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From: Fabrizio Guglielmino <guglielmino@infitsrl.com>
Date: Sat, 22 Jul 2006 16:08:08 +0200
To: BlueZ development <bluez-devel@lists.sourceforge.net>
Subject: [Bluez-devel] It's rfcomm connect problem
Reply-To: BlueZ development <bluez-devel@lists.sourceforge.net>
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Hi all,
I made some investigation about the BtOBEX_TransportConnect signaled  
to the list and Marcel some days before.
Openobex isn't involved in the problem, in my try I've writed from  
scatch a simple obex push client (not using openobex but only
socket).
In my test I found this : if there are two thread (also two process)  
making something like

  ...
  ret = connect(fd, (struct sockaddr *)dst, sizeof(struct sockaddr_rd));
  ...

in simultaneous way the second always fail (return -1). I've also  
tryed to "protect" the connect using a mutex and all works
but (naturally) second connection result conditioned to the frist  
(syncronous so thread it is not useful).

I think there is some solution to this but I don't know if it's using  
some ioctl on socket (nonbloking?) or some hci command to adapter.
Please can some one give me some hint?

I'm looking at kernel source related to rfcomm (/usr/src/ 
linux-2.6.116/net/bluetooth/rfcomm/*.c) but I'm not sure the problem  
reside here...


thanks, bye
Fabrizio 

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