/usr/include/mirserver/mir/time/alarm_factory.h is in libmirserver-dev 0.26.3+16.04.20170605-0ubuntu1.1.
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* Copyright © 2014-2015 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3,
* as published by the Free Software Foundation.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
* Alberto Aguirre <alberto.aguirre@canonical.com>
*/
#ifndef MIR_TIME_ALARM_FACTORY_H_
#define MIR_TIME_ALARM_FACTORY_H_
#include "mir/time/alarm.h"
#include <chrono>
#include <functional>
#include <memory>
namespace mir
{
class LockableCallback;
namespace time
{
class Alarm;
class AlarmFactory
{
public:
virtual ~AlarmFactory() = default;
/**
* \brief Create an Alarm that will not fire until scheduled
*
* \param callback Function to call when the Alarm signals
*
* \return A handle to an Alarm that can later be scheduled
*/
virtual std::unique_ptr<Alarm> create_alarm(std::function<void()> const& callback) = 0;
/**
* \brief Create an Alarm that will not fire until scheduled
*
* A LockableCallback allows the user to preserve lock ordering
* in situations where Alarm methods need to be called under external lock
* and the callback implementation needs to run code protected by the same
* lock. An alarm implementation may have internal locks of its own, which
* maybe acquired during callback dispatching; to preserve lock ordering
* LockableCallback::lock is invoked during callback dispatch before
* any internal locks are acquired.
*
* \param callback Function to call when the Alarm signals
* \return A handle to an Alarm that can later be scheduled
*/
virtual std::unique_ptr<Alarm> create_alarm(std::unique_ptr<LockableCallback> callback) = 0;
protected:
AlarmFactory() = default;
AlarmFactory(AlarmFactory const&) = delete;
AlarmFactory& operator=(AlarmFactory const&) = delete;
};
}
}
#endif // MIR_TIME_ALARM_FACTORY_H_
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