Re: [PATCH spice-gtk 2/2] Add SpiceVMC GIOStream

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ACK

On Tue, Feb 11, 2014 at 11:26:27AM +0100, Marc-André Lureau wrote:
> This allows to use conveniently GIOStream APIs without caring about
> coroutine and Spice messages details.
> ---
>  gtk/Makefile.am |   2 +
>  gtk/vmcstream.c | 515 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  gtk/vmcstream.h |  81 +++++++++
>  3 files changed, 598 insertions(+)
>  create mode 100644 gtk/vmcstream.c
>  create mode 100644 gtk/vmcstream.h
> 
> diff --git a/gtk/Makefile.am b/gtk/Makefile.am
> index 62afd36..7ceb22f 100644
> --- a/gtk/Makefile.am
> +++ b/gtk/Makefile.am
> @@ -255,6 +255,8 @@ libspice_client_glib_2_0_la_SOURCES =			\
>  	usbutil.c					\
>  	usbutil.h					\
>  	$(USB_ACL_HELPER_SRCS)				\
> +	vmcstream.c					\
> +	vmcstream.h					\
>  							\
>  	decode.h					\
>  	decode-glz.c					\
> diff --git a/gtk/vmcstream.c b/gtk/vmcstream.c
> new file mode 100644
> index 0000000..3d8e0e0
> --- /dev/null
> +++ b/gtk/vmcstream.c
> @@ -0,0 +1,515 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> +  Copyright (C) 2013 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, see <http://www.gnu.org/licenses/>.
> +*/
> +#include <string.h>
> +
> +#include "vmcstream.h"
> +#include "spice-channel-priv.h"
> +#include "gio-coroutine.h"
> +
> +struct _SpiceVmcInputStream
> +{
> +    GInputStream parent_instance;
> +    GSimpleAsyncResult *result;
> +    struct coroutine *coroutine;
> +
> +    SpiceChannel *channel;
> +    gboolean all;
> +    guint8 *buffer;
> +    gsize count;
> +    gsize pos;
> +
> +    GCancellable *cancellable;
> +    gulong cancel_id;
> +};
> +
> +struct _SpiceVmcInputStreamClass
> +{
> +    GInputStreamClass parent_class;
> +};
> +
> +static gssize   spice_vmc_input_stream_read        (GInputStream        *stream,
> +                                                    void                *buffer,
> +                                                    gsize                count,
> +                                                    GCancellable        *cancellable,
> +                                                    GError             **error);
> +static void     spice_vmc_input_stream_read_async  (GInputStream        *stream,
> +                                                    void                *buffer,
> +                                                    gsize                count,
> +                                                    int                  io_priority,
> +                                                    GCancellable        *cancellable,
> +                                                    GAsyncReadyCallback  callback,
> +                                                    gpointer             user_data);
> +static gssize   spice_vmc_input_stream_read_finish (GInputStream        *stream,
> +                                                    GAsyncResult        *result,
> +                                                    GError             **error);
> +static gssize   spice_vmc_input_stream_skip        (GInputStream        *stream,
> +                                                    gsize                count,
> +                                                    GCancellable        *cancellable,
> +                                                    GError             **error);
> +static gboolean spice_vmc_input_stream_close       (GInputStream        *stream,
> +                                                    GCancellable        *cancellable,
> +                                                    GError             **error);
> +
> +G_DEFINE_TYPE(SpiceVmcInputStream, spice_vmc_input_stream, G_TYPE_INPUT_STREAM)
> +
> +
> +static void
> +spice_vmc_input_stream_class_init(SpiceVmcInputStreamClass *klass)
> +{
> +    GInputStreamClass *istream_class;
> +
> +    istream_class = G_INPUT_STREAM_CLASS(klass);
> +    istream_class->read_fn = spice_vmc_input_stream_read;
> +    istream_class->read_async = spice_vmc_input_stream_read_async;
> +    istream_class->read_finish = spice_vmc_input_stream_read_finish;
> +    istream_class->skip = spice_vmc_input_stream_skip;
> +    istream_class->close_fn = spice_vmc_input_stream_close;
> +}
> +
> +static void
> +spice_vmc_input_stream_init(SpiceVmcInputStream *self)
> +{
> +}
> +
> +static SpiceVmcInputStream *
> +spice_vmc_input_stream_new(void)
> +{
> +    SpiceVmcInputStream *self;
> +
> +    self = g_object_new(SPICE_TYPE_VMC_INPUT_STREAM, NULL);
> +
> +    return self;
> +}
> +
> +/* coroutine */
> +/**
> + * Feed a SpiceVmc stream with new data from a coroutine
> + *
> + * The other end will be waiting on read_async() until data is fed
> + * here.
