Return-Path: Message-ID: <557BB36C.3010408@gmail.com> Date: Sat, 13 Jun 2015 06:37:00 +0200 From: Florian Grandel MIME-Version: 1.0 To: Arman Uguray , Marcel Holtmann , Johan Hedberg CC: BlueZ development Subject: Multi-adv patchset assumptions Content-Type: text/plain; charset=utf-8; format=flowed List-ID: Hi guys, as you can see, I now finished the patch set that provides the full multi-adv feature for you to review and try out. I made a few minor extra assumptions about multi-adv implementation details that IMO had not yet been specified in mgmt-api.txt and hopefully do not break backwards compatibility, notably: - I arbitrarily set the default duration to 2 secs. This can of course be set to any other value you prefer. - Switching the LE setting off permanently disables and removes all advertising instances - even if the device remains powered. - Adding an instance while another instance is being advertised will wait for the new instance's scheduled time to first advertise that instance i.e. it may be that one or more other instances will have their turn first (FIFO). If the currently advertised instance is being changed, though, then that instance will be updated immediately. - Removing an advertising instance that is currently being advertised will cancel the instance right away and not wait for it to time out. If there are other remaining advertising instances, then those will go on to advertise instead. - After service discovery or after "set advertising off", instance advertising should re-enter its prior advertising state, i.e. advertise the same instance that has been advertised before, if any. - Whenever an advertising instance is canceled prematurely (set adv, service discovery, etc.) only the remaining duration of the current advertising slot is "lost". The instance will not be deleted and the remaining advertising time (up to the overall timeout) will be advertised as soon as instance advertising is being re-enabled. Most of these assumptions have been documented in mgmt-api.txt, too. You can look at the diff there for easier review. Florian