ZeroTierOne/node/RuntimeEnvironment.hpp

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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2012-2013 ZeroTier Networks LLC
*
* 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_RUNTIMEENVIRONMENT_HPP
#define _ZT_RUNTIMEENVIRONMENT_HPP
#include <string>
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#include "Constants.hpp"
#include "Identity.hpp"
#include "Condition.hpp"
namespace ZeroTier {
class NodeConfig;
class Logger;
class Demarc;
class Switch;
class Topology;
class SysEnv;
class Multicaster;
class CMWC4096;
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class Service;
/**
* Holds global state for an instance of ZeroTier::Node
*
* I do not believe in mutable static variables, period, or in global static
* instances of objects that don't basically represent constants. It makes
* unit testing, embedding, threading, and other things hard and is poor
* practice.
*
* So we put everything that we would want to be global, like Logger, here
* and we give everybody this as _r. The Node creates and initializes this
* on startup and deletes things on shutdown.
*/
class RuntimeEnvironment
{
public:
RuntimeEnvironment() :
log((Logger *)0),
prng((CMWC4096 *)0),
demarc((Demarc *)0),
multicaster((Multicaster *)0),
sw((Switch *)0),
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topology((Topology *)0),
sysEnv((SysEnv *)0),
nc((NodeConfig *)0)
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#ifndef __WINDOWS__
,netconfService((Service *)0)
#endif
{
}
std::string homePath;
// signal() to prematurely interrupt main loop wait
Condition mainLoopWaitCondition;
Identity identity;
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// Order matters a bit here. These are constructed in this order
// and then deleted in the opposite order on Node exit.
Logger *log; // may be null
CMWC4096 *prng;
Demarc *demarc;
Multicaster *multicaster;
Switch *sw;
Topology *topology;
SysEnv *sysEnv;
NodeConfig *nc;
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#ifndef __WINDOWS__
Service *netconfService; // may be null
#endif
};
} // namespace ZeroTier
#endif