* #30215: mainbuffer: don't make temporary copies of mainbuffer

Also, disallow copying of mainbuffer since we haven't implemented
a proper move or copy constructor (and there's no need).

daemon/src/audio/mainbuffer.h

@@ -37,6 +37,8 @@
 #include <pthread.h>
 
 #include "audiobuffer.h"
+#include "mainbuffer.h"
+#include "noncopyable.h"
 
 class RingBuffer;
 
@@ -99,6 +101,7 @@ class MainBuffer {
         void dumpInfo();
 
     private:
+        NON_COPYABLE(MainBuffer);
 
         CallIDSet* getCallIDSet(const std::string &call_id);
 

daemon/src/conference.cpp

@@ -93,7 +93,7 @@ void Conference::remove(const std::string &participant_id)
 
 void Conference::bindParticipant(const std::string &participant_id)
 {
-    auto mainBuffer = Manager::instance().getMainBuffer();
+    auto &mainBuffer = Manager::instance().getMainBuffer();
 
     for (const auto &item : participants_) {
         if (participant_id != item)