Question: How to keep alive websocket sptr session without activity

[fsmoke]

Hi.

I am writing notification server. Every client connects to server just to handle some notifications. So there is no any read-write work to keep sptr of my session, just rare async_write operations.

What async operation i must to do for fill the wasted time between async_writes?

May be async_ping or pong, I don't really know much about what's under the hood of websockes.

But i cannot find any explicit examples about ping-pong in beast docs.

Can anyone helps me?

[ashtum]

Hi,
You must always maintain an active async_read operation, as it handles ping/pong operations in the background. You just need to set proper timeout options:
websocket::stream::set_option (2 of 3 overloads)
websocket::stream_base::timeout