a8000_subboard_sdk/components/flash/znvs.hpp

#pragma once
#include "project_configs.h"
#include "sdk/os/zos.hpp"

#ifdef IFLYTOP_NVS_CONFIG_FLASH_SECTOR
namespace iflytop {
using namespace std;

class ZNVS {
  typedef struct {
    const char* name;
    uint8_t*    defaultval;
    size_t      len;
  } cfg_index_t;
#pragma pack(1)
  typedef struct {
    uint32_t config_start;

    uint32_t data_size;
    uint8_t  data[];
  } config_t;
#pragma pack()

  cfg_index_t m_index[20];
  int         m_index_num = 0;

  bool inited = false;

  config_t* m_cfgcache     = nullptr;
  size_t    m_cfgcachesize = 0;

 public:
  static ZNVS& ins();

  void initialize();

  bool alloc_config(const char* key, uint8_t* data, size_t datalen);
  bool init_config();

  bool get_config(const char* key, uint8_t* data, size_t len);
  bool set_config(const char* key, uint8_t* data, size_t len);

  void flush();

 private:
  void flush_all_to_configcache();
};
#endif

}  // namespace iflytop