> + */
> +G_GNUC_INTERNAL void
> +spice_vmc_input_stream_co_data(SpiceVmcInputStream *self,
> +                               const gpointer d, gsize size)
> +{
> +    guint8 *data = d;
> +
> +    g_return_if_fail(SPICE_IS_VMC_INPUT_STREAM(self));
> +    g_return_if_fail(self->coroutine == NULL);
> +
> +    self->coroutine = coroutine_self();
> +
> +    while (size > 0) {
> +        SPICE_DEBUG("spicevmc co_data %p", self->result);
> +        if (!self->result)
> +            coroutine_yield(NULL);
> +
> +        g_return_if_fail(self->result != NULL);
> +
> +        gsize min = MIN(self->count, size);
> +        memcpy(self->buffer, data, min);
> +
> +        size -= min;
> +        data += min;
> +
> +        SPICE_DEBUG("spicevmc co_data complete: %" G_GSIZE_FORMAT
> +                    "/%" G_GSIZE_FORMAT, min, self->count);
> +
> +        self->pos += min;
> +        self->buffer += min;
> +
> +        if (self->all && min > 0 && self->pos != self->count)
> +            continue;
> +
> +        g_simple_async_result_set_op_res_gssize(self->result, self->pos);
> +
> +        g_simple_async_result_complete_in_idle(self->result);
> +        g_clear_object(&self->result);
> +        if (self->cancellable) {
> +            g_cancellable_disconnect(self->cancellable, self->cancel_id);
> +            g_clear_object(&self->cancellable);
> +        }
> +    }
> +
> +    self->coroutine = NULL;
> +}
> +
> +static void
> +read_cancelled(GCancellable *cancellable,
> +               gpointer user_data)
> +{
> +    SpiceVmcInputStream *self = SPICE_VMC_INPUT_STREAM(user_data);
> +
> +    SPICE_DEBUG("read cancelled, %p", self->result);
> +    g_simple_async_result_set_error(self->result,
> +                                    G_IO_ERROR, G_IO_ERROR_CANCELLED,
> +                                    "read cancelled");
> +    g_simple_async_result_complete_in_idle(self->result);
> +    g_clear_object(&self->result);
> +    if (self->cancellable) {
> +        g_cancellable_disconnect(self->cancellable, self->cancel_id);
> +        g_clear_object(&self->cancellable);
> +    }
> +}
> +
> +void
> +spice_vmc_input_stream_read_all_async(GInputStream        *stream,
> +                                      void                *buffer,
> +                                      gsize                count,
> +                                      int                  io_priority,
> +                                      GCancellable        *cancellable,
> +                                      GAsyncReadyCallback  callback,
> +                                      gpointer             user_data)
> +{
> +    SpiceVmcInputStream *self = SPICE_VMC_INPUT_STREAM(stream);
> +    GSimpleAsyncResult *result;
> +
> +    /* no concurrent read permitted by ginputstream */
> +    g_return_if_fail(self->result == NULL);
> +    g_return_if_fail(self->cancellable == NULL);
> +    self->all = TRUE;
> +    self->buffer = buffer;
> +    self->count = count;
> +    self->pos = 0;
> +    result = g_simple_async_result_new(G_OBJECT(self),
> +                                       callback,
> +                                       user_data,
> +                                       spice_vmc_input_stream_read_async);
> +    self->result = result;
> +    self->cancellable = g_object_ref(cancellable);
> +    if (cancellable)
> +        self->cancel_id =
> +            g_cancellable_connect(cancellable, G_CALLBACK(read_cancelled), self, NULL);
> +
> +    if (self->coroutine)
> +        coroutine_yieldto(self->coroutine, NULL);
> +}
> +
> +gssize
> +spice_vmc_input_stream_read_all_finish(GInputStream *stream,
> +                                       GAsyncResult *result,
