-// Copyright (c) 2009-2010 Satoshi Nakamoto\r
-// Distributed under the MIT/X11 software license, see the accompanying\r
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.\r
-\r
-#include "headers.h"\r
-#include "cryptopp/sha.h"\r
-\r
-\r
-\r
-\r
-\r
-//\r
-// Global state\r
-//\r
-\r
-CCriticalSection cs_main;\r
-\r
-map<uint256, CTransaction> mapTransactions;\r
-CCriticalSection cs_mapTransactions;\r
-unsigned int nTransactionsUpdated = 0;\r
-map<COutPoint, CInPoint> mapNextTx;\r
-\r
-map<uint256, CBlockIndex*> mapBlockIndex;\r
-const uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");\r
-CBlockIndex* pindexGenesisBlock = NULL;\r
-int nBestHeight = -1;\r
-CBigNum bnBestChainWork = 0;\r
-CBigNum bnBestInvalidWork = 0;\r
-uint256 hashBestChain = 0;\r
-CBlockIndex* pindexBest = NULL;\r
-int64 nTimeBestReceived = 0;\r
-\r
-map<uint256, CBlock*> mapOrphanBlocks;\r
-multimap<uint256, CBlock*> mapOrphanBlocksByPrev;\r
-\r
-map<uint256, CDataStream*> mapOrphanTransactions;\r
-multimap<uint256, CDataStream*> mapOrphanTransactionsByPrev;\r
-\r
-map<uint256, CWalletTx> mapWallet;\r
-vector<uint256> vWalletUpdated;\r
-CCriticalSection cs_mapWallet;\r
-\r
-map<vector<unsigned char>, CPrivKey> mapKeys;\r
-map<uint160, vector<unsigned char> > mapPubKeys;\r
-CCriticalSection cs_mapKeys;\r
-CKey keyUser;\r
-\r
-map<uint256, int> mapRequestCount;\r
-CCriticalSection cs_mapRequestCount;\r
-\r
-map<string, string> mapAddressBook;\r
-CCriticalSection cs_mapAddressBook;\r
-\r
-vector<unsigned char> vchDefaultKey;\r
-\r
-double dHashesPerSec;\r
-int64 nHPSTimerStart;\r
-\r
-// Settings\r
-int fGenerateBitcoins = false;\r
-int64 nTransactionFee = 0;\r
-CAddress addrIncoming;\r
-int fLimitProcessors = false;\r
-int nLimitProcessors = 1;\r
-int fMinimizeToTray = true;\r
-int fMinimizeOnClose = true;\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// mapKeys\r
-//\r
-\r
-bool AddKey(const CKey& key)\r
-{\r
- CRITICAL_BLOCK(cs_mapKeys)\r
- {\r
- mapKeys[key.GetPubKey()] = key.GetPrivKey();\r
- mapPubKeys[Hash160(key.GetPubKey())] = key.GetPubKey();\r
- }\r
- return CWalletDB().WriteKey(key.GetPubKey(), key.GetPrivKey());\r
-}\r
-\r
-vector<unsigned char> GenerateNewKey()\r
-{\r
- RandAddSeedPerfmon();\r
- CKey key;\r
- key.MakeNewKey();\r
- if (!AddKey(key))\r
- throw runtime_error("GenerateNewKey() : AddKey failed\n");\r
- return key.GetPubKey();\r
-}\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// mapWallet\r
-//\r
-\r
-bool AddToWallet(const CWalletTx& wtxIn)\r
-{\r
- uint256 hash = wtxIn.GetHash();\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- // Inserts only if not already there, returns tx inserted or tx found\r
- pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));\r
- CWalletTx& wtx = (*ret.first).second;\r
- bool fInsertedNew = ret.second;\r
- if (fInsertedNew)\r
- wtx.nTimeReceived = GetAdjustedTime();\r
-\r
- bool fUpdated = false;\r
- if (!fInsertedNew)\r
- {\r
- // Merge\r
- if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)\r
- {\r
- wtx.hashBlock = wtxIn.hashBlock;\r
- fUpdated = true;\r
- }\r
- if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))\r
- {\r
- wtx.vMerkleBranch = wtxIn.vMerkleBranch;\r
- wtx.nIndex = wtxIn.nIndex;\r
- fUpdated = true;\r
- }\r
- if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)\r
- {\r
- wtx.fFromMe = wtxIn.fFromMe;\r
- fUpdated = true;\r
- }\r
- if (wtxIn.fSpent && wtxIn.fSpent != wtx.fSpent)\r
- {\r
- wtx.fSpent = wtxIn.fSpent;\r
- fUpdated = true;\r
- }\r
- }\r
-\r
- //// debug print\r
- printf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString().substr(0,6).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));\r
-\r
- // Write to disk\r
- if (fInsertedNew || fUpdated)\r
- if (!wtx.WriteToDisk())\r
- return false;\r
-\r
- // If default receiving address gets used, replace it with a new one\r
- CScript scriptDefaultKey;\r
- scriptDefaultKey.SetBitcoinAddress(vchDefaultKey);\r
- foreach(const CTxOut& txout, wtx.vout)\r
- {\r
- if (txout.scriptPubKey == scriptDefaultKey)\r
- {\r
- CWalletDB walletdb;\r
- walletdb.WriteDefaultKey(GenerateNewKey());\r
- walletdb.WriteName(PubKeyToAddress(vchDefaultKey), "");\r
- }\r
- }\r
-\r
- // Notify UI\r
- vWalletUpdated.push_back(hash);\r
- }\r
-\r
- // Refresh UI\r
- MainFrameRepaint();\r
- return true;\r
-}\r
-\r
-bool AddToWalletIfMine(const CTransaction& tx, const CBlock* pblock)\r
-{\r
- if (tx.IsMine() || mapWallet.count(tx.GetHash()))\r
- {\r
- CWalletTx wtx(tx);\r
- // Get merkle branch if transaction was found in a block\r
- if (pblock)\r
- wtx.SetMerkleBranch(pblock);\r
- return AddToWallet(wtx);\r
- }\r
- return true;\r
-}\r
-\r
-bool EraseFromWallet(uint256 hash)\r
-{\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- if (mapWallet.erase(hash))\r
- CWalletDB().EraseTx(hash);\r
- }\r
- return true;\r
-}\r
-\r
-void WalletUpdateSpent(const COutPoint& prevout)\r
-{\r
- // Anytime a signature is successfully verified, it's proof the outpoint is spent.\r
- // Update the wallet spent flag if it doesn't know due to wallet.dat being\r
- // restored from backup or the user making copies of wallet.dat.\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);\r
- if (mi != mapWallet.end())\r
- {\r
- CWalletTx& wtx = (*mi).second;\r
- if (!wtx.fSpent && wtx.vout[prevout.n].IsMine())\r
- {\r
- printf("WalletUpdateSpent found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());\r
- wtx.fSpent = true;\r
- wtx.WriteToDisk();\r
- vWalletUpdated.push_back(prevout.hash);\r
- }\r
- }\r
- }\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// mapOrphanTransactions\r
-//\r
-\r
-void AddOrphanTx(const CDataStream& vMsg)\r
-{\r
- CTransaction tx;\r
- CDataStream(vMsg) >> tx;\r
- uint256 hash = tx.GetHash();\r
- if (mapOrphanTransactions.count(hash))\r
- return;\r
- CDataStream* pvMsg = mapOrphanTransactions[hash] = new CDataStream(vMsg);\r
- foreach(const CTxIn& txin, tx.vin)\r
- mapOrphanTransactionsByPrev.insert(make_pair(txin.prevout.hash, pvMsg));\r
-}\r
-\r
-void EraseOrphanTx(uint256 hash)\r
-{\r
- if (!mapOrphanTransactions.count(hash))\r
- return;\r
- const CDataStream* pvMsg = mapOrphanTransactions[hash];\r
- CTransaction tx;\r
- CDataStream(*pvMsg) >> tx;\r
- foreach(const CTxIn& txin, tx.vin)\r
- {\r
- for (multimap<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev.lower_bound(txin.prevout.hash);\r
- mi != mapOrphanTransactionsByPrev.upper_bound(txin.prevout.hash);)\r
- {\r
- if ((*mi).second == pvMsg)\r
- mapOrphanTransactionsByPrev.erase(mi++);\r
- else\r
- mi++;\r
- }\r
- }\r
- delete pvMsg;\r
- mapOrphanTransactions.erase(hash);\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// CTransaction\r
-//\r
-\r
-bool CTxIn::IsMine() const\r
-{\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);\r
- if (mi != mapWallet.end())\r
- {\r
- const CWalletTx& prev = (*mi).second;\r
- if (prevout.n < prev.vout.size())\r
- if (prev.vout[prevout.n].IsMine())\r
- return true;\r
- }\r
- }\r
- return false;\r
-}\r
-\r
-int64 CTxIn::GetDebit() const\r
-{\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);\r
- if (mi != mapWallet.end())\r
- {\r
- const CWalletTx& prev = (*mi).second;\r
- if (prevout.n < prev.vout.size())\r
- if (prev.vout[prevout.n].IsMine())\r
- return prev.vout[prevout.n].nValue;\r
- }\r
- }\r
- return 0;\r
-}\r
-\r
-int64 CWalletTx::GetTxTime() const\r
-{\r
- if (!fTimeReceivedIsTxTime && hashBlock != 0)\r
- {\r
- // If we did not receive the transaction directly, we rely on the block's\r
- // time to figure out when it happened. We use the median over a range\r
- // of blocks to try to filter out inaccurate block times.\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);\r
- if (mi != mapBlockIndex.end())\r
- {\r
- CBlockIndex* pindex = (*mi).second;\r
- if (pindex)\r
- return pindex->GetMedianTime();\r
- }\r
- }\r
- return nTimeReceived;\r
-}\r
-\r
-int CWalletTx::GetRequestCount() const\r
-{\r
- // Returns -1 if it wasn't being tracked\r
- int nRequests = -1;\r
- CRITICAL_BLOCK(cs_mapRequestCount)\r
- {\r
- if (IsCoinBase())\r
- {\r
- // Generated block\r
- if (hashBlock != 0)\r
- {\r
- map<uint256, int>::iterator mi = mapRequestCount.find(hashBlock);\r
- if (mi != mapRequestCount.end())\r
- nRequests = (*mi).second;\r
- }\r
- }\r
- else\r
- {\r
- // Did anyone request this transaction?\r
- map<uint256, int>::iterator mi = mapRequestCount.find(GetHash());\r
- if (mi != mapRequestCount.end())\r
- {\r
- nRequests = (*mi).second;\r
-\r
- // How about the block it's in?\r
- if (nRequests == 0 && hashBlock != 0)\r
