initial code repo

[stor4nfv.git] / src / ceph / src / include / scope_guard.h

diff --git a/src/ceph/src/include/scope_guard.h b/src/ceph/src/include/scope_guard.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2016 Red Hat
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef SCOPE_GUARD
+#define SCOPE_GUARD
+
+#include <utility>
+
+template <typename F>
+struct scope_guard {
+  F f;
+  scope_guard() = delete;
+  scope_guard(const scope_guard &) = delete;
+  scope_guard(scope_guard &&) = default;
+  scope_guard & operator=(const scope_guard &) = delete;
+  scope_guard & operator=(scope_guard &&) = default;
+  scope_guard(F &&f) : f(std::move(f)) {}
+  ~scope_guard() {
+    f();
+  }
+};
+
+template <typename F>
+scope_guard<F> make_scope_guard(F &&f) {
+  return scope_guard<F>(std::forward<F>(f));
+}
+
+#endif