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/*
Copyright (C) 2022 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DCPOMATIC_SCOPE_GUARD_H
#define DCPOMATIC_SCOPE_GUARD_H
#include <functional>
class ScopeGuard
{
public:
template <typename F>
ScopeGuard (F const& function)
: _function(function)
{}
ScopeGuard (ScopeGuard&& other)
: _function(std::move(other._function))
{
other._function = []{};
}
ScopeGuard (ScopeGuard const&) = delete;
ScopeGuard& operator=(ScopeGuard const&) = delete;
~ScopeGuard ()
{
if (!_cancelled) {
_function();
}
}
void cancel()
{
_cancelled = true;
}
private:
std::function<void()> _function;
bool _cancelled = false;
};
#endif
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