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Diffstat (limited to 'src/rpcmining.cpp')
| -rw-r--r-- | src/rpcmining.cpp | 380 |
1 files changed, 380 insertions, 0 deletions
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp new file mode 100644 index 0000000000..5d983d21d4 --- /dev/null +++ b/src/rpcmining.cpp @@ -0,0 +1,380 @@ +// Copyright (c) 2010 Satoshi Nakamoto +// Copyright (c) 2009-2012 The Bitcoin developers +// Distributed under the MIT/X11 software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include "main.h" +#include "db.h" +#include "init.h" +#include "bitcoinrpc.h" + +using namespace json_spirit; +using namespace std; + +extern double GetDifficulty(const CBlockIndex* blockindex = NULL); +extern std::string HexBits(unsigned int nBits); + +Value getgenerate(const Array& params, bool fHelp) +{ + if (fHelp || params.size() != 0) + throw runtime_error( + "getgenerate\n" + "Returns true or false."); + + return GetBoolArg("-gen"); +} + + +Value setgenerate(const Array& params, bool fHelp) +{ + if (fHelp || params.size() < 1 || params.size() > 2) + throw runtime_error( + "setgenerate <generate> [genproclimit]\n" + "<generate> is true or false to turn generation on or off.\n" + "Generation is limited to [genproclimit] processors, -1 is unlimited."); + + bool fGenerate = true; + if (params.size() > 0) + fGenerate = params[0].get_bool(); + + if (params.size() > 1) + { + int nGenProcLimit = params[1].get_int(); + mapArgs["-genproclimit"] = itostr(nGenProcLimit); + if (nGenProcLimit == 0) + fGenerate = false; + } + mapArgs["-gen"] = (fGenerate ? "1" : "0"); + + GenerateBitcoins(fGenerate, pwalletMain); + return Value::null; +} + + +Value gethashespersec(const Array& params, bool fHelp) +{ + if (fHelp || params.size() != 0) + throw runtime_error( + "gethashespersec\n" + "Returns a recent hashes per second performance measurement while generating."); + + if (GetTimeMillis() - nHPSTimerStart > 8000) + return (boost::int64_t)0; + return (boost::int64_t)dHashesPerSec; +} + + +Value getmininginfo(const Array& params, bool fHelp) +{ + if (fHelp || params.size() != 0) + throw runtime_error( + "getmininginfo\n" + "Returns an object containing mining-related information."); + + Object obj; + obj.push_back(Pair("blocks", (int)nBestHeight)); + obj.push_back(Pair("currentblocksize",(uint64_t)nLastBlockSize)); + obj.push_back(Pair("currentblocktx",(uint64_t)nLastBlockTx)); + obj.push_back(Pair("difficulty", (double)GetDifficulty())); + obj.push_back(Pair("errors", GetWarnings("statusbar"))); + obj.push_back(Pair("generate", GetBoolArg("-gen"))); + obj.push_back(Pair("genproclimit", (int)GetArg("-genproclimit", -1))); + obj.push_back(Pair("hashespersec", gethashespersec(params, false))); + obj.push_back(Pair("pooledtx", (uint64_t)mempool.size())); + obj.push_back(Pair("testnet", fTestNet)); + return obj; +} + + +Value getwork(const Array& params, bool fHelp) +{ + if (fHelp || params.size() > 1) + throw runtime_error( + "getwork [data]\n" + "If [data] is not specified, returns formatted hash data to work on:\n" + " \"midstate\" : precomputed hash state after hashing the first half of the data (DEPRECATED)\n" // deprecated + " \"data\" : block data\n" + " \"hash1\" : formatted hash buffer for second hash (DEPRECATED)\n" // deprecated + " \"target\" : little endian hash target\n" + "If [data] is specified, tries to solve the block and returns true if it was successful."); + + if (vNodes.empty()) + throw JSONRPCError(-9, "Bitcoin is not connected!"); + + if (IsInitialBlockDownload()) + throw JSONRPCError(-10, "Bitcoin is downloading blocks..."); + + typedef map<uint256, pair<CBlock*, CScript> > mapNewBlock_t; + static mapNewBlock_t mapNewBlock; // FIXME: thread safety + static vector<CBlock*> vNewBlock; + static CReserveKey reservekey(pwalletMain); + + if (params.size() == 0) + { + // Update block + static unsigned int nTransactionsUpdatedLast; + static CBlockIndex* pindexPrev; + static int64 nStart; + static CBlock* pblock; + if (pindexPrev != pindexBest || + (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)) + { + if (pindexPrev != pindexBest) + { + // Deallocate old blocks since they're obsolete now + mapNewBlock.clear(); + BOOST_FOREACH(CBlock* pblock, vNewBlock) + delete pblock; + vNewBlock.clear(); + } + + // Clear pindexPrev so future getworks make a new block, despite any failures from here on + pindexPrev = NULL; + + // Store the pindexBest used before CreateNewBlock, to avoid races + nTransactionsUpdatedLast = nTransactionsUpdated; + CBlockIndex* pindexPrevNew = pindexBest; + nStart = GetTime(); + + // Create new block + pblock = CreateNewBlock(reservekey); + if (!pblock) + throw JSONRPCError(-7, "Out of memory"); + vNewBlock.push_back(pblock); + + // Need to update only after we know CreateNewBlock succeeded + pindexPrev = pindexPrevNew; + } + + // Update nTime + pblock->UpdateTime(pindexPrev); + pblock->nNonce = 0; + + // Update nExtraNonce + static unsigned int nExtraNonce = 0; + IncrementExtraNonce(pblock, pindexPrev, nExtraNonce); + + // Save + mapNewBlock[pblock->hashMerkleRoot] = make_pair(pblock, pblock->vtx[0].vin[0].scriptSig); + + // Pre-build hash buffers + char pmidstate[32]; + char pdata[128]; + char phash1[64]; + FormatHashBuffers(pblock, pmidstate, pdata, phash1); + + uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256(); + + Object result; + result.push_back(Pair("midstate", HexStr(BEGIN(pmidstate), END(pmidstate)))); // deprecated + result.push_back(Pair("data", HexStr(BEGIN(pdata), END(pdata)))); + result.push_back(Pair("hash1", HexStr(BEGIN(phash1), END(phash1)))); // deprecated + result.push_back(Pair("target", HexStr(BEGIN(hashTarget), END(hashTarget)))); + return result; + } + else + { + // Parse parameters + vector<unsigned char> vchData = ParseHex(params[0].get_str()); + if (vchData.size() != 128) + throw JSONRPCError(-8, "Invalid parameter"); + CBlock* pdata = (CBlock*)&vchData[0]; + + // Byte reverse + for (int i = 0; i < 128/4; i++) + ((unsigned int*)pdata)[i] = ByteReverse(((unsigned int*)pdata)[i]); + + // Get saved block + if (!mapNewBlock.count(pdata->hashMerkleRoot)) + return false; + CBlock* pblock = mapNewBlock[pdata->hashMerkleRoot].first; + + pblock->nTime = pdata->nTime; + pblock->nNonce = pdata->nNonce; + pblock->vtx[0].vin[0].scriptSig = mapNewBlock[pdata->hashMerkleRoot].second; + pblock->hashMerkleRoot = pblock->BuildMerkleTree(); + + return CheckWork(pblock, *pwalletMain, reservekey); + } +} + + +Value getblocktemplate(const Array& params, bool fHelp) +{ + if (fHelp || params.size() > 1) + throw runtime_error( + "getblocktemplate [params]\n" + "Returns data needed to construct a block to work on:\n" + " \"version\" : block version\n" + " \"previousblockhash\" : hash of current highest block\n" + " \"transactions\" : contents of non-coinbase transactions that should be included in the next block\n" + " \"coinbaseaux\" : data that should be included in coinbase\n" + " \"coinbasevalue\" : maximum allowable input to coinbase transaction, including the generation award and transaction fees\n" + " \"target\" : hash target\n" + " \"mintime\" : minimum timestamp appropriate for next block\n" + " \"curtime\" : current timestamp\n" + " \"mutable\" : list of ways the block template may be changed\n" + " \"noncerange\" : range of valid nonces\n" + " \"sigoplimit\" : limit of sigops in blocks\n" + " \"sizelimit\" : limit of block size\n" + " \"bits\" : compressed target of next block\n" + " \"height\" : height of the next block\n" + "See https://en.bitcoin.it/wiki/BIP_0022 for full specification."); + + std::string strMode = "template"; + if (params.size() > 0) + { + const Object& oparam = params[0].get_obj(); + const Value& modeval = find_value(oparam, "mode"); + if (modeval.type() == str_type) + strMode = modeval.get_str(); + else + throw JSONRPCError(-8, "Invalid mode"); + } + + if (strMode != "template") + throw JSONRPCError(-8, "Invalid mode"); + + if (vNodes.empty()) + throw JSONRPCError(-9, "Bitcoin is not connected!"); + + if (IsInitialBlockDownload()) + throw JSONRPCError(-10, "Bitcoin