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-rw-r--r--um/service/include/libservice/handle.hpp77
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diff --git a/um/service/include/libservice/handle.hpp b/um/service/include/libservice/handle.hpp
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+// Copyright (c) 2015 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "Windows 7 drivers" project.
+// For details, see https://github.com/egor-tensin/windows7-drivers.
+// Distributed under the MIT License.
+
+#pragma once
+
+#include "common.hpp"
+
+#include <Windows.h>
+
+#include <memory>
+#include <type_traits>
+#include <utility>
+
+namespace libservice
+{
+ class Handle
+ {
+ public:
+ Handle() = default;
+
+ Handle(HANDLE raw)
+ : impl(raw)
+ { }
+
+ Handle(Handle&& other) LIBSERVICE_NOEXCEPT
+ {
+ swap(other);
+ }
+
+ Handle& operator=(Handle other) LIBSERVICE_NOEXCEPT
+ {
+ swap(other);
+ return *this;
+ }
+
+ operator bool() const
+ {
+ return static_cast<bool>(impl);
+ }
+
+ operator HANDLE() const
+ {
+ return impl.get();
+ }
+
+ void swap(Handle& other) LIBSERVICE_NOEXCEPT
+ {
+ using std::swap;
+ swap(impl, other.impl);
+ }
+
+ private:
+ struct Deleter
+ {
+ void operator()(HANDLE raw)
+ {
+ CloseHandle(raw);
+ }
+ };
+
+ std::unique_ptr<std::remove_pointer<HANDLE>::type, Deleter> impl;
+
+ Handle(const Handle&) = delete;
+ };
+
+ void swap(Handle& a, Handle& b) LIBSERVICE_NOEXCEPT;
+}
+
+namespace std
+{
+ template <>
+ void swap<libservice::Handle>(
+ libservice::Handle& a,
+ libservice::Handle& b) LIBSERVICE_NOEXCEPT;
+}