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/************************************************************************
*
* Copyright (C) 2009-2025 IRCAD France
* Copyright (C) 2012-2019 IHU Strasbourg
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#pragma once
#define FWCOM_SLOTS_HPP
#include <sight/core/config.hpp>
#include "core/macros.hpp"
#include "core/thread/worker.hpp"
#include <map>
#include <string>
#include <vector>
namespace sight::core::thread
{
class worker;
} // namespace sight::core::thread
namespace sight::core::com
{
struct slot_base;
template<typename F>
class slot;
/**
* @brief This class proposes a storage for slots.
*/
class SIGHT_CORE_CLASS_API slots : public std::map<std::string,
SPTR(slot_base)>
{
public:
using key_t = std::string;
using slot_key_container_t = std::vector<key_t>;
SIGHT_CORE_API slots() = default;
SIGHT_CORE_API virtual ~slots() = default;
/// Copy constructor forbidden
slots(const slots& /*unused*/) = delete;
/// Registers SlotBase in m_slots
SIGHT_CORE_API slots& operator()(const key_t& _key, const SPTR(slot_base)& _slot);
/// Registers Slot in m_slots (defined here to avoid compiler error C2244)
template<typename R, typename ... A>
slots& operator()(const key_t& _key, SPTR(slot<R(A ...)>)_slot)
{
SPTR(slot_base) base = std::dynamic_pointer_cast<slot_base>(_slot);
return this->operator()(_key, base);
}
/// Returns the SlotBase associated to the key, if key does not exist, the ptr is null
SIGHT_CORE_API SPTR(slot_base) operator[](const key_t& _key) const;
/// Assigns the worker to all slots stored in m_slots
SIGHT_CORE_API void set_worker(const SPTR(core::thread::worker)& _worker);
/// Returns all key_t registered in m_slots
[[nodiscard]] SIGHT_CORE_API slot_key_container_t get_slot_keys() const;
};
} // namespace sight::core::com
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