From 11a213877727ee0b32e55b6adfe0b14a714ca843 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Tue, 19 Feb 2013 21:54:30 -0800 Subject: b100: additional flushing when rx streamer created --- host/lib/transport/usb_zero_copy_wrapper.cpp | 8 ++++++++ host/lib/usrp/b100/io_impl.cpp | 4 ++++ 2 files changed, 12 insertions(+) (limited to 'host/lib') diff --git a/host/lib/transport/usb_zero_copy_wrapper.cpp b/host/lib/transport/usb_zero_copy_wrapper.cpp index d04244ca9..ec5667020 100644 --- a/host/lib/transport/usb_zero_copy_wrapper.cpp +++ b/host/lib/transport/usb_zero_copy_wrapper.cpp @@ -176,6 +176,14 @@ public: } managed_recv_buffer::sptr get_recv_buff(double timeout){ + //lazy flush mechanism - negative timeout + if (timeout < 0.0) + { + _last_recv_buff.reset(); + while (_internal_zc->get_recv_buff()){} + return managed_recv_buffer::sptr(); + } + //attempt to get a managed recv buffer if (not _last_recv_buff){ _last_recv_buff = _internal_zc->get_recv_buff(timeout); diff --git a/host/lib/usrp/b100/io_impl.cpp b/host/lib/usrp/b100/io_impl.cpp index 723756dcc..bcf712cd9 100644 --- a/host/lib/usrp/b100/io_impl.cpp +++ b/host/lib/usrp/b100/io_impl.cpp @@ -153,6 +153,10 @@ rx_streamer::sptr b100_impl::get_rx_stream(const uhd::stream_args_t &args_){ id.num_outputs = 1; my_streamer->set_converter(id); + //flush stuff + _data_transport->get_recv_buff(-1.0); //negative flushes!! + _recv_demuxer = recv_packet_demuxer::make(_data_transport, _rx_dsps.size(), B100_RX_SID_BASE); + //bind callbacks for the handler for (size_t chan_i = 0; chan_i < args.channels.size(); chan_i++){ const size_t dsp = args.channels[chan_i]; -- cgit v1.2.3