[Spice-devel] [RFC PATCH spice-server v3 04/20] stream-channel: Write a really base channel to implement the streaming
Jonathon Jongsma
jjongsma at redhat.com
Thu Aug 24 17:05:24 UTC 2017
Acked-by: Jonathon Jongsma <jjongsma at redhat.com>
On Wed, 2017-08-23 at 10:14 +0100, Frediano Ziglio wrote:
> Currently only compile, not used and not much sense
>
> Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
> ---
> server/Makefile.am | 2 +
> server/stream-channel.c | 171
> ++++++++++++++++++++++++++++++++++++++++++++++++
> server/stream-channel.h | 53 +++++++++++++++
> 3 files changed, 226 insertions(+)
> create mode 100644 server/stream-channel.c
> create mode 100644 server/stream-channel.h
>
> diff --git a/server/Makefile.am b/server/Makefile.am
> index 495a7a20..e1240425 100644
> --- a/server/Makefile.am
> +++ b/server/Makefile.am
> @@ -164,6 +164,8 @@ libserver_la_SOURCES =
> \
> stat.h \
> stream.c \
> stream.h \
> + stream-channel.c \
> + stream-channel.h \
> stream-device.c \
> sw-canvas.c \
> tree.c \
> diff --git a/server/stream-channel.c b/server/stream-channel.c
> new file mode 100644
> index 00000000..804db77d
> --- /dev/null
> +++ b/server/stream-channel.c
> @@ -0,0 +1,171 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> + Copyright (C) 2017 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/>.
> +*/
> +#ifdef HAVE_CONFIG_H
> +#include <config.h>
> +#endif
> +
> +#include "red-channel-client.h"
> +#include "stream-channel.h"
> +#include "reds.h"
> +#include "common-graphics-channel.h"
> +
> +#define TYPE_STREAM_CHANNEL_CLIENT stream_channel_client_get_type()
> +
> +#define STREAM_CHANNEL_CLIENT(obj) \
> + (G_TYPE_CHECK_INSTANCE_CAST((obj), TYPE_STREAM_CHANNEL_CLIENT,
> StreamChannelClient))
> +#define STREAM_CHANNEL_CLIENT_CLASS(klass) \
> + (G_TYPE_CHECK_CLASS_CAST((klass), TYPE_STREAM_CHANNEL_CLIENT,
> StreamChannelClientClass))
> +#define IS_STREAM_CHANNEL_CLIENT(obj) \
> + (G_TYPE_CHECK_INSTANCE_TYPE((obj), TYPE_STREAM_CHANNEL_CLIENT))
> +#define IS_STREAM_CHANNEL_CLIENT_CLASS(klass) \
> + (G_TYPE_CHECK_CLASS_TYPE((klass), TYPE_STREAM_CHANNEL_CLIENT))
> +#define STREAM_CHANNEL_CLIENT_GET_CLASS(obj) \
> + (G_TYPE_INSTANCE_GET_CLASS((obj), TYPE_STREAM_CHANNEL_CLIENT,
> StreamChannelClientClass))
> +
> +typedef struct StreamChannelClient StreamChannelClient;
> +typedef struct StreamChannelClientClass StreamChannelClientClass;
> +
> +/* we need to inherit from CommonGraphicsChannelClient
> + * to get buffer handling */
> +struct StreamChannelClient {
> + CommonGraphicsChannelClient parent;
> +};
> +
> +struct StreamChannelClientClass {
> + CommonGraphicsChannelClientClass parent_class;
> +};
> +
> +GType stream_channel_client_get_type(void) G_GNUC_CONST;
> +
> +G_DEFINE_TYPE(StreamChannelClient, stream_channel_client,
> TYPE_COMMON_GRAPHICS_CHANNEL_CLIENT)
> +
> +struct StreamChannel {
> + RedChannel parent;
> +};
> +
> +struct StreamChannelClass {
> + RedChannelClass parent_class;
> +};
> +
> +G_DEFINE_TYPE(StreamChannel, stream_channel, RED_TYPE_CHANNEL)
> +
> +static void
> +stream_channel_client_class_init(StreamChannelClientClass *klass)
> +{
> +}
> +
> +static void
> +stream_channel_client_init(StreamChannelClient *client)
> +{
> +}
> +
> +static void
> +stream_channel_client_on_disconnect(RedChannelClient *rcc)
> +{
> +}
> +
> +static StreamChannelClient*
> +stream_channel_client_new(StreamChannel *channel, RedClient *client,
> RedsStream *stream,
> + int mig_target, RedChannelCapabilities
> *caps)
> +{
> + StreamChannelClient *rcc;
> +
> + rcc = g_initable_new(TYPE_STREAM_CHANNEL_CLIENT,
> + NULL, NULL,
> + "channel", channel,
> + "client", client,
> + "stream", stream,
> + "monitor-latency", FALSE,
> + "caps", caps,
> + NULL);
> +
> + return rcc;
> +}
> +
> +static void
> +stream_channel_send_item(RedChannelClient *rcc, RedPipeItem
> *pipe_item)
> +{
> + switch (pipe_item->type) {
> + default:
> + spice_error("invalid pipe item type");
> + }
> +
> + red_channel_client_begin_send_message(rcc);
> +}
> +
> +StreamChannel*
> +stream_channel_new(RedsState *server)
> +{
> + return g_object_new(TYPE_STREAM_CHANNEL,
> + "spice-server", server,
> + "core-interface",
> reds_get_core_interface(server),
> + "channel-type", SPICE_CHANNEL_DISPLAY,
> + // TODO this id should be after all qxl
> devices
> + "id", 1, // TODO proper id
> + "migration-flags", 0,
> + "handle-acks", TRUE, // TODO sure ??
