the begginning

versioning/BRM/rwlockmonitor.h

@@ -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. */
+
+/*
+ * rwlockmonitor.h
+ *
+ *  Created on: Aug 15, 2011
+ *      Author: pleblanc
+ */
+
+#ifndef RWLOCKMONITOR_H_
+#define RWLOCKMONITOR_H_
+
+#include <unistd.h>
+#include <boost/scoped_ptr.hpp>
+
+#include "rwlock.h"
+
+#if defined(_MSC_VER) && defined(xxxRWLOCKMONITOR_DLLEXPORT)
+#define EXPORT __declspec(dllexport)
+#else
+#define EXPORT
+#endif
+
+namespace BRM {
+
+class RWLockMonitor {
+public:
+	// d = die, ls = lock status, k = key
+	EXPORT RWLockMonitor(const bool *d, const bool *ls, const uint32_t k);
+
+	EXPORT virtual ~RWLockMonitor();
+
+	EXPORT void operator()();
+
+private:
+	//Are these defaults okay?
+	//RWLockMonitor(const RWLockMonitor&rhs);
+	//RWLockMonitor& operator=(const RWLockMonitor&rhs);
+
+	/* Some of these vars are only useful once we implement write_lock checking. */
+	const bool *die;
+	const bool *lockStatus;
+	uint32_t key;
+	boost::shared_ptr<rwlock::RWLock> lock;
+
+	struct timespec ts;   // 3:30 timer
+	uint32_t secsBetweenAttempts;  // :30
+};
+
+} /* namespace BRM */
+
+#undef EXPORT
+
+#endif /* RWLOCKMONITOR_H_ */
+