Mike Jumper created GUACAMOLE-2084:
--------------------------------------
Summary: "guac_display" may fail to send "sync" for frames
consisting only of rects
Key: GUACAMOLE-2084
URL: https://issues.apache.org/jira/browse/GUACAMOLE-2084
Project: Guacamole
Issue Type: Bug
Components: libguac
Affects Versions: 1.6.0
Reporter: Mike Jumper
Fix For: 1.6.0
{{guac_display}} relies on the worker threads to send the final frame {{sync}}
instruction (the last thread to send anything also sends the final {{sync}}),
but since the worker threads are only used for image encoding, a frame that
contains no images at all will be missing its {{sync}}.
This would be true of any update that consists only of a single colored
rectangle, as guac_display optimizes these into a pair of {{rect}} and
{{cfill}} to avoid sending image data. Closing a window over a solid black
background would produce exactly such an update.
See: https://lists.apache.org/thread/fxmp86kn216nyswo5dj0koq5h97ypbky
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