> +                                       GError **error)
> +{
> +    GSimpleAsyncResult *simple;
> +    SpiceVmcInputStream *self = SPICE_VMC_INPUT_STREAM(stream);
> +
> +    g_return_val_if_fail(g_simple_async_result_is_valid(result,
> +                                                        G_OBJECT(self),
> +                                                        spice_vmc_input_stream_read_async),
> +                         -1);
> +
> +    simple = (GSimpleAsyncResult *)result;
> +
> +    if (g_simple_async_result_propagate_error(simple, error))
> +        return -1;
> +
> +    return g_simple_async_result_get_op_res_gssize(simple);
> +}
> +
> +static void
> +spice_vmc_input_stream_read_async(GInputStream        *stream,
> +                                  void                *buffer,
> +                                  gsize                count,
> +                                  int                  io_priority,
> +                                  GCancellable        *cancellable,
> +                                  GAsyncReadyCallback  callback,
> +                                  gpointer             user_data)
> +{
> +    SpiceVmcInputStream *self = SPICE_VMC_INPUT_STREAM(stream);
> +    GSimpleAsyncResult *result;
> +
> +    /* no concurrent read permitted by ginputstream */
> +    g_return_if_fail(self->result == NULL);
> +    g_return_if_fail(self->cancellable == NULL);
> +    self->all = FALSE;
> +    self->buffer = buffer;
> +    self->count = count;
> +    self->pos = 0;
> +    result = g_simple_async_result_new(G_OBJECT(self),
> +                                       callback,
> +                                       user_data,
> +                                       spice_vmc_input_stream_read_async);
> +    self->result = result;
> +    self->cancellable = g_object_ref(cancellable);
> +    if (cancellable)
> +        self->cancel_id =
> +            g_cancellable_connect(cancellable, G_CALLBACK(read_cancelled), self, NULL);
> +
> +    if (self->coroutine)
> +        coroutine_yieldto(self->coroutine, NULL);
> +}
> +
> +static gssize
> +spice_vmc_input_stream_read_finish(GInputStream *stream,
> +                                   GAsyncResult *result,
> +                                   GError **error)
> +{
> +    GSimpleAsyncResult *simple;
> +    SpiceVmcInputStream *self = SPICE_VMC_INPUT_STREAM(stream);
> +
> +    g_return_val_if_fail(g_simple_async_result_is_valid(result,
> +                                                        G_OBJECT(self),
> +                                                        spice_vmc_input_stream_read_async),
> +                         -1);
> +
> +    simple = (GSimpleAsyncResult *)result;
> +
> +    if (g_simple_async_result_propagate_error(simple, error))
> +        return -1;
> +
> +    return g_simple_async_result_get_op_res_gssize(simple);
> +}
> +
> +static gssize
> +spice_vmc_input_stream_read(GInputStream  *stream,
> +                            void          *buffer,
> +                            gsize          count,
> +                            GCancellable  *cancellable,
> +                            GError       **error)
> +{
> +    g_return_val_if_reached(-1);
> +}
> +
> +static gssize
> +spice_vmc_input_stream_skip(GInputStream  *stream,
> +                            gsize          count,
> +                            GCancellable  *cancellable,
> +                            GError       **error)
> +{
> +    g_return_val_if_reached(-1);
> +}
> +
> +static gboolean
> +spice_vmc_input_stream_close(GInputStream  *stream,
> +                             GCancellable  *cancellable,
> +                             GError       **error)
> +{
> +    SPICE_DEBUG("fake close");
> +    return TRUE;
> +}
