diff options
Diffstat (limited to 'host/lib/usrp/usrp2/io_impl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp2/io_impl.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/host/lib/usrp/usrp2/io_impl.cpp b/host/lib/usrp/usrp2/io_impl.cpp index aa6d15783..c67bd02fd 100644 --- a/host/lib/usrp/usrp2/io_impl.cpp +++ b/host/lib/usrp/usrp2/io_impl.cpp @@ -144,11 +144,13 @@ void usrp2_impl::io_impl::recv_pirate_loop( **********************************************************************/ void usrp2_impl::io_init(void){ //send a small data packet so the usrp2 knows the udp source port - for(size_t i = 0; i < _data_transports.size(); i++){ - managed_send_buffer::sptr send_buff = _data_transports[i]->get_send_buff(); - boost::uint32_t data = htonl(USRP2_INVALID_VRT_HEADER); - memcpy(send_buff->cast<void*>(), &data, sizeof(data)); + BOOST_FOREACH(zero_copy_if::sptr data_transport, _data_transports){ + managed_send_buffer::sptr send_buff = data_transport->get_send_buff(); + static const boost::uint32_t data = htonl(USRP2_INVALID_VRT_HEADER); + std::memcpy(send_buff->cast<void*>(), &data, sizeof(data)); send_buff->commit(sizeof(data)); + //drain the recv buffers (may have junk) + while (data_transport->get_recv_buff().get()){;} } //the number of recv frames is the number for the first transport |