- {\r
- map<uint256, int>::iterator mi = mapRequestCount.find(hashBlock);\r
- if (mi != mapRequestCount.end())\r
- nRequests = (*mi).second;\r
- else\r
- nRequests = 1; // If it's in someone else's block it must have got out\r
- }\r
- }\r
- }\r
- }\r
- return nRequests;\r
-}\r
-\r
-\r
-\r
-\r
-int CMerkleTx::SetMerkleBranch(const CBlock* pblock)\r
-{\r
- if (fClient)\r
- {\r
- if (hashBlock == 0)\r
- return 0;\r
- }\r
- else\r
- {\r
- CBlock blockTmp;\r
- if (pblock == NULL)\r
- {\r
- // Load the block this tx is in\r
- CTxIndex txindex;\r
- if (!CTxDB("r").ReadTxIndex(GetHash(), txindex))\r
- return 0;\r
- if (!blockTmp.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos))\r
- return 0;\r
- pblock = &blockTmp;\r
- }\r
-\r
- // Update the tx's hashBlock\r
- hashBlock = pblock->GetHash();\r
-\r
- // Locate the transaction\r
- for (nIndex = 0; nIndex < pblock->vtx.size(); nIndex++)\r
- if (pblock->vtx[nIndex] == *(CTransaction*)this)\r
- break;\r
- if (nIndex == pblock->vtx.size())\r
- {\r
- vMerkleBranch.clear();\r
- nIndex = -1;\r
- printf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");\r
- return 0;\r
- }\r
-\r
- // Fill in merkle branch\r
- vMerkleBranch = pblock->GetMerkleBranch(nIndex);\r
- }\r
-\r
- // Is the tx in a block that's in the main chain\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);\r
- if (mi == mapBlockIndex.end())\r
- return 0;\r
- CBlockIndex* pindex = (*mi).second;\r
- if (!pindex || !pindex->IsInMainChain())\r
- return 0;\r
-\r
- return pindexBest->nHeight - pindex->nHeight + 1;\r
-}\r
-\r
-\r
-\r
-void CWalletTx::AddSupportingTransactions(CTxDB& txdb)\r
-{\r
- vtxPrev.clear();\r
-\r
- const int COPY_DEPTH = 3;\r
- if (SetMerkleBranch() < COPY_DEPTH)\r
- {\r
- vector<uint256> vWorkQueue;\r
- foreach(const CTxIn& txin, vin)\r
- vWorkQueue.push_back(txin.prevout.hash);\r
-\r
- // This critsect is OK because txdb is already open\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- map<uint256, const CMerkleTx*> mapWalletPrev;\r
- set<uint256> setAlreadyDone;\r
- for (int i = 0; i < vWorkQueue.size(); i++)\r
- {\r
- uint256 hash = vWorkQueue[i];\r
- if (setAlreadyDone.count(hash))\r
- continue;\r
- setAlreadyDone.insert(hash);\r
-\r
- CMerkleTx tx;\r
- if (mapWallet.count(hash))\r
- {\r
- tx = mapWallet[hash];\r
- foreach(const CMerkleTx& txWalletPrev, mapWallet[hash].vtxPrev)\r
- mapWalletPrev[txWalletPrev.GetHash()] = &txWalletPrev;\r
- }\r
- else if (mapWalletPrev.count(hash))\r
- {\r
- tx = *mapWalletPrev[hash];\r
- }\r
- else if (!fClient && txdb.ReadDiskTx(hash, tx))\r
- {\r
- ;\r
- }\r
- else\r
- {\r
- printf("ERROR: AddSupportingTransactions() : unsupported transaction\n");\r
- continue;\r
- }\r
-\r
- int nDepth = tx.SetMerkleBranch();\r
- vtxPrev.push_back(tx);\r
-\r
- if (nDepth < COPY_DEPTH)\r
- foreach(const CTxIn& txin, tx.vin)\r
- vWorkQueue.push_back(txin.prevout.hash);\r
- }\r
- }\r
- }\r
-\r
- reverse(vtxPrev.begin(), vtxPrev.end());\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-bool CTransaction::AcceptTransaction(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)\r
-{\r
- if (pfMissingInputs)\r
- *pfMissingInputs = false;\r
-\r
- // Coinbase is only valid in a block, not as a loose transaction\r
- if (IsCoinBase())\r
- return error("AcceptTransaction() : coinbase as individual tx");\r
-\r
- if (!CheckTransaction())\r
- return error("AcceptTransaction() : CheckTransaction failed");\r
-\r
- // To help v0.1.5 clients who would see it as a negative number\r
- if (nLockTime > INT_MAX)\r
- return error("AcceptTransaction() : not accepting nLockTime beyond 2038");\r
-\r
- // Do we already have it?\r
- uint256 hash = GetHash();\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- if (mapTransactions.count(hash))\r
- return false;\r
- if (fCheckInputs)\r
- if (txdb.ContainsTx(hash))\r
- return false;\r
-\r
- // Check for conflicts with in-memory transactions\r
- CTransaction* ptxOld = NULL;\r
- for (int i = 0; i < vin.size(); i++)\r
- {\r
- COutPoint outpoint = vin[i].prevout;\r
- if (mapNextTx.count(outpoint))\r
- {\r
- // Allow replacing with a newer version of the same transaction\r
- if (i != 0)\r
- return false;\r
- ptxOld = mapNextTx[outpoint].ptx;\r
- if (!IsNewerThan(*ptxOld))\r
- return false;\r
- for (int i = 0; i < vin.size(); i++)\r
- {\r
- COutPoint outpoint = vin[i].prevout;\r
- if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)\r
- return false;\r
- }\r
- break;\r
- }\r
- }\r
-\r
- // Check against previous transactions\r
- map<uint256, CTxIndex> mapUnused;\r
- int64 nFees = 0;\r
- if (fCheckInputs && !ConnectInputs(txdb, mapUnused, CDiskTxPos(1,1,1), pindexBest, nFees, false, false))\r
- {\r
- if (pfMissingInputs)\r
- *pfMissingInputs = true;\r
- return error("AcceptTransaction() : ConnectInputs failed %s", hash.ToString().substr(0,6).c_str());\r
- }\r
-\r
- // Store transaction in memory\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- if (ptxOld)\r
- {\r
- printf("mapTransaction.erase(%s) replacing with new version\n", ptxOld->GetHash().ToString().c_str());\r
- mapTransactions.erase(ptxOld->GetHash());\r
- }\r
- AddToMemoryPool();\r
- }\r
-\r
- ///// are we sure this is ok when loading transactions or restoring block txes\r
- // If updated, erase old tx from wallet\r
- if (ptxOld)\r
- EraseFromWallet(ptxOld->GetHash());\r
-\r
- printf("AcceptTransaction(): accepted %s\n", hash.ToString().substr(0,6).c_str());\r
- return true;\r
-}\r
-\r
-\r
-bool CTransaction::AddToMemoryPool()\r
-{\r
- // Add to memory pool without checking anything. Don't call this directly,\r
- // call AcceptTransaction to properly check the transaction first.\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- uint256 hash = GetHash();\r
- mapTransactions[hash] = *this;\r
- for (int i = 0; i < vin.size(); i++)\r
- mapNextTx[vin[i].prevout] = CInPoint(&mapTransactions[hash], i);\r
- nTransactionsUpdated++;\r
- }\r
- return true;\r
-}\r
-\r
-\r
-bool CTransaction::RemoveFromMemoryPool()\r
-{\r
- // Remove transaction from memory pool\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- foreach(const CTxIn& txin, vin)\r
- mapNextTx.erase(txin.prevout);\r
- mapTransactions.erase(GetHash());\r
- nTransactionsUpdated++;\r
- }\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-int CMerkleTx::GetDepthInMainChain(int& nHeightRet) const\r
-{\r
- if (hashBlock == 0 || nIndex == -1)\r
- return 0;\r
-\r
- // Find the block it claims to be in\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);\r
- if (mi == mapBlockIndex.end())\r
- return 0;\r
- CBlockIndex* pindex = (*mi).second;\r
- if (!pindex || !pindex->IsInMainChain())\r
- return 0;\r
-\r
- // Make sure the merkle branch connects to this block\r
- if (!fMerkleVerified)\r
- {\r
- if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot)\r
- return 0;\r
- fMerkleVerified = true;\r
- }\r
-\r
- nHeightRet = pindex->nHeight;\r
- return pindexBest->nHeight - pindex->nHeight + 1;\r
-}\r
-\r
-\r
-int CMerkleTx::GetBlocksToMaturity() const\r
-{\r
- if (!IsCoinBase())\r
- return 0;\r
- return max(0, (COINBASE_MATURITY+20) - GetDepthInMainChain());\r
-}\r
-\r
-\r
-bool CMerkleTx::AcceptTransaction(CTxDB& txdb, bool fCheckInputs)\r
-{\r
- if (fClient)\r
- {\r
- if (!IsInMainChain() && !ClientConnectInputs())\r
- return false;\r
- return CTransaction::AcceptTransaction(txdb, false);\r
- }\r
- else\r
- {\r
- return CTransaction::AcceptTransaction(txdb, fCheckInputs);\r
- }\r
-}\r
-\r
-\r
-\r
-bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)\r
-{\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- foreach(CMerkleTx& tx, vtxPrev)\r
- {\r
- if (!tx.IsCoinBase())\r
- {\r
- uint256 hash = tx.GetHash();\r
- if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))\r
- tx.AcceptTransaction(txdb, fCheckInputs);\r
- }\r
- }\r
- if (!IsCoinBase())\r
- return AcceptTransaction(txdb, fCheckInputs);\r
- }\r
- return true;\r
-}\r
-\r
-void ReacceptWalletTransactions()\r
-{\r
- CTxDB txdb("r");\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- foreach(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)\r
- {\r
- CWalletTx& wtx = item.second;\r
- if (wtx.fSpent && wtx.IsCoinBase())\r
- continue;\r
-\r
- CTxIndex txindex;\r
- if (txdb.ReadTxIndex(wtx.GetHash(), txindex))\r
- {\r
- // Update fSpent if a tx got spent somewhere else by a copy of wallet.dat\r
- if (!wtx.fSpent)\r
- {\r
- if (txindex.vSpent.size() != wtx.vout.size())\r
- {\r
- printf("ERROR: ReacceptWalletTransactions() : txindex.vSpent.size() %d != wtx.vout.size() %d\n", txindex.vSpent.size(), wtx.vout.size());\r