> +
> +/* OUTPUT */
> +
> +struct _SpiceVmcOutputStream
> +{
> +    GOutputStream parent_instance;
> +
> +    SpiceChannel *channel; /* weak */
> +};
> +
> +struct _SpiceVmcOutputStreamClass
> +{
> +    GOutputStreamClass parent_class;
> +};
> +
> +static gssize   spice_vmc_output_stream_write_fn     (GOutputStream   *stream,
> +                                                      const void      *buffer,
> +                                                      gsize            count,
> +                                                      GCancellable    *cancellable,
> +                                                      GError         **error);
> +static gssize   spice_vmc_output_stream_write_finish (GOutputStream   *stream,
> +                                                      GAsyncResult    *result,
> +                                                      GError         **error);
> +static void     spice_vmc_output_stream_write_async  (GOutputStream   *stream,
> +                                                      const void      *buffer,
> +                                                      gsize            count,
> +                                                      int              io_priority,
> +                                                      GCancellable    *cancellable,
> +                                                      GAsyncReadyCallback callback,
> +                                                      gpointer         user_data);
> +
> +G_DEFINE_TYPE(SpiceVmcOutputStream, spice_vmc_output_stream, G_TYPE_OUTPUT_STREAM)
> +
> +
> +static void
> +spice_vmc_output_stream_class_init(SpiceVmcOutputStreamClass *klass)
> +{
> +    GOutputStreamClass *ostream_class;
> +
> +    ostream_class = G_OUTPUT_STREAM_CLASS(klass);
> +    ostream_class->write_fn = spice_vmc_output_stream_write_fn;
> +    ostream_class->write_async = spice_vmc_output_stream_write_async;
> +    ostream_class->write_finish = spice_vmc_output_stream_write_finish;
> +}
> +
> +static void
> +spice_vmc_output_stream_init(SpiceVmcOutputStream *self)
> +{
> +}
> +
> +static SpiceVmcOutputStream *
> +spice_vmc_output_stream_new(SpiceChannel *channel)
> +{
> +    SpiceVmcOutputStream *self;
> +
> +    self = g_object_new(SPICE_TYPE_VMC_OUTPUT_STREAM, NULL);
> +    self->channel = channel;
> +
> +    return self;
> +}
> +
> +static gssize
> +spice_vmc_output_stream_write_fn(GOutputStream   *stream,
> +                                 const void      *buffer,
> +                                 gsize            count,
> +                                 GCancellable    *cancellable,
> +                                 GError         **error)
> +{
> +    SpiceVmcOutputStream *self = SPICE_VMC_OUTPUT_STREAM(stream);
> +    SpiceMsgOut *msg_out;
> +
> +    msg_out = spice_msg_out_new(SPICE_CHANNEL(self->channel),
> +                                SPICE_MSGC_SPICEVMC_DATA);
> +    spice_marshaller_add(msg_out->marshaller, buffer, count);
> +    spice_msg_out_send(msg_out);
> +
> +    return count;
> +}
> +
> +static gssize
> +spice_vmc_output_stream_write_finish(GOutputStream *stream,
> +                                     GAsyncResult *simple,
> +                                     GError **error)
> +{
> +    SpiceVmcOutputStream *self = SPICE_VMC_OUTPUT_STREAM(stream);
> +    GSimpleAsyncResult *res =
> +        g_simple_async_result_get_op_res_gpointer(G_SIMPLE_ASYNC_RESULT(simple));
> +
> +    SPICE_DEBUG("spicevmc write finish");
> +    return spice_vmc_write_finish(self->channel, G_ASYNC_RESULT(res), error);
> +}
> +
> +static void
> +write_cb(GObject *source_object,
> +         GAsyncResult *res,
> +         gpointer user_data)
> +{
