1 /* GIO - GLib Input, Output and Streaming Library
3 * Copyright (C) 2006-2007 Red Hat, Inc.
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: Alexander Larsson <alexl@redhat.com>
23 #ifndef __G_FILE_INPUT_STREAM_H__
24 #define __G_FILE_INPUT_STREAM_H__
26 #include <gio/ginputstream.h>
27 #include <gio/gfileinfo.h>
31 #define G_TYPE_FILE_INPUT_STREAM (g_file_input_stream_get_type ())
32 #define G_FILE_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_FILE_INPUT_STREAM, GFileInputStream))
33 #define G_FILE_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_FILE_INPUT_STREAM, GFileInputStreamClass))
34 #define G_IS_FILE_INPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_FILE_INPUT_STREAM))
35 #define G_IS_FILE_INPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_FILE_INPUT_STREAM))
36 #define G_FILE_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_FILE_INPUT_STREAM, GFileInputStreamClass))
41 * A subclass of GInputStream for opened files. This adds
42 * a few file-specific operations and seeking.
44 * #GFileInputStream implements #GSeekable.
46 typedef struct _GFileInputStream GFileInputStream;
47 typedef struct _GFileInputStreamClass GFileInputStreamClass;
48 typedef struct _GFileInputStreamPrivate GFileInputStreamPrivate;
50 struct _GFileInputStream
55 GFileInputStreamPrivate *priv;
58 struct _GFileInputStreamClass
60 GInputStreamClass parent_class;
62 goffset (*tell) (GFileInputStream *stream);
63 gboolean (*can_seek) (GFileInputStream *stream);
64 gboolean (*seek) (GFileInputStream *stream,
67 GCancellable *cancellable,
69 GFileInfo *(*query_info) (GFileInputStream *stream,
71 GCancellable *cancellable,
73 void (*query_info_async) (GFileInputStream *stream,
76 GCancellable *cancellable,
77 GAsyncReadyCallback callback,
79 GFileInfo *(*query_info_finish) (GFileInputStream *stream,
83 /* Padding for future expansion */
84 void (*_g_reserved1) (void);
85 void (*_g_reserved2) (void);
86 void (*_g_reserved3) (void);
87 void (*_g_reserved4) (void);
88 void (*_g_reserved5) (void);
91 GType g_file_input_stream_get_type (void) G_GNUC_CONST;
93 GFileInfo *g_file_input_stream_query_info (GFileInputStream *stream,
95 GCancellable *cancellable,
97 void g_file_input_stream_query_info_async (GFileInputStream *stream,
100 GCancellable *cancellable,
101 GAsyncReadyCallback callback,
103 GFileInfo *g_file_input_stream_query_info_finish (GFileInputStream *stream,
104 GAsyncResult *result,
106 goffset g_file_input_stream_tell (GFileInputStream *stream);
107 gboolean g_file_input_stream_can_seek (GFileInputStream *stream);
108 gboolean g_file_input_stream_seek (GFileInputStream *stream,
111 GCancellable *cancellable,
118 #endif /* __G_FILE_FILE_INPUT_STREAM_H__ */