GlobalBufferMemoryManager.h

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/*
 * This is a part of the Uniot project.
 * Copyright (C) 2016-2023 Uniot <contact@uniot.io>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <Arduino.h>
 
namespace uniot {

class GlobalBufferMemoryManager {
 public:
  static void initialize();

  static void* allocate(size_t size);

  static void deallocate(void* ptr);

  static void* reallocate(void* ptr, size_t newSize);

  static size_t getTotalFreeMemory();

  static size_t getLargestFreeBlock();
 
 private:
  struct FreeBlock {
    size_t size;     
    FreeBlock* next; 
  };

  static constexpr bool DEBUG = false;

  static constexpr size_t BUFFER_SIZE = 4096;

  static uint8_t mGlobalBuffer[BUFFER_SIZE];

  static FreeBlock* mFreeList;
};

}  // namespace uniot