the begginning

writeengine/wrapper/we_tablemetadata.cpp

@@ -0,0 +1,108 @@
+/* Copyright (C) 2014 InfiniDB, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; version 2 of
+   the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA. */
+
+// $Id$
+//
+/** @file */
+
+#include <cassert>
+#include <limits>
+using namespace std;
+
+#include <boost/thread/thread.hpp>
+#include <boost/thread/mutex.hpp>
+
+#include "we_tablemetadata.h"
+
+namespace WriteEngine
+{
+/*static*/
+boost::mutex TableMetaData::map_mutex;
+/*static*/
+TableMetaData::TableMetaDataMap TableMetaData::fTableMetaDataMap;
+
+
+TableMetaData* TableMetaData::makeTableMetaData(uint32_t tableOid)
+{
+	boost::mutex::scoped_lock lock(map_mutex);
+	TableMetaData* instance;
+    TableMetaDataMap::const_iterator it = fTableMetaDataMap.find(tableOid);
+    if (it == fTableMetaDataMap.end())
+	{		
+		instance = new TableMetaData();
+		fTableMetaDataMap[tableOid] = instance;
+		return instance;
+	}
+    return it->second;    
+}
+
+/* static */
+void TableMetaData::removeTableMetaData(uint32_t tableOid)
+{
+    boost::mutex::scoped_lock lock(map_mutex);
+    TableMetaDataMap::iterator it = fTableMetaDataMap.find(tableOid);
+    if (it != fTableMetaDataMap.end())
+    {
+        delete (*it).second;
+        fTableMetaDataMap.erase(it);
+    }    
+}
+
+TableMetaData::TableMetaData()
+{
+}
+TableMetaData::~TableMetaData()
+{
+}
+
+ColExtsInfo & TableMetaData::getColExtsInfo (OID columnOid)
+{
+	boost::mutex::scoped_lock lock(fColsExtsInfoLock);
+	ColsExtsInfoMap::iterator it = fColsExtsInfoMap.find(columnOid);
+    if (it != fColsExtsInfoMap.end())
+	{
+		return it->second;
+	}
+	else
+	{
+		ColExtsInfo colExtsInfo;
+		fColsExtsInfoMap[columnOid] = colExtsInfo;
+		return fColsExtsInfoMap[columnOid];
+	}
+}
+
+void TableMetaData::setColExtsInfo (OID columnOid, ColExtsInfo colExtsInfo)
+{
+	boost::mutex::scoped_lock lock(fColsExtsInfoLock);
+	ColsExtsInfoMap::iterator it = fColsExtsInfoMap.find(columnOid);
+    if (it != fColsExtsInfoMap.end())
+	{
+		it->second = colExtsInfo;
+	}
+	else
+	{
+		fColsExtsInfoMap[columnOid] = colExtsInfo;
+	}
+}
+
+ColsExtsInfoMap& TableMetaData::getColsExtsInfoMap()
+{
+	boost::mutex::scoped_lock lock(fColsExtsInfoLock);
+	return fColsExtsInfoMap;
+}
+} //end of namespace
+// vim:ts=4 sw=4: