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authorAdam Ierymenko <adam.ierymenko@gmail.com>2015-07-06 13:51:25 -0700
committerAdam Ierymenko <adam.ierymenko@gmail.com>2015-07-06 13:51:25 -0700
commitfeddd946f9d3ac6a643968582610eb4ffaebb69d (patch)
tree9660a442c5b76d6cb9722a1febcbfd5e9b3c777b /node/Path.hpp
parent6bfbc43e3c1de27648c974fc783573487391e0a2 (diff)
downloadinfinitytier-feddd946f9d3ac6a643968582610eb4ffaebb69d.tar.gz
infinitytier-feddd946f9d3ac6a643968582610eb4ffaebb69d.zip
For curiosity add Salsa20/8 to benchmarks.
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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_PATH_HPP
-#define ZT_PATH_HPP
-
-#include <stdint.h>
-#include <string.h>
-
-#include <stdexcept>
-#include <string>
-#include <algorithm>
-
-#include "Constants.hpp"
-#include "Node.hpp"
-#include "InetAddress.hpp"
-#include "Utils.hpp"
-#include "AntiRecursion.hpp"
-#include "RuntimeEnvironment.hpp"
-
-namespace ZeroTier {
-
-/**
- * WAN address and protocol for reaching a peer
- *
- * This structure is volatile and memcpy-able, and depends on
- * InetAddress being similarly safe.
- */
-class Path
-{
-public:
- Path() :
- _addr(),
- _lastSend(0),
- _lastReceived(0),
- _fixed(false) {}
-
- Path(const Path &p) throw() { memcpy(this,&p,sizeof(Path)); }
-
- Path(const InetAddress &addr,bool fixed) :
- _addr(addr),
- _lastSend(0),
- _lastReceived(0),
- _fixed(fixed) {}
-
- inline void init(const InetAddress &addr,bool fixed)
- {
- _addr = addr;
- _lastSend = 0;
- _lastReceived = 0;
- _fixed = fixed;
- }
-
- inline Path &operator=(const Path &p)
- {
- if (this != &p)
- memcpy(this,&p,sizeof(Path));
- return *this;
- }
-
- inline const InetAddress &address() const throw() { return _addr; }
-
- inline uint64_t lastSend() const throw() { return _lastSend; }
- inline uint64_t lastReceived() const throw() { return _lastReceived; }
-
- /**
- * Called when a packet is sent to this path
- *
- * This is called automatically by Path::send().
- *
- * @param t Time of send
- */
- inline void sent(uint64_t t)
- throw()
- {
- _lastSend = t;
- }
-
- /**
- * Called when a packet is received from this path
- *
- * @param t Time of receive
- */
- inline void received(uint64_t t)
- throw()
- {
- _lastReceived = t;
- }
-
- /**
- * @return Is this a fixed path?
- */
- inline bool fixed() const throw() { return _fixed; }
-
- /**
- * @param f New value of fixed path flag
- */
- inline void setFixed(bool f) throw() { _fixed = f; }
-
- /**
- * @param now Current time
- * @return True if this path is fixed or has received data in last ACTIVITY_TIMEOUT ms
- */
- inline bool active(uint64_t now) const
- throw()
- {
- return ( (_fixed) || ((now - _lastReceived) < ZT_PEER_ACTIVITY_TIMEOUT) );
- }
-
- /**
- * Send a packet via this path
- *
- * @param RR Runtime environment
- * @param data Packet data
- * @param len Packet length
- * @param now Current time
- * @return True if transport reported success
- */
- inline bool send(const RuntimeEnvironment *RR,const void *data,unsigned int len,uint64_t now)
- {
- if (RR->node->putPacket(_addr,data,len)) {
- sent(now);
- RR->antiRec->logOutgoingZT(data,len);
- return true;
- }
- return false;
- }
-
- /**
- * @param now Current time
- * @return Human-readable address and other information about this path
- */
- inline std::string toString(uint64_t now) const
- {
- char tmp[1024];
- Utils::snprintf(tmp,sizeof(tmp),"%s(%s)",
- _addr.toString().c_str(),
- ((_fixed) ? "fixed" : (active(now) ? "active" : "inactive"))
- );
- return std::string(tmp);
- }
-
- inline operator bool() const throw() { return (_addr); }
-
- inline bool operator==(const Path &p) const throw() { return (_addr == p._addr); }
- inline bool operator!=(const Path &p) const throw() { return (_addr != p._addr); }
- inline bool operator<(const Path &p) const throw() { return (_addr < p._addr); }
- inline bool operator>(const Path &p) const throw() { return (_addr > p._addr); }
- inline bool operator<=(const Path &p) const throw() { return (_addr <= p._addr); }
- inline bool operator>=(const Path &p) const throw() { return (_addr >= p._addr); }
-
-private:
- InetAddress _addr;
- uint64_t _lastSend;
- uint64_t _lastReceived;
- bool _fixed;
-};
-
-} // namespace ZeroTier
-
-#endif