gbufferedinputstream.h

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/* GIO - GLib Input, Output and Streaming Library
 *
 * Copyright (C) 2006-2007 Red Hat, Inc.
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
 *
 * 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: Christian Kellner <gicmo@gnome.org>
 */
 
#ifndef __G_BUFFERED_INPUT_STREAM_H__
#define __G_BUFFERED_INPUT_STREAM_H__
 
#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
#error "Only <gio/gio.h> can be included directly."
#endif
 
#include <gio/gfilterinputstream.h>
 
G_BEGIN_DECLS
 
#define G_TYPE_BUFFERED_INPUT_STREAM         (g_buffered_input_stream_get_type ())
#define G_BUFFERED_INPUT_STREAM(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_BUFFERED_INPUT_STREAM, GBufferedInputStream))
#define G_BUFFERED_INPUT_STREAM_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_BUFFERED_INPUT_STREAM, GBufferedInputStreamClass))
#define G_IS_BUFFERED_INPUT_STREAM(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_BUFFERED_INPUT_STREAM))
#define G_IS_BUFFERED_INPUT_STREAM_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_BUFFERED_INPUT_STREAM))
#define G_BUFFERED_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_BUFFERED_INPUT_STREAM, GBufferedInputStreamClass))
 
typedef struct _GBufferedInputStreamClass    GBufferedInputStreamClass;
typedef struct _GBufferedInputStreamPrivate  GBufferedInputStreamPrivate;
 
struct _GBufferedInputStream
{
  GFilterInputStream parent_instance;
 
  /*< private >*/
  GBufferedInputStreamPrivate *priv;
};
 
struct _GBufferedInputStreamClass
{
  GFilterInputStreamClass parent_class;
 
  gssize   (* fill)        (GBufferedInputStream *stream,
                gssize                count,
                GCancellable         *cancellable,
                GError              **error);
 
  /* Async ops: (optional in derived classes) */
  void     (* fill_async)  (GBufferedInputStream *stream,
                gssize                count,
                int                   io_priority,
                GCancellable         *cancellable,
                GAsyncReadyCallback   callback,
                gpointer              user_data);
  gssize   (* fill_finish) (GBufferedInputStream *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);
};
 
 
GIO_AVAILABLE_IN_ALL
GType         g_buffered_input_stream_get_type        (void) G_GNUC_CONST;
GIO_AVAILABLE_IN_ALL
GInputStream* g_buffered_input_stream_new             (GInputStream          *base_stream);
GIO_AVAILABLE_IN_ALL
GInputStream* g_buffered_input_stream_new_sized       (GInputStream          *base_stream,
                               gsize                  size);
 
GIO_AVAILABLE_IN_ALL
gsize         g_buffered_input_stream_get_buffer_size (GBufferedInputStream  *stream);
GIO_AVAILABLE_IN_ALL
void          g_buffered_input_stream_set_buffer_size (GBufferedInputStream  *stream,
                               gsize                  size);
GIO_AVAILABLE_IN_ALL
gsize         g_buffered_input_stream_get_available   (GBufferedInputStream  *stream);
GIO_AVAILABLE_IN_ALL
gsize         g_buffered_input_stream_peek            (GBufferedInputStream  *stream,
                               void                  *buffer,
                               gsize                  offset,
                               gsize                  count);
GIO_AVAILABLE_IN_ALL
const void*   g_buffered_input_stream_peek_buffer     (GBufferedInputStream  *stream,
                               gsize                 *count);
 
GIO_AVAILABLE_IN_ALL
gssize        g_buffered_input_stream_fill            (GBufferedInputStream  *stream,
                               gssize                 count,
                               GCancellable          *cancellable,
                               GError               **error);
GIO_AVAILABLE_IN_ALL
void          g_buffered_input_stream_fill_async      (GBufferedInputStream  *stream,
                               gssize                 count,
                               int                    io_priority,
                               GCancellable          *cancellable,
                               GAsyncReadyCallback    callback,
                               gpointer               user_data);
GIO_AVAILABLE_IN_ALL
gssize        g_buffered_input_stream_fill_finish     (GBufferedInputStream  *stream,
                               GAsyncResult          *result,
                               GError               **error);
 
GIO_AVAILABLE_IN_ALL
int           g_buffered_input_stream_read_byte       (GBufferedInputStream  *stream,
                               GCancellable          *cancellable,
                               GError               **error);
 
G_END_DECLS
 
#endif /* __G_BUFFERED_INPUT_STREAM_H__ */