Thanks Andy, I will submit a change to remove this set_option from the udp source then.
Geof On Thu, May 19, 2016 at 3:59 PM, Andy Walls <a...@silverblocksystems.net> wrote: > > > > OK, I was able to reproduce the issue, and it appears to me to a core > > GNURadio issue not specifically related to the installer > > > > > > udp_source_impl.cc is setting the SO_LINGER option on the UDP socket, > > which at least on Windows, causes a WSAENOPROTOOPT exception, because > > linger doesn't really mean anything for a UDP socket. > > > > > > Perhaps the Linux folks can help here, but I'm guessing that this > > option must be simply ignored on Linux so there is no error for most > > users. Looking at the man pages doesn't specify any particular > > behavior required. > > > > > > Geof > > > SO_LINGER gets processed by the Linux kernel generically here: > > http://lxr.free-electrons.com/source/net/core/sock.c#L644 > > with no check against socket type. > > The UDP socket handling doesn't use the resulting SOCK_LINGER flag > setting. > http://lxr.free-electrons.com/source/net/ipv4/udp.c > http://lxr.free-electrons.com/source/net/ipv6/udp.c > > Only TCP and the Bluetooth SCO protocol in the Linux kernel care about > SO_LINGER. > > Regards, > Andy > > >
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