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_OUTPUT_STREAM_H__
24 #define __G_FILE_OUTPUT_STREAM_H__
26 #include <gio/goutputstream.h>
27 #include <gio/gfileinfo.h>
31 #define G_TYPE_FILE_OUTPUT_STREAM (g_file_output_stream_get_type ())
32 #define G_FILE_OUTPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_FILE_OUTPUT_STREAM, GFileOutputStream))
33 #define G_FILE_OUTPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_FILE_OUTPUT_STREAM, GFileOutputStreamClass))
34 #define G_IS_FILE_OUTPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_FILE_OUTPUT_STREAM))
35 #define G_IS_FILE_OUTPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_FILE_OUTPUT_STREAM))
36 #define G_FILE_OUTPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_FILE_OUTPUT_STREAM, GFileOutputStreamClass))
41 * A subclass of GOutputStream for opened files. This adds
42 * a few file-specific operations and seeking and truncating.
44 * #GFileOutputStream implements GSeekable.
46 typedef struct _GFileOutputStream GFileOutputStream;
47 typedef struct _GFileOutputStreamClass GFileOutputStreamClass;
48 typedef struct _GFileOutputStreamPrivate GFileOutputStreamPrivate;
50 struct _GFileOutputStream
55 GFileOutputStreamPrivate *priv;
58 struct _GFileOutputStreamClass
60 GOutputStreamClass parent_class;
62 goffset (*tell) (GFileOutputStream *stream);
63 gboolean (*can_seek) (GFileOutputStream *stream);
64 gboolean (*seek) (GFileOutputStream *stream,
67 GCancellable *cancellable,
69 gboolean (*can_truncate) (GFileOutputStream *stream);
70 gboolean (*truncate_fn) (GFileOutputStream *stream,
72 GCancellable *cancellable,
74 GFileInfo *(*query_info) (GFileOutputStream *stream,
76 GCancellable *cancellable,
78 void (*query_info_async) (GFileOutputStream *stream,
81 GCancellable *cancellable,
82 GAsyncReadyCallback callback,
84 GFileInfo *(*query_info_finish) (GFileOutputStream *stream,
87 char *(*get_etag) (GFileOutputStream *stream);
89 /* Padding for future expansion */
90 void (*_g_reserved1) (void);
91 void (*_g_reserved2) (void);
92 void (*_g_reserved3) (void);
93 void (*_g_reserved4) (void);
94 void (*_g_reserved5) (void);
97 GType g_file_output_stream_get_type (void) G_GNUC_CONST;
100 GFileInfo *g_file_output_stream_query_info (GFileOutputStream *stream,
102 GCancellable *cancellable,
104 void g_file_output_stream_query_info_async (GFileOutputStream *stream,
107 GCancellable *cancellable,
108 GAsyncReadyCallback callback,
110 GFileInfo *g_file_output_stream_query_info_finish (GFileOutputStream *stream,
111 GAsyncResult *result,
113 char * g_file_output_stream_get_etag (GFileOutputStream *stream);
114 goffset g_file_output_stream_tell (GFileOutputStream *stream);
115 gboolean g_file_output_stream_can_seek (GFileOutputStream *stream);
116 gboolean g_file_output_stream_seek (GFileOutputStream *stream,
119 GCancellable *cancellable,
121 gboolean g_file_output_stream_can_truncate (GFileOutputStream *stream);
122 gboolean g_file_output_stream_truncate (GFileOutputStream *stream,
124 GCancellable *cancellable,
129 #endif /* __G_FILE_FILE_OUTPUT_STREAM_H__ */