- continue;\r
- }\r
- for (int i = 0; i < txindex.vSpent.size(); i++)\r
- {\r
- if (!txindex.vSpent[i].IsNull() && wtx.vout[i].IsMine())\r
- {\r
- printf("ReacceptWalletTransactions found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());\r
- wtx.fSpent = true;\r
- wtx.WriteToDisk();\r
- break;\r
- }\r
- }\r
- }\r
- }\r
- else\r
- {\r
- // Reaccept any txes of ours that aren't already in a block\r
- if (!wtx.IsCoinBase())\r
- wtx.AcceptWalletTransaction(txdb, false);\r
- }\r
- }\r
- }\r
-}\r
-\r
-\r
-void CWalletTx::RelayWalletTransaction(CTxDB& txdb)\r
-{\r
- foreach(const CMerkleTx& tx, vtxPrev)\r
- {\r
- if (!tx.IsCoinBase())\r
- {\r
- uint256 hash = tx.GetHash();\r
- if (!txdb.ContainsTx(hash))\r
- RelayMessage(CInv(MSG_TX, hash), (CTransaction)tx);\r
- }\r
- }\r
- if (!IsCoinBase())\r
- {\r
- uint256 hash = GetHash();\r
- if (!txdb.ContainsTx(hash))\r
- {\r
- printf("Relaying wtx %s\n", hash.ToString().substr(0,6).c_str());\r
- RelayMessage(CInv(MSG_TX, hash), (CTransaction)*this);\r
- }\r
- }\r
-}\r
-\r
-void ResendWalletTransactions()\r
-{\r
- // Do this infrequently and randomly to avoid giving away\r
- // that these are our transactions.\r
- static int64 nNextTime;\r
- if (GetTime() < nNextTime)\r
- return;\r
- bool fFirst = (nNextTime == 0);\r
- nNextTime = GetTime() + GetRand(30 * 60);\r
- if (fFirst)\r
- return;\r
-\r
- // Rebroadcast any of our txes that aren't in a block yet\r
- printf("ResendWalletTransactions()\n");\r
- CTxDB txdb("r");\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- // Sort them in chronological order\r
- multimap<unsigned int, CWalletTx*> mapSorted;\r
- foreach(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)\r
- {\r
- CWalletTx& wtx = item.second;\r
- // Don't rebroadcast until it's had plenty of time that\r
- // it should have gotten in already by now.\r
- if (nTimeBestReceived - (int64)wtx.nTimeReceived > 5 * 60)\r
- mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));\r
- }\r
- foreach(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)\r
- {\r
- CWalletTx& wtx = *item.second;\r
- wtx.RelayWalletTransaction(txdb);\r
- }\r
- }\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// CBlock and CBlockIndex\r
-//\r
-\r
-bool CBlock::ReadFromDisk(const CBlockIndex* pblockindex, bool fReadTransactions)\r
-{\r
- return ReadFromDisk(pblockindex->nFile, pblockindex->nBlockPos, fReadTransactions);\r
-}\r
-\r
-uint256 GetOrphanRoot(const CBlock* pblock)\r
-{\r
- // Work back to the first block in the orphan chain\r
- while (mapOrphanBlocks.count(pblock->hashPrevBlock))\r
- pblock = mapOrphanBlocks[pblock->hashPrevBlock];\r
- return pblock->GetHash();\r
-}\r
-\r
-int64 CBlock::GetBlockValue(int nHeight, int64 nFees) const\r
-{\r
- int64 nSubsidy = 50 * COIN;\r
-\r
- // Subsidy is cut in half every 4 years\r
- nSubsidy >>= (nHeight / 210000);\r
-\r
- return nSubsidy + nFees;\r
-}\r
-\r
-unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast)\r
-{\r
- const int64 nTargetTimespan = 14 * 24 * 60 * 60; // two weeks\r
- const int64 nTargetSpacing = 10 * 60;\r
- const int64 nInterval = nTargetTimespan / nTargetSpacing;\r
-\r
- // Genesis block\r
- if (pindexLast == NULL)\r
- return bnProofOfWorkLimit.GetCompact();\r
-\r
- // Only change once per interval\r
- if ((pindexLast->nHeight+1) % nInterval != 0)\r
- return pindexLast->nBits;\r
-\r
- // Go back by what we want to be 14 days worth of blocks\r
- const CBlockIndex* pindexFirst = pindexLast;\r
- for (int i = 0; pindexFirst && i < nInterval-1; i++)\r
- pindexFirst = pindexFirst->pprev;\r
- assert(pindexFirst);\r
-\r
- // Limit adjustment step\r
- int64 nActualTimespan = (int64)pindexLast->nTime - (int64)pindexFirst->nTime;\r
- printf(" nActualTimespan = %"PRI64d" before bounds\n", nActualTimespan);\r
- if (nActualTimespan < nTargetTimespan/4)\r
- nActualTimespan = nTargetTimespan/4;\r
- if (nActualTimespan > nTargetTimespan*4)\r
- nActualTimespan = nTargetTimespan*4;\r
-\r
- // Retarget\r
- CBigNum bnNew;\r
- bnNew.SetCompact(pindexLast->nBits);\r
- bnNew *= nActualTimespan;\r
- bnNew /= nTargetTimespan;\r
-\r
- if (bnNew > bnProofOfWorkLimit)\r
- bnNew = bnProofOfWorkLimit;\r
-\r
- /// debug print\r
- printf("GetNextWorkRequired RETARGET\n");\r
- printf("nTargetTimespan = %"PRI64d" nActualTimespan = %"PRI64d"\n", nTargetTimespan, nActualTimespan);\r
- printf("Before: %08x %s\n", pindexLast->nBits, CBigNum().SetCompact(pindexLast->nBits).getuint256().ToString().c_str());\r
- printf("After: %08x %s\n", bnNew.GetCompact(), bnNew.getuint256().ToString().c_str());\r
-\r
- return bnNew.GetCompact();\r
-}\r
-\r
-bool IsInitialBlockDownload()\r
-{\r
- if (pindexBest == NULL)\r
- return true;\r
- static int64 nLastUpdate;\r
- static CBlockIndex* pindexLastBest;\r
- if (pindexBest != pindexLastBest)\r
- {\r
- pindexLastBest = pindexBest;\r
- nLastUpdate = GetTime();\r
- }\r
- return (GetTime() - nLastUpdate < 10 &&\r
- pindexBest->nTime < GetTime() - 24 * 60 * 60);\r
-}\r
-\r
-bool IsLockdown()\r
-{\r
- if (!pindexBest)\r
- return false;\r
- return (bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6);\r
-}\r
-\r
-void Lockdown(CBlockIndex* pindexNew)\r
-{\r
- if (pindexNew->bnChainWork > bnBestInvalidWork)\r
- {\r
- bnBestInvalidWork = pindexNew->bnChainWork;\r
- CTxDB().WriteBestInvalidWork(bnBestInvalidWork);\r
- MainFrameRepaint();\r
- }\r
- printf("Lockdown: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().substr(0,22).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());\r
- printf("Lockdown: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,22).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());\r
- printf("Lockdown: IsLockdown()=%d\n", (IsLockdown() ? 1 : 0));\r
- if (IsLockdown())\r
- printf("Lockdown: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n");\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-bool CTransaction::DisconnectInputs(CTxDB& txdb)\r
-{\r
- // Relinquish previous transactions' spent pointers\r
- if (!IsCoinBase())\r
- {\r
- foreach(const CTxIn& txin, vin)\r
- {\r
- COutPoint prevout = txin.prevout;\r
-\r
- // Get prev txindex from disk\r
- CTxIndex txindex;\r
- if (!txdb.ReadTxIndex(prevout.hash, txindex))\r
- return error("DisconnectInputs() : ReadTxIndex failed");\r
-\r
- if (prevout.n >= txindex.vSpent.size())\r
- return error("DisconnectInputs() : prevout.n out of range");\r
-\r
- // Mark outpoint as not spent\r
- txindex.vSpent[prevout.n].SetNull();\r
-\r
- // Write back\r
- txdb.UpdateTxIndex(prevout.hash, txindex);\r
- }\r
- }\r
-\r
- // Remove transaction from index\r
- if (!txdb.EraseTxIndex(*this))\r
- return error("DisconnectInputs() : EraseTxPos failed");\r
-\r
- return true;\r
-}\r
-\r
-\r
-bool CTransaction::ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,\r
- CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee)\r
-{\r
- // Take over previous transactions' spent pointers\r
- if (!IsCoinBase())\r
- {\r
- int64 nValueIn = 0;\r
- for (int i = 0; i < vin.size(); i++)\r
- {\r
- COutPoint prevout = vin[i].prevout;\r
-\r
- // Read txindex\r
- CTxIndex txindex;\r
- bool fFound = true;\r
- if (fMiner && mapTestPool.count(prevout.hash))\r
- {\r
- // Get txindex from current proposed changes\r
- txindex = mapTestPool[prevout.hash];\r
- }\r
- else\r
- {\r
- // Read txindex from txdb\r
- fFound = txdb.ReadTxIndex(prevout.hash, txindex);\r
- }\r
- if (!fFound && (fBlock || fMiner))\r
- return fMiner ? false : error("ConnectInputs() : %s prev tx %s index entry not found", GetHash().ToString().substr(0,6).c_str(), prevout.hash.ToString().substr(0,6).c_str());\r
-\r
- // Read txPrev\r
- CTransaction txPrev;\r
- if (!fFound || txindex.pos == CDiskTxPos(1,1,1))\r
- {\r
- // Get prev tx from single transactions in memory\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- if (!mapTransactions.count(prevout.hash))\r
- return error("ConnectInputs() : %s mapTransactions prev not found %s", GetHash().ToString().substr(0,6).c_str(), prevout.hash.ToString().substr(0,6).c_str());\r
- txPrev = mapTransactions[prevout.hash];\r
- }\r
- if (!fFound)\r
- txindex.vSpent.resize(txPrev.vout.size());\r
- }\r
- else\r
- {\r
- // Get prev tx from disk\r
- if (!txPrev.ReadFromDisk(txindex.pos))\r
- return error("ConnectInputs() : %s ReadFromDisk prev tx %s failed", GetHash().ToString().substr(0,6).c_str(), prevout.hash.ToString().substr(0,6).c_str());\r
- }\r
-\r
- if (prevout.n >= txPrev.vout.size() || prevout.n >= txindex.vSpent.size())\r
