info->flags & G_DBUS_PROPERTY_INFO_FLAGS_READABLE)        {          GVariant *value;          value = _com_alibaba_building_test_skeleton_handle_get_property (g_dbus_interface_skeleton_get_connection (G_DBUS_INTERFACE_SKELETON (skeleton)), NULL, g_dbus_interface_skeleton_get_object_path (G_DBUS_INTERFACE_SKELETON (skeleton)), "com.alibaba.Building.Test", info->name, NULL, skeleton);          if (value != NULL)            {              g_variant_take_ref (value);              g_variant_builder_add (&builder, "{sv}", info->name, value);              g_variant_unref (value);            }        }    }out:  return g_variant_builder_end (&builder);}static voidcom_alibaba_building_test_skeleton_dbus_interface_flush (GDBusInterfaceSkeleton *_skeleton){}static void_com_alibaba_building_test_on_signal_test_status (    ComAlibabaBuildingTest *object,    gint arg_status){  ComAlibabaBuildingTestSkeleton *skeleton = COM_ALIBABA_BUILDING_TEST_SKELETON (object);  GDBusConnection *connection = g_dbus_interface_skeleton_get_connection (G_DBUS_INTERFACE_SKELETON (skeleton));  if (connection == NULL)    return;  g_dbus_connection_emit_signal (connection,    NULL, g_dbus_interface_skeleton_get_object_path (G_DBUS_INTERFACE_SKELETON (skeleton)), "com.alibaba.Building.Test", "TestStatus",    g_variant_new ("(i)",                   arg_status), NULL);}static void com_alibaba_building_test_skeleton_iface_init (ComAlibabaBuildingTestIface *iface);G_DEFINE_TYPE_WITH_CODE (ComAlibabaBuildingTestSkeleton, com_alibaba_building_test_skeleton, G_TYPE_DBUS_INTERFACE_SKELETON,                         G_IMPLEMENT_INTERFACE (TYPE_COM_ALIBABA_BUILDING_TEST, com_alibaba_building_test_skeleton_iface_init));static voidcom_alibaba_building_test_skeleton_finalize (GObject *object){  ComAlibabaBuildingTestSkeleton *skeleton = COM_ALIBABA_BUILDING_TEST_SKELETON (object);  g_list_foreach (skeleton->priv->changed_properties, (GFunc) _changed_property_free, NULL);  g_list_free (skeleton->priv->changed_properties);  if (skeleton->priv->changed_properties_idle_source != NULL)    g_source_destroy (skeleton->priv->changed_properties_idle_source);  if (skeleton->priv->context != NULL)    g_main_context_unref (skeleton->priv->context);  g_mutex_free (skeleton->priv->lock);  G_OBJECT_CLASS (com_alibaba_building_test_skeleton_parent_class)->finalize (object);}static voidcom_alibaba_building_test_skeleton_init (ComAlibabaBuildingTestSkeleton *skeleton){  skeleton->priv = G_TYPE_INSTANCE_GET_PRIVATE (skeleton, TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON, ComAlibabaBuildingTestSkeletonPrivate);  skeleton->priv->lock = g_mutex_new ();  skeleton->priv->context = g_main_context_get_thread_default ();  if (skeleton->priv->context != NULL)    g_main_context_ref (skeleton->priv->context);}static voidcom_alibaba_building_test_skeleton_class_init (ComAlibabaBuildingTestSkeletonClass *klass){  GObjectClass *gobject_class;  GDBusInterfaceSkeletonClass *skeleton_class;  g_type_class_add_private (klass, sizeof (ComAlibabaBuildingTestSkeletonPrivate));  gobject_class = G_OBJECT_CLASS (klass);  gobject_class->finalize = com_alibaba_building_test_skeleton_finalize;  skeleton_class = G_DBUS_INTERFACE_SKELETON_CLASS (klass);  skeleton_class->get_info = com_alibaba_building_test_skeleton_dbus_interface_get_info;  skeleton_class->get_properties = com_alibaba_building_test_skeleton_dbus_interface_get_properties;  skeleton_class->flush = com_alibaba_building_test_skeleton_dbus_interface_flush;  skeleton_class->get_vtable = com_alibaba_building_test_skeleton_dbus_interface_get_vtable;}static voidcom_alibaba_building_test_skeleton_iface_init (ComAlibabaBuildingTestIface *iface){  iface->test_status = _com_alibaba_building_test_on_signal_test_status;}/** * com_alibaba_building_test_skeleton_new: * * Creates a skeleton object for the D-Bus interface <link linkend="gdbus-interface-com-alibaba-Building-Test.top_of_page">com.alibaba.Building.Test</link>. * * Returns: (transfer full) (type ComAlibabaBuildingTestSkeleton): The skeleton object. */ComAlibabaBuildingTest *com_alibaba_building_test_skeleton_new (void){  return COM_ALIBABA_BUILDING_TEST (g_object_new (TYPE_COM_ALIBABA_BUILDING_TEST_SKELETON, NULL));}

有了这两个文件，我们就可以真正开始写服务端代码了。

使用g_bus_own_name注册，具体信息请参考帮助文档

guintg_bus_own_name (GBusType bus_type,                const gchar *name,                GBusNameOwnerFlags flags,                GBusAcquiredCallback bus_acquired_handler,                GBusNameAcquiredCallback name_acquired_handler,                GBusNameLostCallback name_lost_handler,                gpointer user_data,                GDestroyNotify user_data_free_func);

其中参数GBusAcquiredCallback相应的回调函数中需要调用g_signal_connect来连接函数（比如例子中的SetVersion），至于信号，则直接调用生成文件中的函数com_alibaba_building_test_emit_test_status

其中g_signal_connect的第一参数需要调用com_alibaba_building_test_skeleton_new来创建。

这样服务端的流程就基本好了。下一篇讲解一下客户端如何实现来连接服务端。