static_memory_manager.h

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#ifndef HEDGEHOG_STATIC_MEMORY_MANAGER_H
#define HEDGEHOG_STATIC_MEMORY_MANAGER_H

#include "abstract_memory_manager.h"
namespace hh {
template<class ManagedMemory, class... Args>
class StaticMemoryManager : public AbstractMemoryManager<ManagedMemory> {
 private:

  class HasConstructor {
    template<class TestManagedMemory, class... TestArgs>
    static std::true_type test(
        decltype(new TestManagedMemory((std::declval<TestArgs>())...)));

    template<class TestManagedMemory, class ...TestArgs>
    static std::false_type test(...);
   public:
    enum { value = std::is_same_v<decltype(test<ManagedMemory, Args...>(0)), std::true_type> };
  };

  static_assert(HasConstructor::value,
                "The Memory that you are trying to manage does not have the right constructor definition.");

  std::tuple<Args...> args_ = {}; 

 public:
  StaticMemoryManager() = delete;

  explicit StaticMemoryManager(size_t const &capacity, Args ... args) :
      AbstractMemoryManager<ManagedMemory>(capacity), args_(std::forward<Args>(args)...) {
  }

  StaticMemoryManager(StaticMemoryManager<ManagedMemory, Args...> &rhs)
      : AbstractMemoryManager<ManagedMemory>(rhs.capacity()), args_(rhs.args_) {}

  void initialize() final {
    std::lock_guard<std::mutex> lk(this->memoryManagerMutex());
    if (!this->isInitialized()) {
      this->initialized();
      initialize(std::make_index_sequence<sizeof...(Args)>());
      this->initializeMemoryManager();
    }
  }

  std::shared_ptr<AbstractMemoryManager < ManagedMemory>> copy() override {
    return std::make_shared<StaticMemoryManager<ManagedMemory, Args...>>(*this);
  }

 private:
  template<size_t... Is>
  void initialize(std::index_sequence<Is...>) {
    std::for_each(
        this->pool()->begin(), this->pool()->end(),
        [this](std::shared_ptr<ManagedMemory> &emptyShared) {
          emptyShared = std::make_shared<ManagedMemory>(std::get<Is>(args_)...);
          emptyShared->memoryManager(this);
        }
    );
  }
};
}

#endif //HEDGEHOG_STATIC_MEMORY_MANAGER_H