- return error("ConnectInputs() : %s prevout.n out of range %d %d %d prev tx %s\n%s", GetHash().ToString().substr(0,6).c_str(), prevout.n, txPrev.vout.size(), txindex.vSpent.size(), prevout.hash.ToString().substr(0,6).c_str(), txPrev.ToString().c_str());\r
-\r
- // If prev is coinbase, check that it's matured\r
- if (txPrev.IsCoinBase())\r
- for (CBlockIndex* pindex = pindexBlock; pindex && pindexBlock->nHeight - pindex->nHeight < COINBASE_MATURITY; pindex = pindex->pprev)\r
- if (pindex->nBlockPos == txindex.pos.nBlockPos && pindex->nFile == txindex.pos.nFile)\r
- return error("ConnectInputs() : tried to spend coinbase at depth %d", pindexBlock->nHeight - pindex->nHeight);\r
-\r
- // Verify signature\r
- if (!VerifySignature(txPrev, *this, i))\r
- return error("ConnectInputs() : %s VerifySignature failed", GetHash().ToString().substr(0,6).c_str());\r
-\r
- // Check for conflicts\r
- if (!txindex.vSpent[prevout.n].IsNull())\r
- return fMiner ? false : error("ConnectInputs() : %s prev tx already used at %s", GetHash().ToString().substr(0,6).c_str(), txindex.vSpent[prevout.n].ToString().c_str());\r
-\r
- // Mark outpoints as spent\r
- txindex.vSpent[prevout.n] = posThisTx;\r
-\r
- // Write back\r
- if (fBlock)\r
- txdb.UpdateTxIndex(prevout.hash, txindex);\r
- else if (fMiner)\r
- mapTestPool[prevout.hash] = txindex;\r
-\r
- nValueIn += txPrev.vout[prevout.n].nValue;\r
-\r
- // Check for negative or overflow input values\r
- if (txPrev.vout[prevout.n].nValue < 0)\r
- return error("ConnectInputs() : txin.nValue negative");\r
- if (txPrev.vout[prevout.n].nValue > MAX_MONEY)\r
- return error("ConnectInputs() : txin.nValue too high");\r
- if (nValueIn > MAX_MONEY)\r
- return error("ConnectInputs() : txin total too high");\r
- }\r
-\r
- // Tally transaction fees\r
- int64 nTxFee = nValueIn - GetValueOut();\r
- if (nTxFee < 0)\r
- return error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().substr(0,6).c_str());\r
- if (nTxFee < nMinFee)\r
- return false;\r
- nFees += nTxFee;\r
- }\r
-\r
- if (fBlock)\r
- {\r
- // Add transaction to disk index\r
- if (!txdb.AddTxIndex(*this, posThisTx, pindexBlock->nHeight))\r
- return error("ConnectInputs() : AddTxPos failed");\r
- }\r
- else if (fMiner)\r
- {\r
- // Add transaction to test pool\r
- mapTestPool[GetHash()] = CTxIndex(CDiskTxPos(1,1,1), vout.size());\r
- }\r
-\r
- return true;\r
-}\r
-\r
-\r
-bool CTransaction::ClientConnectInputs()\r
-{\r
- if (IsCoinBase())\r
- return false;\r
-\r
- // Take over previous transactions' spent pointers\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- int64 nValueIn = 0;\r
- for (int i = 0; i < vin.size(); i++)\r
- {\r
- // Get prev tx from single transactions in memory\r
- COutPoint prevout = vin[i].prevout;\r
- if (!mapTransactions.count(prevout.hash))\r
- return false;\r
- CTransaction& txPrev = mapTransactions[prevout.hash];\r
-\r
- if (prevout.n >= txPrev.vout.size())\r
- return false;\r
-\r
- // Verify signature\r
- if (!VerifySignature(txPrev, *this, i))\r
- return error("ConnectInputs() : VerifySignature failed");\r
-\r
- ///// this is redundant with the mapNextTx stuff, not sure which I want to get rid of\r
- ///// this has to go away now that posNext is gone\r
- // // Check for conflicts\r
- // if (!txPrev.vout[prevout.n].posNext.IsNull())\r
- // return error("ConnectInputs() : prev tx already used");\r
- //\r
- // // Flag outpoints as used\r
- // txPrev.vout[prevout.n].posNext = posThisTx;\r
-\r
- nValueIn += txPrev.vout[prevout.n].nValue;\r
- }\r
- if (GetValueOut() > nValueIn)\r
- return false;\r
- }\r
-\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-bool CBlock::DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex)\r
-{\r
- // Disconnect in reverse order\r
- for (int i = vtx.size()-1; i >= 0; i--)\r
- if (!vtx[i].DisconnectInputs(txdb))\r
- return false;\r
-\r
- // Update block index on disk without changing it in memory.\r
- // The memory index structure will be changed after the db commits.\r
- if (pindex->pprev)\r
- {\r
- CDiskBlockIndex blockindexPrev(pindex->pprev);\r
- blockindexPrev.hashNext = 0;\r
- txdb.WriteBlockIndex(blockindexPrev);\r
- }\r
-\r
- return true;\r
-}\r
-\r
-bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex)\r
-{\r
- //// issue here: it doesn't know the version\r
- unsigned int nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK) - 1 + GetSizeOfCompactSize(vtx.size());\r
-\r
- map<uint256, CTxIndex> mapUnused;\r
- int64 nFees = 0;\r
- foreach(CTransaction& tx, vtx)\r
- {\r
- CDiskTxPos posThisTx(pindex->nFile, pindex->nBlockPos, nTxPos);\r
- nTxPos += ::GetSerializeSize(tx, SER_DISK);\r
-\r
- if (!tx.ConnectInputs(txdb, mapUnused, posThisTx, pindex, nFees, true, false))\r
- return false;\r
- }\r
-\r
- if (vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees))\r
- return false;\r
-\r
- // Update block index on disk without changing it in memory.\r
- // The memory index structure will be changed after the db commits.\r
- if (pindex->pprev)\r
- {\r
- CDiskBlockIndex blockindexPrev(pindex->pprev);\r
- blockindexPrev.hashNext = pindex->GetBlockHash();\r
- txdb.WriteBlockIndex(blockindexPrev);\r
- }\r
-\r
- // Watch for transactions paying to me\r
- foreach(CTransaction& tx, vtx)\r
- AddToWalletIfMine(tx, this);\r
-\r
- return true;\r
-}\r
-\r
-\r
-\r
-bool Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)\r
-{\r
- printf("REORGANIZE\n");\r
-\r
- // Find the fork\r
- CBlockIndex* pfork = pindexBest;\r
- CBlockIndex* plonger = pindexNew;\r
- while (pfork != plonger)\r
- {\r
- while (plonger->nHeight > pfork->nHeight)\r
- if (!(plonger = plonger->pprev))\r
- return error("Reorganize() : plonger->pprev is null");\r
- if (pfork == plonger)\r
- break;\r
- if (!(pfork = pfork->pprev))\r
- return error("Reorganize() : pfork->pprev is null");\r
- }\r
-\r
- // List of what to disconnect\r
- vector<CBlockIndex*> vDisconnect;\r
- for (CBlockIndex* pindex = pindexBest; pindex != pfork; pindex = pindex->pprev)\r
- vDisconnect.push_back(pindex);\r
-\r
- // List of what to connect\r
- vector<CBlockIndex*> vConnect;\r
- for (CBlockIndex* pindex = pindexNew; pindex != pfork; pindex = pindex->pprev)\r
- vConnect.push_back(pindex);\r
- reverse(vConnect.begin(), vConnect.end());\r
-\r
- // Disconnect shorter branch\r
- vector<CTransaction> vResurrect;\r
- foreach(CBlockIndex* pindex, vDisconnect)\r
- {\r
- CBlock block;\r
- if (!block.ReadFromDisk(pindex->nFile, pindex->nBlockPos))\r
- return error("Reorganize() : ReadFromDisk for disconnect failed");\r
- if (!block.DisconnectBlock(txdb, pindex))\r
- return error("Reorganize() : DisconnectBlock failed");\r
-\r
- // Queue memory transactions to resurrect\r
- foreach(const CTransaction& tx, block.vtx)\r
- if (!tx.IsCoinBase())\r
- vResurrect.push_back(tx);\r
- }\r
-\r
- // Connect longer branch\r
- vector<CTransaction> vDelete;\r
- for (int i = 0; i < vConnect.size(); i++)\r
- {\r
- CBlockIndex* pindex = vConnect[i];\r
- CBlock block;\r
- if (!block.ReadFromDisk(pindex->nFile, pindex->nBlockPos))\r
- return error("Reorganize() : ReadFromDisk for connect failed");\r
- if (!block.ConnectBlock(txdb, pindex))\r
- {\r
- // Invalid block\r
- txdb.TxnAbort();\r
- return error("Reorganize() : ConnectBlock failed");\r
- }\r
-\r
- // Queue memory transactions to delete\r
- foreach(const CTransaction& tx, block.vtx)\r
- vDelete.push_back(tx);\r
- }\r
- if (!txdb.WriteHashBestChain(pindexNew->GetBlockHash()))\r
- return error("Reorganize() : WriteHashBestChain failed");\r
-\r
- // Commit now because resurrecting could take some time\r
- txdb.TxnCommit();\r
-\r
- // Disconnect shorter branch\r
- foreach(CBlockIndex* pindex, vDisconnect)\r
- if (pindex->pprev)\r
- pindex->pprev->pnext = NULL;\r
-\r
- // Connect longer branch\r
- foreach(CBlockIndex* pindex, vConnect)\r
- if (pindex->pprev)\r
- pindex->pprev->pnext = pindex;\r
-\r
- // Resurrect memory transactions that were in the disconnected branch\r
- foreach(CTransaction& tx, vResurrect)\r
- tx.AcceptTransaction(txdb, false);\r
-\r
- // Delete redundant memory transactions that are in the connected branch\r
- foreach(CTransaction& tx, vDelete)\r
- tx.RemoveFromMemoryPool();\r
-\r
- return true;\r
-}\r
-\r
-\r
-bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)\r
-{\r
- // Check for duplicate\r
- uint256 hash = GetHash();\r
- if (mapBlockIndex.count(hash))\r
- return error("AddToBlockIndex() : %s already exists", hash.ToString().substr(0,16).c_str());\r
-\r
- // Construct new block index object\r
- CBlockIndex* pindexNew = new CBlockIndex(nFile, nBlockPos, *this);\r
