MemoryData.hpp

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#ifndef HTGS_MEMORYDATA_HPP
#define HTGS_MEMORYDATA_HPP

#include <stddef.h>
#include <htgs/core/queue/PriorityBlockingQueue.hpp>
#include <htgs/types/MMType.hpp>
#include <htgs/api/IMemoryAllocator.hpp>
#include <htgs/api/IMemoryReleaseRule.hpp>
#include <htgs/api/IData.hpp>
#include <htgs/core/graph/Connector.hpp>

namespace htgs {
template<class T>
class MemoryData : public IData, public std::enable_shared_from_this<MemoryData<T>> {
 public:
  MemoryData(std::shared_ptr<IMemoryAllocator<T>> allocator,
             std::weak_ptr<Connector<MemoryData<T>>> memoryManagerConnector,
             std::string memoryManagerName,
             MMType type) {
    this->type = type;
    this->memoryManagerConnector = memoryManagerConnector;
    // TODO: Delete or Add #ifdef
//    this->address = address;
    this->memoryManagerName = memoryManagerName;
    this->allocator = allocator;
    if (allocator != nullptr)
      this->size = allocator->size();
    else
      this->size = 0;
    this->pipelineId = 0;
    this->memoryReleaseRule = nullptr;
    this->memory = nullptr;
  }

  ~MemoryData() {
    if (memoryReleaseRule) {
      delete memoryReleaseRule;
      memoryReleaseRule = nullptr;
    }
  }

  // TODO: Delete or Add #ifdef
//  /**
//   * Gets the address of the memory manager that allocated this memory data
//   * @return the address of the memory manager that allocated the memory data
//   */
//  const std::string &getAddress() const {
//    return address;
//  }

  void releaseMemory() {
    std::shared_ptr<MemoryData<T>> mPtr = std::enable_shared_from_this<MemoryData<T>>::shared_from_this();
    std::shared_ptr<Connector<MemoryData<T>>> mConn = memoryManagerConnector.lock();
    mConn->produceData(mPtr);
  }

  void setPipelineId(size_t id) { this->pipelineId = id; }

  size_t getPipelineId() const { return this->pipelineId; }

  size_t getSize() const { return this->size; }

  void setMemoryReleaseRule(IMemoryReleaseRule *rule) {
    if (memoryReleaseRule) {
      delete memoryReleaseRule;
      memoryReleaseRule = nullptr;
    }
    this->memoryReleaseRule = rule;
  }

  IMemoryReleaseRule *getMemoryReleaseRule() const {
    return this->memoryReleaseRule;
  }

  bool canReleaseMemory() {
    return this->memoryReleaseRule->canReleaseMemory();
  }

  void memoryUsed() {
    this->memoryReleaseRule->memoryUsed();
  }

  void memAlloc() { this->memory = this->allocator->memAlloc(); }

  T *get() { return this->memory; }

  const T &get(size_t idx) const {
    return *(this->memory + idx);
  }

  T &get(size_t idx) {
    return *(this->memory + idx);
  }

  const T &operator[](size_t idx) const {
    return *(this->memory + idx);
  }

  T &operator[](size_t idx) {
    return *(this->memory + idx);
  }

  void memFree() {
    if (this->memory) {
      this->allocator->memFree(this->memory);
      this->memory = nullptr;
    }
  }

  MMType getType() const {
    return type;
  }

  MemoryData<T> *copy() {
    return new MemoryData<T>(this->allocator,
                             this->memoryManagerConnector,
      // TODO: Delete or Add #ifdef
//                             this->address,
                             this->memoryManagerName,
                             this->type);
  }

  void memAlloc(size_t size) {
    this->memory = this->allocator->memAlloc(size);
    this->size = size;
  }

  const std::string &getMemoryManagerName() const {
    return memoryManagerName;
  }

 private:
  MMType type; 
  std::string memoryManagerName; 
  std::weak_ptr<Connector<MemoryData<T>>> memoryManagerConnector; 
  // TODO: Delete or Add #ifdef
//  std::string address; //!< The address of the memory manager, used to release back
  size_t pipelineId; 
  T *memory; 
  size_t size; 
  IMemoryReleaseRule *memoryReleaseRule; 
  std::shared_ptr<IMemoryAllocator<T>> allocator; 
};
}

#endif //HTGS_MEMORY_HPP