Re: Multiple channels for a single session

[Andreas Schneider <asn@xxxxxxxxxxxxxx>]

On Thursday, July 18, 2019 2:13:59 PM CEST Игорь Коваленко wrote:
> Hello!

Hi Igor,

> I'm developing ssh-server and I need that one session can create two
> channels - one with sftp subsystem and one with shell subsystem.
> These channels have to work simultaneously. Shell subsystem must process
> special commands from user and simultaneously user could transfer files.
> Documentation says "You cannot use a single session (or channels for a
> single session) in several threads at the same time."
> Does this mean that I need to do tasks for both of my channels in one
> thread and I need some kind of scheduling between them?

Yes, those channels need to be handled in the same thread. libssh is only 
thread safe on a per session basis. Normally your server should be callback 
based, so they are handled async anyway.

> Or is it better to create different sessions for shell and for sftp tasks?

You don't have to.


	Andreas

-- 
Andreas Schneider                 asn@xxxxxxxxxxxxxx
GPG-ID:     8DFF53E18F2ABC8D8F3C92237EE0FC4DCC014E3D