- if (!pindexNew)\r
- return error("AddToBlockIndex() : new CBlockIndex failed");\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;\r
- pindexNew->phashBlock = &((*mi).first);\r
- map<uint256, CBlockIndex*>::iterator miPrev = mapBlockIndex.find(hashPrevBlock);\r
- if (miPrev != mapBlockIndex.end())\r
- {\r
- pindexNew->pprev = (*miPrev).second;\r
- pindexNew->nHeight = pindexNew->pprev->nHeight + 1;\r
- }\r
- pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();\r
-\r
- CTxDB txdb;\r
- txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));\r
-\r
- // New best\r
- if (pindexNew->bnChainWork > bnBestChainWork)\r
- {\r
- txdb.TxnBegin();\r
- if (pindexGenesisBlock == NULL && hash == hashGenesisBlock)\r
- {\r
- pindexGenesisBlock = pindexNew;\r
- txdb.WriteHashBestChain(hash);\r
- }\r
- else if (hashPrevBlock == hashBestChain)\r
- {\r
- // Adding to current best branch\r
- if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))\r
- {\r
- txdb.TxnAbort();\r
- Lockdown(pindexNew);\r
- return error("AddToBlockIndex() : ConnectBlock failed");\r
- }\r
- txdb.TxnCommit();\r
- pindexNew->pprev->pnext = pindexNew;\r
-\r
- // Delete redundant memory transactions\r
- foreach(CTransaction& tx, vtx)\r
- tx.RemoveFromMemoryPool();\r
- }\r
- else\r
- {\r
- // New best branch\r
- if (!Reorganize(txdb, pindexNew))\r
- {\r
- txdb.TxnAbort();\r
- Lockdown(pindexNew);\r
- return error("AddToBlockIndex() : Reorganize failed");\r
- }\r
- }\r
- txdb.TxnCommit();\r
-\r
- // New best block\r
- hashBestChain = hash;\r
- pindexBest = pindexNew;\r
- nBestHeight = pindexBest->nHeight;\r
- bnBestChainWork = pindexNew->bnChainWork;\r
- nTimeBestReceived = GetTime();\r
- nTransactionsUpdated++;\r
- printf("AddToBlockIndex: new best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,22).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());\r
- }\r
-\r
- txdb.Close();\r
-\r
- if (pindexNew == pindexBest)\r
- {\r
- // Notify UI to display prev block's coinbase if it was ours\r
- static uint256 hashPrevBestCoinBase;\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- vWalletUpdated.push_back(hashPrevBestCoinBase);\r
- hashPrevBestCoinBase = vtx[0].GetHash();\r
- }\r
-\r
- MainFrameRepaint();\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-bool CBlock::CheckBlock() const\r
-{\r
- // These are checks that are independent of context\r
- // that can be verified before saving an orphan block.\r
-\r
- // Size limits\r
- if (vtx.empty() || vtx.size() > MAX_SIZE || ::GetSerializeSize(*this, SER_DISK) > MAX_SIZE)\r
- return error("CheckBlock() : size limits failed");\r
-\r
- // Check timestamp\r
- if (nTime > GetAdjustedTime() + 2 * 60 * 60)\r
- return error("CheckBlock() : block timestamp too far in the future");\r
-\r
- // First transaction must be coinbase, the rest must not be\r
- if (vtx.empty() || !vtx[0].IsCoinBase())\r
- return error("CheckBlock() : first tx is not coinbase");\r
- for (int i = 1; i < vtx.size(); i++)\r
- if (vtx[i].IsCoinBase())\r
- return error("CheckBlock() : more than one coinbase");\r
-\r
- // Check transactions\r
- foreach(const CTransaction& tx, vtx)\r
- if (!tx.CheckTransaction())\r
- return error("CheckBlock() : CheckTransaction failed");\r
-\r
- // Check proof of work matches claimed amount\r
- if (CBigNum().SetCompact(nBits) > bnProofOfWorkLimit)\r
- return error("CheckBlock() : nBits below minimum work");\r
- if (GetHash() > CBigNum().SetCompact(nBits).getuint256())\r
- return error("CheckBlock() : hash doesn't match nBits");\r
-\r
- // Check merkleroot\r
- if (hashMerkleRoot != BuildMerkleTree())\r
- return error("CheckBlock() : hashMerkleRoot mismatch");\r
-\r
- return true;\r
-}\r
-\r
-bool CBlock::AcceptBlock()\r
-{\r
- // Check for duplicate\r
- uint256 hash = GetHash();\r
- if (mapBlockIndex.count(hash))\r
- return error("AcceptBlock() : block already in mapBlockIndex");\r
-\r
- // Get prev block index\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);\r
- if (mi == mapBlockIndex.end())\r
- return error("AcceptBlock() : prev block not found");\r
- CBlockIndex* pindexPrev = (*mi).second;\r
-\r
- // Check timestamp against prev\r
- if (nTime <= pindexPrev->GetMedianTimePast())\r
- return error("AcceptBlock() : block's timestamp is too early");\r
-\r
- // Check that all transactions are finalized\r
- foreach(const CTransaction& tx, vtx)\r
- if (!tx.IsFinal(pindexPrev->nHeight+1, nTime))\r
- return error("AcceptBlock() : contains a non-final transaction");\r
-\r
- // Check proof of work\r
- if (nBits != GetNextWorkRequired(pindexPrev))\r
- return error("AcceptBlock() : incorrect proof of work");\r
-\r
- // Check that the block chain matches the known block chain up to a checkpoint\r
- if ((pindexPrev->nHeight+1 == 11111 && hash != uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) ||\r
- (pindexPrev->nHeight+1 == 33333 && hash != uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) ||\r
- (pindexPrev->nHeight+1 == 68555 && hash != uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a")) ||\r
- (pindexPrev->nHeight+1 == 70567 && hash != uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) ||\r
- (pindexPrev->nHeight+1 == 74000 && hash != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")))\r
- return error("AcceptBlock() : rejected by checkpoint lockin at %d", pindexPrev->nHeight+1);\r
-\r
- // Scanback checkpoint lockin\r
- for (CBlockIndex* pindex = pindexPrev; pindex->nHeight >= 74000; pindex = pindex->pprev)\r
- {\r
- if (pindex->nHeight == 74000 && pindex->GetBlockHash() != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))\r
- return error("AcceptBlock() : rejected by scanback lockin at %d", pindex->nHeight);\r
- if (pindex->nHeight == 74638 && pindex->GetBlockHash() == uint256("0x0000000000790ab3f22ec756ad43b6ab569abf0bddeb97c67a6f7b1470a7ec1c"))\r
- return error("AcceptBlock() : rejected by scanback lockin at %d", pindex->nHeight);\r
- }\r
-\r
- // Write block to history file\r
- if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))\r
- return error("AcceptBlock() : out of disk space");\r
- unsigned int nFile;\r
- unsigned int nBlockPos;\r
- if (!WriteToDisk(!fClient, nFile, nBlockPos))\r
- return error("AcceptBlock() : WriteToDisk failed");\r
- if (!AddToBlockIndex(nFile, nBlockPos))\r
- return error("AcceptBlock() : AddToBlockIndex failed");\r
-\r
- // Relay inventory, but don't relay old inventory during initial block download\r
- if (hashBestChain == hash)\r
- CRITICAL_BLOCK(cs_vNodes)\r
- foreach(CNode* pnode, vNodes)\r
- if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 55000))\r
- pnode->PushInventory(CInv(MSG_BLOCK, hash));\r
-\r
- return true;\r
-}\r
-\r
-bool ProcessBlock(CNode* pfrom, CBlock* pblock)\r
-{\r
- // Check for duplicate\r
- uint256 hash = pblock->GetHash();\r
- if (mapBlockIndex.count(hash))\r
- return error("ProcessBlock() : already have block %d %s", mapBlockIndex[hash]->nHeight, hash.ToString().substr(0,16).c_str());\r
- if (mapOrphanBlocks.count(hash))\r
- return error("ProcessBlock() : already have block (orphan) %s", hash.ToString().substr(0,16).c_str());\r
-\r
- // Preliminary checks\r
- if (!pblock->CheckBlock())\r
- {\r
- delete pblock;\r
- return error("ProcessBlock() : CheckBlock FAILED");\r
- }\r
-\r
- // If don't already have its previous block, shunt it off to holding area until we get it\r
- if (!mapBlockIndex.count(pblock->hashPrevBlock))\r
- {\r
- printf("ProcessBlock: ORPHAN BLOCK, prev=%s\n", pblock->hashPrevBlock.ToString().substr(0,16).c_str());\r
- mapOrphanBlocks.insert(make_pair(hash, pblock));\r
- mapOrphanBlocksByPrev.insert(make_pair(pblock->hashPrevBlock, pblock));\r
-\r
- // Ask this guy to fill in what we're missing\r
- if (pfrom)\r
- pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(pblock));\r
- return true;\r
- }\r
-\r
- // Store to disk\r
- if (!pblock->AcceptBlock())\r
- {\r
- delete pblock;\r
- return error("ProcessBlock() : AcceptBlock FAILED");\r
- }\r
- delete pblock;\r
-\r
- // Recursively process any orphan blocks that depended on this one\r
- vector<uint256> vWorkQueue;\r
- vWorkQueue.push_back(hash);\r
- for (int i = 0; i < vWorkQueue.size(); i++)\r
- {\r
- uint256 hashPrev = vWorkQueue[i];\r
- for (multimap<uint256, CBlock*>::iterator mi = mapOrphanBlocksByPrev.lower_bound(hashPrev);\r
- mi != mapOrphanBlocksByPrev.upper_bound(hashPrev);\r
- ++mi)\r
- {\r
- CBlock* pblockOrphan = (*mi).second;\r
- if (pblockOrphan->AcceptBlock())\r
- vWorkQueue.push_back(pblockOrphan->GetHash());\r
