From: Marcel Holtmann <marcel@holtmann.org>
To: BlueZ development <bluez-devel@lists.sourceforge.net>
In-Reply-To: <4561DDBE.6040508@idlum.be>
References: <4561DDBE.6040508@idlum.be>
Date: Mon, 20 Nov 2006 18:03:26 +0100
Message-Id: <1164042206.28397.36.camel@localhost>
Mime-Version: 1.0
Subject: Re: [Bluez-devel] Extracting full SDP database from device at
	once	using DBus API
Reply-To: BlueZ development <bluez-devel@lists.sourceforge.net>
Content-Type: text/plain; charset="us-ascii"
Sender: bluez-devel-bounces@lists.sourceforge.net
Errors-To: bluez-devel-bounces@lists.sourceforge.net

Hi Pierre-Yves,

> At the moment, to perform a full extraction of the SDP database of a 
> device, I first perform a call to
> 
> array{uint32} GetRemoteServiceHandles(string address, string match)
> 
> with an empty "match" string. It does connect to Public Browse Group, 
> and returns handles for all the ServiceRecords. I then perform a call
> 
> array{byte} GetRemoteServiceRecord(string address, uint32 handle)
> 
> for each of these handles, and I get all the data in binary form ti 
> interpret myself.
> 
> 
> 1) Is it the right way to do this, or is there a way to get that all at 
> once?

that is the way to go.

> 2) As ServiceRecords are extracted "one at a time", is Bluez connecting 
> and disconnecting to the device each time? Is there a performance 
> penalty in doing so? If I understand the output of hcidump well, it does 
> not close he ACL link each time, but there is a L2CAP 
> connection/disconnection for each ServiceRecord.

We should add a disconnect timeout to our SDP session and re-use it, but
that hasn't been done so far.

Regards

Marcel


-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Bluez-devel mailing list
Bluez-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bluez-devel