1  /* GIO - GLib Input, Output and Streaming Library
       2   *
       3   * Copyright (C) 2006-2007 Red Hat, Inc.
       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: Alexander Larsson <alexl@redhat.com>
      21   */
      22  
      23  #ifndef __G_FILE_INPUT_STREAM_H__
      24  #define __G_FILE_INPUT_STREAM_H__
      25  
      26  #if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
      27  #error "Only <gio/gio.h> can be included directly."
      28  #endif
      29  
      30  #include <gio/ginputstream.h>
      31  
      32  G_BEGIN_DECLS
      33  
      34  #define G_TYPE_FILE_INPUT_STREAM         (g_file_input_stream_get_type ())
      35  #define G_FILE_INPUT_STREAM(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_FILE_INPUT_STREAM, GFileInputStream))
      36  #define G_FILE_INPUT_STREAM_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_FILE_INPUT_STREAM, GFileInputStreamClass))
      37  #define G_IS_FILE_INPUT_STREAM(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_FILE_INPUT_STREAM))
      38  #define G_IS_FILE_INPUT_STREAM_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_FILE_INPUT_STREAM))
      39  #define G_FILE_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_FILE_INPUT_STREAM, GFileInputStreamClass))
      40  
      41  typedef struct _GFileInputStreamClass    GFileInputStreamClass;
      42  typedef struct _GFileInputStreamPrivate  GFileInputStreamPrivate;
      43  
      44  struct _GFileInputStream
      45  {
      46    GInputStream parent_instance;
      47  
      48    /*< private >*/
      49    GFileInputStreamPrivate *priv;
      50  };
      51  
      52  struct _GFileInputStreamClass
      53  {
      54    GInputStreamClass parent_class;
      55  
      56    goffset     (* tell)              (GFileInputStream     *stream);
      57    gboolean    (* can_seek)          (GFileInputStream     *stream);
      58    gboolean    (* seek)	            (GFileInputStream     *stream,
      59                                       goffset               offset,
      60                                       GSeekType             type,
      61                                       GCancellable         *cancellable,
      62                                       GError              **error);
      63    GFileInfo * (* query_info)        (GFileInputStream     *stream,
      64                                       const char           *attributes,
      65                                       GCancellable         *cancellable,
      66                                       GError              **error);
      67    void        (* query_info_async)  (GFileInputStream     *stream,
      68                                       const char           *attributes,
      69                                       int                   io_priority,
      70                                       GCancellable         *cancellable,
      71                                       GAsyncReadyCallback   callback,
      72                                       gpointer              user_data);
      73    GFileInfo * (* query_info_finish) (GFileInputStream     *stream,
      74                                       GAsyncResult         *result,
      75                                       GError              **error);
      76  
      77    /*< private >*/
      78    /* Padding for future expansion */
      79    void (*_g_reserved1) (void);
      80    void (*_g_reserved2) (void);
      81    void (*_g_reserved3) (void);
      82    void (*_g_reserved4) (void);
      83    void (*_g_reserved5) (void);
      84  };
      85  
      86  GIO_AVAILABLE_IN_ALL
      87  GType      g_file_input_stream_get_type          (void) G_GNUC_CONST;
      88  
      89  GIO_AVAILABLE_IN_ALL
      90  GFileInfo *g_file_input_stream_query_info        (GFileInputStream     *stream,
      91  						  const char           *attributes,
      92  						  GCancellable         *cancellable,
      93  						  GError              **error);
      94  GIO_AVAILABLE_IN_ALL
      95  void       g_file_input_stream_query_info_async  (GFileInputStream     *stream,
      96  						  const char           *attributes,
      97  						  int                   io_priority,
      98  						  GCancellable         *cancellable,
      99  						  GAsyncReadyCallback   callback,
     100  						  gpointer              user_data);
     101  GIO_AVAILABLE_IN_ALL
     102  GFileInfo *g_file_input_stream_query_info_finish (GFileInputStream     *stream,
     103  						  GAsyncResult         *result,
     104  						  GError              **error);
     105  
     106  G_END_DECLS
     107  
     108  #endif /* __G_FILE_FILE_INPUT_STREAM_H__ */