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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 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>
#include "Constants.hpp"
#include "Identity.hpp"
namespace ZeroTier {
class NodeConfig;
class Logger;
class Switch;
class Topology;
class SysEnv;
class CMWC4096;
class Service;
class Node;
class Multicaster;
class SoftwareUpdater;
class SocketManager;
class AntiRecursion;
/**
* 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() :
shutdownInProgress(false),
tcpTunnelingEnabled(false),
timeOfLastResynchronize(0),
timeOfLastPacketReceived(0),
log((Logger *)0),
prng((CMWC4096 *)0),
antiRec((AntiRecursion *)0),
mc((Multicaster *)0),
sw((Switch *)0),
sm((SocketManager *)0),
topology((Topology *)0),
sysEnv((SysEnv *)0),
nc((NodeConfig *)0),
updater((SoftwareUpdater *)0)
#ifndef __WINDOWS__
,netconfService((Service *)0)
#endif
{
}
// Full path to home folder
std::string homePath;
// This node's identity
Identity identity;
// Indicates that we are shutting down -- this is hacky, want to factor out
volatile bool shutdownInProgress;
// Are we in outgoing TCP failover mode?
volatile bool tcpTunnelingEnabled;
// Time network environment (e.g. fingerprint) last changed -- used to determine online-ness
volatile uint64_t timeOfLastResynchronize;
// Time last packet was received -- from anywhere. This is updated in Peer::receive()
// via an ugly const_cast<>.
volatile uint64_t timeOfLastPacketReceived;
/*
* Order matters a bit here. These are constructed in this order
* and then deleted in the opposite order on Node exit. The order ensures
* that things that are needed are there before they're needed.
*
* These are constant and never null after startup unless indicated.
*/
Logger *log; // null if logging is disabled
CMWC4096 *prng;
AntiRecursion *antiRec;
Multicaster *mc;
Switch *sw;
SocketManager *sm;
Topology *topology;
SysEnv *sysEnv;
NodeConfig *nc;
Node *node;
SoftwareUpdater *updater; // null if software updates are not enabled
#ifndef __WINDOWS__
Service *netconfService; // null if no netconf service running
#endif
};
} // namespace ZeroTier
#endif
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