the begginning

versioning/BRM/tablelockserver.h

@@ -0,0 +1,69 @@
+/* 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. */
+
+/*
+ * TableLockServer.h
+ *
+ *  Created on: Nov 30, 2011
+ *      Author: pleblanc
+ */
+
+#include "brmtypes.h"
+#include "sessionmanagerserver.h"
+
+#ifndef TABLELOCKSERVER_H_
+#define TABLELOCKSERVER_H_
+
+#if defined(_MSC_VER) && defined(xxxBRMTBLLOCKSVR_DLLEXPORT)
+#define EXPORT __declspec(dllexport)
+#else
+#define EXPORT
+#endif
+
+namespace BRM {
+
+class TableLockServer {
+public:
+	EXPORT TableLockServer(SessionManagerServer *);
+	virtual ~TableLockServer();
+
+	EXPORT uint64_t lock(TableLockInfo *);
+	EXPORT bool unlock(uint64_t id);
+	EXPORT bool changeState(uint64_t id, LockState state);
+	EXPORT bool changeOwner(uint64_t id, const std::string &ownerName, uint32_t pid, int32_t sessionID,
+			int32_t txnID);
+	EXPORT std::vector<TableLockInfo> getAllLocks() const;
+	EXPORT void releaseAllLocks();
+	EXPORT bool getLockInfo(uint64_t id, TableLockInfo *out) const;
+
+private:
+	void load();
+	void save();
+
+	mutable boost::mutex mutex;
+	std::map<uint64_t, TableLockInfo> locks;
+	typedef std::map<uint64_t, TableLockInfo>::iterator lit_t;
+	typedef std::map<uint64_t, TableLockInfo>::const_iterator constlit_t;
+	std::string filename;
+	SessionManagerServer *sms;
+};
+
+}
+
+#undef EXPORT
+
+#endif /* TABLELOCKSERVER_H_ */