ClientCursor::ClientCursor(int queryOptions, const shared_ptr<Cursor>& c, const string& ns, BSONObj query ) :
_ns(ns), _db( cc().database() ),
_c(c), _pos(0),
_query(query), _queryOptions(queryOptions),
_idleAgeMillis(0), _pinValue(0),
_doingDeletes(false), _yieldSometimesTracker(128,10) {
Lock::assertAtLeastReadLocked(ns);
verify( _db );
verify( str::startsWith(_ns, _db->name) );
if( queryOptions & QueryOption_NoCursorTimeout )
noTimeout();
recursive_scoped_lock lock(ccmutex);
_cursorid = allocCursorId_inlock();
clientCursorsById.insert( make_pair(_cursorid, this) );
if ( ! _c->modifiedKeys() ) {
// store index information so we can decide if we can
// get something out of the index key rather than full object
int x = 0;
BSONObjIterator i( _c->indexKeyPattern() );
while ( i.more() ) {
BSONElement e = i.next();
if ( e.isNumber() ) {
// only want basic index fields, not "2d" etc
_indexedFields[e.fieldName()] = x;
}
x++;
}
}
}
ClientCursor::ClientCursor(int queryOptions, const shared_ptr<Cursor>& c, const string& ns,
BSONObj query, const bool inMultiStatementTxn, bool createCursorID ) :
_cursorid(INVALID_CURSOR_ID), _ns(ns), _db( cc().database() ),
_c(c), _pos(0),
_query(query), _queryOptions(queryOptions),
_slaveReadTillTS(0),
_idleAgeMillis(0), _pinValue(0),
_partOfMultiStatementTxn(inMultiStatementTxn) {
Lock::assertAtLeastReadLocked(ns);
verify( _db );
verify( str::startsWith(_ns, _db->name()) );
if( queryOptions & QueryOption_NoCursorTimeout )
noTimeout();
if ( ! _c->modifiedKeys() ) {
// store index information so we can decide if we can
// get something out of the index key rather than full object
int x = 0;
BSONObjIterator i( _c->indexKeyPattern() );
while ( i.more() ) {
BSONElement e = i.next();
if ( e.isNumber() ) {
// only want basic index fields, not "2d" etc
_indexedFields[e.fieldName()] = x;
}
x++;
}
}
if (createCursorID) {
initCursorID();
}
}
