void DBClientCursor::dataReceived(bool& retry, string& host) {
// If this is a reply to our initial command request.
if (_isCommand && cursorId == 0) {
commandDataReceived();
return;
}
QueryResult::View qr = batch.m.singleData().view2ptr();
resultFlags = qr.getResultFlags();
if (qr.getResultFlags() & ResultFlag_ErrSet) {
wasError = true;
}
if (qr.getResultFlags() & ResultFlag_CursorNotFound) {
// cursor id no longer valid at the server.
invariant(qr.getCursorId() == 0);
if (!(opts & QueryOption_CursorTailable)) {
uasserted(13127,
str::stream() << "cursor id " << cursorId << " didn't exist on server.");
}
// 0 indicates no longer valid (dead)
cursorId = 0;
}
if (cursorId == 0 || !(opts & QueryOption_CursorTailable)) {
// only set initially: we don't want to kill it on end of data
// if it's a tailable cursor
cursorId = qr.getCursorId();
}
batch.nReturned = qr.getNReturned();
batch.pos = 0;
batch.data = qr.data();
batch.remainingBytes = qr.dataLen();
_client->checkResponse(batch.data, batch.nReturned, &retry, &host); // watches for "not master"
if (qr.getResultFlags() & ResultFlag_ShardConfigStale) {
BSONObj error;
verify(peekError(&error));
throw RecvStaleConfigException(
(string) "stale config on lazy receive" + causedBy(getErrField(error)), error);
}
/* this assert would fire the way we currently work:
verify( nReturned || cursorId == 0 );
*/
}
void DBClientCursor::dataReceived( bool& retry, string& host ) {
QueryResult *qr = (QueryResult *) b.m->singleData();
resultFlags = qr->resultFlags();
if ( qr->resultFlags() & ResultFlag_ErrSet ) {
wasError = true;
}
if ( qr->resultFlags() & ResultFlag_CursorNotFound ) {
// cursor id no longer valid at the server.
assert( qr->cursorId == 0 );
cursorId = 0; // 0 indicates no longer valid (dead)
if ( ! ( opts & QueryOption_CursorTailable ) )
throw UserException( 13127 , "getMore: cursor didn't exist on server, possible restart or timeout?" );
}
if ( cursorId == 0 || ! ( opts & QueryOption_CursorTailable ) ) {
// only set initially: we don't want to kill it on end of data
// if it's a tailable cursor
cursorId = qr->cursorId;
}
b.nReturned = qr->nReturned;
b.pos = 0;
b.data = qr->data();
_client->checkResponse( b.data, b.nReturned, &retry, &host ); // watches for "not master"
if( qr->resultFlags() & ResultFlag_ShardConfigStale ) {
BSONObj error;
assert( peekError( &error ) );
throw RecvStaleConfigException( error["ns"].String(),
(string)"stale config on lazy receive" + causedBy( getErrField( error ) ) );
}
/* this assert would fire the way we currently work:
assert( nReturned || cursorId == 0 );
*/
}