- mapOrphanBlocks.erase(pblockOrphan->GetHash());\r
- delete pblockOrphan;\r
- }\r
- mapOrphanBlocksByPrev.erase(hashPrev);\r
- }\r
-\r
- printf("ProcessBlock: ACCEPTED\n");\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-template<typename Stream>\r
-bool ScanMessageStart(Stream& s)\r
-{\r
- // Scan ahead to the next pchMessageStart, which should normally be immediately\r
- // at the file pointer. Leaves file pointer at end of pchMessageStart.\r
- s.clear(0);\r
- short prevmask = s.exceptions(0);\r
- const char* p = BEGIN(pchMessageStart);\r
- try\r
- {\r
- loop\r
- {\r
- char c;\r
- s.read(&c, 1);\r
- if (s.fail())\r
- {\r
- s.clear(0);\r
- s.exceptions(prevmask);\r
- return false;\r
- }\r
- if (*p != c)\r
- p = BEGIN(pchMessageStart);\r
- if (*p == c)\r
- {\r
- if (++p == END(pchMessageStart))\r
- {\r
- s.clear(0);\r
- s.exceptions(prevmask);\r
- return true;\r
- }\r
- }\r
- }\r
- }\r
- catch (...)\r
- {\r
- s.clear(0);\r
- s.exceptions(prevmask);\r
- return false;\r
- }\r
-}\r
-\r
-bool CheckDiskSpace(int64 nAdditionalBytes)\r
-{\r
- uint64 nFreeBytesAvailable = filesystem::space(GetDataDir()).available;\r
-\r
- // Check for 15MB because database could create another 10MB log file at any time\r
- if (nFreeBytesAvailable < (int64)15000000 + nAdditionalBytes)\r
- {\r
- fShutdown = true;\r
- printf("*** %s***\n", _("Warning: Disk space is low "));\r
-#ifdef GUI\r
- ThreadSafeMessageBox(_("Warning: Disk space is low "), "Bitcoin", wxOK | wxICON_EXCLAMATION);\r
-#endif\r
- CreateThread(Shutdown, NULL);\r
- return false;\r
- }\r
- return true;\r
-}\r
-\r
-FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode)\r
-{\r
- if (nFile == -1)\r
- return NULL;\r
- FILE* file = fopen(strprintf("%s/blk%04d.dat", GetDataDir().c_str(), nFile).c_str(), pszMode);\r
- if (!file)\r
- return NULL;\r
- if (nBlockPos != 0 && !strchr(pszMode, 'a') && !strchr(pszMode, 'w'))\r
- {\r
- if (fseek(file, nBlockPos, SEEK_SET) != 0)\r
- {\r
- fclose(file);\r
- return NULL;\r
- }\r
- }\r
- return file;\r
-}\r
-\r
-static unsigned int nCurrentBlockFile = 1;\r
-\r
-FILE* AppendBlockFile(unsigned int& nFileRet)\r
-{\r
- nFileRet = 0;\r
- loop\r
- {\r
- FILE* file = OpenBlockFile(nCurrentBlockFile, 0, "ab");\r
- if (!file)\r
- return NULL;\r
- if (fseek(file, 0, SEEK_END) != 0)\r
- return NULL;\r
- // FAT32 filesize max 4GB, fseek and ftell max 2GB, so we must stay under 2GB\r
- if (ftell(file) < 0x7F000000 - MAX_SIZE)\r
- {\r
- nFileRet = nCurrentBlockFile;\r
- return file;\r
- }\r
- fclose(file);\r
- nCurrentBlockFile++;\r
- }\r
-}\r
-\r
-bool LoadBlockIndex(bool fAllowNew)\r
-{\r
- //\r
- // Load block index\r
- //\r
- CTxDB txdb("cr");\r
- if (!txdb.LoadBlockIndex())\r
- return false;\r
- txdb.Close();\r
-\r
- //\r
- // Init with genesis block\r
- //\r
- if (mapBlockIndex.empty())\r
- {\r
- if (!fAllowNew)\r
- return false;\r
-\r
-\r
- // Genesis Block:\r
- // GetHash() = 0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f\r
- // hashMerkleRoot = 0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b\r
- // txNew.vin[0].scriptSig = 486604799 4 0x736B6E616220726F662074756F6C69616220646E6F63657320666F206B6E697262206E6F20726F6C6C65636E61684320393030322F6E614A2F33302073656D695420656854\r
- // txNew.vout[0].nValue = 5000000000\r
- // txNew.vout[0].scriptPubKey = 0x5F1DF16B2B704C8A578D0BBAF74D385CDE12C11EE50455F3C438EF4C3FBCF649B6DE611FEAE06279A60939E028A8D65C10B73071A6F16719274855FEB0FD8A6704 OP_CHECKSIG\r
- // block.nVersion = 1\r
- // block.nTime = 1231006505\r
- // block.nBits = 0x1d00ffff\r
- // block.nNonce = 2083236893\r
- // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)\r
- // CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)\r
- // CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)\r
- // CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)\r
- // vMerkleTree: 4a5e1e\r
-\r
- // Genesis block\r
- const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";\r
- CTransaction txNew;\r
- txNew.vin.resize(1);\r
- txNew.vout.resize(1);\r
- txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));\r
- txNew.vout[0].nValue = 50 * COIN;\r
- CBigNum bnPubKey;\r
- bnPubKey.SetHex("0x5F1DF16B2B704C8A578D0BBAF74D385CDE12C11EE50455F3C438EF4C3FBCF649B6DE611FEAE06279A60939E028A8D65C10B73071A6F16719274855FEB0FD8A6704");\r
- txNew.vout[0].scriptPubKey = CScript() << bnPubKey << OP_CHECKSIG;\r
- CBlock block;\r
- block.vtx.push_back(txNew);\r
- block.hashPrevBlock = 0;\r
- block.hashMerkleRoot = block.BuildMerkleTree();\r
- block.nVersion = 1;\r
- block.nTime = 1231006505;\r
- block.nBits = 0x1d00ffff;\r
- block.nNonce = 2083236893;\r
-\r
- //// debug print\r
- printf("%s\n", block.GetHash().ToString().c_str());\r
- printf("%s\n", block.hashMerkleRoot.ToString().c_str());\r
- printf("%s\n", hashGenesisBlock.ToString().c_str());\r
- txNew.vout[0].scriptPubKey.print();\r
- block.print();\r
- assert(block.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));\r
-\r
- assert(block.GetHash() == hashGenesisBlock);\r
-\r
- // Start new block file\r
- unsigned int nFile;\r
- unsigned int nBlockPos;\r
- if (!block.WriteToDisk(!fClient, nFile, nBlockPos))\r
- return error("LoadBlockIndex() : writing genesis block to disk failed");\r
- if (!block.AddToBlockIndex(nFile, nBlockPos))\r
- return error("LoadBlockIndex() : genesis block not accepted");\r
- }\r
-\r
- return true;\r
-}\r
-\r
-\r
-\r
-void PrintBlockTree()\r
-{\r
- // precompute tree structure\r
- map<CBlockIndex*, vector<CBlockIndex*> > mapNext;\r
- for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)\r
- {\r
- CBlockIndex* pindex = (*mi).second;\r
- mapNext[pindex->pprev].push_back(pindex);\r
- // test\r
- //while (rand() % 3 == 0)\r
- // mapNext[pindex->pprev].push_back(pindex);\r
- }\r
-\r
- vector<pair<int, CBlockIndex*> > vStack;\r
- vStack.push_back(make_pair(0, pindexGenesisBlock));\r
-\r
- int nPrevCol = 0;\r
- while (!vStack.empty())\r
- {\r
- int nCol = vStack.back().first;\r
- CBlockIndex* pindex = vStack.back().second;\r
- vStack.pop_back();\r
-\r
- // print split or gap\r
- if (nCol > nPrevCol)\r
- {\r
- for (int i = 0; i < nCol-1; i++)\r
- printf("| ");\r
- printf("|\\\n");\r
- }\r
- else if (nCol < nPrevCol)\r
- {\r
- for (int i = 0; i < nCol; i++)\r
- printf("| ");\r
- printf("|\n");\r
- }\r
- nPrevCol = nCol;\r
-\r
- // print columns\r
- for (int i = 0; i < nCol; i++)\r
- printf("| ");\r
-\r
- // print item\r
- CBlock block;\r
- block.ReadFromDisk(pindex);\r
- printf("%d (%u,%u) %s %s tx %d",\r
- pindex->nHeight,\r
- pindex->nFile,\r
- pindex->nBlockPos,\r
- block.GetHash().ToString().substr(0,16).c_str(),\r
- DateTimeStrFormat("%x %H:%M:%S", block.nTime).c_str(),\r
- block.vtx.size());\r
-\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- if (mapWallet.count(block.vtx[0].GetHash()))\r
- {\r
- CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];\r
- printf(" mine: %d %d %d", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());\r
- }\r
- }\r
- printf("\n");\r
-\r
-\r
- // put the main timechain first\r
- vector<CBlockIndex*>& vNext = mapNext[pindex];\r
- for (int i = 0; i < vNext.size(); i++)\r
- {\r
- if (vNext[i]->pnext)\r
- {\r
- swap(vNext[0], vNext[i]);\r
- break;\r
- }\r
- }\r
-\r
- // iterate children\r
- for (int i = 0; i < vNext.size(); i++)\r
- vStack.push_back(make_pair(nCol+i, vNext[i]));\r
- }\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// Messages\r
-//\r
-\r
-\r
-bool AlreadyHave(CTxDB& txdb, const CInv& inv)\r
-{\r
- switch (inv.type)\r
- {\r
- case MSG_TX: return mapTransactions.count(inv.hash) || txdb.ContainsTx(inv.hash);\r
- case MSG_BLOCK: return mapBlockIndex.count(inv.hash) || mapOrphanBlocks.count(inv.hash);\r
- }\r
- // Don't know what it is, just say we already got one\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-bool ProcessMessages(CNode* pfrom)\r
-{\r
- CDataStream& vRecv = pfrom->vRecv;\r
- if (vRecv.empty())\r
- return true;\r
- //if (fDebug)\r
- // printf("ProcessMessages(%d bytes)\n", vRecv.size());\r
-\r
- //\r
- // Message format\r
- // (4) message start\r
- // (12) command\r
- // (4) size\r
- // (4) checksum\r
- // (x) data\r
- //\r
-\r
- loop\r
- {\r
- // Scan for message start\r
- CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));\r
- int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());\r
- if (vRecv.end() - pstart < nHeaderSize)\r
- {\r
- if (vRecv.size() > nHeaderSize)\r
- {\r
- printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");\r
- vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);\r
- }\r
