1  /* GIO - GLib Input, Output and Streaming Library
       2   *
       3   * Copyright (C) 2010 Christian Kellner
       4   *
       5   * SPDX-License-Identifier: LGPL-2.1-or-later
       6   *
       7   * This library is free software; you can redistribute it and/or
       8   * modify it under the terms of the GNU Lesser General Public
       9   * License as published by the Free Software Foundation; either
      10   * version 2.1 of the License, or (at your option) any later version.
      11   *
      12   * This library is distributed in the hope that it will be useful,
      13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15   * Lesser General Public License for more details.
      16   *
      17   * You should have received a copy of the GNU Lesser General
      18   * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19   *
      20   * Author: Christian Kellner <gicmo@gnome.org>
      21   */
      22  
      23  #ifndef __G_FILE_DESCRIPTOR_BASED_H__
      24  #define __G_FILE_DESCRIPTOR_BASED_H__
      25  
      26  #include <gio/gio.h>
      27  
      28  G_BEGIN_DECLS
      29  
      30  #define G_TYPE_FILE_DESCRIPTOR_BASED            (g_file_descriptor_based_get_type ())
      31  #define G_FILE_DESCRIPTOR_BASED(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), G_TYPE_FILE_DESCRIPTOR_BASED, GFileDescriptorBased))
      32  #define G_IS_FILE_DESCRIPTOR_BASED(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), G_TYPE_FILE_DESCRIPTOR_BASED))
      33  #define G_FILE_DESCRIPTOR_BASED_GET_IFACE(obj)  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_FILE_DESCRIPTOR_BASED, GFileDescriptorBasedIface))
      34  G_DEFINE_AUTOPTR_CLEANUP_FUNC(GFileDescriptorBased, g_object_unref)
      35  
      36  typedef struct _GFileDescriptorBasedIface   GFileDescriptorBasedIface;
      37  
      38  /**
      39   * GFileDescriptorBasedIface:
      40   * @g_iface: The parent interface.
      41   * @get_fd: Gets the underlying file descriptor.
      42   *
      43   * An interface for file descriptor based io objects.
      44   **/
      45  struct _GFileDescriptorBasedIface
      46  {
      47    GTypeInterface g_iface;
      48  
      49    /* Virtual Table */
      50    int (*get_fd) (GFileDescriptorBased *fd_based);
      51  };
      52  
      53  GIO_AVAILABLE_IN_ALL
      54  GType    g_file_descriptor_based_get_type     (void) G_GNUC_CONST;
      55  
      56  GIO_AVAILABLE_IN_ALL
      57  int      g_file_descriptor_based_get_fd       (GFileDescriptorBased *fd_based);
      58  
      59  G_END_DECLS
      60  
      61  
      62  #endif /* __G_FILE_DESCRIPTOR_BASED_H__ */