memory_manager.h

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#ifndef HEDGEHOG_MEMORY_MANAGER_H_
#define HEDGEHOG_MEMORY_MANAGER_H_
 
#pragma once
 
#include "../managed_memory.h"
#include "abstract_memory_manager.h"
#include "../../../tools/concepts.h"
 
namespace hh {
 
template<tool::ManageableMemory T>
class MemoryManager : public AbstractMemoryManager {
 public:
  explicit MemoryManager(size_t const &capacity) : AbstractMemoryManager(capacity) {}
 
  ~MemoryManager() override = default;
 
  std::shared_ptr<AbstractMemoryManager> copy() override {
    return std::make_shared<MemoryManager>(this->capacity());
  }
 
  virtual void initializeMemoryManager() {}
 
  std::shared_ptr<ManagedMemory> getManagedMemory() final   {
    std::shared_ptr<ManagedMemory> managedMemory = nullptr;
    managedMemory = this->pool()->pop_front();
    managedMemory->preProcess();
    return managedMemory;
  }
 
 private:
  void recycleMemory(std::shared_ptr<ManagedMemory> const &managedMemory) final {
    memoryManagerMutex_.lock();
    managedMemory->postProcess();
    if (managedMemory->canBeRecycled()) {
      this->profiler()->addReleaseMarker();
      managedMemory->clean();
      this->pool()->push_back(managedMemory);
    }
    memoryManagerMutex_.unlock();
  }
 
  void initialize() final {
    memoryManagerMutex_.lock();
    if (!this->isInitialized()) {
      this->initialized();
      std::for_each(
          this->pool()->begin(), this->pool()->end(),
          [this](std::shared_ptr<ManagedMemory> &emptyShared) {
            emptyShared = std::make_shared<T>();
            emptyShared->memoryManager(this);
          }
      );
      initializeMemoryManager();
    }
    memoryManagerMutex_.unlock();
  }
 
  [[nodiscard]] std::string managedType() const final { return hh::tool::typeToStr<T>(); }
};
}
#endif //HEDGEHOG_MEMORY_MANAGER_H_