> +    GSimpleAsyncResult *simple = user_data;
> +
> +    g_simple_async_result_set_op_res_gpointer(simple, res, NULL);
> +
> +    g_simple_async_result_complete(simple);
> +    g_object_unref(simple);
> +}
> +
> +static void
> +spice_vmc_output_stream_write_async(GOutputStream *stream,
> +                                    const void *buffer,
> +                                    gsize count,
> +                                    int io_priority,
> +                                    GCancellable *cancellable,
> +                                    GAsyncReadyCallback callback,
> +                                    gpointer user_data)
> +{
> +    SpiceVmcOutputStream *self = SPICE_VMC_OUTPUT_STREAM(stream);
> +    GSimpleAsyncResult *simple;
> +
> +    SPICE_DEBUG("spicevmc write async");
> +    /* an AsyncResult to forward async op to channel */
> +    simple = g_simple_async_result_new(G_OBJECT(self), callback, user_data,
> +                                       spice_vmc_output_stream_write_async);
> +
> +    spice_vmc_write_async(self->channel, buffer, count,
> +                          cancellable, write_cb,
> +                          simple);
> +}
> +
> +/* STREAM */
> +
> +struct _SpiceVmcStream
> +{
> +    GIOStream parent_instance;
> +
> +    SpiceChannel *channel; /* weak */
> +    SpiceVmcInputStream *in;
> +    SpiceVmcOutputStream *out;
> +};
> +
> +struct _SpiceVmcStreamClass
> +{
> +    GIOStreamClass parent_class;
> +};
> +
> +static void            spice_vmc_stream_finalize          (GObject   *object);
> +static GInputStream *  spice_vmc_stream_get_input_stream  (GIOStream *stream);
> +static GOutputStream * spice_vmc_stream_get_output_stream (GIOStream *stream);
> +
> +G_DEFINE_TYPE(SpiceVmcStream, spice_vmc_stream, G_TYPE_IO_STREAM)
> +
> +static void
> +spice_vmc_stream_class_init(SpiceVmcStreamClass *klass)
> +{
> +    GObjectClass *object_class;
> +    GIOStreamClass *iostream_class;
> +
> +    object_class = G_OBJECT_CLASS(klass);
> +    object_class->finalize = spice_vmc_stream_finalize;
> +
> +    iostream_class = G_IO_STREAM_CLASS(klass);
> +    iostream_class->get_input_stream = spice_vmc_stream_get_input_stream;
> +    iostream_class->get_output_stream = spice_vmc_stream_get_output_stream;
> +}
> +
> +static void
> +spice_vmc_stream_finalize(GObject *object)
> +{
> +    SpiceVmcStream *self = SPICE_VMC_STREAM(object);
> +
> +    g_clear_object(&self->in);
> +    g_clear_object(&self->out);
> +
> +    G_OBJECT_CLASS(spice_vmc_stream_parent_class)->finalize(object);
> +}
> +
> +static void
> +spice_vmc_stream_init(SpiceVmcStream *self)
> +{
> +}
> +
> +SpiceVmcStream *
> +spice_vmc_stream_new(SpiceChannel *channel)
> +{
> +    SpiceVmcStream *self;
> +
> +    self = g_object_new(SPICE_TYPE_VMC_STREAM, NULL);
> +    self->channel = channel;
> +
> +    return self;
> +}
> +
> +static GInputStream *
> +spice_vmc_stream_get_input_stream(GIOStream *stream)
> +{
> +    SpiceVmcStream *self = SPICE_VMC_STREAM(stream);
> +
> +    if (!self->in)
> +        self->in = spice_vmc_input_stream_new();
> +
> +    return G_INPUT_STREAM(self->in);
> +}
> +
> +static GOutputStream *
> +spice_vmc_stream_get_output_stream(GIOStream *stream)
> +{
> +    SpiceVmcStream *self = SPICE_VMC_STREAM(stream);
> +
> +    if (!self->out)
> +        self->out = spice_vmc_output_stream_new(self->channel);
> +
> +    return G_OUTPUT_STREAM(self->out);
> +}
> diff --git a/gtk/vmcstream.h b/gtk/vmcstream.h
> new file mode 100644
> index 0000000..1316b77
> --- /dev/null
> +++ b/gtk/vmcstream.h
> @@ -0,0 +1,81 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> +   Copyright (C) 2013 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, see <http://www.gnu.org/licenses/>.