is downloading blocks..."); + + static CReserveKey reservekey(pwalletMain); + + // Update block + static unsigned int nTransactionsUpdatedLast; + static CBlockIndex* pindexPrev; + static int64 nStart; + static CBlock* pblock; + if (pindexPrev != pindexBest || + (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 5)) + { + // Clear pindexPrev so future calls make a new block, despite any failures from here on + pindexPrev = NULL; + + // Store the pindexBest used before CreateNewBlock, to avoid races + nTransactionsUpdatedLast = nTransactionsUpdated; + CBlockIndex* pindexPrevNew = pindexBest; + nStart = GetTime(); + + // Create new block + if(pblock) + { + delete pblock; + pblock = NULL; + } + pblock = CreateNewBlock(reservekey); + if (!pblock) + throw JSONRPCError(-7, "Out of memory"); + + // Need to update only after we know CreateNewBlock succeeded + pindexPrev = pindexPrevNew; + } + + // Update nTime + pblock->UpdateTime(pindexPrev); + pblock->nNonce = 0; + + Array transactions; + map<uint256, int64_t> setTxIndex; + int i = 0; + CTxDB txdb("r"); + BOOST_FOREACH (CTransaction& tx, pblock->vtx) + { + uint256 txHash = tx.GetHash(); + setTxIndex[txHash] = i++; + + if (tx.IsCoinBase()) + continue; + + Object entry; + + CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION); + ssTx << tx; + entry.push_back(Pair("data", HexStr(ssTx.begin(), ssTx.end()))); + + entry.push_back(Pair("hash", txHash.GetHex())); + + MapPrevTx mapInputs; + map<uint256, CTxIndex> mapUnused; + bool fInvalid = false; + if (tx.FetchInputs(txdb, mapUnused, false, false, mapInputs, fInvalid)) + { + entry.push_back(Pair("fee", (int64_t)(tx.GetValueIn(mapInputs) - tx.GetValueOut()))); + + Array deps; + BOOST_FOREACH (MapPrevTx::value_type& inp, mapInputs) + { + if (setTxIndex.count(inp.first)) + deps.push_back(setTxIndex[inp.first]); + } + entry.push_back(Pair("depends", deps)); + + int64_t nSigOps = tx.GetLegacySigOpCount(); + nSigOps += tx.GetP2SHSigOpCount(mapInputs); + entry.push_back(Pair("sigops", nSigOps)); + } + + transactions.push_back(entry); + } + + Object aux; + aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end()))); + + uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256(); + + static Array aMutable; + if (aMutable.empty()) + { + aMutable.push_back("time"); + aMutable.push_back("transactions"); + aMutable.push_back("prevblock"); + } + + Object result; + result.push_back(Pair("version", pblock->nVersion)); + result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex())); + result.push_back(Pair("transactions", transactions)); + result.push_back(Pair("coinbaseaux", aux)); + result.push_back(Pair("coinbasevalue", (int64_t)pblock->vtx[0].vout[0].nValue)); + result.push_back(Pair("target", hashTarget.GetHex())); + result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1)); + result.push_back(Pair("mutable", aMutable)); + result.push_back(Pair("noncerange", "00000000ffffffff")); + result.push_back(Pair("sigoplimit", (int64_t)MAX_BLOCK_SIGOPS)); + result.push_back(Pair("sizelimit", (int64_t)MAX_BLOCK_SIZE)); + result.push_back(Pair("curtime", (int64_t)pblock->nTime)); + result.push_back(Pair("bits", HexBits(pblock->nBits))); + result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1))); + + return result; +} + +Value submitblock(const Array& params, bool fHelp) +{ + if (fHelp || params.size() < 1 || params.size() > 2) + throw runtime_error( + "submitblock <hex data> [optional-params-obj]\n" + "[optional-params-obj] parameter is currently ignored.\n" + "Attempts to submit new block to network.\n" + "See https://en.bitcoin.it/wiki/BIP_0022 for full specification."); + + vector<unsigned char> blockData(ParseHex(params[0].get_str())); + CDataStream ssBlock(blockData, SER_NETWORK, PROTOCOL_VERSION); + CBlock block; + try { + ssBlock >> block; + } + catch (std::exception &e) { + throw JSONRPCError(-22, "Block decode failed"); + } + + bool fAccepted = ProcessBlock(NULL, &block); + if (!fAccepted) + throw JSONRPCError(-23, "Block rejected"); + + return true; +} + |