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/*
Copyright (C) 2020-2021 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/>.
*/
#include <functional>
#include <set>
class Suspender
{
public:
Suspender (std::function<void (int)> handler);
bool check (int property);
class Block
{
public:
Block (Suspender* s);
~Block ();
private:
Suspender* _suspender;
};
Block block ();
private:
friend class Block;
void increment ();
void decrement ();
std::function<void (int)> _handler;
int _count = 0;
std::set<int> _pending;
};
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