gio/gasyncresult.h

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2006-2007 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_ASYNC_RESULT_H__
  22 #define __G_ASYNC_RESULT_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_ASYNC_RESULT            (g_async_result_get_type ())
  33 #define G_ASYNC_RESULT(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_ASYNC_RESULT, GAsyncResult))
  34 #define G_IS_ASYNC_RESULT(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_ASYNC_RESULT))
  35 #define G_ASYNC_RESULT_GET_IFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_ASYNC_RESULT, GAsyncResultIface))
  36
  37 /**
  38  * GAsyncResult:
  39  *
  40  * Holds results information for an asynchronous operation,
  41  * usually passed directly to a asynchronous _finish() operation.
  42  **/
  43 typedef struct _GAsyncResultIface    GAsyncResultIface;
  44
  45
  46 /**
  47  * GAsyncResultIface:
  48  * @g_iface: The parent interface.
  49  * @get_user_data: Gets the user data passed to the callback.
  50  * @get_source_object: Gets the source object that issued the asynchronous operation.
  51  * @is_tagged: Checks if a result is tagged with a particular source.
  52  *
  53  * Interface definition for #GAsyncResult.
  54  **/
  55 struct _GAsyncResultIface
  56 {
  57   GTypeInterface g_iface;
  58
  59   /* Virtual Table */
  60
  61   gpointer  (* get_user_data)     (GAsyncResult *res);
  62   GObject * (* get_source_object) (GAsyncResult *res);
  63
  64   gboolean  (* is_tagged)         (GAsyncResult *res,
  65                                    gpointer      source_tag);
  66 };
  67
  68 GLIB_AVAILABLE_IN_ALL
  69 GType    g_async_result_get_type          (void) G_GNUC_CONST;
  70
  71 GLIB_AVAILABLE_IN_ALL
  72 gpointer g_async_result_get_user_data     (GAsyncResult *res);
  73 GLIB_AVAILABLE_IN_ALL
  74 GObject *g_async_result_get_source_object (GAsyncResult *res);
  75
  76 GLIB_AVAILABLE_IN_2_34
  77 gboolean g_async_result_legacy_propagate_error (GAsyncResult  *res,
  78                                                 GError       **error);
  79 GLIB_AVAILABLE_IN_2_34
  80 gboolean g_async_result_is_tagged              (GAsyncResult  *res,
  81                                                 gpointer       source_tag);
  82
  83 G_END_DECLS
  84
  85 #endif /* __G_ASYNC_RESULT_H__ */