diff options
Diffstat (limited to 'src/main.cpp')
-rw-r--r-- | src/main.cpp | 69 |
1 files changed, 48 insertions, 21 deletions
diff --git a/src/main.cpp b/src/main.cpp index baad7fc050..d870280e99 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -75,7 +75,7 @@ uint64_t nPruneTarget = 0; bool fAlerts = DEFAULT_ALERTS; /** Fees smaller than this (in satoshi) are considered zero fee (for relaying and mining) */ -CFeeRate minRelayTxFee = CFeeRate(5000); +CFeeRate minRelayTxFee = CFeeRate(1000); CTxMemPool mempool(::minRelayTxFee); @@ -740,17 +740,14 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state) return true; } -CAmount GetMinRelayFee(const CTransaction& tx, unsigned int nBytes, bool fAllowFree) +CAmount GetMinRelayFee(const CTransaction& tx, const CTxMemPool& pool, unsigned int nBytes, bool fAllowFree) { - { - LOCK(mempool.cs); - uint256 hash = tx.GetHash(); - double dPriorityDelta = 0; - CAmount nFeeDelta = 0; - mempool.ApplyDeltas(hash, dPriorityDelta, nFeeDelta); - if (dPriorityDelta > 0 || nFeeDelta > 0) - return 0; - } + uint256 hash = tx.GetHash(); + double dPriorityDelta = 0; + CAmount nFeeDelta = 0; + pool.ApplyDeltas(hash, dPriorityDelta, nFeeDelta); + if (dPriorityDelta > 0 || nFeeDelta > 0) + return 0; CAmount nMinFee = ::minRelayTxFee.GetFee(nBytes); @@ -779,7 +776,7 @@ static std::string FormatStateMessage(const CValidationState &state) } bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransaction &tx, bool fLimitFree, - bool* pfMissingInputs, bool fRejectAbsurdFee) + bool* pfMissingInputs, bool fOverrideMempoolLimit, bool fRejectAbsurdFee) { AssertLockHeld(cs_main); if (pfMissingInputs) @@ -879,17 +876,20 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa CAmount nFees = nValueIn-nValueOut; double dPriority = view.GetPriority(tx, chainActive.Height()); - CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), mempool.HasNoInputsOf(tx)); + CTxMemPoolEntry entry(tx, nFees, GetTime(), dPriority, chainActive.Height(), pool.HasNoInputsOf(tx)); unsigned int nSize = entry.GetTxSize(); // Don't accept it if it can't get into a block - CAmount txMinFee = GetMinRelayFee(tx, nSize, true); + CAmount txMinFee = GetMinRelayFee(tx, pool, nSize, true); if (fLimitFree && nFees < txMinFee) return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "insufficient fee", false, strprintf("%d < %d", nFees, txMinFee)); - // Require that free transactions have sufficient priority to be mined in the next block. - if (GetBoolArg("-relaypriority", true) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(view.GetPriority(tx, chainActive.Height() + 1))) { + CAmount mempoolRejectFee = pool.GetMinFee(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000).GetFee(nSize); + if (mempoolRejectFee > 0 && nFees < mempoolRejectFee) { + return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool min fee not met", false, strprintf("%d < %d", nFees, mempoolRejectFee)); + } else if (GetBoolArg("-relaypriority", true) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(view.GetPriority(tx, chainActive.Height() + 1))) { + // Require that free transactions have sufficient priority to be mined in the next block. return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "insufficient priority"); } @@ -954,6 +954,17 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa // Store transaction in memory pool.addUnchecked(hash, entry, setAncestors, !IsInitialBlockDownload()); + + // trim mempool and check if tx was trimmed + if (!fOverrideMempoolLimit) { + int expired = pool.Expire(GetTime() - GetArg("-mempoolexpiry", DEFAULT_MEMPOOL_EXPIRY) * 60 * 60); + if (expired != 0) + LogPrint("mempool", "Expired %i transactions from the memory pool\n", expired); + + pool.TrimToSize(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000); + if (!pool.exists(tx.GetHash())) + return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "mempool full"); + } } SyncWithWallets(tx, NULL); @@ -2020,7 +2031,7 @@ void static UpdateTip(CBlockIndex *pindexNew) { } } -/** Disconnect chainActive's tip. */ +/** Disconnect chainActive's tip. You want to manually re-limit mempool size after this */ bool static DisconnectTip(CValidationState &state) { CBlockIndex *pindexDelete = chainActive.Tip(); assert(pindexDelete); @@ -2047,7 +2058,7 @@ bool static DisconnectTip(CValidationState &state) { // ignore validation errors in resurrected transactions list<CTransaction> removed; CValidationState stateDummy; - if (tx.IsCoinBase() || !AcceptToMemoryPool(mempool, stateDummy, tx, false, NULL)) { + if (tx.IsCoinBase() || !AcceptToMemoryPool(mempool, stateDummy, tx, false, NULL, true)) { mempool.remove(tx, removed, true); } else if (mempool.exists(tx.GetHash())) { vHashUpdate.push_back(tx.GetHash()); @@ -2220,9 +2231,11 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo const CBlockIndex *pindexFork = chainActive.FindFork(pindexMostWork); // Disconnect active blocks which are no longer in the best chain. + bool fBlocksDisconnected = false; while (chainActive.Tip() && chainActive.Tip() != pindexFork) { if (!DisconnectTip(state)) return false; + fBlocksDisconnected = true; } // Build list of new blocks to connect. @@ -2268,6 +2281,9 @@ static bool ActivateBestChainStep(CValidationState &state, CBlockIndex *pindexMo } } + if (fBlocksDisconnected) + mempool.TrimToSize(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000); + // Callbacks/notifications for a new best chain. if (fInvalidFound) CheckForkWarningConditionsOnNewFork(vpindexToConnect.back()); @@ -2354,6 +2370,8 @@ bool InvalidateBlock(CValidationState& state, CBlockIndex *pindex) { } } + mempool.TrimToSize(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000); + // The resulting new best tip may not be in setBlockIndexCandidates anymore, so // add it again. BlockMap::iterator it = mapBlockIndex.begin(); @@ -4290,10 +4308,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv, RelayTransaction(tx); vWorkQueue.push_back(inv.hash); - LogPrint("mempool", "AcceptToMemoryPool: peer=%d: accepted %s (poolsz %u)\n", + LogPrint("mempool", "AcceptToMemoryPool: peer=%d: accepted %s (poolsz %u txn, %u kB)\n", pfrom->id, tx.GetHash().ToString(), - mempool.size()); + mempool.size(), mempool.DynamicMemoryUsage() / 1000); // Recursively process any orphan transactions that depended on this one set<NodeId> setMisbehaving; @@ -4955,7 +4973,16 @@ bool SendMessages(CNode* pto, bool fSendTrickle) if ((nSyncStarted == 0 && fFetch) || pindexBestHeader->GetBlockTime() > GetAdjustedTime() - 24 * 60 * 60) { state.fSyncStarted = true; nSyncStarted++; - CBlockIndex *pindexStart = pindexBestHeader->pprev ? pindexBestHeader->pprev : pindexBestHeader; + const CBlockIndex *pindexStart = pindexBestHeader; + /* If possible, start at the block preceding the currently + best known header. This ensures that we always get a + non-empty list of headers back as long as the peer + is up-to-date. With a non-empty response, we can initialise + the peer's known best block. This wouldn't be possible + if we requested starting at pindexBestHeader and + got back an empty response. */ + if (pindexStart->pprev) + pindexStart = pindexStart->pprev; LogPrint("net", "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight); pto->PushMessage("getheaders", chainActive.GetLocator(pindexStart), uint256()); } |