minor fixes in UHelper.h

conf/libuniset2.spec

@@ -19,7 +19,7 @@
 
 Name: libuniset2
 Version: 2.7
-Release: alt10
+Release: alt11
 Summary: UniSet - library for building distributed industrial control systems
 
 License: LGPL
@@ -540,6 +540,9 @@ rm -f %buildroot%_libdir/*.la
 # history of current unpublished changes
 
 %changelog
+* Sat Jun 09 2018 Pavel Vainerman <pv@altlinux.ru> 2.7-alt11
+- PostgreSQL: extended the interface
+
 * Thu May 24 2018 Pavel Vainerman <pv@altlinux.ru> 2.7-alt10
 - fix pack opentsdb backend
 

extensions/DBServer-PostgreSQL/DBServer_PostgreSQL.cc

@@ -222,7 +222,7 @@ void DBServer_PostgreSQL::flushInsertBuffer()
 
 	dbinfo << myname << "(flushInsertBuffer): write insert buffer[" << ibufSize << "] to DB.." << endl;
 
-	if( !db->copy("main_history", tblcols, ibuf) )
+	if( !writeBufferToDB("main_history", tblcols, ibuf) )
 	{
 		dbcrit << myname << "(flushInsertBuffer): error: " << db->error() << endl;
 	}
@@ -233,6 +233,13 @@ void DBServer_PostgreSQL::flushInsertBuffer()
 	}
 }
 //--------------------------------------------------------------------------------------------
+bool DBServer_PostgreSQL::writeBufferToDB( const std::string& tableName
+		, const std::vector<std::string>& colNames
+		, DBServer_PostgreSQL::InsertBuffer& wbuf )
+{
+	return db->copy(tableName, colNames, wbuf);
+}
+//--------------------------------------------------------------------------------------------
 void DBServer_PostgreSQL::sensorInfo( const uniset::SensorMessage* si )
 {
 	try

extensions/DBServer-PostgreSQL/DBServer_PostgreSQL.h

@@ -129,6 +129,10 @@ namespace uniset
 			size_t ibufMaxSize = { 2000 };
 			timeout_t ibufSyncTimeout = { 15000 };
 			void flushInsertBuffer();
+			virtual bool writeBufferToDB( const std::string& table
+										  , const std::vector<std::string>& colname
+										  , InsertBuffer& ibuf );
+
 			float ibufOverflowCleanFactor = { 0.5 }; // коэфициент {0...1} чистки буфера при переполнении
 
 		private:

include/UHelpers.h

@@ -18,6 +18,7 @@
 #define UHelpers_H_
 // --------------------------------------------------------------------------
 #include "UniSetTypes.h"
+#include "Exceptions.h"
 #include "Configuration.h"
 // --------------------------------------------------------------------------
 namespace uniset