- break;\r
- }\r
- if (pstart - vRecv.begin() > 0)\r
- printf("\n\nPROCESSMESSAGE SKIPPED %d BYTES\n\n", pstart - vRecv.begin());\r
- vRecv.erase(vRecv.begin(), pstart);\r
-\r
- // Read header\r
- vector<char> vHeaderSave(vRecv.begin(), vRecv.begin() + nHeaderSize);\r
- CMessageHeader hdr;\r
- vRecv >> hdr;\r
- if (!hdr.IsValid())\r
- {\r
- printf("\n\nPROCESSMESSAGE: ERRORS IN HEADER %s\n\n\n", hdr.GetCommand().c_str());\r
- continue;\r
- }\r
- string strCommand = hdr.GetCommand();\r
-\r
- // Message size\r
- unsigned int nMessageSize = hdr.nMessageSize;\r
- if (nMessageSize > vRecv.size())\r
- {\r
- // Rewind and wait for rest of message\r
- ///// need a mechanism to give up waiting for overlong message size error\r
- vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());\r
- break;\r
- }\r
-\r
- // Copy message to its own buffer\r
- CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);\r
- vRecv.ignore(nMessageSize);\r
-\r
- // Checksum\r
- if (vRecv.GetVersion() >= 209)\r
- {\r
- uint256 hash = Hash(vMsg.begin(), vMsg.end());\r
- unsigned int nChecksum = 0;\r
- memcpy(&nChecksum, &hash, sizeof(nChecksum));\r
- if (nChecksum != hdr.nChecksum)\r
- {\r
- printf("ProcessMessage(%s, %d bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",\r
- strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);\r
- continue;\r
- }\r
- }\r
-\r
- // Process message\r
- bool fRet = false;\r
- try\r
- {\r
- CRITICAL_BLOCK(cs_main)\r
- fRet = ProcessMessage(pfrom, strCommand, vMsg);\r
- if (fShutdown)\r
- return true;\r
- }\r
- catch (std::ios_base::failure& e)\r
- {\r
- if (strstr(e.what(), "CDataStream::read() : end of data"))\r
- {\r
- // Allow exceptions from underlength message on vRecv\r
- printf("ProcessMessage(%s, %d bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());\r
- }\r
- else if (strstr(e.what(), ": size too large"))\r
- {\r
- // Allow exceptions from overlong size\r
- printf("ProcessMessage(%s, %d bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());\r
- }\r
- else\r
- {\r
- PrintException(&e, "ProcessMessage()");\r
- }\r
- }\r
- catch (std::exception& e) {\r
- PrintException(&e, "ProcessMessage()");\r
- } catch (...) {\r
- PrintException(NULL, "ProcessMessage()");\r
- }\r
-\r
- if (!fRet)\r
- printf("ProcessMessage(%s, %d bytes) FAILED\n", strCommand.c_str(), nMessageSize);\r
- }\r
-\r
- vRecv.Compact();\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)\r
-{\r
- static map<unsigned int, vector<unsigned char> > mapReuseKey;\r
- RandAddSeedPerfmon();\r
- if (fDebug)\r
- printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());\r
- printf("received: %s (%d bytes)\n", strCommand.c_str(), vRecv.size());\r
- if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)\r
- {\r
- printf("dropmessagestest DROPPING RECV MESSAGE\n");\r
- return true;\r
- }\r
-\r
-\r
-\r
-\r
-\r
- if (strCommand == "version")\r
- {\r
- // Each connection can only send one version message\r
- if (pfrom->nVersion != 0)\r
- return false;\r
-\r
- int64 nTime;\r
- CAddress addrMe;\r
- CAddress addrFrom;\r
- uint64 nNonce = 1;\r
- string strSubVer;\r
- vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;\r
- if (pfrom->nVersion == 10300)\r
- pfrom->nVersion = 300;\r
- if (pfrom->nVersion >= 106 && !vRecv.empty())\r
- vRecv >> addrFrom >> nNonce;\r
- if (pfrom->nVersion >= 106 && !vRecv.empty())\r
- vRecv >> strSubVer;\r
- if (pfrom->nVersion >= 209 && !vRecv.empty())\r
- vRecv >> pfrom->nStartingHeight;\r
-\r
- if (pfrom->nVersion == 0)\r
- return false;\r
-\r
- // Disconnect if we connected to ourself\r
- if (nNonce == nLocalHostNonce && nNonce > 1)\r
- {\r
- pfrom->fDisconnect = true;\r
- return true;\r
- }\r
-\r
- pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);\r
- if (pfrom->fClient)\r
- {\r
- pfrom->vSend.nType |= SER_BLOCKHEADERONLY;\r
- pfrom->vRecv.nType |= SER_BLOCKHEADERONLY;\r
- }\r
-\r
- AddTimeData(pfrom->addr.ip, nTime);\r
-\r
- // Change version\r
- if (pfrom->nVersion >= 209)\r
- pfrom->PushMessage("verack");\r
- pfrom->vSend.SetVersion(min(pfrom->nVersion, VERSION));\r
- if (pfrom->nVersion < 209)\r
- pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));\r
-\r
- // Ask the first connected node for block updates\r
- static int nAskedForBlocks;\r
- if (!pfrom->fClient && (nAskedForBlocks < 1 || vNodes.size() <= 1))\r
- {\r
- nAskedForBlocks++;\r
- pfrom->PushGetBlocks(pindexBest, uint256(0));\r
- }\r
-\r
- pfrom->fSuccessfullyConnected = true;\r
-\r
- printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);\r
- }\r
-\r
-\r
- else if (pfrom->nVersion == 0)\r
- {\r
- // Must have a version message before anything else\r
- return false;\r
- }\r
-\r
-\r
- else if (strCommand == "verack")\r
- {\r
- pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));\r
- }\r
-\r
-\r
- else if (strCommand == "addr")\r
- {\r
- vector<CAddress> vAddr;\r
- vRecv >> vAddr;\r
- if (pfrom->nVersion < 200) // don't want addresses from 0.1.5\r
- return true;\r
- if (pfrom->nVersion < 209 && mapAddresses.size() > 1000) // don't want addr from 0.2.0 unless seeding\r
- return true;\r
- if (vAddr.size() > 1000)\r
- return error("message addr size() = %d", vAddr.size());\r
-\r
- // Store the new addresses\r
- foreach(CAddress& addr, vAddr)\r
- {\r
- if (fShutdown)\r
- return true;\r
- // ignore IPv6 for now, since it isn't implemented anyway\r
- if (!addr.IsIPv4())\r
- continue;\r
- addr.nTime = GetAdjustedTime() - 2 * 60 * 60;\r
- if (pfrom->fGetAddr || vAddr.size() > 10)\r
- addr.nTime -= 5 * 24 * 60 * 60;\r
- AddAddress(addr);\r
- pfrom->AddAddressKnown(addr);\r
- if (!pfrom->fGetAddr && addr.IsRoutable())\r
- {\r
- // Relay to a limited number of other nodes\r
- CRITICAL_BLOCK(cs_vNodes)\r
- {\r
- // Use deterministic randomness to send to\r
- // the same places for 12 hours at a time\r
- static uint256 hashSalt;\r
- if (hashSalt == 0)\r
- RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));\r
- uint256 hashRand = addr.ip ^ ((GetTime()+addr.ip)/(12*60*60)) ^ hashSalt;\r
- multimap<uint256, CNode*> mapMix;\r
- foreach(CNode* pnode, vNodes)\r
- mapMix.insert(make_pair(hashRand = Hash(BEGIN(hashRand), END(hashRand)), pnode));\r
- int nRelayNodes = 4;\r
- for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)\r
- ((*mi).second)->PushAddress(addr);\r
- }\r
- }\r
- }\r
- if (vAddr.size() < 1000)\r
- pfrom->fGetAddr = false;\r
- }\r
-\r
-\r
- else if (strCommand == "inv")\r
- {\r
- vector<CInv> vInv;\r
- vRecv >> vInv;\r
- if (vInv.size() > 50000)\r
- return error("message inv size() = %d", vInv.size());\r
-\r
- CTxDB txdb("r");\r
- foreach(const CInv& inv, vInv)\r
- {\r
- if (fShutdown)\r
- return true;\r
- pfrom->AddInventoryKnown(inv);\r
-\r
- bool fAlreadyHave = AlreadyHave(txdb, inv);\r
- printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");\r
-\r
- if (!fAlreadyHave)\r
- pfrom->AskFor(inv);\r
- else if (inv.type == MSG_BLOCK && mapOrphanBlocks.count(inv.hash))\r
- pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(mapOrphanBlocks[inv.hash]));\r
-\r
- // Track requests for our stuff\r
- CRITICAL_BLOCK(cs_mapRequestCount)\r
- {\r
- map<uint256, int>::iterator mi = mapRequestCount.find(inv.hash);\r
- if (mi != mapRequestCount.end())\r
- (*mi).second++;\r
- }\r
- }\r
- }\r
-\r
-\r
- else if (strCommand == "getdata")\r
- {\r
- vector<CInv> vInv;\r
- vRecv >> vInv;\r
- if (vInv.size() > 50000)\r
- return error("message getdata size() = %d", vInv.size());\r
-\r
- foreach(const CInv& inv, vInv)\r
- {\r
- if (fShutdown)\r
- return true;\r
- printf("received getdata for: %s\n", inv.ToString().c_str());\r
-\r
- if (inv.type == MSG_BLOCK)\r
- {\r
- // Send block from disk\r
- map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(inv.hash);\r
- if (mi != mapBlockIndex.end())\r
- {\r
- //// could optimize this to send header straight from blockindex for client\r
- CBlock block;\r
- block.ReadFromDisk((*mi).second, !pfrom->fClient);\r
- pfrom->PushMessage("block", block);\r
-\r
- // Trigger them to send a getblocks request for the next batch of inventory\r
- if (inv.hash == pfrom->hashContinue)\r
- {\r
- // Bypass PushInventory, this must send even if redundant,\r
- // and we want it right after the last block so they don't\r
- // wait for other stuff first.\r
- vector<CInv> vInv;\r
- vInv.push_back(CInv(MSG_BLOCK, hashBestChain));\r
- pfrom->PushMessage("inv", vInv);\r
- pfrom->hashContinue = 0;\r
- }\r
- }\r
- }\r
- else if (inv.IsKnownType())\r
- {\r
- // Send stream from relay memory\r
- CRITICAL_BLOCK(cs_mapRelay)\r
- {\r
