mirror of https://gitee.com/openkylin/glib2.0.git
123 lines
5.2 KiB
C
123 lines
5.2 KiB
C
/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*
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* Author: Alexander Larsson <alexl@redhat.com>
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*/
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#ifndef __G_FILE_OUTPUT_STREAM_H__
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#define __G_FILE_OUTPUT_STREAM_H__
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#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
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#error "Only <gio/gio.h> can be included directly."
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#endif
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#include <gio/goutputstream.h>
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G_BEGIN_DECLS
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#define G_TYPE_FILE_OUTPUT_STREAM (g_file_output_stream_get_type ())
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#define G_FILE_OUTPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_FILE_OUTPUT_STREAM, GFileOutputStream))
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#define G_FILE_OUTPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_FILE_OUTPUT_STREAM, GFileOutputStreamClass))
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#define G_IS_FILE_OUTPUT_STREAM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_FILE_OUTPUT_STREAM))
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#define G_IS_FILE_OUTPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_FILE_OUTPUT_STREAM))
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#define G_FILE_OUTPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_FILE_OUTPUT_STREAM, GFileOutputStreamClass))
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/**
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* GFileOutputStream:
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*
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* A subclass of GOutputStream for opened files. This adds
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* a few file-specific operations and seeking and truncating.
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*
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* #GFileOutputStream implements GSeekable.
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**/
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typedef struct _GFileOutputStreamClass GFileOutputStreamClass;
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typedef struct _GFileOutputStreamPrivate GFileOutputStreamPrivate;
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struct _GFileOutputStream
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{
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GOutputStream parent_instance;
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/*< private >*/
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GFileOutputStreamPrivate *priv;
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};
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struct _GFileOutputStreamClass
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{
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GOutputStreamClass parent_class;
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goffset (* tell) (GFileOutputStream *stream);
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gboolean (* can_seek) (GFileOutputStream *stream);
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gboolean (* seek) (GFileOutputStream *stream,
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goffset offset,
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GSeekType type,
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GCancellable *cancellable,
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GError **error);
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gboolean (* can_truncate) (GFileOutputStream *stream);
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gboolean (* truncate_fn) (GFileOutputStream *stream,
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goffset size,
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GCancellable *cancellable,
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GError **error);
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GFileInfo * (* query_info) (GFileOutputStream *stream,
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const char *attributes,
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GCancellable *cancellable,
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GError **error);
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void (* query_info_async) (GFileOutputStream *stream,
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const char *attributes,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GFileInfo * (* query_info_finish) (GFileOutputStream *stream,
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GAsyncResult *result,
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GError **error);
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char * (* get_etag) (GFileOutputStream *stream);
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/* Padding for future expansion */
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void (*_g_reserved1) (void);
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void (*_g_reserved2) (void);
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void (*_g_reserved3) (void);
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void (*_g_reserved4) (void);
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void (*_g_reserved5) (void);
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};
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GLIB_AVAILABLE_IN_ALL
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GType g_file_output_stream_get_type (void) G_GNUC_CONST;
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GLIB_AVAILABLE_IN_ALL
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GFileInfo *g_file_output_stream_query_info (GFileOutputStream *stream,
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const char *attributes,
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GCancellable *cancellable,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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void g_file_output_stream_query_info_async (GFileOutputStream *stream,
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const char *attributes,
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int io_priority,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data);
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GLIB_AVAILABLE_IN_ALL
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GFileInfo *g_file_output_stream_query_info_finish (GFileOutputStream *stream,
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GAsyncResult *result,
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GError **error);
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GLIB_AVAILABLE_IN_ALL
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char * g_file_output_stream_get_etag (GFileOutputStream *stream);
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G_END_DECLS
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#endif /* __G_FILE_FILE_OUTPUT_STREAM_H__ */
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