When updating the full-screen data, sq_ init() will clear the updqueue and add just one new full-screen data to the updqueue. So when the vnc_updater thread is awakened, it may read a null data due to multiple reading, leading to vnc_updater thread exited , which is not expected.
Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
`vnc_remove_queue` would waiting for new frame update request forever
even if the connection is lost, the updater thread wouldn't exit.
But the server thread will join updater thread before accept new client
connection, then we can't re-conncet to vnc server.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
