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/* Copyright (C) 2021 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 file
class 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 */
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