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/*
Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
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 2 of the License, 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "data.h"
#include "cross.h"
#include "exceptions.h"
#include "i18n.h"
using boost::shared_array;
Data::Data ()
: _size (0)
{
}
Data::Data (int size)
: _data (new uint8_t[size])
, _size (size)
{
}
Data::Data (uint8_t const * data, int size)
: _data (new uint8_t[size])
, _size (size)
{
memcpy (_data.get(), data, size);
}
Data::Data (boost::filesystem::path file)
{
_size = boost::filesystem::file_size (file);
_data.reset (new uint8_t[_size]);
FILE* f = fopen_boost (file, "rb");
if (!f) {
throw FileError (_("could not open file for reading"), file);
}
size_t const r = fread (_data.get(), 1, _size, f);
if (r != size_t (_size)) {
fclose (f);
throw FileError (_("could not read from file"), file);
}
fclose (f);
}
void
Data::write (boost::filesystem::path file) const
{
FILE* f = fopen_boost (file, "wb");
if (!f) {
throw WriteFileError (file, errno);
}
size_t const r = fwrite (_data.get(), 1, _size, f);
if (r != size_t (_size)) {
fclose (f);
throw FileError ("could not write to file", file);
}
fclose (f);
}
void
Data::write_via_temp (boost::filesystem::path temp, boost::filesystem::path final) const
{
write (temp);
boost::filesystem::rename (temp, final);
}
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