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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_ADDRDB_H
#define BITCOIN_ADDRDB_H
#include <fs.h>
#include <net_types.h>
#include <serialize.h>
#include <util/result.h>
#include <memory>
#include <string>
#include <vector>
class ArgsManager;
class AddrMan;
class CAddress;
class CDataStream;
class CChainParams;
bool DumpPeerAddresses(const CChainParams &chainParams, const ArgsManager &args,
const AddrMan &addr);
/** Only used by tests. */
void ReadFromStream(const CChainParams &chainParams, AddrMan &addr,
CDataStream &ssPeers);
class CBanEntry {
public:
static const int CURRENT_VERSION = 1;
int nVersion;
int64_t nCreateTime;
int64_t nBanUntil;
CBanEntry() { SetNull(); }
explicit CBanEntry(int64_t nCreateTimeIn) {
SetNull();
nCreateTime = nCreateTimeIn;
}
SERIALIZE_METHODS(CBanEntry, obj) {
//! For backward compatibility
uint8_t ban_reason = 2;
READWRITE(obj.nVersion, obj.nCreateTime, obj.nBanUntil, ban_reason);
}
void SetNull() {
nVersion = CBanEntry::CURRENT_VERSION;
nCreateTime = 0;
nBanUntil = 0;
}
};
/** Access to the banlist database (banlist.dat) */
class CBanDB {
private:
const fs::path m_ban_list_path;
const CChainParams &chainParams;
public:
CBanDB(fs::path ban_list_path, const CChainParams &_chainParams);
bool Write(const banmap_t &banSet);
bool Read(banmap_t &banSet);
};
/** Returns an error string on failure */
util::Result<std::unique_ptr<AddrMan>>
LoadAddrman(const CChainParams &chainparams, const std::vector<bool> &asmap,
const ArgsManager &args);
/**
* Dump the anchor IP address database (anchors.dat)
*
* Anchors are last known outgoing block-relay-only peers that are
* tried to re-connect to on startup.
*/
void DumpAnchors(const CChainParams &chainParams,
const fs::path &anchors_db_path,
const std::vector<CAddress> &anchors);
/**
* Read the anchor IP address database (anchors.dat)
*
* Deleting anchors.dat is intentional as it avoids renewed peering to anchors
* after an unclean shutdown and thus potential exploitation of the anchor peer
* policy.
*/
std::vector<CAddress> ReadAnchors(const CChainParams &chainParams,
const fs::path &anchors_db_path);
#endif // BITCOIN_ADDRDB_H

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