Lease Renewal

jcole998 · 2021-04-22, 04:00 PM

I am working with live TV and would like to know how the lease renewal mechanism works. In particular, does this "handshake" involve the device providing live TV? What messages, if any, are exchanged between the NextPVR server and the device?

Tried searching with Bing but got nothing relevant.

Thanks

mvallevand · 2021-04-22, 04:10 PM

It depends on which of the many API's you use. For the general /live API with no timeshifting it is generated by the server and developers and users don't have to worry about it.

Is there a specific question or issue this applies too?

Martin

***sub*** · 2021-04-22, 05:26 PM

(2021-04-22, 04:00 PM)jcole998 Wrote: I am working with live TV and would like to know how the lease renewal mechanism works. In particular, does this "handshake" involve the device providing live TV? What messages, if any, are exchanged between the NextPVR server and the device?

It's effectively just used as a mechanism for the client to regularly tell the server "I'm still using the device". If it doesn't get one of these lease renewals for more than 10 seconds, it assumes something has gone wrong on the client end, and to free up the device (like the client has crashed while streaming live tv, and is no longer in a state where it can explicitly free up the server etc).

jcole998 · 2021-04-22, 06:27 PM

(2021-04-22, 05:26 PM)sub Wrote:
(2021-04-22, 04:00 PM)jcole998 Wrote: I am working with live TV and would like to know how the lease renewal mechanism works. In particular, does this "handshake" involve the device providing live TV? What messages, if any, are exchanged between the NextPVR server and the device?
It's effectively just used as a mechanism for the client to regularly tell the server "I'm still using the device". If it doesn't get one of these lease renewals for more than 10 seconds, it assumes something has gone wrong on the client end, and to free up the device (like the client has crashed while streaming live tv, and is no longer in a state where it can explicitly free up the server etc)

That's makes sense but it only seems to work if the server is operating the device. If the server is not operating the device as with an extra device, how doe the extra device know when the user has stopped watching?

mvallevand · 2021-04-22, 07:30 PM

With an extra you would be more concerned about the expiry then the renewal which again, is why I am wondering what the real reason for this thread is.

Martin

***sub*** · 2021-04-22, 08:47 PM

(2021-04-22, 06:27 PM)jcole998 Wrote: That's makes sense but it only seems to work if the server is operating the device. If the server is not operating the device as with an extra device, how doe the extra device know when the user has stopped watching?

I don't follow what you mean.

jcole998 · 2021-04-23, 03:23 PM

I will post further information after I review how my extra device behaves with more testing which could take a while.

Sorry for the delay but I'd like to be sure I posting accurate data.

Thanks.