/*
    Copyright (C) 2018 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 "atomicity_checker.h"
#include "types.h"

/** @return true if this change should be ignored */
bool
AtomicityChecker::send (ChangeType type, int property)
{
	boost::mutex::scoped_lock lm (_mutex);
	switch (type) {
	case CHANGE_TYPE_PENDING:
		_await.insert (property);
		return false;
	case CHANGE_TYPE_DONE:
	case CHANGE_TYPE_CANCELLED:
		if (_await.find(property) != _await.end()) {
			_await.erase (property);
			return false;
		}
		return true;
	}

	return false;
}