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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;
};
inline void swap(Handle& a, Handle& b) LIBSERVICE_NOEXCEPT
{
a.swap(b);
}
}
namespace std
{
template <>
inline void swap<libservice::Handle>(
libservice::Handle& a,
libservice::Handle& b) LIBSERVICE_NOEXCEPT
{
a.swap(b);
}
}
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