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-/*
- * ZeroTier One - Network Virtualization Everywhere
- * Copyright (C) 2011-2015 ZeroTier, Inc.
- *
- * 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 3 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, see <http://www.gnu.org/licenses/>.
- *
- * --
- *
- * ZeroTier may be used and distributed under the terms of the GPLv3, which
- * are available at: http://www.gnu.org/licenses/gpl-3.0.html
- *
- * If you would like to embed ZeroTier into a commercial application or
- * redistribute it in a modified binary form, please contact ZeroTier Networks
- * LLC. Start here: http://www.zerotier.com/
- */
-
-#ifndef ZT_SOCKET_HPP
-#define ZT_SOCKET_HPP
-
-#include "Constants.hpp"
-#include "InetAddress.hpp"
-#include "AtomicCounter.hpp"
-#include "SharedPtr.hpp"
-#include "NonCopyable.hpp"
-
-/**
- * Maximum discrete message length supported by all socket types
- */
-#define ZT_SOCKET_MAX_MESSAGE_LEN 2048
-
-namespace ZeroTier {
-
-class Socket;
-
-/**
- * Base class for transport-layer socket implementations
- */
-class Socket : NonCopyable
-{
- friend class SharedPtr<Socket>;
-
-public:
- enum Type
- {
- ZT_SOCKET_TYPE_UDP_V4 = 1,
- ZT_SOCKET_TYPE_UDP_V6 = 2,
- ZT_SOCKET_TYPE_TCP_IN = 3, // incoming connection accepted from listen socket
- ZT_SOCKET_TYPE_TCP_OUT = 4, // outgoing connection to remote endpoint
- ZT_SOCKET_TYPE_ETHERNET = 5 // unused, for future SDN backplane support
- };
-
- virtual ~Socket() {}
-
- /**
- * @return Socket type
- */
- inline Type type() const throw() { return _type; }
-
- /**
- * @return True if this is a UDP socket
- */
- inline bool udp() const throw() { return ((_type == ZT_SOCKET_TYPE_UDP_V4)||(_type == ZT_SOCKET_TYPE_UDP_V6)); }
-
- /**
- * @return True if this is a TCP socket
- */
- inline bool tcp() const throw() { return ((_type == ZT_SOCKET_TYPE_TCP_IN)||(_type == ZT_SOCKET_TYPE_TCP_OUT)); }
-
- /**
- * Send a ZeroTier message packet
- *
- * @param to Destination address (ignored in connected TCP sockets)
- * @param msg Message data
- * @param msglen Message length (max 16384 bytes)
- * @return True if send appears successful on our end, false if e.g. address type unreachable from this socket
- */
- virtual bool send(const InetAddress &to,const void *msg,unsigned int msglen) = 0;
-
-protected:
- Socket(const Type &t) : _type(t) {}
-
- Type _type;
- AtomicCounter __refCount;
-};
-
-} // namespace ZeroTier
-
-#endif