slot_abstraction.h

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#ifndef HEDGEHOG_SLOT_ABSTRACTION_H
#define HEDGEHOG_SLOT_ABSTRACTION_H
#pragma once
 
#include <set>
#include <memory>
#include <utility>
#include <iostream>
#include <condition_variable>
 
#include "../../../implementors/implementor/implementor_slot.h"
 
namespace hh {
namespace core {
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
namespace implementor {
class ImplementorSlot;
}
#endif //DOXYGEN_SHOULD_SKIP_THIS
 
namespace abstraction {
 
#ifndef DOXYGEN_SHOULD_SKIP_THIS
class NotifierAbstraction;
#endif //DOXYGEN_SHOULD_SKIP_THIS
 
class SlotAbstraction {
 private:
  std::shared_ptr<std::mutex>
      mutex_ = nullptr; 
 
  std::shared_ptr<std::condition_variable>
      slotConditionVariable_ = nullptr; 
 
  std::shared_ptr<implementor::ImplementorSlot>
      concreteSlot_ = nullptr; 
 
 public:
  explicit SlotAbstraction(std::shared_ptr<implementor::ImplementorSlot> concreteSlot) :
      mutex_(std::make_shared<std::mutex>()),
      slotConditionVariable_(std::make_shared<std::condition_variable>()),
      concreteSlot_(std::move(concreteSlot)) {
    concreteSlot_->initialize(this);
  }
 
  virtual ~SlotAbstraction() = default;
 
  [[nodiscard]] std::set<SlotAbstraction *> const &slots() const { return concreteSlot_->slots(); }
 
  [[nodiscard]] std::set<SlotAbstraction *> &slots() { return concreteSlot_->slots(); }
 
  [[nodiscard]] std::set<NotifierAbstraction *> const &connectedNotifiers() const {
    mutex_->lock();
    std::set<NotifierAbstraction *> const &  cn = concreteSlot_->connectedNotifiers();
    mutex_->unlock();
    return cn;
  }
 
  void addNotifier(NotifierAbstraction *const notifier) {
    mutex_->lock();
    concreteSlot_->addNotifier(notifier);
    mutex_->unlock();
  }
 
  void removeNotifier(NotifierAbstraction *const notifier) {
    mutex_->lock();
    concreteSlot_->removeNotifier(notifier);
    mutex_->unlock();
  }
 
  virtual void wakeUp() = 0;
 
  [[nodiscard]] bool hasNotifierConnected() const {
    return concreteSlot_->hasNotifierConnected();
  };
 
  void lockSlotMutex() { mutex_->lock(); }
 
  void unlockSlotMutex() { mutex_->unlock(); }
 
 protected:
  [[nodiscard]] std::shared_ptr<std::mutex> const &mutex() const { return mutex_; }
 
  [[nodiscard]] std::shared_ptr<std::condition_variable> const &slotConditionVariable() const {
    return slotConditionVariable_;
  }
 
  void copyInnerStructure(SlotAbstraction *copyableCore) {
    this->mutex_ = copyableCore->mutex_;
    this->slotConditionVariable_ = copyableCore->slotConditionVariable_;
  }
};
}
}
}
 
#endif //HEDGEHOG_SLOT_ABSTRACTION_H