> +*/
> +#ifndef __SPICE_VMC_STREAM_H__
> +#define __SPICE_VMC_STREAM_H__
> +
> +#include <gio/gio.h>
> +
> +#include "spice-types.h"
> +
> +G_BEGIN_DECLS
> +
> +#define SPICE_TYPE_VMC_INPUT_STREAM         (spice_vmc_input_stream_get_type ())
> +#define SPICE_VMC_INPUT_STREAM(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), SPICE_TYPE_VMC_INPUT_STREAM, SpiceVmcInputStream))
> +#define SPICE_VMC_INPUT_STREAM_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), SPICE_TYPE_VMC_INPUT_STREAM, SpiceVmcInputStreamClass))
> +#define SPICE_IS_VMC_INPUT_STREAM(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), SPICE_TYPE_VMC_INPUT_STREAM))
> +#define SPICE_IS_VMC_INPUT_STREAM_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), SPICE_TYPE_VMC_INPUT_STREAM))
> +#define SPICE_VMC_INPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), SPICE_TYPE_VMC_INPUT_STREAM, SpiceVmcInputStreamClass))
> +
> +typedef struct _SpiceVmcInputStreamClass     SpiceVmcInputStreamClass;
> +typedef struct _SpiceVmcInputStream          SpiceVmcInputStream;
> +
> +GType          spice_vmc_input_stream_get_type   (void) G_GNUC_CONST;
> +void           spice_vmc_input_stream_co_data    (SpiceVmcInputStream *input,
> +                                                  const gpointer data,
> +                                                  gsize size);
> +
> +void           spice_vmc_input_stream_read_all_async(GInputStream        *stream,
> +                                                     void                *buffer,
> +                                                     gsize                count,
> +                                                     int                  io_priority,
> +                                                     GCancellable        *cancellable,
> +                                                     GAsyncReadyCallback  callback,
> +                                                     gpointer             user_data);
> +gssize         spice_vmc_input_stream_read_all_finish(GInputStream       *stream,
> +                                                      GAsyncResult       *result,
> +                                                      GError            **error);
> +
> +
> +#define SPICE_TYPE_VMC_OUTPUT_STREAM         (spice_vmc_output_stream_get_type ())
> +#define SPICE_VMC_OUTPUT_STREAM(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), SPICE_TYPE_VMC_OUTPUT_STREAM, SpiceVmcOutputStream))
> +#define SPICE_VMC_OUTPUT_STREAM_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), SPICE_TYPE_VMC_OUTPUT_STREAM, SpiceVmcOutputStreamClass))
> +#define SPICE_IS_VMC_OUTPUT_STREAM(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), SPICE_TYPE_VMC_OUTPUT_STREAM))
> +#define SPICE_IS_VMC_OUTPUT_STREAM_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), SPICE_TYPE_VMC_OUTPUT_STREAM))
> +#define SPICE_VMC_OUTPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), SPICE_TYPE_VMC_OUTPUT_STREAM, SpiceVmcOutputStreamClass))
> +
> +typedef struct _SpiceVmcOutputStreamClass     SpiceVmcOutputStreamClass;
> +typedef struct _SpiceVmcOutputStream          SpiceVmcOutputStream;
> +
> +GType           spice_vmc_output_stream_get_type (void) G_GNUC_CONST;
> +
> +#define SPICE_TYPE_VMC_STREAM                (spice_vmc_stream_get_type ())
> +#define SPICE_VMC_STREAM(o)                  (G_TYPE_CHECK_INSTANCE_CAST ((o), SPICE_TYPE_VMC_STREAM, SpiceVmcStream))
> +#define SPICE_VMC_STREAM_CLASS(k)            (G_TYPE_CHECK_CLASS_CAST((k), SPICE_TYPE_VMC_STREAM, SpiceVmcStreamClass))
> +#define SPICE_IS_VMC_STREAM(o)               (G_TYPE_CHECK_INSTANCE_TYPE ((o), SPICE_TYPE_VMC_STREAM))
> +#define SPICE_IS_VMC_STREAM_CLASS(k)         (G_TYPE_CHECK_CLASS_TYPE ((k), SPICE_TYPE_VMC_STREAM))
> +#define SPICE_VMC_STREAM_GET_CLASS(o)        (G_TYPE_INSTANCE_GET_CLASS ((o), SPICE_TYPE_VMC_STREAM, SpiceVmcStreamClass))
> +
> +typedef struct _SpiceVmcStreamClass           SpiceVmcStreamClass;
> +typedef struct _SpiceVmcStream                SpiceVmcStream;
> +
> +GType           spice_vmc_stream_get_type        (void) G_GNUC_CONST;
> +SpiceVmcStream* spice_vmc_stream_new             (SpiceChannel *channel);
> +
> +G_END_DECLS
> +
> +#endif /* __SPICE_VMC_STREAM_H__ */
> -- 
> 1.8.4.2
> 
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