DiskLoc RecordStoreV1Base::_findFirstSpot( OperationContext* txn,
const DiskLoc& extDiskLoc, Extent* e ) {
DiskLoc emptyLoc = extDiskLoc;
emptyLoc.inc( Extent::HeaderSize() );
int delRecLength = e->length - Extent::HeaderSize();
if ( delRecLength >= 32*1024 && _ns.find('$') != string::npos && !isCapped() ) {
// probably an index. so skip forward to keep its records page aligned
int& ofs = emptyLoc.GETOFS();
int newOfs = (ofs + 0xfff) & ~0xfff;
delRecLength -= (newOfs-ofs);
dassert( delRecLength > 0 );
ofs = newOfs;
}
DeletedRecord* empty = txn->recoveryUnit()->writing(drec(emptyLoc));
empty->lengthWithHeaders() = delRecLength;
empty->extentOfs() = e->myLoc.getOfs();
empty->nextDeleted().Null();
return emptyLoc;
}
