srsRAN_4G/srsenb/hdr/common/rnti_pool.h

/**
 *
 * \section COPYRIGHT
 *
 * Copyright 2013-2021 Software Radio Systems Limited
 *
 * By using this file, you agree to the terms and conditions set
 * forth in the LICENSE file which can be found at the top level of
 * the distribution.
 *
 */

#ifndef SRSRAN_RNTI_POOL_H
#define SRSRAN_RNTI_POOL_H

#include "srsran/adt/pool/pool_interface.h"
#include "srsran/phy/common/phy_common.h"
#include <memory>

namespace srsenb {

// Allocation of objects in rnti-dedicated memory pool
void  reserve_rnti_memblocks(size_t nof_blocks);
void* allocate_rnti_dedicated_mem(uint16_t rnti, std::size_t size, std::size_t align);
void  deallocate_rnti_dedicated_mem(uint16_t rnti, void* p);

template <typename T>
using unique_rnti_ptr = srsran::unique_pool_ptr<T>;

template <typename T, typename... Args>
unique_rnti_ptr<T> make_rnti_obj(uint16_t rnti, Args&&... args)
{
  void* block = allocate_rnti_dedicated_mem(rnti, sizeof(T), alignof(T));
  if (block == nullptr) {
    // allocated with "new" as a fallback
    return unique_rnti_ptr<T>(new T(std::forward<Args>(args)...), std::default_delete<T>());
  }
  // allocation using rnti-dedicated memory pool was successful
  new (block) T(std::forward<Args>(args)...);
  return unique_rnti_ptr<T>(static_cast<T*>(block), [rnti](T* ptr) {
    ptr->~T();
    deallocate_rnti_dedicated_mem(rnti, ptr);
  });
}

} // namespace srsenb

#endif // SRSRAN_RNTI_POOL_H