func applyDeleteRange(txnID int64, kv mvcc.KV, req *etcdserverpb.DeleteRangeRequest) (*etcdserverpb.DeleteRangeResponse, error) {
resp := &etcdserverpb.DeleteRangeResponse{}
resp.Header = &etcdserverpb.ResponseHeader{}
var (
n int64
rev int64
err error
)
if isGteRange(req.RangeEnd) {
req.RangeEnd = []byte{}
}
if txnID != noTxn {
n, rev, err = kv.TxnDeleteRange(txnID, req.Key, req.RangeEnd)
if err != nil {
return nil, err
}
} else {
n, rev = kv.DeleteRange(req.Key, req.RangeEnd)
}
resp.Deleted = n
resp.Header.Revision = rev
return resp, nil
}
