/usr/include/caf/detail/scope_guard.hpp is in libcaf-dev 0.13.2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#ifndef CAF_DETAIL_SCOPE_GUARD_HPP
#define CAF_DETAIL_SCOPE_GUARD_HPP
#include <utility>
namespace caf {
namespace detail {
/**
* A lightweight scope guard implementation.
*/
template <class Fun>
class scope_guard {
scope_guard() = delete;
scope_guard(const scope_guard&) = delete;
scope_guard& operator=(const scope_guard&) = delete;
public:
scope_guard(Fun f) : m_fun(std::move(f)), m_enabled(true) {}
scope_guard(scope_guard&& other)
: m_fun(std::move(other.m_fun)), m_enabled(other.m_enabled) {
other.m_enabled = false;
}
~scope_guard() {
if (m_enabled) m_fun();
}
/**
* Disables this guard, i.e., the guard does not
* run its cleanup code as it goes out of scope.
*/
inline void disable() { m_enabled = false; }
private:
Fun m_fun;
bool m_enabled;
};
/**
* Creates a guard that executes `f` as soon as it goes out of scope.
* @relates scope_guard
*/
template <class Fun>
scope_guard<Fun> make_scope_guard(Fun f) {
return {std::move(f)};
}
} // namespace detail
} // namespace caf
#endif // CAF_DETAIL_SCOPE_GUARD_HPP
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