/* GIO - GLib Input, Output and Streaming Library

 *

 * Copyright (C) 2006-2007 Red Hat, Inc.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General

 * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.

 *

 * Author: Alexander Larsson <alexl@redhat.com>

 */

#ifndef __G_FILE_INPUT_STREAM_H__

#define __G_FILE_INPUT_STREAM_H__

#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)

#error "Only <gio/gio.h> can be included directly."

#endif

#include <gio/ginputstream.h>

G_BEGIN_DECLS

#define G_TYPE_FILE_INPUT_STREAM         (g_file_input_stream_get_type ())

#define G_FILE_INPUT_STREAM(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_FILE_INPUT_STREAM, GFileInputStream))

#define G_FILE_INPUT_STREAM_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_FILE_INPUT_STREAM, GFileInputStreamClass))

#define G_IS_FILE_INPUT_STREAM(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_FILE_INPUT_STREAM))

#define G_IS_FILE_INPUT_STREAM_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_FILE_INPUT_STREAM))

#define G_FILE_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_FILE_INPUT_STREAM, GFileInputStreamClass))

/**

 * GFileInputStream:

 *

 * A subclass of GInputStream for opened files. This adds

 * a few file-specific operations and seeking.

 *

 * #GFileInputStream implements #GSeekable.

 **/

typedef struct _GFileInputStreamClass    GFileInputStreamClass;

typedef struct _GFileInputStreamPrivate  GFileInputStreamPrivate;

struct _GFileInputStream

{

  GInputStream parent_instance;

  /*< private >*/

  GFileInputStreamPrivate *priv;

};

struct _GFileInputStreamClass

{

  GInputStreamClass parent_class;

  goffset     (* tell)              (GFileInputStream     *stream);

  gboolean    (* can_seek)          (GFileInputStream     *stream);

  gboolean    (* seek)	            (GFileInputStream     *stream,

                                     goffset               offset,

                                     GSeekType             type,

                                     GCancellable         *cancellable,

                                     GError              **error);

  GFileInfo * (* query_info)        (GFileInputStream     *stream,

                                     const char           *attributes,

                                     GCancellable         *cancellable,

                                     GError              **error);

  void        (* query_info_async)  (GFileInputStream     *stream,

                                     const char           *attributes,

                                     int                   io_priority,

                                     GCancellable         *cancellable,

                                     GAsyncReadyCallback   callback,

                                     gpointer              user_data);

  GFileInfo * (* query_info_finish) (GFileInputStream     *stream,

                                     GAsyncResult         *result,

                                     GError              **error);

  /*< private >*/

  /* Padding for future expansion */

  void (*_g_reserved1) (void);

  void (*_g_reserved2) (void);

  void (*_g_reserved3) (void);

  void (*_g_reserved4) (void);

  void (*_g_reserved5) (void);

};

GLIB_AVAILABLE_IN_ALL

GType      g_file_input_stream_get_type          (void) G_GNUC_CONST;

GLIB_AVAILABLE_IN_ALL

GFileInfo *g_file_input_stream_query_info        (GFileInputStream     *stream,

						  const char           *attributes,

						  GCancellable         *cancellable,

						  GError              **error);

GLIB_AVAILABLE_IN_ALL

void       g_file_input_stream_query_info_async  (GFileInputStream     *stream,

						  const char           *attributes,

						  int                   io_priority,

						  GCancellable         *cancellable,

						  GAsyncReadyCallback   callback,

						  gpointer              user_data);

GLIB_AVAILABLE_IN_ALL

GFileInfo *g_file_input_stream_query_info_finish (GFileInputStream     *stream,

						  GAsyncResult         *result,

						  GError              **error);

G_END_DECLS

#endif /* __G_FILE_FILE_INPUT_STREAM_H__ */