rocksdb::Status DeletePDS( const rocksdb::Slice &aPDSName, const rocksdb::Slice &aPDSId )
{
rocksdb::Status rs = mPDSDBHndl->Delete( mPDSwropts, aPDSName );
if( rs.ok() )
rs = mPDSDBHndl->Delete( mPDSwropts, aPDSId );
return rs;
}
rocksdb::Status ClosePDS( const rocksdb::Slice &aPDSId )
{
// we currently ignore the pdsid because we don't use separate file per PDS. This might change later!!
rocksdb::FlushOptions flOpts = rocksdb::FlushOptions();
rocksdb::Status rs = mPDSDBHndl->Flush( flOpts );
if( rs.ok() )
rs = mDataDBHndl->Flush( flOpts );
return rs;
}
rocksdb::Status CreatePDS( const rocksdb::Slice &aPDSName,
const rocksdb::Slice &aPDSId,
const rocksdb::Slice &aPDSData )
{
rocksdb::Status rs = mPDSDBHndl->Put( mPDSwropts,
aPDSName,
aPDSData );
if( rs.ok() )
{
rs = mPDSDBHndl->Put( mPDSwropts,
aPDSId,
aPDSData );
}
return rs;
}
rocksdb::Iterator* NewIterator( const rocksdb::Slice *aStartKey, const rocksdb::Slice *aPDSId )
{
#if (ROCKSDB_MAJOR < 3 )
mIteratorOpts.prefix = NULL;
#endif
mIteratorOpts.tailing = true;
rocksdb::Iterator *iter = mDataDBHndl->NewIterator( mIteratorOpts );
if( aStartKey != NULL )
{
iter->Seek( *aStartKey );
}
else
{
iter->SeekToFirst();
}
return iter;
}
unique_ptr<rocksdb::Iterator> NewIterator() {
return unique_ptr<rocksdb::Iterator>(db_->NewIterator(options_));
}
~SnapshopIteratorCreator() {
db_->ReleaseSnapshot(options_.snapshot);
}
SnapshopIteratorCreator(rocksdb::DB* db) : db_(db) {
options_.snapshot = db_->GetSnapshot();
}
rocksdb::Status DeleteData( const rocksdb::Slice &aKey )
{
return mDataDBHndl->Delete( mDeleteOpts, aKey );
}
rocksdb::Status PutData( const rocksdb::Slice &aKey, const rocksdb::Slice &aValue )
{
return mDataDBHndl->Put( mPDSwropts, aKey, aValue );
}
rocksdb::Status LookupData( const rocksdb::Slice &aKey, std::string *aValue )
{
rocksdb::Status rs = mDataDBHndl->Get( mPDSrdopts, aKey, aValue );
return rs;
}
bool DataKeyMayExist( const rocksdb::Slice &aKey )
{
bool getval = false;
std::string value;
return mDataDBHndl->KeyMayExist( mPDSrdopts, aKey, &value, &getval );
}
rocksdb::Status GetPDS( const rocksdb::Slice &aKey, std::string *aValue )
{
return mPDSDBHndl->Get( mPDSrdopts, aKey, aValue );
}