/*
 * Copyright (C) 2009,2010 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Red Hat Author(s): Behdad Esfahbod
 */

#include <glib-object.h>
#include <gio/gio.h>

G_BEGIN_DECLS

/*
 * VteStream: Abstract base stream class
 */

struct _VteStream {
    GObject parent;
};

typedef struct _VteStreamClass {
    GObjectClass parent_class;

    void (*reset) (VteStream *stream, gsize offset);
    gboolean (*read) (VteStream *stream, gsize offset, char *data, gsize len);
    void (*append) (VteStream *stream, const char *data, gsize len);
    void (*truncate) (VteStream *stream, gsize offset);
    void (*advance_tail) (VteStream *stream, gsize offset);
    gsize (*tail) (VteStream *stream);
    gsize (*head) (VteStream *stream);
} VteStreamClass;

static GType _vte_stream_get_type (void);
#define VTE_TYPE_STREAM _vte_stream_get_type ()
#define VTE_STREAM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), VTE_TYPE_STREAM, VteStreamClass))

G_DEFINE_ABSTRACT_TYPE (VteStream, _vte_stream, G_TYPE_OBJECT)

static void _vte_stream_class_init (VteStreamClass *klass G_GNUC_UNUSED)
{
}

static void _vte_stream_init (VteStream *stream G_GNUC_UNUSED)
{
}

void _vte_stream_reset (VteStream *stream, gsize offset)
{
    VTE_STREAM_GET_CLASS (stream)->reset (stream, offset);
}

gboolean _vte_stream_read (VteStream *stream, gsize offset, char *data, gsize len)
{
    return VTE_STREAM_GET_CLASS (stream)->read (stream, offset, data, len);
}

void _vte_stream_append (VteStream *stream, const char *data, gsize len)
{
    VTE_STREAM_GET_CLASS (stream)->append (stream, data, len);
}

void _vte_stream_truncate (VteStream *stream, gsize offset)
{
    VTE_STREAM_GET_CLASS (stream)->truncate (stream, offset);
}

void _vte_stream_advance_tail (VteStream *stream, gsize offset)
{
    VTE_STREAM_GET_CLASS (stream)->advance_tail (stream, offset);
}

gsize _vte_stream_tail (VteStream *stream)
{
    return VTE_STREAM_GET_CLASS (stream)->tail (stream);
}

gsize _vte_stream_head (VteStream *stream)
{
    return VTE_STREAM_GET_CLASS (stream)->head (stream);
}

G_END_DECLS