Files
OpenVPNAdapter/openvpn/common/link.hpp
Sergey Abramchuk 86cc97e55f Squashed 'Sources/OpenVPN3/' content from commit 0a6e0b6e54
git-subtree-dir: Sources/OpenVPN3
git-subtree-split: 0a6e0b6e542c2d19de1f416c4caccd899d72831a
2020-02-24 14:43:11 +03:00

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C++

// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2017 OpenVPN Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see <http://www.gnu.org/licenses/>.
#ifndef OPENVPN_COMMON_LINK_H
#define OPENVPN_COMMON_LINK_H
#include <utility>
namespace openvpn {
// Link creates a sender-receiver relationship between two objects.
// SEND is the sender interface, while RECV is the receiver interface.
// The receiver class should publicly inherit from Link and implement
// the receiver interface.
// Multiple inheritance of Link is intended for objects that play a
// receiver role for multiple interfaces (such as the server-side
// client instance object), and for this reason RECV common base
// classes such as RC should be virtually inherited.
// Usage of Link may create a memory reference cycle between
// Link-derived objects and the SEND object. Therefore be sure
// to manually break cycles as part of an explicit stop() method.
template <typename SEND, typename RECV>
class Link : public RECV
{
protected:
Link() {}
Link(typename SEND::Ptr send_arg) : send(std::move(send_arg)) {}
Link(SEND* send_arg) : send(send_arg) {}
typename SEND::Ptr send;
};
}
#endif