72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
#ifndef CONTACT_STORAGE_H
|
|
#define CONTACT_STORAGE_H
|
|
|
|
#include <zephyr/types.h>
|
|
|
|
#include "../covid_types.h"
|
|
#include "sequencenumber.h"
|
|
|
|
typedef uint64_t storage_id_t;
|
|
|
|
typedef struct record {
|
|
record_sequence_number_t sn; // TODO: Convert Sequence Number
|
|
uint32_t timestamp; // TODO: Seconds from january first 2000 (UTC+0)
|
|
rssi_t rssi; // TODO: Check correct
|
|
rolling_proximity_identifier_t rolling_proximity_identifier;
|
|
associated_encrypted_metadata_t associated_encrypted_metadata;
|
|
} __packed record_t;
|
|
|
|
typedef struct stored_records_information {
|
|
record_sequence_number_t oldest_contact;
|
|
uint32_t count;
|
|
} stored_records_information_t;
|
|
|
|
/**
|
|
* Initializes the contact storage component
|
|
* @return 0 for success
|
|
*/
|
|
int init_record_storage();
|
|
|
|
/**
|
|
* Loads the record with number sn into the destination struct
|
|
* @param dest
|
|
* @param sn
|
|
* @return 0 in case of success
|
|
*/
|
|
int load_record(record_t* dest, record_sequence_number_t sn);
|
|
|
|
/**
|
|
* Stores the record from src with number sn, increases latest sequence number
|
|
* @param sn
|
|
* @param src
|
|
* @return 0 in case of success
|
|
*/
|
|
int add_record(record_t* src);
|
|
|
|
/**
|
|
* Deletes the record from storage with number sn
|
|
* @param sn the sequence number to delete
|
|
* @return 0 in case of success
|
|
*/
|
|
int delete_record(record_sequence_number_t sn);
|
|
|
|
/**
|
|
* TODO: How to handle if none is available?
|
|
* @return The latest available sequence number (Caution: can actually be lower than the oldes in case of a
|
|
* wrap-around!)
|
|
*/
|
|
record_sequence_number_t get_latest_sequence_number();
|
|
|
|
/**
|
|
* TODO: How to handle if none is available?
|
|
* @return The oldest available sequence number
|
|
*/
|
|
record_sequence_number_t get_oldest_sequence_number();
|
|
|
|
/**
|
|
* @return The amount of contacts, usually get_latest_sequence_number() - get_oldest_sequence_number()
|
|
*/
|
|
uint32_t get_num_records();
|
|
|
|
#endif
|