diff options
Diffstat (limited to 'src/main.h')
| -rw-r--r-- | src/main.h | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/src/main.h b/src/main.h index cad7eebfb7..7939b087ec 100644 --- a/src/main.h +++ b/src/main.h @@ -72,9 +72,17 @@ static const int MAX_SCRIPTCHECK_THREADS = 16; /** -par default (number of script-checking threads, 0 = auto) */ static const int DEFAULT_SCRIPTCHECK_THREADS = 0; /** Number of blocks that can be requested at any given time from a single peer. */ -static const int MAX_BLOCKS_IN_TRANSIT_PER_PEER = 128; -/** Timeout in seconds before considering a block download peer unresponsive. */ -static const unsigned int BLOCK_DOWNLOAD_TIMEOUT = 60; +static const int MAX_BLOCKS_IN_TRANSIT_PER_PEER = 16; +/** Timeout in seconds during which a peer must stall block download progress before being disconnected. */ +static const unsigned int BLOCK_STALLING_TIMEOUT = 2; +/** Number of headers sent in one getheaders result. We rely on the assumption that if a peer sends + * less than this number, we reached their tip. Changing this value is a protocol upgrade. */ +static const unsigned int MAX_HEADERS_RESULTS = 2000; +/** Size of the "block download window": how far ahead of our current height do we fetch? + * Larger windows tolerate larger download speed differences between peer, but increase the potential + * 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; /** "reject" message codes **/ static const unsigned char REJECT_MALFORMED = 0x01; @@ -110,6 +118,9 @@ extern bool fIsBareMultisigStd; extern unsigned int nCoinCacheSize; extern CFeeRate minRelayTxFee; +// Best header we've seen so far (used for getheaders queries' starting points). +extern CBlockIndex *pindexBestHeader; + // Minimum disk space required - used in CheckDiskSpace() static const uint64_t nMinDiskSpace = 52428800; @@ -137,8 +148,6 @@ void RegisterNodeSignals(CNodeSignals& nodeSignals); /** Unregister a network node */ void UnregisterNodeSignals(CNodeSignals& nodeSignals); -void PushGetBlocks(CNode* pnode, CBlockIndex* pindexBegin, uint256 hashEnd); - /** Process an incoming block */ bool ProcessBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDiskBlockPos *dbp = NULL); /** Check whether enough disk space is available for an incoming block */ @@ -193,6 +202,8 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa struct CNodeStateStats { int nMisbehavior; int nSyncHeight; + int nCommonHeight; + std::vector<int> vHeightInFlight; }; struct CDiskTxPos : public CDiskBlockPos @@ -439,9 +450,6 @@ bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex // Apply the effects of this block (with given index) on the UTXO set represented by coins bool ConnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& coins, bool fJustCheck = false); -// Add this block to the block index, and if necessary, switch the active block chain to this -bool AddToBlockIndex(CBlock& block, CValidationState& state, const CDiskBlockPos& pos); - // Context-independent validity checks bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, bool fCheckPOW = true); bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW = true, bool fCheckMerkleRoot = true); @@ -449,7 +457,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW = t // 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); -bool AcceptBlockHeader(CBlockHeader& block, CValidationState& state, CBlockIndex **ppindex= NULL); +bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBlockIndex **ppindex= NULL); |