[Winpcap-users] Deadlock on pcap_open_live() ?

[Gianluca Varenni]

Is your application COM based?

Have a nice day
GV

--------------------------------------------------
From: "Dupuit Cyril" <cyrildupuit at hotmail.com>
Sent: Tuesday, March 30, 2010 2:28 PM
To: <winpcap-users at winpcap.org>
Subject: [Winpcap-users] Deadlock on pcap_open_live() ?

> Hello,
> 
> I am developping an application that uses multiple threaded
> environnement on Windows XP.
> 
> One of these threads opens a network interface to count the number of
> packets per second and compute statistics.
> 
> This architecture works fine for a real network interface (ie realteck,
> 3 com, ...) but fails with the first interface (Adapter for generic
> dialup and VPN capture).
> 
> I have made a little change on my code to use the same thread than my
> application.
> The result is good. My application works without deadlok.
> 
> If I resume :
> - Multithreaded :
>     main thread                            Statistic thread
>            -> Do something...                      -> pcap_open_live()
> on the first interface (Adapter for generic dialup and VPN capture)
> 
>  => Result is a deadlock in the pcap_open_live() function. The function
> is blocked.
> 
> - Single threaded :
>    main thread
>         -> pcap_open_live() on the first interface.
>  => Result is an handle on the file openned (no deadlock detected).
> 
> I have tried this solution only on WinPcap 4.1.1. I don't know if this
> problem appears in another version of WinPcap.
> 
> Can you help me ?
> 
> Thank you in adavance,
> 
> Cyril
> 
> _______________________________________________
> Winpcap-users mailing list
> Winpcap-users at winpcap.org
> https://www.winpcap.org/mailman/listinfo/winpcap-users