238     enum class SendResult { Sent, Skipped, Error };  enum in incremental::IncrementalServer
239     SendResult SendDataBlock(FileId fileId, BlockIdx blockIdx, bool flush = false);
410 auto IncrementalServer::SendDataBlock(FileId fileId, BlockIdx blockIdx, bool flush) -> SendResult {  in SendDataBlock()
415         return SendResult::Skipped;  in SendDataBlock()
418         return SendResult::Skipped;  in SendDataBlock()
422         return SendResult::Error;  in SendDataBlock()
431         return SendResult::Error;  in SendDataBlock()
462     return SendResult::Sent;  in SendDataBlock()
488                     res == SendResult::Sent) {  in RunPrefetching()
490                 } else if (res == SendResult::Error) {  in RunPrefetching()
496             if (auto res = SendDataBlock(file.id, i); res == SendResult::Sent) {  in RunPrefetching()
498             } else if (res == SendResult::Error) {  in RunPrefetching()
619                         res == SendResult::Error) {  in Serve()
621                     } else if (res == SendResult::Sent) {  in Serve()