Method getCachedLocation

fdbclient/NativeAPI.actor.cpp:1829–1853

}

Optional<KeyRangeLocationInfo> DatabaseContext::getCachedLocation(const Optional<TenantNameRef>& tenantName,
                                                                  const KeyRef& key,
                                                                  Reverse isBackward) {
	TenantMapEntry tenantEntry;
	Arena arena;
	KeyRef resolvedKey = key;

	if (tenantName.present()) {
		auto itr = tenantCache.find(tenantName.get());
		if (itr != tenantCache.end()) {
			tenantEntry = itr->second;
			resolvedKey = resolvedKey.withPrefix(tenantEntry.prefix, arena);
		} else {
			return Optional<KeyRangeLocationInfo>();
		}
	}

	auto range =
	    isBackward ? locationCache.rangeContainingKeyBefore(resolvedKey) : locationCache.rangeContaining(resolvedKey);
	if (range->value()) {
		return KeyRangeLocationInfo(tenantEntry, toRelativeRange(range->range(), tenantEntry.prefix), range->value());
	}

	return Optional<KeyRangeLocationInfo>();
}

bool DatabaseContext::getCachedLocations(const Optional<TenantNameRef>& tenantName,
                                         const KeyRangeRef& range,