995   int BytesRead = 0, BytesWritten = 0;  in copy_file_internal()  local
997     BytesRead = read(ReadFD, Buf, BufSize);  in copy_file_internal()
998     if (BytesRead <= 0)  in copy_file_internal()
1000     while (BytesRead) {  in copy_file_internal()
1001       BytesWritten = write(WriteFD, Buf, BytesRead);  in copy_file_internal()
1004       BytesRead -= BytesWritten;  in copy_file_internal()
1011   if (BytesRead < 0 || BytesWritten < 0)  in copy_file_internal()
1053   int BytesRead = 0;  in md5_contents()  local
1055     BytesRead = read(FD, Buf.data(), BufSize);  in md5_contents()
1056     if (BytesRead <= 0)  in md5_contents()
1058     Hash.update(ArrayRef(Buf.data(), BytesRead));  in md5_contents()
1061   if (BytesRead < 0)  in md5_contents()