On Tue, 2019-01-08 at 16:28 +0100, Lukáš Hrázký wrote:
> Sends the device address and device display IDs to the vdagent. The
> message is sent either in reaction to the SPICE_MSGC_MAIN_AGENT_START
> message or when the graphics device info changes.
>
> TODO: doesn't resend the message on agent reconnect, FIXIT.
>
> Signed-off-by: Lukáš Hrázký <lhrazky@xxxxxxxxxx>
> ---
> server/red-qxl.c | 20 +++++++++++++
> server/red-qxl.h | 3 ++
> server/reds-private.h | 1 +
> server/reds.c | 67
> +++++++++++++++++++++++++++++++++++++++++++
> server/reds.h | 1 +
> 5 files changed, 92 insertions(+)
>
> diff --git a/server/red-qxl.c b/server/red-qxl.c
> index 6ffd8286..ebc14a46 100644
> --- a/server/red-qxl.c
> +++ b/server/red-qxl.c
> @@ -889,6 +889,26 @@ void spice_qxl_set_device_info(QXLInstance
> *instance,
>
> instance->st->monitors_count = device_display_id_count;
> instance->st->max_monitors = device_display_id_count;
> +
> + reds_send_device_display_info(red_qxl_get_server(instance->st));
> +}
> +
> +const char* red_qxl_get_device_address(const QXLInstance *qxl)
> +{
> + const QXLState *qxl_state = qxl->st;
> + return qxl_state->device_address;
> +}
> +
> +const uint32_t* red_qxl_get_device_display_ids(const QXLInstance
> *qxl)
> +{
> + const QXLState *qxl_state = qxl->st;
> + return qxl_state->device_display_ids;
> +}
> +
> +size_t red_qxl_get_monitors_count(const QXLInstance *qxl)
> +{
> + const QXLState *qxl_state = qxl->st;
> + return qxl_state->monitors_count;
> }
>
> void red_qxl_init(RedsState *reds, QXLInstance *qxl)
> diff --git a/server/red-qxl.h b/server/red-qxl.h
> index 6014d32a..94753948 100644
> --- a/server/red-qxl.h
> +++ b/server/red-qxl.h
> @@ -40,6 +40,9 @@ void red_qxl_put_gl_scanout(QXLInstance *qxl,
> SpiceMsgDisplayGlScanoutUnix *scan
> void red_qxl_gl_draw_async_complete(QXLInstance *qxl);
> int red_qxl_check_qxl_version(QXLInstance *qxl, int major, int
> minor);
> SpiceServer* red_qxl_get_server(QXLState *qxl);
> +const char* red_qxl_get_device_address(const QXLInstance *qxl);
> +const uint32_t* red_qxl_get_device_display_ids(const QXLInstance
> *qxl);
> +size_t red_qxl_get_monitors_count(const QXLInstance *qxl);
>
> /* Wrappers around QXLInterface vfuncs */
> void red_qxl_get_init_info(QXLInstance *qxl, QXLDevInitInfo *info);
> diff --git a/server/reds-private.h b/server/reds-private.h
> index 920edc5c..9dbc7fa9 100644
> --- a/server/reds-private.h
> +++ b/server/reds-private.h
> @@ -81,6 +81,7 @@ struct RedsState {
> SpiceWatch *secure_listen_watch;
> RedCharDeviceVDIPort *agent_dev;
> int pending_mouse_event;
> + bool pending_device_display_info_message;
> GList *clients;
> MainChannel *main_channel;
> InputsChannel *inputs_channel;
> diff --git a/server/reds.c b/server/reds.c
> index cdbb94cb..b85758b6 100644
> --- a/server/reds.c
> +++ b/server/reds.c
> @@ -257,6 +257,7 @@ typedef struct __attribute__ ((__packed__))
> VDInternalBuf {
> VDAgentMessage header;
> union {
> VDAgentMouseState mouse_state;
> + VDAgentGraphicsDeviceInfo graphics_device_info;
> }
> u;
> } VDInternalBuf;
> @@ -894,6 +895,65 @@ static RedPipeItem
> *vdi_port_read_one_msg_from_device(RedCharDevice *self,
> return NULL;
> }
>
> +void reds_send_device_display_info(RedsState *reds)
Personally I think a more consistent name would be better here. When I
see a function called reds_send_*(), my assumption is that it sends a
message to the client (cf. reds_send_mm_time()). But this function
sends to to the agent. The other functions in this file that send
messages to the agent are all named something like reds_handle_* (e.g.
reds_handle_agent_mouse_event()) or reds_on_* (e.g.
reds_on_main_agent_data()). Granted, those functions are responding to
incoming events/messages from the client, so the on_/handle_ names may
make more sense. But I don't think it would be terrible to name this
function something like reds_handle_device_display_info() or
reds_on_new_device_display_info(). Or if you want to keep 'send' in the
name, maybe be more explicit about where it's being sent?
reds_send_device_display_info_to_agent()?
