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authorJeff Garzik <jgarzik@exmulti.com>2012-08-21 02:21:33 -0400
committerJeff Garzik <jgarzik@redhat.com>2012-08-21 02:21:33 -0400
commit7600e7fc399b46bf126e22fa8681d812c844124e (patch)
tree0c9394f62df092465ec83f598ecec0e189daecd6 /src/rpcmining.cpp
parentddd1ffb4f1b433c64b4cc91b9fdd6b0958d2d14e (diff)
RPC, cosmetic: Create rpcmining.cpp as new home for mining-related RPC code
Diffstat (limited to 'src/rpcmining.cpp')
-rw-r--r--src/rpcmining.cpp380
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;
+}
+