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