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99 lines
2.8 KiB
99 lines
2.8 KiB
/* |
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* ZeroTier One - Global Peer to Peer Ethernet |
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* Copyright (C) 2011-2014 ZeroTier Networks LLC |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* ZeroTier may be used and distributed under the terms of the GPLv3, which |
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html |
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* |
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* If you would like to embed ZeroTier into a commercial application or |
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* redistribute it in a modified binary form, please contact ZeroTier Networks |
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* LLC. Start here: http://www.zerotier.com/ |
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*/ |
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#ifndef ZT_SOCKET_HPP |
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#define ZT_SOCKET_HPP |
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#include "Constants.hpp" |
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#include "InetAddress.hpp" |
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#include "AtomicCounter.hpp" |
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#include "SharedPtr.hpp" |
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#include "NonCopyable.hpp" |
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/** |
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* Maximum discrete message length supported by all socket types |
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*/ |
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#define ZT_SOCKET_MAX_MESSAGE_LEN 2048 |
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namespace ZeroTier { |
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class Socket; |
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/** |
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* Base class for transport-layer socket implementations |
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*/ |
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class Socket : NonCopyable |
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{ |
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friend class SharedPtr<Socket>; |
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public: |
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enum Type |
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{ |
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ZT_SOCKET_TYPE_UDP_V4 = 1, |
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ZT_SOCKET_TYPE_UDP_V6 = 2, |
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ZT_SOCKET_TYPE_TCP_IN = 3, // incoming connection accepted from listen socket |
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ZT_SOCKET_TYPE_TCP_OUT = 4, // outgoing connection to remote endpoint |
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ZT_SOCKET_TYPE_ETHERNET = 5 // unused, for future SDN backplane support |
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}; |
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virtual ~Socket() {} |
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/** |
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* @return Socket type |
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*/ |
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inline Type type() const throw() { return _type; } |
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/** |
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* @return True if this is a UDP socket |
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*/ |
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inline bool udp() const throw() { return ((_type == ZT_SOCKET_TYPE_UDP_V4)||(_type == ZT_SOCKET_TYPE_UDP_V6)); } |
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/** |
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* @return True if this is a TCP socket |
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*/ |
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inline bool tcp() const throw() { return ((_type == ZT_SOCKET_TYPE_TCP_IN)||(_type == ZT_SOCKET_TYPE_TCP_OUT)); } |
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/** |
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* Send a ZeroTier message packet |
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* |
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* @param to Destination address (ignored in connected TCP sockets) |
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* @param msg Message data |
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* @param msglen Message length (max 16384 bytes) |
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* @return True if send appears successful on our end, false if e.g. address type unreachable from this socket |
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*/ |
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virtual bool send(const InetAddress &to,const void *msg,unsigned int msglen) = 0; |
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protected: |
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Socket(const Type &t) : _type(t) {} |
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Type _type; |
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AtomicCounter __refCount; |
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}; |
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} // namespace ZeroTier |
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#endif
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