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#ifndef UTIL_TEMPFILE_H
#define UTIL_TEMPFILE_H
// Utilities for creating temporary files and directories.
#include <cstdio>
#include <cstdlib>
#include <string>
#include <boost/filesystem.hpp>
#include <boost/noncopyable.hpp>
#include "util/exception.hh"
namespace util
{
/** Temporary directory.
*
* Automatically creates, and on destruction deletes, a temporary directory.
* The actual directory in the filesystem will only exist while the temp_dir
* object exists.
*
* If the directory no longer exists by the time the temp_dir is destroyed,
* no cleanup happens.
*/
class temp_dir : boost::noncopyable
{
public:
temp_dir()
{
char buf[] = "tmpdir.XXXXXX";
m_path = std::string(mkdtemp(buf));
}
~temp_dir()
{
boost::filesystem::remove_all(path());
}
/// Return the temporary directory's full path.
const std::string &path() const { return m_path; }
private:
std::string m_path;
};
/** Temporary file.
*
* Automatically creates, and on destruction deletes, a temporary file.
*/
class temp_file : boost::noncopyable
{
public:
temp_file()
{
char buf[] = "tmp.XXXXXX";
const int fd = mkstemp(buf);
if (fd == -1) throw ErrnoException();
close(fd);
m_path = buf;
}
~temp_file()
{
boost::filesystem::remove(path());
}
/// Return the temporary file's full path.
const std::string &path() const { return m_path; }
private:
std::string m_path;
};
} // namespace util
#endif
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