Subject: Re: [Bluez-devel] Problems while sending and receiving with rfcomm
	sockects
From: Marcel Holtmann <marcel@holtmann.org>
To: "Collin R. Mulliner" <collin@betaversion.net>
Cc: BlueZ Mailing List <bluez-devel@lists.sourceforge.net>
In-Reply-To: <20040601145616.3419c335@coredump>
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	 <1086093267.4702.20.camel@pegasus>  <20040601145616.3419c335@coredump>
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Date: Tue, 01 Jun 2004 16:31:07 +0200

Hi Collin,

> > I never used RFCOMM in a multi-threaded program. Actually I avoid to
> > use threads wherever possible. However sending and receiving at the
> > same time should work. Maybe there is a kernel bug, what version do
> > you use?
> 
> I allways thought one should ONLY use a socket within a single thread
> at the same time. I write my programs in that way that I never call
> read() and write() on a specific socket at the "same time" also I
> only access each socket within a single thread.

this is why we have select() and poll().

> Somehting else: I need a UUID for my application - any hints on where to
> find some information/instructions?

You must create a UUID-128. There was note in the specification about
that, but I can't remember it.

Regards

Marcel


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