gio/ginitable.h

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2009 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * Author: Alexander Larsson <alexl@redhat.com>
  19  */
  20
  21 #ifndef __G_INITABLE_H__
  22 #define __G_INITABLE_H__
  23
  24 #if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
  25 #error "Only <gio/gio.h> can be included directly."
  26 #endif
  27
  28 #include <gio/giotypes.h>
  29
  30 G_BEGIN_DECLS
  31
  32 #define G_TYPE_INITABLE            (g_initable_get_type ())
  33 #define G_INITABLE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_INITABLE, GInitable))
  34 #define G_IS_INITABLE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_INITABLE))
  35 #define G_INITABLE_GET_IFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_INITABLE, GInitableIface))
  36 #define G_TYPE_IS_INITABLE(type)   (g_type_is_a ((type), G_TYPE_INITABLE))
  37
  38 /**
  39  * GInitable:
  40  *
  41  * Interface for initializable objects.
  42  *
  43  * Since: 2.22
  44  **/
  45 typedef struct _GInitableIface GInitableIface;
  46
  47 /**
  48  * GInitableIface:
  49  * @g_iface: The parent interface.
  50  * @init: Initializes the object.
  51  *
  52  * Provides an interface for initializing object such that initialization
  53  * may fail.
  54  *
  55  * Since: 2.22
  56  **/
  57 struct _GInitableIface
  58 {
  59   GTypeInterface g_iface;
  60
  61   /* Virtual Table */
  62
  63   gboolean    (* init) (GInitable    *initable,
  64                         GCancellable *cancellable,
  65                         GError      **error);
  66 };
  67
  68
  69 GLIB_AVAILABLE_IN_ALL
  70 GType    g_initable_get_type   (void) G_GNUC_CONST;
  71
  72 GLIB_AVAILABLE_IN_ALL
  73 gboolean g_initable_init       (GInitable     *initable,
  74                                 GCancellable  *cancellable,
  75                                 GError       **error);
  76
  77 GLIB_AVAILABLE_IN_ALL
  78 gpointer g_initable_new        (GType          object_type,
  79                                 GCancellable  *cancellable,
  80                                 GError       **error,
  81                                 const gchar   *first_property_name,
  82                                 ...);
  83 GLIB_AVAILABLE_IN_ALL
  84 gpointer g_initable_newv       (GType          object_type,
  85                                 guint          n_parameters,
  86                                 GParameter    *parameters,
  87                                 GCancellable  *cancellable,
  88                                 GError       **error);
  89 GLIB_AVAILABLE_IN_ALL
  90 GObject* g_initable_new_valist (GType          object_type,
  91                                 const gchar   *first_property_name,
  92                                 va_list        var_args,
  93                                 GCancellable  *cancellable,
  94                                 GError       **error);
  95
  96 G_END_DECLS
  97
  98
  99 #endif /* __G_INITABLE_H__ */