the begginning

versioning/BRM/load_em.cpp

@@ -0,0 +1,70 @@
+/* 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: load_em.cpp 1823 2013-01-21 14:13:09Z rdempsey $
+ *
+ ****************************************************************************/
+
+/*
+ * Loads state of the BRM data structures from file.
+ *
+ * More detailed description
+ */
+
+#include "IDBPolicy.h"
+#include "brmtypes.h"
+#include "rwlock.h"
+#include "mastersegmenttable.h"
+#include "extentmap.h"
+
+#include <iostream>
+
+using namespace BRM;
+using namespace std;
+
+void usage(char *name)
+{
+	cout << "Usage: " << name << " <prefix>" << endl;
+	exit(1);
+}
+
+int main(int argc, char **argv)
+{
+	ExtentMap em;
+	string prefix;
+
+	if (argc > 2)
+		usage(argv[0]);
+	else if (argc == 2)
+		prefix = argv[1];
+	else
+		prefix = "BRM_state";
+
+	idbdatafile::IDBPolicy::configIDBPolicy();
+
+	try {
+		em.load(prefix);
+		cout << "OK." << endl;
+	}
+	catch (exception &e) {
+		cout << "Load failed." << endl;
+		return 1;
+	}
+
+	return 0;
+}