diff options
Diffstat (limited to 'src/main.h')
| -rw-r--r-- | src/main.h | 111 |
1 files changed, 26 insertions, 85 deletions
diff --git a/src/main.h b/src/main.h index 90b809e85e..abaedae207 100644 --- a/src/main.h +++ b/src/main.h @@ -82,21 +82,13 @@ static const unsigned int MAX_HEADERS_RESULTS = 2000; * degree of disordering of blocks on disk (which make reindexing and in the future perhaps pruning * harder). We'll probably want to make this a per-peer adaptive value at some point. */ static const unsigned int BLOCK_DOWNLOAD_WINDOW = 1024; -/** Time to wait (in seconds) between writing blockchain state to disk. */ -static const unsigned int DATABASE_WRITE_INTERVAL = 3600; +/** Time to wait (in seconds) between writing blocks/block index to disk. */ +static const unsigned int DATABASE_WRITE_INTERVAL = 60 * 60; +/** Time to wait (in seconds) between flushing chainstate to disk. */ +static const unsigned int DATABASE_FLUSH_INTERVAL = 24 * 60 * 60; /** Maximum length of reject messages. */ static const unsigned int MAX_REJECT_MESSAGE_LENGTH = 111; -/** "reject" message codes */ -static const unsigned char REJECT_MALFORMED = 0x01; -static const unsigned char REJECT_INVALID = 0x10; -static const unsigned char REJECT_OBSOLETE = 0x11; -static const unsigned char REJECT_DUPLICATE = 0x12; -static const unsigned char REJECT_NONSTANDARD = 0x40; -static const unsigned char REJECT_DUST = 0x41; -static const unsigned char REJECT_INSUFFICIENTFEE = 0x42; -static const unsigned char REJECT_CHECKPOINT = 0x43; - struct BlockHasher { size_t operator()(const uint256& hash) const { return hash.GetCheapHash(); } @@ -119,7 +111,7 @@ extern bool fTxIndex; extern bool fIsBareMultisigStd; extern bool fCheckBlockIndex; extern bool fCheckpointsEnabled; -extern unsigned int nCoinCacheSize; +extern size_t nCoinCacheUsage; extern CFeeRate minRelayTxFee; /** Best header we've seen so far (used for getheaders queries' starting points). */ @@ -161,10 +153,11 @@ void UnregisterNodeSignals(CNodeSignals& nodeSignals); * @param[out] state This may be set to an Error state if any error occurred processing it, including during validation/connection/etc of otherwise unrelated blocks during reorganisation; or it may be set to an Invalid state if pblock is itself invalid (but this is not guaranteed even when the block is checked). If you want to *possibly* get feedback on whether pblock is valid, you must also install a CValidationInterface (see validationinterface.h) - this will have its BlockChecked method called whenever *any* block completes validation. * @param[in] pfrom The node which we are receiving the block from; it is added to mapBlockSource and may be penalised if the block is invalid. * @param[in] pblock The block we want to process. + * @param[in] fForceProcessing Process this block even if unrequested; used for non-network block sources and whitelisted peers. * @param[out] dbp If pblock is stored to disk (or already there), this will be set to its location. * @return True if state.IsValid() */ -bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDiskBlockPos *dbp = NULL); +bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, bool fForceProcessing, CDiskBlockPos *dbp); /** Check whether enough disk space is available for an incoming block */ bool CheckDiskSpace(uint64_t nAdditionalBytes = 0); /** Open a block file (blk?????.dat) */ @@ -192,15 +185,17 @@ bool ProcessMessages(CNode* pfrom); bool SendMessages(CNode* pto, bool fSendTrickle); /** Run an instance of the script checking thread */ void ThreadScriptCheck(); +/** Try to detect Partition (network isolation) attacks against us */ +void PartitionCheck(bool (*initialDownloadCheck)(), CCriticalSection& cs, const CChain& chain, int64_t nPowTargetSpacing); /** Check whether we are doing an initial block download (synchronizing from disk or network) */ bool IsInitialBlockDownload(); /** Format a string that describes several potential problems detected by the core */ -std::string GetWarnings(std::string strFor); +std::string GetWarnings(const std::string& strFor); /** Retrieve a transaction (from memory pool, or from disk, if possible) */ bool GetTransaction(const uint256 &hash, CTransaction &tx, uint256 &hashBlock, bool fAllowSlow = false); /** Find the best known block, and make it the tip of the block chain */ bool ActivateBestChain(CValidationState &state, CBlock *pblock = NULL); -CAmount