/*
 * Copyright (C) 2015 ScyllaDB
 */

/*
 * This file is part of Scylla.
 *
 * Scylla is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Scylla 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 Scylla.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <stdlib.h>
#include <boost/filesystem.hpp>

#pragma once

// Creates a new empty directory with arbitrary name, which will be removed
// automatically when tmpdir object goes out of scope.
struct tmpdir {
    tmpdir() {
        char tmp[] = "tmpdir_XXXXXX";
        auto * dir = ::mkdtemp(tmp);
        if (dir == NULL) {
            throw std::runtime_error("Could not create temp dir");
        }
        path = dir;
        //std::cout << path << std::endl;
    }
    tmpdir(tmpdir&& v)
        : path(std::move(v.path)) {
        assert(v.path.empty());
    }
    tmpdir(const tmpdir&) = delete;
    ~tmpdir() {
        if (!path.empty()) {
            boost::filesystem::remove_all(path.c_str());
        }
    }
    tmpdir & operator=(tmpdir&& v) {
        if (&v != this) {
            this->~tmpdir();
            new (this) tmpdir(std::move(v));
        }
        return *this;
    }
    tmpdir & operator=(const tmpdir&) = delete;
    sstring path;
};