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Diffstat (limited to 'gr-uhd/lib/usrp_source_impl.h')
-rw-r--r--gr-uhd/lib/usrp_source_impl.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/gr-uhd/lib/usrp_source_impl.h b/gr-uhd/lib/usrp_source_impl.h
index 58bb21551c..3cfa1aad35 100644
--- a/gr-uhd/lib/usrp_source_impl.h
+++ b/gr-uhd/lib/usrp_source_impl.h
@@ -22,6 +22,7 @@
#include <gnuradio/uhd/usrp_source.h>
#include <uhd/convert.hpp>
+#include <boost/thread/mutex.hpp>
static const pmt::pmt_t TIME_KEY = pmt::string_to_symbol("rx_time");
static const pmt::pmt_t RATE_KEY = pmt::string_to_symbol("rx_rate");
@@ -121,7 +122,7 @@ namespace gr {
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
-
+
private:
::uhd::usrp::multi_usrp::sptr _dev;
const ::uhd::stream_args_t _stream_args;
@@ -142,6 +143,8 @@ namespace gr {
//tag shadows
double _samp_rate;
double _center_freq;
+
+ boost::recursive_mutex d_mutex;
};
} /* namespace uhd */