X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fpopups%2Fchannels.cpp;h=ee0daedf4b1035f76c6d6346dc9a59616be8db49;hb=2a21747e9daac2a45cd9a5ceb9a351f9775c5704;hp=9afc3b48952754047eecce46b3f7aefb2630beb8;hpb=c3a740dd5d095eb1cdf42e00df4d5a5c480ac5b3;p=pulseview.git

diff --git a/pv/popups/channels.cpp b/pv/popups/channels.cpp
index 9afc3b48..ee0daedf 100644
--- a/pv/popups/channels.cpp
+++ b/pv/popups/channels.cpp
@@ -35,6 +35,8 @@
 
 using namespace Qt;
 
+using boost::shared_lock;
+using boost::shared_mutex;
 using std::lock_guard;
 using std::map;
 using std::mutex;
@@ -68,7 +70,7 @@ Channels::Channels(SigSession &session, QWidget *parent) :
 	// Collect a set of signals
 	map<shared_ptr<Channel>, shared_ptr<Signal> > signal_map;
 
-	lock_guard<mutex> lock(_session.signals_mutex());
+	shared_lock<shared_mutex> lock(_session.signals_mutex());
 	const vector< shared_ptr<Signal> > &sigs(_session.signals());
 
 	for (const shared_ptr<Signal> &sig : sigs)