> + NULL);
> +}
> +
> +static void
> +stream_channel_connect(RedChannel *red_channel, RedClient
> *red_client, RedsStream *stream,
> + int migration, RedChannelCapabilities *caps)
> +{
> + StreamChannel *channel = STREAM_CHANNEL(red_channel);
> + StreamChannelClient *client;
> +
> + spice_return_if_fail(stream != NULL);
> +
> + client = stream_channel_client_new(channel, red_client, stream,
> migration, caps);
> + spice_return_if_fail(client != NULL);
> +}
> +
> +static void
> +stream_channel_constructed(GObject *object)
> +{
> + ClientCbs client_cbs = { NULL, };
> + RedChannel *red_channel = RED_CHANNEL(object);
> + RedsState *reds = red_channel_get_server(red_channel);
> +
> + G_OBJECT_CLASS(stream_channel_parent_class)-
> >constructed(object);
> +
> + client_cbs.connect = stream_channel_connect;
> + red_channel_register_client_cbs(red_channel, &client_cbs, NULL);
> +
> + reds_register_channel(reds, red_channel);
> +}
> +
> +static void
> +stream_channel_class_init(StreamChannelClass *klass)
> +{
> + GObjectClass *object_class = G_OBJECT_CLASS(klass);
> + RedChannelClass *channel_class = RED_CHANNEL_CLASS(klass);
> +
> + object_class->constructed = stream_channel_constructed;
> +
> + channel_class->parser =
> spice_get_client_channel_parser(SPICE_CHANNEL_DISPLAY, NULL);
> + channel_class->handle_message =
> red_channel_client_handle_message;
> +
> + channel_class->on_disconnect =
> stream_channel_client_on_disconnect;
> + channel_class->send_item = stream_channel_send_item;
> +}
> +
> +static void
> +stream_channel_init(StreamChannel *channel)
> +{
> +}
> diff --git a/server/stream-channel.h b/server/stream-channel.h
> new file mode 100644
> index 00000000..5691008c
> --- /dev/null
> +++ b/server/stream-channel.h
> @@ -0,0 +1,53 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> + Copyright (C) 2017 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 STREAM_CHANNEL_H_
> +#define STREAM_CHANNEL_H_
> +
> +#include "red-channel.h"
> +
> +G_BEGIN_DECLS
> +
> +/**
> + * This type it's a RedChannel class which implement display
> + * channel with input only by stream.
> + * A pointer to StreamChannel can be converted to a RedChannel.
> + */
> +typedef struct StreamChannel StreamChannel;
> +typedef struct StreamChannelClass StreamChannelClass;
> +
> +#define TYPE_STREAM_CHANNEL stream_channel_get_type()
> +
> +#define STREAM_CHANNEL(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),
> TYPE_STREAM_CHANNEL, StreamChannel))
> +#define STREAM_CHANNEL_CLASS(klass) \
> + (G_TYPE_CHECK_CLASS_CAST((klass), TYPE_STREAM_CHANNEL,
> StreamChannelClass))
> +#define IS_STREAM_CHANNEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),
> TYPE_STREAM_CHANNEL))
> +#define IS_STREAM_CHANNEL_CLASS(klass)
> (G_TYPE_CHECK_CLASS_TYPE((klass), TYPE_STREAM_CHANNEL))
> +#define STREAM_CHANNEL_GET_CLASS(obj) \
> + (G_TYPE_INSTANCE_GET_CLASS((obj), TYPE_STREAM_CHANNEL,
> StreamChannelClass))
> +
> +GType stream_channel_get_type(void) G_GNUC_CONST;
> +
> +/**
> + * Create StreamChannel.
> + */
> +StreamChannel* stream_channel_new(RedsState *server);
> +
> +G_END_DECLS
> +
> +#endif /* STREAM_CHANNEL_H_ */
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