[PATCH v2 5/5] video-stream: Don't stop a stream associated with gl_draw (v2)

[Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>]

We do not want to stop a stream associated with gl_draw as a result
of timeout because we may not get another opportunity to create a
new stream if the current one gets stopped. However, when the
stream does get stopped for other reasons, we need to clear the
gl_draw_stream pointer associated with the relevant DC.

v2: (suggestions from Frediano)
- Don't stop the stream regardless of whether gl_draw is ongoing
  or not

Cc: Frediano Ziglio <freddy77@xxxxxxxxx>
Cc: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Cc: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>
Cc: Dongwon Kim <dongwon.kim@xxxxxxxxx>
Signed-off-by: Vivek Kasireddy <vivek.kasireddy@xxxxxxxxx>
---
 server/video-stream.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/server/video-stream.cpp b/server/video-stream.cpp
index 18e98108..f2daea09 100644
--- a/server/video-stream.cpp
+++ b/server/video-stream.cpp
@@ -115,6 +115,10 @@ void video_stream_stop(DisplayChannel *display, VideoStream *stream)
         }
         dcc->pipe_add(video_stream_destroy_item_new(stream_agent));
         video_stream_agent_stats_print(stream_agent);
+
+        if (stream == display->priv->gl_draw_stream) {
+            display->priv->gl_draw_stream = nullptr;
+        }
     }
     display->priv->streams_size_total -= stream->width * stream->height;
     ring_remove(&stream->link);
@@ -989,7 +993,8 @@ void video_stream_timeout(DisplayChannel *display)
     while (item) {
         VideoStream *stream = SPICE_CONTAINEROF(item, VideoStream, link);
         item = ring_next(ring, item);
-        if (now >= (stream->last_time + RED_STREAM_TIMEOUT)) {
+        if (now >= (stream->last_time + RED_STREAM_TIMEOUT) &&
+            stream != display->priv->gl_draw_stream) {
             detach_video_stream_gracefully(display, stream, nullptr);
             video_stream_stop(display, stream);
         }
-- 
2.39.2