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NetDb.h
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NetDb.h
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#ifndef NETDB_H__
#define NETDB_H__
#include <inttypes.h>
#include <set>
#include <map>
#include <list>
#include <string>
#include <thread>
#include <mutex>
#include <boost/filesystem.hpp>
#include "Queue.h"
#include "I2NPProtocol.h"
#include "RouterInfo.h"
#include "LeaseSet.h"
#include "Tunnel.h"
#include "TunnelPool.h"
#include "Reseed.h"
#include "NetDbRequests.h"
namespace i2p
{
namespace data
{
class NetDb
{
public:
NetDb ();
~NetDb ();
void Start ();
void Stop ();
void AddRouterInfo (const uint8_t * buf, int len);
void AddRouterInfo (const IdentHash& ident, const uint8_t * buf, int len);
void AddLeaseSet (const IdentHash& ident, const uint8_t * buf, int len, std::shared_ptr<i2p::tunnel::InboundTunnel> from);
std::shared_ptr<RouterInfo> FindRouter (const IdentHash& ident) const;
std::shared_ptr<LeaseSet> FindLeaseSet (const IdentHash& destination) const;
void RequestDestination (const IdentHash& destination, RequestedDestination::RequestComplete requestComplete = nullptr);
void HandleDatabaseStoreMsg (I2NPMessage * msg);
void HandleDatabaseSearchReplyMsg (I2NPMessage * msg);
void HandleDatabaseLookupMsg (I2NPMessage * msg);
std::shared_ptr<const RouterInfo> GetRandomRouter () const;
std::shared_ptr<const RouterInfo> GetRandomRouter (std::shared_ptr<const RouterInfo> compatibleWith) const;
std::shared_ptr<const RouterInfo> GetHighBandwidthRandomRouter (std::shared_ptr<const RouterInfo> compatibleWith) const;
std::shared_ptr<const RouterInfo> GetRandomPeerTestRouter () const;
std::shared_ptr<const RouterInfo> GetRandomIntroducer () const;
std::shared_ptr<const RouterInfo> GetClosestFloodfill (const IdentHash& destination, const std::set<IdentHash>& excluded) const;
std::vector<IdentHash> GetClosestFloodfills (const IdentHash& destination, size_t num) const;
std::shared_ptr<const RouterInfo> GetClosestNonFloodfill (const IdentHash& destination, const std::set<IdentHash>& excluded) const;
void SetUnreachable (const IdentHash& ident, bool unreachable);
void PostI2NPMsg (I2NPMessage * msg);
void Reseed ();
// for web interface
int GetNumRouters () const { return m_RouterInfos.size (); };
int GetNumFloodfills () const { return m_Floodfills.size (); };
int GetNumLeaseSets () const { return m_LeaseSets.size (); };
private:
bool CreateNetDb(boost::filesystem::path directory);
void Load (const char * directory);
void SaveUpdated (const char * directory);
void Run (); // exploratory thread
void Explore (int numDestinations);
void Publish ();
void ManageLeaseSets ();
void ManageRequests ();
template<typename Filter>
std::shared_ptr<const RouterInfo> GetRandomRouter (Filter filter) const;
private:
std::map<IdentHash, std::shared_ptr<LeaseSet> > m_LeaseSets;
mutable std::mutex m_RouterInfosMutex;
std::map<IdentHash, std::shared_ptr<RouterInfo> > m_RouterInfos;
mutable std::mutex m_FloodfillsMutex;
std::list<std::shared_ptr<RouterInfo> > m_Floodfills;
bool m_IsRunning;
std::thread * m_Thread;
i2p::util::Queue<I2NPMessage> m_Queue; // of I2NPDatabaseStoreMsg
Reseeder * m_Reseeder;
friend NetDbRequests;
NetDbRequests m_Requests;
static const char m_NetDbPath[];
};
extern NetDb netdb;
}
}
#endif