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fix(nvs): corrected findItem to return BLOB_DATA when chunkIndex = CHUNK_ANY

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This commit is contained in:
radek.tandler 2024-02-01 13:45:59 +01:00
parent d879ec5248
commit cad09ea461
1 changed files with 29 additions and 1 deletions
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30
components/nvs_flash/src/nvs_page.cpp
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@ -879,7 +879,10 @@ esp_err_t Page::findItem(uint8_t nsIndex, ItemType datatype, const char* key, si
end = ENTRY_COUNT;
}
if (nsIndex != NS_ANY && key != NULL) {
// For BLOB_DATA, we may need to search for all chunk indexes, so the hash list won't help
// mHashIndex caluclates hash from nsIndex, key, chunkIdx
// We may not use mHashList if datatype is BLOB_DATA and chunkIdx is CHUNK_ANY as CHUNK_ANY is used by BLOB_INDEX
if (nsIndex != NS_ANY && key != NULL && (datatype == ItemType::BLOB_DATA && chunkIdx != CHUNK_ANY)) {
size_t cachedIndex = mHashList.find(start, Item(nsIndex, datatype, 0, key, chunkIdx));
if (cachedIndex < ENTRY_COUNT) {
start = cachedIndex;
@ -934,6 +937,31 @@ esp_err_t Page::findItem(uint8_t nsIndex, ItemType datatype, const char* key, si
&& item.chunkIndex != chunkIdx) {
continue;
}
// We may search for any chunk of BLOB_DATA but find BLOB_INDEX or BLOB instead as it
// uses default value of chunkIdx == CHUNK_ANY, then continue searching
if (chunkIdx == CHUNK_ANY
&& datatype == ItemType::BLOB_DATA
&& item.datatype != ItemType::BLOB_DATA) {
continue;
}
// We may search for BLOB but find BLOB_INDEX instead
// In this case it is expected to return ESP_ERR_NVS_TYPE_MISMATCH
if (chunkIdx == CHUNK_ANY
&& datatype == ItemType::BLOB
&& item.datatype == ItemType::BLOB_IDX) {
return ESP_ERR_NVS_TYPE_MISMATCH;
}
// We may search for BLOB but find BLOB_DATA instead
// Then continue
if (chunkIdx == CHUNK_ANY
&& datatype == ItemType::BLOB
&& item.datatype == ItemType::BLOB_DATA) {
continue;
}
/* Blob-index will match the <ns,key> with blob data.
* Skip data chunks when searching for blob index*/
if (datatype == ItemType::BLOB_IDX