ret_code_t pds_peer_data_write(pm_peer_id_t peer_id,
pm_peer_data_const_t const * p_peer_data,
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;
retval = fds_record_write(&record_desc, &record);
if ((retval == FDS_SUCCESS) && (p_store_token != NULL))
{
// If fds_record_write() 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;
}
}
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;
}
}