Otherwise seems fine to me.
> +{
> + if (!reds->agent_dev->priv->agent_attached) {
> + return;
> + }
> + g_debug("Sending device display info to the agent:");
> +
> + size_t message_size = sizeof(VDAgentGraphicsDeviceInfo);
> + QXLInstance *qxl;
> + FOREACH_QXL_INSTANCE(reds, qxl) {
> + message_size +=
> + (sizeof(VDAgentDeviceDisplayInfo) +
> strlen(red_qxl_get_device_address(qxl)) + 1) *
> + red_qxl_get_monitors_count(qxl);
> + }
> +
> + RedCharDeviceWriteBuffer *char_dev_buf =
> vdagent_new_write_buffer(reds->agent_dev,
> + VD_AGENT_GRAPHICS_DEVICE_IN
> FO,
> + message_size,
> + true);
> +
> + if (!char_dev_buf) {
> + reds->pending_device_display_info_message = true;
> + return;
> + }
> +
> + VDInternalBuf *internal_buf = (VDInternalBuf *)char_dev_buf-
> >buf;
> + VDAgentGraphicsDeviceInfo *graphics_device_info = &internal_buf-
> >u.graphics_device_info;
> + graphics_device_info->count = 0;
> +
> + VDAgentDeviceDisplayInfo *device_display_info =
> graphics_device_info->device_info;
> + FOREACH_QXL_INSTANCE(reds, qxl) {
> + for (size_t i = 0; i < red_qxl_get_monitors_count(qxl); ++i)
> {
> + device_display_info->channel_id = qxl->id;
> + device_display_info->monitor_id = i;
> + device_display_info->device_display_id =
> red_qxl_get_device_display_ids(qxl)[i];
> +
> + strcpy((char*) device_display_info->device_address,
> red_qxl_get_device_address(qxl));
> +
> + device_display_info->device_address_len =
> + strlen((char*) device_display_info->device_address)
> + 1;
> +
> + g_debug(" channel_id: %u monitor_id: %u,
> device_address: %s, device_display_id: %u",
> + device_display_info->channel_id,
> + device_display_info->monitor_id,
> + device_display_info->device_address,
> + device_display_info->device_display_id);
> +
> + device_display_info = (VDAgentDeviceDisplayInfo*)
> ((char*) device_display_info +
> + sizeof(VDAgentDeviceDisplayInfo) +
> device_display_info->device_address_len);
> +
> + graphics_device_info->count++;
> + }
> + }
> +
> + reds->pending_device_display_info_message = false;
> +
> + red_char_device_write_buffer_add(RED_CHAR_DEVICE(reds-
> >agent_dev), char_dev_buf);
> +}
> +
> /* after calling this, we unref the message, and the ref is in the
> instance side */
> static void vdi_port_send_msg_to_client(RedCharDevice *self,
> RedPipeItem *msg,
> @@ -925,6 +985,11 @@ static void
> vdi_port_on_free_self_token(RedCharDevice *self)
> spice_debug("pending mouse event");
> reds_handle_agent_mouse_event(reds,
> inputs_channel_get_mouse_state(reds->inputs_channel));
> }
> +
> + if (reds->pending_device_display_info_message) {
> + spice_debug("pending device display info message");
> + reds_send_device_display_info(reds);
> + }
> }
>
> static void vdi_port_remove_client(RedCharDevice *self,
> @@ -1062,6 +1127,8 @@ void reds_on_main_agent_start(RedsState *reds,
> MainChannelClient *mcc, uint32_t
> num_tokens);
> }
>
> + reds_send_device_display_info(reds);
> +
> agent_msg_filter_config(&reds->agent_dev->priv->write_filter,
> reds->config->agent_copypaste,
> reds->config->agent_file_xfer,
> reds_use_client_monitors_config(reds));
> diff --git a/server/reds.h b/server/reds.h
> index 9f17a5ec..8260ab5c 100644
> --- a/server/reds.h
> +++ b/server/reds.h
> @@ -50,6 +50,7 @@ gboolean reds_config_get_agent_mouse(const
> RedsState *reds); // used by inputs_c
> int reds_has_vdagent(RedsState *reds); // used by inputs channel
> bool reds_config_get_playback_compression(RedsState *reds); // used
> by playback channel
>
> +void reds_send_device_display_info(RedsState *reds);
> void reds_handle_agent_mouse_event(RedsState *reds, const
> VDAgentMouseState *mouse_state); // used by inputs_channel
>
> GArray* reds_get_renderers(RedsState *reds);
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