UDisks2.hxx

/*
 * Copyright 2003-2018 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef UDISKS2_HXX
#define UDISKS2_HXX

#include <string>
#include <functional>

#define UDISKS2_PATH "/org/freedesktop/UDisks2"
#define UDISKS2_INTERFACE "org.freedesktop.UDisks2"
#define UDISKS2_FILESYSTEM_INTERFACE "org.freedesktop.UDisks2.Filesystem"

namespace ODBus {
class Message;
class ReadMessageIter;
}

namespace UDisks2 {

struct Object {
	const std::string path;

	std::string drive_id, block_id;

	bool is_filesystem = false;

	explicit Object(const char *_path) noexcept
		:path(_path) {}

	bool IsValid() const noexcept {
		return is_filesystem &&
			(!drive_id.empty() || !block_id.empty());
	}

	template<typename I>
	bool IsId(I &&other) const noexcept {
		if (!drive_id.empty())
			return drive_id == std::forward<I>(other);
		else if (!block_id.empty())
			return block_id == std::forward<I>(other);
		else
			return false;
	}

	std::string GetUri() const noexcept {
		if (!drive_id.empty())
			return "udisks://" + drive_id;
		else if (!block_id.empty())
			return "udisks://" + block_id;
		else
			return {};
	}
};

void
ParseObject(Object &o, ODBus::ReadMessageIter &&i) noexcept;

/**
 * Parse objects from an array/dictionary and invoke the callback for
 * each.
 */
void
ParseObjects(ODBus::ReadMessageIter &&i,
	     std::function<void(Object &&o)> callback);

/**
 * Parse objects from a GetManagedObjects reply and invoke the
 * callback for each.
 *
 * Throws on error.
 */
void
ParseObjects(ODBus::Message &reply,
	     std::function<void(Object &&o)> callback);

} // namespace UDisks2

#endif