18.09.2017 14:53, Luiz Augusto von Dentz пишет:
Hi,
On Mon, Sep 18, 2017 at 5:50 AM, Проклов Александр Валерьевич
<ProklovAV@xxxxxxxxxxxxxxxx> wrote:
15.09.2017 16:46, Luiz Augusto von Dentz пишет:
Ive just a set of patches adressing race condition with StartDiscovery
and StopDiscovery, please have a try. Also it is not a good idea to
mix usage of D-Bus with btmgmt, they might not play well together
especially when it comes to discovery.
Thank you, I add "patch v2 adapter: Refactor code around discovery" to
source bluez-5.47 and compile it.
My test results:
1. btmgmt after "find" command NOT set org.bluez.Adapter1 string:Discovering
=1 . But the Discovery process is already running, why he does not do it?
btmgmt not use dbus for managment?
btmgmt uses the kernel management interface not D-Bus, this is why I
said it may not play well with bluetoothd.
2. If i send method StartDiscovery via dbus-send command, i see
org.bluez.Adapter1 string:Discovering =1 status. But I can not stop the
process, method StopDiscovery - has no effect.
The StopDiscovery can only stop discovery started by the client, if
you use btmgmt to start then it can only be stopped by btmgmt.
No i not use btmgmt, I would like to stop the process through Dbus.
My btmgmt example only for show process.
"btmgmt stop-find" - has no effect, in therminal i see:
hci0 type 7 discovering off
hci0 type 7 discovering on
hci0 type 7 discovering off
hci0 type 7 discovering on
hci0 type 7 discovering off
hci0 type 7 discovering on
after btmgmt power off and btmgmt power on
org.bluez.Adapter1 string:Discovering =0
I assume that the method StopDiscovery must completely terminate the process
StartDiscovery, regardless of the way the scan was started (btmgmt,
dbus-send, hcitool, bluetoothctl or more other).
Only if StartDiscovery was initiated by the same D-Bus
connection/process, and in case you are wondering there is proper
support for discovery in bluetoothctl which does use D-Bus to control
the discovery.
Use Dbus from script is difficult, but now, it is not possible to use.
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth"
in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
