990   int BytesRead = 0, BytesWritten = 0;  in copy_file_internal()  local
992     BytesRead = read(ReadFD, Buf, BufSize);  in copy_file_internal()
993     if (BytesRead <= 0)  in copy_file_internal()
995     while (BytesRead) {  in copy_file_internal()
996       BytesWritten = write(WriteFD, Buf, BytesRead);  in copy_file_internal()
999       BytesRead -= BytesWritten;  in copy_file_internal()
1006   if (BytesRead < 0 || BytesWritten < 0)  in copy_file_internal()
1048   int BytesRead = 0;  in md5_contents()  local
1050     BytesRead = read(FD, Buf.data(), BufSize);  in md5_contents()
1051     if (BytesRead <= 0)  in md5_contents()
1053     Hash.update(makeArrayRef(Buf.data(), BytesRead));  in md5_contents()
1056   if (BytesRead < 0)  in md5_contents()