Changed project name to wsrep-lib.

include/wsrep/lock.hpp

@@ -0,0 +1,61 @@
+//
+// Copyright (C) 2018 Codership Oy <info@codership.com>
+//
+
+#ifndef WSREP_LOCK_HPP
+#define WSREP_LOCK_HPP
+
+#include "mutex.hpp"
+
+#include <cassert>
+
+namespace wsrep
+{
+    template <class M>
+    class unique_lock
+    {
+    public:
+        unique_lock(M& mutex)
+            : mutex_(mutex)
+            , locked_(false)
+        {
+            mutex_.lock();
+            locked_ = true;
+        }
+        ~unique_lock()
+        {
+            if (locked_)
+            {
+                unlock();
+            }
+        }
+
+        void lock()
+        {
+            mutex_.lock();
+            assert(locked_ == false);
+            locked_ = true;
+        }
+
+        void unlock()
+        {
+            assert(locked_);
+            locked_ = false;
+            mutex_.unlock();
+        }
+
+        bool owns_lock() const
+        {
+            return locked_;
+        }
+
+        M& mutex() { return mutex_; }
+    private:
+        unique_lock(const unique_lock&);
+        unique_lock& operator=(const unique_lock&);
+        M& mutex_;
+        bool locked_;
+    };
+}
+
+#endif // WSREP_LOCK_HPP