(unet): init cache refactoring

extensions/UNetUDP/UNetReceiver.cc

@@ -852,7 +852,16 @@ void UNetReceiver::initIterators() noexcept
 // -----------------------------------------------------------------------------
 void UNetReceiver::initDCache( UniSetUDP::UDPMessage& pack, bool force ) noexcept
 {
-	CacheInfo& d_info(d_icache_map[pack.getDataID()]);
+	//	CacheInfo& d_info(d_icache_map[pack.getDataID()]);
+
+	auto c_it = d_icache_map.find(pack.getDataID());
+	if( c_it == d_icache_map.end() )
+	{
+		auto ret = d_icache_map.insert(std::pair<long, CacheInfo>(pack.getDataID(), CacheInfo()));
+		c_it = ret.first;
+	}
+
+	CacheInfo& d_info = c_it->second;
 
 	if( !force && pack.dcount == d_info.cache.size() )
 		return;
@@ -864,8 +873,8 @@ void UNetReceiver::initDCache( UniSetUDP::UDPMessage& pack, bool force ) noexcep
 
 		for( ; it != d_icache_map.end(); ++it )
 		{
-			CacheInfo& d_info(it->second);
-			d_cache_init_ok = d_cache_init_ok && d_info.cache_init_ok;
+			CacheInfo& d_info2(it->second);
+			d_cache_init_ok = d_cache_init_ok && d_info2.cache_init_ok;
 
 			if(d_cache_init_ok == false)
 				break;
@@ -896,7 +905,16 @@ void UNetReceiver::initDCache( UniSetUDP::UDPMessage& pack, bool force ) noexcep
 // -----------------------------------------------------------------------------
 void UNetReceiver::initACache( UniSetUDP::UDPMessage& pack, bool force ) noexcept
 {
-	CacheInfo& a_info(a_icache_map[pack.getDataID()]);
+//	CacheInfo& a_info(a_icache_map[pack.getDataID()]);
+
+	auto c_it = a_icache_map.find(pack.getDataID());
+	if( c_it == a_icache_map.end() )
+	{
+		auto ret = a_icache_map.insert(std::pair<long, CacheInfo>(pack.getDataID(), CacheInfo()));
+		c_it = ret.first;
+	}
+
+	CacheInfo& a_info = c_it->second;
 
 	if( !force && pack.acount == a_info.cache.size() )
 		return;