Function getMetadataVersion

src/MetadataManager.actor.cpp:33–44

}

Future<uint64_t> getMetadataVersion(Reference<DocTransaction> tr, Reference<DirectorySubspace> metadataDirectory) {
	Standalone<StringRef> versionKey = metadataDirectory->key().withSuffix(
	    DataValue(DocLayerConstants::VERSION_KEY, DVTypeCode::STRING).encode_key_part());
	Future<Optional<FDBStandalone<StringRef>>> fov = tr->tr->get(versionKey);
	Future<uint64_t> ret = map(fov, [](Optional<FDBStandalone<StringRef>> ov) -> uint64_t {
		if (!ov.present())
			return 0;
		else
			return *((uint64_t*)(ov.get().begin()));
	});
	return ret;
}

std::string describeIndex(std::vector<std::pair<std::string, int>> indexKeys) {
	std::string ret = "index: ";