Re: [Bluez-devel] What happens with bluetooth when connection is interrupted

Reto Bachmann
2008-09-22T06:08:34Z

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Hi Patryk,

i see the problems and I will change it. I now made some tests and i found
out that the library waits for a specific time until it sends the signal. I
suppose that in this time it tries to repair the connection.

Is it possible to manage this time period with compiling flags or something?

Thanks,
Reto

2008/9/19 Patryk Zawadzki <patrys@pld-linux.org>

> On Fri, Sep 19, 2008 at 8:56 AM, Reto Bachmann <reto.bachmann@gmail.com>
> wrote:
> > So I need to connect the D-Bus signal RemoteDeviceDisconnected to find
> out
> > that I am not connected anymore?
> >
> > Why shouldn't I poll for a status? Is it just because a signal is sent
> > either way or is the status i ask for not the true status?
>
> Because polling is the worst strategy both CPU- and power-wise. It
> causes frequent wakeups that waste power and prevent CPUs from
> entering a deep idle state. They also generate unnecessary traffic for
> the IPC mechanism so if every program decided to poll for something
> once a second, services like DBus would likely get hosed.
>
> --
> Patryk Zawadzki
>
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