a2576014760

Only when it is set to 0xffff will the connection be disconnected. Other values are fine. Moreover, the definition of LWS_RETRY_CONCEAL_ALWAYS is 0xffff. I guess it might be related to...

I found that in my code secs_since_valid_hangup is secs_since_valid_ping fixed plus 10, and when set to 0xffff, it is reversed, so I should avoid setting the size of secs_since_valid_ping greater...