NotificationWorker.hpp

/*
** Copyright (C) 2022 CERN
**
** This software is provided 'as-is', without any express or implied
** warranty.  In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
**    claim that you wrote the original software. If you use this software
**    in a product, an acknowledgment in the product documentation would be
**    appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
**    misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Created on: 2022-07-21T16:37:09
** Author: Sylvain Fargier <sylvain.fargier@cern.ch>
*/
 
#ifndef NOTIFICATIONWORKER_HPP__
#define NOTIFICATIONWORKER_HPP__
 
#include <memory>
#include <set>
 
#include <ccut/Worker.hpp>
 
#include "device/DeviceBase.hpp"
 
namespace smc {
namespace internal {
 
class DeviceStore;
 
class NotificationWorker : public ccut::Worker
{
public:
    typedef std::shared_ptr<NotificationWorker> Shared;
 
    explicit NotificationWorker(const std::shared_ptr<DeviceStore> &store,
                                std::size_t numThreads = 3,
                                std::size_t maxSize = 2048);
    ~NotificationWorker();
 
    template<typename T>
    void post(T fun)
    {
        ccut::Worker::post([this, fun]() { fun(m_store.lock()); });
    }
 
    void notify(const std::shared_ptr<std::set<DeviceId>> &updates);
 
protected:
    std::weak_ptr<DeviceStore> m_store;
};
 
} // namespace internal
} // namespace smc
 
#endif