1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2010 Christian Kellner
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.
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.
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
20 * Author: Christian Kellner <gicmo@gnome.org>
24 #include "gfiledescriptorbased.h"
29 * SECTION:gfiledescriptorbased
30 * @short_description: Interface for file descriptor based IO
31 * @include: gio/gfiledescriptorbased.h
32 * @see_also: #GInputStream, #GOutputStream
34 * #GFileDescriptorBased is implemented by streams (implementations of
35 * #GInputStream or #GOutputStream) that are based on file descriptors.
37 * Note that <filename><gio/gfiledescriptorbased.h></filename> belongs to
38 * the UNIX-specific GIO interfaces, thus you have to use the
39 * <filename>gio-unix-2.0.pc</filename> pkg-config file when using it.
45 typedef GFileDescriptorBasedIface GFileDescriptorBasedInterface;
46 G_DEFINE_INTERFACE (GFileDescriptorBased, g_file_descriptor_based, G_TYPE_OBJECT)
49 g_file_descriptor_based_default_init (GFileDescriptorBasedInterface *iface)
54 * g_file_descriptor_based_get_fd:
55 * @fd_based: a #GFileDescriptorBased.
57 * Gets the underlying file descriptor.
59 * Returns: The file descriptor
64 g_file_descriptor_based_get_fd (GFileDescriptorBased *fd_based)
66 GFileDescriptorBasedIface *iface;
68 g_return_val_if_fail (G_IS_FILE_DESCRIPTOR_BASED (fd_based), 0);
70 iface = G_FILE_DESCRIPTOR_BASED_GET_IFACE (fd_based);
72 return (* iface->get_fd) (fd_based);