/* Copyright (C) 2021-2026 Free Software Foundation, Inc.   Contributed by Oracle.    This file is part of GNU Binutils.    This program is free software; you can redistribute it and/or modify   it under the terms of the GNU General Public License as published by   the Free Software Foundation; either version 3, or (at your option)   any later version.    This program is distributed in the hope that it will be useful,   but WITHOUT ANY WARRANTY; without even the implied warranty of   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   GNU General Public License for more details.    You should have received a copy of the GNU General Public License   along with this program; if not, write to the Free Software   Foundation, 51 Franklin Street - Fifth Floor, Boston,   MA 02110-1301, USA.  */ #ifndef _DATASTREAM_H#define _DATASTREAM_H #include "Data_window.h" // sequential access to the fileclass DataStream : public Data_window{public:  // Create an empty data window.  DataStream (char *file_name);  ~DataStream ();  void set_span (int64_t f_offset, int64_t sz);  int64_t read (void *buf, int64_t len);   template <typename Key_t> inline int64_t  read (Key_t &val)  {    int64_t sz = read (&val, sizeof (val));    if (need_swap_endian && sz == sizeof (val))      swapByteOrder (&val, sizeof (val));    return sz;  } private:  int64_t span_offset;  int64_t span_size;        // the window size  int64_t span_fileoffset;  // the window begin on the file}; #endif /* _DATASTREAM_H */