How to cancel an idle connection

[dignifiedquire]

I need to support the following API

• on one thread a connection is made, and switched to idle using wait
• when shutting down gracefully, another thread needs to send a signal to interrupt the idle and shutting down the connection.

Is this possible with the current api and I am missing something, or is there something that needs to be added?

[jonhoo]

Hmm, that's a little tricky to do, but I think it may be possible. Specifically, if you are on a Unix system, you should be able to establish the connection yourself first (using std::net:TcpStream::connect), get another handle to the same connection with try_clone, create an imap::Client from the first handle with new, and then terminate the connection using that second handle from the other thread when appropriate.

[dignifiedquire]

Thanks, started looking into this, and it almost works, but read_greeting is private currently, so I can't fully establish the connection. Any chance that could be switched to be public?

[jonhoo]

Hmm, why do you need read_greeting to be public? Is Client::login not sufficient?

[dignifiedquire]

When I am using my own stream I can not use `connect` or `connect_insecure`, which call the read_greeting. I do call `login` afterwards, but I thought the greeting reading would be still needed

…

On 10. May 2019, 18:27 +0100, Jon Gjengset ***@***.***>, wrote: Hmm, why do you need read_greeting to be public? Is Client::login not sufficient? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[jonhoo]

You should be able to do Client::new(stream).login though, no?

[dignifiedquire]

yes that works 👌