GetBlockValue(int nHeight, const CAmount& nFees); +CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams); /** * Prune block and undo files (blk???.dat and undo???.dat) so that the disk space used is less than a user-defined target. @@ -226,8 +221,6 @@ void UnlinkPrunedFiles(std::set<int>& setFilesToPrune); /** Create a new block index entry for a given block hash */ CBlockIndex * InsertBlockIndex(uint256 hash); -/** Abort with a message */ -bool AbortNode(const std::string &msg, const std::string &userMessage=""); /** Get statistics from node state */ bool GetNodeStateStats(NodeId nodeid, CNodeStateStats &stats); /** Increase a node's misbehavior score. */ @@ -332,7 +325,18 @@ bool CheckTransaction(const CTransaction& tx, CValidationState& state); */ bool IsStandardTx(const CTransaction& tx, std::string& reason); -bool IsFinalTx(const CTransaction &tx, int nBlockHeight = 0, int64_t nBlockTime = 0); +/** + * Check if transaction is final and can be included in a block with the + * specified height and time. Consensus critical. + */ +bool IsFinalTx(const CTransaction &tx, int nBlockHeight, int64_t nBlockTime); + +/** + * Check if transaction will be final in the next block to be created. + * + * Calls IsFinalTx() with current block height and appropriate block time. + */ +bool CheckFinalTx(const CTransaction &tx); /** * Closure representing one script verification @@ -370,7 +374,7 @@ public: /** Functions for disk access for blocks */ -bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos); +bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos, const CMessageHeader::MessageStartChars& messageStart); bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos); bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex); @@ -397,8 +401,8 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn /** Check a block is completely valid from start to finish (only works on top of our current best block, with cs_main held) */ bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex *pindexPrev, bool fCheckPOW = true, bool fCheckMerkleRoot = true); -/** Store block on disk. If dbp is provided, the file is known to already reside on disk */ -bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex **pindex, CDiskBlockPos* dbp = NULL); +/** Store block on disk. If dbp is non-NULL, the file is known to already reside on disk */ +bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex **pindex, bool fRequested, CDiskBlockPos* dbp); bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBlockIndex **ppindex= NULL); @@ -457,69 +461,6 @@ public: } }; -/** Capture information about block/transaction validation */ -class CValidationState { -private: - enum mode_state { - MODE_VALID, //! everything ok - MODE_INVALID, //! network rule violation (DoS value may be set) - MODE_ERROR, //! run-time error - } mode; - int nDoS; - std::string strRejectReason; - unsigned char chRejectCode; - bool corruptionPossible; -public: - CValidationState() : mode(MODE_VALID), nDoS(0), chRejectCode(0), corruptionPossible(false) {} - bool DoS(int level, bool ret = false, - unsigned char chRejectCodeIn=0, std::string strRejectReasonIn="", - bool corruptionIn=false) { - chRejectCode = chRejectCodeIn; - strRejectReason = strRejectReasonIn; - corruptionPossible = corruptionIn; - if (mode == MODE_ERROR) - return ret; - nDoS += level; - mode = MODE_INVALID; - return ret; - } - bool Invalid(bool ret = false, - unsigned char _chRejectCode=0, std::string _strRejectReason="") { - return DoS(0, ret, _chRejectCode, _strRejectReason); - } - bool Error(std::string strRejectReasonIn="") { - if (mode == MODE_VALID) - strRejectReason = strRejectReasonIn; - mode = MODE_ERROR; - return false; - } - bool Abort(const std::string &msg) { - AbortNode(msg); - return Error(msg); - } - bool IsValid() const { - return mode == MODE_VALID; - } - bool IsInvalid() const { - return mode == MODE_INVALID; - } - bool IsError() const { - return mode == MODE_ERROR; - } - bool IsInvalid(int &nDoSOut) const { - if (IsInvalid()) { - nDoSOut = nDoS; - return true; - } - return false; - } - bool CorruptionPossible() const { - return corruptionPossible; - } - unsigned char GetRejectCode() const { return chRejectCode; } - std::string GetRejectReason() const { return strRejectReason; } -}; - /** RAII wrapper for VerifyDB: Verify consistency of the block and coin databases */ class CVerifyDB { public: |