X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fdatasnapshot.h;h=2a6651e89ed85df6cd8bd238fb84c46cddd6aecd;hb=4104d7f3fab3ab5422e7ceb9fdb40b944ca0ba92;hp=221ebcd369ad1af839d4f2ffb0f6161035779f8f;hpb=51e77110d4316fd0106f8306f5e1f0523c5bf7d7;p=pulseview.git

diff --git a/pv/datasnapshot.h b/pv/datasnapshot.h
index 221ebcd..2a6651e 100644
--- a/pv/datasnapshot.h
+++ b/pv/datasnapshot.h
@@ -18,10 +18,15 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#ifndef PULSEVIEW_PV_DATASNAPSHOT_H
+#define PULSEVIEW_PV_DATASNAPSHOT_H
+
 extern "C" {
 #include <libsigrok/libsigrok.h>
 }
 
+#include <boost/thread.hpp>
+
 namespace pv {
 
 class DataSnapshot
@@ -37,9 +42,12 @@ protected:
 	void append_data(void *data, uint64_t samples);
 
 protected:
+	mutable boost::recursive_mutex _mutex;
 	void *_data;
 	uint64_t _sample_count;
 	int _unit_size;
 };
 
 } // namespace pv
+
+#endif // PULSEVIEW_PV_DATASNAPSHOT_H