the begginning

utils/startup/installdir.cpp

@@ -0,0 +1,71 @@
+/* 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. */
+
+/******************************************************************************************
+* $Id$
+*
+******************************************************************************************/
+#include <unistd.h>
+#include <string>
+using namespace std;
+
+#include <boost/thread/mutex.hpp>
+using namespace boost;
+
+#ifdef _MSC_VER
+#include "idbregistry.h"
+#endif
+#include "installdir.h"
+
+namespace startup
+{
+/* static */
+mutex StartUp::fInstallDirLock;
+/* static */
+string* StartUp::fInstallDirp=0;
+
+/* static */
+const string StartUp::installDir()
+{
+	mutex::scoped_lock lk(fInstallDirLock);
+
+	if (fInstallDirp)
+		return *fInstallDirp;
+
+#ifdef _MSC_VER
+	fInstallDirp = new string("C:\\Calpont");
+	string cfStr = IDBreadRegistry("");
+	if (!cfStr.empty())
+		*fInstallDirp = cfStr;
+#else
+	fInstallDirp = new string("/usr/local/Calpont");
+	//See if we can figure out the install dir in Linux...
+	//1. env var INFINIDB_INSTALL_DIR
+	const char* p=0;
+	p = getenv("INFINIDB_INSTALL_DIR");
+	if (p && *p)
+		*fInstallDirp = p;
+	//2. up one level from current binary location?
+	//3. fall back to /usr/local/Calpont
+#endif
+
+	return *fInstallDirp;
+}
+
+}
+// vim:ts=4 sw=4:
+