void
NsUpgradeReader::initDocInfo()
{
// read doc node
// read namespace info
OperationContext oc;
oc.set(NULL);
const char metadataId[] =
{ NS_PROTOCOL_VERSION_COMPAT, NS_METADATA_ID, 0 };
DbtOut data((void *)metadataId, strlen(metadataId) + 1);
// reproduce old NsDocumentDatabase::getNodeRecord(), but
// cannot deadlock -- no transaction
DBXML_ASSERT(!oc.txn());
id_.setDbtFromThis(oc.key());
int ret = db_.get(oc.txn(), &oc.key(), &data, DB_GET_BOTH);
uint32_t flags = 0;
if (ret == 0) {
const xmlbyte_t *ptr = (const xmlbyte_t *) data.data;
ptr += 3; // past version and id
size_t len;
ptr += NsFormat::unmarshalInt(ptr, &flags);
if (flags & NSDOC_HASDECL) {
ptr += NsFormat::unmarshalInt(ptr, &xmlDecl_);
DBXML_ASSERT(xmlDecl_ == 0 || xmlDecl_ == 1);
}
if (flags & NSDOC_HASENCODE) {
DBXML_ASSERT(!encStr_);
encStr_ = NsUtil::nsStringDup(ptr, &len);
ptr += len;
}
if (flags & NSDOC_HASSNIFF) {
sniffStr_ = NsUtil::nsStringDup(ptr, &len);
ptr += len;
}
if (flags & NSDOC_STANDYES)
standStr_ = _standYes;
if (flags & NSDOC_STANDNO)
standStr_ = _standNo;
}
if (flags & NSDOC_NAMESPACE) {
nsInfo_ = new NsNamespaceInfo();
if (!nsInfo_)
NsUtil::nsThrowException(XmlException::NO_MEMORY_ERROR,
"new failed to allocate memory",
__FILE__, __LINE__);
nsInfo_->initialize();
const char namespaceId[] =
{ NS_PROTOCOL_VERSION_COMPAT, NS_NAMESPACE_ID, 0 };
DbtOut ndata((void *)namespaceId,
strlen(namespaceId) + 1);
id_.setDbtFromThis(oc.key());
ret = db_.get(oc.txn(), &oc.key(), &ndata, DB_GET_BOTH);
if (ret == 0) {
nsInfo_->load((const char*)
((const char *)ndata.data)+3);
}
}
}
