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84 lines
3.9 KiB
84 lines
3.9 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2017 The Bitcoin Core developers |
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// Distributed under the MIT software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#ifndef BITCOIN_NET_PROCESSING_H |
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#define BITCOIN_NET_PROCESSING_H |
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#include <net.h> |
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#include <validationinterface.h> |
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#include <consensus/params.h> |
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/** Default for -maxorphantx, maximum number of orphan transactions kept in memory */ |
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static const unsigned int DEFAULT_MAX_ORPHAN_TRANSACTIONS = 100; |
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/** Expiration time for orphan transactions in seconds */ |
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static const int64_t ORPHAN_TX_EXPIRE_TIME = 20 * 60; |
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/** Minimum time between orphan transactions expire time checks in seconds */ |
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static const int64_t ORPHAN_TX_EXPIRE_INTERVAL = 5 * 60; |
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/** Default number of orphan+recently-replaced txn to keep around for block reconstruction */ |
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static const unsigned int DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN = 100; |
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/** Headers download timeout expressed in microseconds |
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* Timeout = base + per_header * (expected number of headers) */ |
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static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_BASE = 15 * 60 * 1000000; // 15 minutes |
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static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER = 1000; // 1ms/header |
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/** Protect at least this many outbound peers from disconnection due to slow/ |
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* behind headers chain. |
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*/ |
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static constexpr int32_t MAX_OUTBOUND_PEERS_TO_PROTECT_FROM_DISCONNECT = 4; |
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/** Timeout for (unprotected) outbound peers to sync to our chainwork, in seconds */ |
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static constexpr int64_t CHAIN_SYNC_TIMEOUT = 20 * 60; // 20 minutes |
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/** How frequently to check for stale tips, in seconds */ |
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static constexpr int64_t STALE_CHECK_INTERVAL = 2.5 * 60; // 2.5 minutes |
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/** How frequently to check for extra outbound peers and disconnect, in seconds */ |
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static constexpr int64_t EXTRA_PEER_CHECK_INTERVAL = 45; |
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/** Minimum time an outbound-peer-eviction candidate must be connected for, in order to evict, in seconds */ |
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static constexpr int64_t MINIMUM_CONNECT_TIME = 30; |
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class PeerLogicValidation : public CValidationInterface, public NetEventsInterface { |
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private: |
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CConnman* const connman; |
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public: |
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explicit PeerLogicValidation(CConnman* connman, CScheduler &scheduler); |
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void BlockConnected(const std::shared_ptr<const CBlock>& pblock, const CBlockIndex* pindexConnected, const std::vector<CTransactionRef>& vtxConflicted) override; |
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void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload) override; |
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void BlockChecked(const CBlock& block, const CValidationState& state) override; |
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void NewPoWValidBlock(const CBlockIndex *pindex, const std::shared_ptr<const CBlock>& pblock) override; |
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void InitializeNode(CNode* pnode) override; |
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void FinalizeNode(NodeId nodeid, bool& fUpdateConnectionTime) override; |
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/** Process protocol messages received from a given node */ |
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bool ProcessMessages(CNode* pfrom, std::atomic<bool>& interrupt) override; |
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/** |
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* Send queued protocol messages to be sent to a give node. |
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* |
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* @param[in] pto The node which we are sending messages to. |
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* @param[in] interrupt Interrupt condition for processing threads |
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* @return True if there is more work to be done |
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*/ |
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bool SendMessages(CNode* pto, std::atomic<bool>& interrupt) override; |
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void ConsiderEviction(CNode *pto, int64_t time_in_seconds); |
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void CheckForStaleTipAndEvictPeers(const Consensus::Params &consensusParams); |
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void EvictExtraOutboundPeers(int64_t time_in_seconds); |
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private: |
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int64_t m_stale_tip_check_time; //! Next time to check for stale tip |
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}; |
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struct CNodeStateStats { |
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int nMisbehavior; |
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int nSyncHeight; |
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int nCommonHeight; |
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std::vector<int> vHeightInFlight; |
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}; |
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/** Get statistics from node state */ |
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bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats); |
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/** Increase a node's misbehavior score. */ |
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void Misbehaving(NodeId nodeid, int howmuch); |
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#endif // BITCOIN_NET_PROCESSING_H
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