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/*
Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "cross.h"
#include "exceptions.h"
#include "scoped_temporary.h"
#include <dcp/filesystem.h>
/** Construct a ScopedTemporary. A temporary filename is decided but the file is not opened
* until open() is called.
*/
ScopedTemporary::ScopedTemporary ()
{
_path = boost::filesystem::temp_directory_path() / boost::filesystem::unique_path();
}
/** Close and delete the temporary file */
ScopedTemporary::~ScopedTemporary ()
{
if (_file) {
_file->close();
}
boost::system::error_code ec;
dcp::filesystem::remove(_path, ec);
}
/** @return temporary filename */
char const *
ScopedTemporary::c_str () const
{
return _path.string().c_str();
}
/** Open the temporary file.
* @return File's FILE pointer.
*/
dcp::File&
ScopedTemporary::open (char const * params)
{
if (_file) {
_file->close();
}
_file = dcp::File(_path, params);
if (!*_file) {
throw FileError ("Could not open scoped temporary", _path);
}
return *_file;
}
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