ret_code_t pds_peer_data_clear(pm_peer_id_t peer_id, pm_peer_data_id_t data_id) { ret_code_t retval; uint16_t file_id; uint16_t record_key; fds_record_desc_t record_desc; fds_find_token_t find_tok = {0}; VERIFY_MODULE_INITIALIZED(); VERIFY_PEER_ID_IN_RANGE(peer_id); VERIFY_PEER_DATA_ID_IN_RANGE(data_id); file_id = peer_id_to_file_id(peer_id); record_key = peer_data_id_to_record_key(data_id); retval = fds_record_find(file_id, record_key, &record_desc, &find_tok); if(retval != FDS_SUCCESS) { return NRF_ERROR_NOT_FOUND; } retval = fds_record_delete(&record_desc); switch (retval) { case FDS_SUCCESS: return NRF_SUCCESS; case FDS_ERR_NO_SPACE_IN_QUEUES: return NRF_ERROR_BUSY; default: return NRF_ERROR_INTERNAL; } }
static void peer_ids_init() { fds_record_desc_t record_desc; fds_flash_record_t record; fds_find_token_t find_tok = {0}; uint16_t const record_key = peer_data_id_to_record_key(PM_PEER_DATA_ID_BONDING); if (!m_pds.peer_ids_initialized) { while(fds_record_find_by_key(record_key, &record_desc, &find_tok) == FDS_SUCCESS) { pm_peer_id_t peer_id; // It is safe to ignore the return value since we just obtained // this descriptor and also 'record' is different from NULL. (void)fds_record_open(&record_desc, &record); peer_id = file_id_to_peer_id(record.p_header->ic.file_id); (void)fds_record_close(&record_desc); (void)peer_id_allocate(peer_id); } m_pds.peer_ids_initialized = true; } }
static ret_code_t peer_data_find(pm_peer_id_t peer_id, pm_peer_data_id_t data_id, fds_record_desc_t * const p_desc) { ret_code_t ret; fds_find_token_t ftok; NRF_PM_DEBUG_CHECK(peer_id < PM_PEER_ID_N_AVAILABLE_IDS); NRF_PM_DEBUG_CHECK(peer_data_id_is_valid(data_id)); NRF_PM_DEBUG_CHECK(p_desc != NULL); memset(&ftok, 0x00, sizeof(fds_find_token_t)); uint16_t file_id = peer_id_to_file_id(peer_id); uint16_t record_key = peer_data_id_to_record_key(data_id); ret = fds_record_find(file_id, record_key, p_desc, &ftok); if (ret != FDS_SUCCESS) { return NRF_ERROR_NOT_FOUND; } return NRF_SUCCESS; }
ret_code_t pds_peer_data_update(pm_peer_id_t peer_id, pm_peer_data_const_t const * p_peer_data, pm_store_token_t old_token, pm_store_token_t * p_store_token) { ret_code_t retval; fds_record_t record; fds_record_desc_t record_desc; fds_record_chunk_t chunks[2]; uint16_t n_chunks; VERIFY_MODULE_INITIALIZED(); VERIFY_PEER_ID_IN_RANGE(peer_id); VERIFY_PARAM_NOT_NULL(p_peer_data); VERIFY_PEER_DATA_ID_IN_RANGE(p_peer_data->data_id); // Create chunks. peer_data_parts_get(p_peer_data, chunks, &n_chunks); // Prepare the record to be written. record.file_id = peer_id_to_file_id(peer_id); record.key = peer_data_id_to_record_key(p_peer_data->data_id); record.data.p_chunks = chunks; record.data.num_chunks = n_chunks; // Obtain the descriptor of the record to be updated. // It is safe to ignore the return value if record_desc is different from NULL. (void)fds_descriptor_from_rec_id(&record_desc, (uint32_t)old_token); retval = fds_record_update(&record_desc, &record); if ((retval == FDS_SUCCESS) && (p_store_token != NULL)) { // If fds_record_update() returned sucessfully, it is safe // to ignore the return value from fds_record_id_from_desc() since // the descriptor is valid, and also p_store_token is different from NULL. (void)fds_record_id_from_desc(&record_desc, (uint32_t*)p_store_token); } switch (retval) { case FDS_SUCCESS: return NRF_SUCCESS; case FDS_ERR_BUSY: case FDS_ERR_NO_SPACE_IN_QUEUES: return NRF_ERROR_BUSY; case FDS_ERR_NO_SPACE_IN_FLASH: return NRF_ERROR_NO_MEM; default: return NRF_ERROR_INTERNAL; } }
