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/*
* Copyright (C) 2016 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; version 3.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Thomas Voß <thomas.voss@canonical.com>
*
*/
#ifndef BIOMETRY_USER_H_
#define BIOMETRY_USER_H_
#include <biometry/visibility.h>
#include <iosfwd>
#include <sys/types.h>
namespace biometry
{
/// @brief User models
struct BIOMETRY_DLL_PUBLIC User
{
/// @brief root returns an instance of User corresponding to the system's root user.
static const User& root();
/// @brief current returns an instance of User corresponding to the currently active user.
static const User& current();
/// @brief User initializes a new instance with the given id.
User(uid_t id = root().id);
uid_t id; ///< @brief The numeric id of the user.
};
/// @brief operator< returns true iff lhs's id is smaller than rhs's id.
BIOMETRY_DLL_PUBLIC bool operator<(const User& lhs, const User& rhs);
/// @brief operator== returns true iff lhs's id equals rhs's id.
BIOMETRY_DLL_PUBLIC bool operator==(const User& lhs, const User& rhs);
/// @brief operator<< inserts user into out.
BIOMETRY_DLL_PUBLIC std::ostream& operator<<(std::ostream& out, const User& user);
/// @brief operator>> extracts user from in.
BIOMETRY_DLL_PUBLIC std::istream& operator>>(std::istream& in, User& user);
}
#endif // BIOMETRY_USER_H_
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