diff options
Diffstat (limited to 'src/miner.cpp')
| -rw-r--r-- | src/miner.cpp | 116 |
1 files changed, 63 insertions, 53 deletions
diff --git a/src/miner.cpp b/src/miner.cpp index 56a2c5828b..42c8bb970b 100644 --- a/src/miner.cpp +++ b/src/miner.cpp @@ -6,19 +6,23 @@ #include "miner.h" #include "amount.h" +#include "chain.h" #include "chainparams.h" +#include "coins.h" #include "consensus/consensus.h" +#include "consensus/validation.h" #include "hash.h" #include "main.h" #include "net.h" +#include "policy/policy.h" #include "pow.h" #include "primitives/transaction.h" +#include "script/standard.h" #include "timedata.h" +#include "txmempool.h" #include "util.h" #include "utilmoneystr.h" -#ifdef ENABLE_WALLET -#include "wallet/wallet.h" -#endif +#include "validationinterface.h" #include <boost/thread.hpp> #include <boost/tuple/tuple.hpp> @@ -80,17 +84,24 @@ public: } }; -void UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev) +int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev) { - pblock->nTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); + int64_t nOldTime = pblock->nTime; + int64_t nNewTime = std::max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime()); + + if (nOldTime < nNewTime) + pblock->nTime = nNewTime; // Updating time can change work required on testnet: if (consensusParams.fPowAllowMinDifficultyBlocks) pblock->nBits = GetNextWorkRequired(pindexPrev, pblock, consensusParams); + + return nNewTime - nOldTime; } CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) { + const CChainParams& chainparams = Params(); // Create new block auto_ptr<CBlockTemplate> pblocktemplate(new CBlockTemplate()); if(!pblocktemplate.get()) @@ -136,6 +147,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) LOCK2(cs_main, mempool.cs); CBlockIndex* pindexPrev = chainActive.Tip(); const int nHeight = pindexPrev->nHeight + 1; + pblock->nTime = GetAdjustedTime(); CCoinsViewCache view(pcoinsTip); // Priority order to process transactions @@ -146,11 +158,11 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) // This vector will be sorted into a priority queue: vector<TxPriority> vecPriority; vecPriority.reserve(mempool.mapTx.size()); - for (map<uint256, CTxMemPoolEntry>::iterator mi = mempool.mapTx.begin(); + for (CTxMemPool::indexed_transaction_set::iterator mi = mempool.mapTx.begin(); mi != mempool.mapTx.end(); ++mi) { - const CTransaction& tx = mi->second.GetTx(); - if (tx.IsCoinBase() || !IsFinalTx(tx, nHeight)) + const CTransaction& tx = mi->GetTx(); + if (tx.IsCoinBase() || !IsFinalTx(tx, nHeight, pblock->nTime)) continue; COrphan* porphan = NULL; @@ -184,7 +196,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) } mapDependers[txin.prevout.hash].push_back(porphan); porphan->setDependsOn.insert(txin.prevout.hash); - nTotalIn += mempool.mapTx[txin.prevout.hash].GetTx().vout[txin.prevout.n].nValue; + nTotalIn += mempool.mapTx.find(txin.prevout.hash)->GetTx().vout[txin.prevout.n].nValue; continue; } const CCoins* coins = view.AccessCoins(txin.prevout.hash); @@ -214,7 +226,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) porphan->feeRate = feeRate; } else - vecPriority.push_back(TxPriority(dPriority, feeRate, &mi->second.GetTx())); + vecPriority.push_back(TxPriority(dPriority, feeRate, &(mi->GetTx()))); } // Collect transactions into block @@ -320,7 +332,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) LogPrintf("CreateNewBlock(): total size %u\n", nBlockSize); // Compute final coinbase transaction. - txNew.vout[0].nValue = GetBlockValue(nHeight, nFees); + txNew.vout[0].nValue = nFees + GetBlockSubsidy(nHeight, chainparams.GetConsensus()); txNew.vin[0].scriptSig = CScript() << nHeight << OP_0; pblock->vtx[0] = txNew; pblocktemplate->vTxFees[0] = -nFees; @@ -340,7 +352,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn) return pblocktemplate.release(); } -void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce) +void IncrementExtraNonce(CBlock* pblock, const CBlockIndex* pindexPrev, unsigned int& nExtraNonce) { // Update nExtraNonce static uint256 hashPrevBlock; @@ -356,10 +368,9 @@ void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& assert(txCoinbase.vin[0].scriptSig.size() <= 100); pblock->vtx[0] = txCoinbase; - pblock->hashMerkleRoot = pblock->BuildMerkleTree(); + pblock->hashMerkleRoot = pblock->ComputeMerkleRoot(); } -#ifdef ENABLE_WALLET ////////////////////////////////////////////////////////////////////////////// // // Internal miner @@ -398,17 +409,7 @@ bool static ScanHash(const CBlockHeader *pblock, uint32_t& nNonce, uint256 *phas } } -CBlockTemplate* CreateNewBlockWithKey(CReserveKey& reservekey) -{ - CPubKey pubkey; - if (!reservekey.GetReservedKey(pubkey)) - return NULL; - - CScript scriptPubKey = CScript() << ToByteVector(pubkey) << OP_CHECKSIG; - return