static ret_code_t find_fds_item(pm_peer_id_t peer_id, pm_peer_data_id_t data_id, fds_record_desc_t * const p_desc) { fds_find_token_t find_tok = {0}; VERIFY_PEER_ID_IN_RANGE(peer_id); VERIFY_PEER_DATA_ID_IN_RANGE(data_id); // pp_record verified by caller. uint16_t file_id = peer_id_to_file_id(peer_id); uint16_t record_key = peer_data_id_to_record_key(data_id); return fds_record_find(file_id, record_key, p_desc, &find_tok); }
bool pds_peer_data_iterate(pm_peer_data_id_t data_id, pm_peer_id_t * const p_peer_id, pm_peer_data_flash_t * const p_data) { ret_code_t ret; uint16_t rec_key; fds_record_desc_t rec_desc; fds_flash_record_t rec_flash; NRF_PM_DEBUG_CHECK(m_module_initialized); NRF_PM_DEBUG_CHECK(p_peer_id != NULL); NRF_PM_DEBUG_CHECK(p_data != NULL); // @note emdi: should we check the data_id ? rec_key = peer_data_id_to_record_key(data_id); if (fds_record_find_by_key(rec_key, &rec_desc, &m_fds_ftok) != NRF_SUCCESS) { return false; } ret = fds_record_open(&rec_desc, &rec_flash); if (ret != NRF_SUCCESS) { // It can only happen if the record was deleted after the call to fds_record_find_by_key(), // before we could open it, or if CRC support was enabled in Flash Data Storage at compile // time and the CRC check failed. return false; } p_data->data_id = data_id; p_data->length_words = rec_flash.p_header->tl.length_words; p_data->p_all_data = rec_flash.p_data; *p_peer_id = file_id_to_peer_id(rec_flash.p_header->ic.file_id); (void)fds_record_close(&rec_desc); return true; }
static void peer_ids_load() { fds_record_desc_t record_desc; fds_flash_record_t record; fds_find_token_t ftok; memset(&ftok, 0x00, sizeof(fds_find_token_t)); uint16_t const record_key = peer_data_id_to_record_key(PM_PEER_DATA_ID_BONDING); while (fds_record_find_by_key(record_key, &record_desc, &ftok) == FDS_SUCCESS) { pm_peer_id_t peer_id; // It is safe to ignore the return value since the descriptor was // just obtained and also 'record' is different from NULL. (void)fds_record_open(&record_desc, &record); peer_id = file_id_to_peer_id(record.p_header->ic.file_id); (void)fds_record_close(&record_desc); (void)peer_id_allocate(peer_id); } }
ret_code_t pds_peer_data_store(pm_peer_id_t peer_id, pm_peer_data_const_t const * p_peer_data, pm_prepare_token_t prepare_token, pm_store_token_t * p_store_token) { ret_code_t ret; fds_record_t rec; fds_record_desc_t rec_desc; fds_record_chunk_t rec_chunk; NRF_PM_DEBUG_CHECK(m_module_initialized); NRF_PM_DEBUG_CHECK(p_peer_data != NULL); VERIFY_PEER_ID_IN_RANGE(peer_id); VERIFY_PEER_DATA_ID_IN_RANGE(p_peer_data->data_id); // Prepare chunk. rec_chunk.p_data = p_peer_data->p_all_data; rec_chunk.length_words = p_peer_data->length_words; // Prepare the record to be stored in flash. rec.file_id = peer_id_to_file_id(peer_id); rec.key = peer_data_id_to_record_key(p_peer_data->data_id); rec.data.p_chunks = &rec_chunk; rec.data.num_chunks = 1; ret = peer_data_find(peer_id, p_peer_data->data_id, &rec_desc); if (ret == NRF_ERROR_NOT_FOUND) { // No previous data exists in flash. if (prepare_token == PDS_PREPARE_TOKEN_INVALID) { // No space was previously reserved. ret = fds_record_write(&rec_desc, &rec); } else { // Space for this record was previously reserved. ret = fds_record_write_reserved(&rec_desc, &rec, (fds_reserve_token_t*)&prepare_token); } } else // NRF_SUCCESS { if (prepare_token != PDS_PREPARE_TOKEN_INVALID) { (void)fds_reserve_cancel((fds_reserve_token_t*)&prepare_token); } // Update existing record. ret = fds_record_update(&rec_desc, &rec); } switch (ret) { case FDS_SUCCESS: if (p_store_token != NULL) { // Update the store token. (void)fds_record_id_from_desc(&rec_desc, (uint32_t*)p_store_token); } return NRF_SUCCESS; case FDS_ERR_BUSY: case FDS_ERR_NO_SPACE_IN_QUEUES: return NRF_ERROR_BUSY; case FDS_ERR_NO_SPACE_IN_FLASH: return NRF_ERROR_STORAGE_FULL; default: return NRF_ERROR_INTERNAL; } }