CreateNewBlock(scriptPubKey); -} - -static bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey) +static bool ProcessBlockFound(const CBlock* pblock, const CChainParams& chainparams) { LogPrintf("%s\n", pblock->ToString()); LogPrintf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue)); @@ -420,41 +421,49 @@ static bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& rese return error("BitcoinMiner: generated block is stale"); } - // Remove key from key pool - reservekey.KeepKey(); - - // Track how many getdata requests this block gets - { - LOCK(wallet.cs_wallet); - wallet.mapRequestCount[pblock->GetHash()] = 0; - } + // Inform about the new block + GetMainSignals().BlockFound(pblock->GetHash()); // Process this block the same as if we had received it from another node CValidationState state; - if (!ProcessNewBlock(state, NULL, pblock)) + if (!ProcessNewBlock(state, NULL, pblock, true, NULL)) return error("BitcoinMiner: ProcessNewBlock, block not accepted"); return true; } -void static BitcoinMiner(CWallet *pwallet) +void static BitcoinMiner(const CChainParams& chainparams) { LogPrintf("BitcoinMiner started\n"); SetThreadPriority(THREAD_PRIORITY_LOWEST); RenameThread("bitcoin-miner"); - const CChainParams& chainparams = Params(); - // Each thread has its own key and counter - CReserveKey reservekey(pwallet); unsigned int nExtraNonce = 0; + boost::shared_ptr<CReserveScript> coinbaseScript; + GetMainSignals().ScriptForMining(coinbaseScript); + try { + // Throw an error if no script was provided. This can happen + // due to some internal error but also if the keypool is empty. + // In the latter case, already the pointer is NULL. + if (!coinbaseScript || coinbaseScript->reserveScript.empty()) + throw std::runtime_error("No coinbase script available (mining requires a wallet)"); + while (true) { if (chainparams.MiningRequiresPeers()) { // Busy-wait for the network to come online so we don't waste time mining // on an obsolete chain. In regtest mode we expect to fly solo. - while (vNodes.empty()) + do { + bool fvNodesEmpty; + { + LOCK(cs_vNodes); + fvNodesEmpty = vNodes.empty(); + } + if (!fvNodesEmpty && !IsInitialBlockDownload()) + break; MilliSleep(1000); + } while (true); } // @@ -463,7 +472,7 @@ void static BitcoinMiner(CWallet *pwallet) unsigned int nTransactionsUpdatedLast = mempool.GetTransactionsUpdated(); CBlockIndex* pindexPrev = chainActive.Tip(); - auto_ptr<CBlockTemplate> pblocktemplate(CreateNewBlockWithKey(reservekey)); + auto_ptr<CBlockTemplate> pblocktemplate(CreateNewBlock(coinbaseScript->reserveScript)); if (!pblocktemplate.get()) { LogPrintf("Error in BitcoinMiner: Keypool ran out, please call keypoolrefill before restarting the mining thread\n"); @@ -495,8 +504,9 @@ void static BitcoinMiner(CWallet *pwallet) SetThreadPriority(THREAD_PRIORITY_NORMAL); LogPrintf("BitcoinMiner:\n"); LogPrintf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex(), hashTarget.GetHex()); - ProcessBlockFound(pblock, *pwallet, reservekey); + ProcessBlockFound(pblock, chainparams); SetThreadPriority(THREAD_PRIORITY_LOWEST); + coinbaseScript->KeepScript(); // In regression test mode, stop mining after a block is found. if (chainparams.MineBlocksOnDemand()) @@ -519,7 +529,9 @@ void static BitcoinMiner(CWallet *pwallet) break; // Update nTime every few seconds - UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev); + if (UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev) < 0) + break; // Recreate the block if the clock has run backwards, + // so that we can use the correct time. if (chainparams.GetConsensus().fPowAllowMinDifficultyBlocks) { // Changing pblock->nTime can change work required on testnet: @@ -533,19 +545,19 @@ void static BitcoinMiner(CWallet *pwallet) LogPrintf("BitcoinMiner terminated\n"); throw; } + catch (const std::runtime_error &e) + { + LogPrintf("BitcoinMiner runtime error: %s\n", e.what()); + return; + } } -void GenerateBitcoins(bool fGenerate, CWallet* pwallet, int nThreads) +void GenerateBitcoins(bool fGenerate, int nThreads, const CChainParams& chainparams) { static boost::thread_group* minerThreads = NULL; - if (nThreads < 0) { - // In regtest threads defaults to 1 - if (Params().DefaultMinerThreads()) - nThreads = Params().DefaultMinerThreads(); - else - nThreads = boost::thread::hardware_concurrency(); - } + if (nThreads < 0) + nThreads = GetNumCores(); if (minerThreads != NULL) { @@ -559,7 +571,5 @@ void GenerateBitcoins(bool fGenerate, CWallet* pwallet, int nThreads) minerThreads = new boost::thread_group(); for (int i = 0; i < nThreads; i++) - minerThreads->create_thread(boost::bind(&BitcoinMiner, pwallet)); + minerThreads->create_thread(boost::bind(&BitcoinMiner, boost::cref(chainparams))); } - -#endif // ENABLE_WALLET |