- map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);\r
- if (mi != mapRelay.end())\r
- pfrom->PushMessage(inv.GetCommand(), (*mi).second);\r
- }\r
- }\r
-\r
- // Track requests for our stuff\r
- CRITICAL_BLOCK(cs_mapRequestCount)\r
- {\r
- map<uint256, int>::iterator mi = mapRequestCount.find(inv.hash);\r
- if (mi != mapRequestCount.end())\r
- (*mi).second++;\r
- }\r
- }\r
- }\r
-\r
-\r
- else if (strCommand == "getblocks")\r
- {\r
- CBlockLocator locator;\r
- uint256 hashStop;\r
- vRecv >> locator >> hashStop;\r
-\r
- // Find the first block the caller has in the main chain\r
- CBlockIndex* pindex = locator.GetBlockIndex();\r
-\r
- // Send the rest of the chain\r
- if (pindex)\r
- pindex = pindex->pnext;\r
- int nLimit = 500 + locator.GetDistanceBack();\r
- printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,16).c_str(), nLimit);\r
- for (; pindex; pindex = pindex->pnext)\r
- {\r
- if (pindex->GetBlockHash() == hashStop)\r
- {\r
- printf(" getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,16).c_str());\r
- break;\r
- }\r
- pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));\r
- if (--nLimit <= 0)\r
- {\r
- // When this block is requested, we'll send an inv that'll make them\r
- // getblocks the next batch of inventory.\r
- printf(" getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,16).c_str());\r
- pfrom->hashContinue = pindex->GetBlockHash();\r
- break;\r
- }\r
- }\r
- }\r
-\r
-\r
- else if (strCommand == "tx")\r
- {\r
- vector<uint256> vWorkQueue;\r
- CDataStream vMsg(vRecv);\r
- CTransaction tx;\r
- vRecv >> tx;\r
-\r
- CInv inv(MSG_TX, tx.GetHash());\r
- pfrom->AddInventoryKnown(inv);\r
-\r
- bool fMissingInputs = false;\r
- if (tx.AcceptTransaction(true, &fMissingInputs))\r
- {\r
- AddToWalletIfMine(tx, NULL);\r
- RelayMessage(inv, vMsg);\r
- mapAlreadyAskedFor.erase(inv);\r
- vWorkQueue.push_back(inv.hash);\r
-\r
- // Recursively process any orphan transactions that depended on this one\r
- for (int i = 0; i < vWorkQueue.size(); i++)\r
- {\r
- uint256 hashPrev = vWorkQueue[i];\r
- for (multimap<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev.lower_bound(hashPrev);\r
- mi != mapOrphanTransactionsByPrev.upper_bound(hashPrev);\r
- ++mi)\r
- {\r
- const CDataStream& vMsg = *((*mi).second);\r
- CTransaction tx;\r
- CDataStream(vMsg) >> tx;\r
- CInv inv(MSG_TX, tx.GetHash());\r
-\r
- if (tx.AcceptTransaction(true))\r
- {\r
- printf(" accepted orphan tx %s\n", inv.hash.ToString().substr(0,6).c_str());\r
- AddToWalletIfMine(tx, NULL);\r
- RelayMessage(inv, vMsg);\r
- mapAlreadyAskedFor.erase(inv);\r
- vWorkQueue.push_back(inv.hash);\r
- }\r
- }\r
- }\r
-\r
- foreach(uint256 hash, vWorkQueue)\r
- EraseOrphanTx(hash);\r
- }\r
- else if (fMissingInputs)\r
- {\r
- printf("storing orphan tx %s\n", inv.hash.ToString().substr(0,6).c_str());\r
- AddOrphanTx(vMsg);\r
- }\r
- }\r
-\r
-\r
- else if (strCommand == "block")\r
- {\r
- auto_ptr<CBlock> pblock(new CBlock);\r
- vRecv >> *pblock;\r
-\r
- //// debug print\r
- printf("received block %s\n", pblock->GetHash().ToString().substr(0,16).c_str());\r
- // pblock->print();\r
-\r
- CInv inv(MSG_BLOCK, pblock->GetHash());\r
- pfrom->AddInventoryKnown(inv);\r
-\r
- if (ProcessBlock(pfrom, pblock.release()))\r
- mapAlreadyAskedFor.erase(inv);\r
- }\r
-\r
-\r
- else if (strCommand == "getaddr")\r
- {\r
- // This includes all nodes that are currently online,\r
- // since they rebroadcast an addr every 24 hours\r
- pfrom->vAddrToSend.clear();\r
- int64 nSince = GetAdjustedTime() - 12 * 60 * 60; // in the last 12 hours\r
- CRITICAL_BLOCK(cs_mapAddresses)\r
- {\r
- unsigned int nSize = mapAddresses.size();\r
- foreach(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)\r
- {\r
- if (fShutdown)\r
- return true;\r
- const CAddress& addr = item.second;\r
- if (addr.nTime > nSince)\r
- pfrom->PushAddress(addr);\r
- }\r
- }\r
- }\r
-\r
-\r
- else if (strCommand == "checkorder")\r
- {\r
- uint256 hashReply;\r
- CWalletTx order;\r
- vRecv >> hashReply >> order;\r
-\r
- /// we have a chance to check the order here\r
-\r
- // Keep giving the same key to the same ip until they use it\r
- if (!mapReuseKey.count(pfrom->addr.ip))\r
- mapReuseKey[pfrom->addr.ip] = GenerateNewKey();\r
-\r
- // Send back approval of order and pubkey to use\r
- CScript scriptPubKey;\r
- scriptPubKey << mapReuseKey[pfrom->addr.ip] << OP_CHECKSIG;\r
- pfrom->PushMessage("reply", hashReply, (int)0, scriptPubKey);\r
- }\r
-\r
-\r
- else if (strCommand == "submitorder")\r
- {\r
- uint256 hashReply;\r
- CWalletTx wtxNew;\r
- vRecv >> hashReply >> wtxNew;\r
- wtxNew.fFromMe = false;\r
-\r
- // Broadcast\r
- if (!wtxNew.AcceptWalletTransaction())\r
- {\r
- pfrom->PushMessage("reply", hashReply, (int)1);\r
- return error("submitorder AcceptWalletTransaction() failed, returning error 1");\r
- }\r
- wtxNew.fTimeReceivedIsTxTime = true;\r
- AddToWallet(wtxNew);\r
- wtxNew.RelayWalletTransaction();\r
- mapReuseKey.erase(pfrom->addr.ip);\r
-\r
- // Send back confirmation\r
- pfrom->PushMessage("reply", hashReply, (int)0);\r
- }\r
-\r
-\r
- else if (strCommand == "reply")\r
- {\r
- uint256 hashReply;\r
- vRecv >> hashReply;\r
-\r
- CRequestTracker tracker;\r
- CRITICAL_BLOCK(pfrom->cs_mapRequests)\r
- {\r
- map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);\r
- if (mi != pfrom->mapRequests.end())\r
- {\r
- tracker = (*mi).second;\r
- pfrom->mapRequests.erase(mi);\r
- }\r
- }\r
- if (!tracker.IsNull())\r
- tracker.fn(tracker.param1, vRecv);\r
- }\r
-\r
-\r
- else if (strCommand == "ping")\r
- {\r
- }\r
-\r
-\r
- else\r
- {\r
- // Ignore unknown commands for extensibility\r
- }\r
-\r
-\r
- // Update the last seen time for this node's address\r
- if (pfrom->fNetworkNode)\r
- if (strCommand == "version" || strCommand == "addr" || strCommand == "inv" || strCommand == "getdata" || strCommand == "ping")\r
- AddressCurrentlyConnected(pfrom->addr);\r
-\r
-\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-bool SendMessages(CNode* pto, bool fSendTrickle)\r
-{\r
- CRITICAL_BLOCK(cs_main)\r
- {\r
- // Don't send anything until we get their version message\r
- if (pto->nVersion == 0)\r
- return true;\r
-\r
- // Keep-alive ping\r
- if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())\r
- pto->PushMessage("ping");\r
-\r
- // Address refresh broadcast\r
- static int64 nLastRebroadcast;\r
- if (GetTime() - nLastRebroadcast > 24 * 60 * 60) // every 24 hours\r
- {\r
- nLastRebroadcast = GetTime();\r
- CRITICAL_BLOCK(cs_vNodes)\r
- {\r
- foreach(CNode* pnode, vNodes)\r
- {\r
- // Periodically clear setAddrKnown to allow refresh broadcasts\r
- pnode->setAddrKnown.clear();\r
-\r
- // Rebroadcast our address\r
- if (addrLocalHost.IsRoutable() && !fUseProxy)\r
- pnode->PushAddress(addrLocalHost);\r
- }\r
- }\r
- }\r
-\r
- // Resend wallet transactions that haven't gotten in a block yet\r
- ResendWalletTransactions();\r
-\r
-\r
- //\r
- // Message: addr\r
- //\r
- if (fSendTrickle)\r
- {\r
- vector<CAddress> vAddr;\r
- vAddr.reserve(pto->vAddrToSend.size());\r
- foreach(const CAddress& addr, pto->vAddrToSend)\r
- {\r
- // returns true if wasn't already contained in the set\r
- if (pto->setAddrKnown.insert(addr).second)\r
- {\r
- vAddr.push_back(addr);\r
- // receiver rejects addr messages larger than 1000\r
- if (vAddr.size() >= 1000)\r
- {\r
- pto->PushMessage("addr", vAddr);\r
- vAddr.clear();\r
- }\r
- }\r
- }\r
- pto->vAddrToSend.clear();\r
- if (!vAddr.empty())\r
- pto->PushMessage("addr", vAddr);\r
- }\r
-\r
-\r
- //\r
- // Message: inventory\r
- //\r
- vector<CInv> vInv;\r
- vector<CInv> vInvWait;\r
- CRITICAL_BLOCK(pto->cs_inventory)\r
- {\r
- vInv.reserve(pto->vInventoryToSend.size());\r
- vInvWait.reserve(pto->vInventoryToSend.size());\r
- foreach(const CInv& inv, pto->vInventoryToSend)\r
- {\r
- if (pto->setInventoryKnown.count(inv))\r
- continue;\r
-\r
- // trickle out tx inv to protect privacy\r
- if (inv.type == MSG_TX && !fSendTrickle)\r
- {\r
- // 1/4 of tx invs blast to all immediately\r
- static uint256 hashSalt;\r
- if (hashSalt == 0)\r
- RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));\r
- uint256 hashRand = inv.hash ^ hashSalt;\r
- hashRand = Hash(BEGIN(hashRand), END(hashRand));\r
- bool fTrickleWait = ((hashRand & 3) != 0);\r
-\r
- // always trickle our own transactions\r
- if (!fTrickleWait)\r
- {\r
- TRY_CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- map<uint256, CWalletTx>::iterator mi = mapWallet.find(inv.hash);\r
- if (mi != mapWallet.end())\r
- {\r
- CWalletTx& wtx = (*mi).second;\r
- if (wtx.fFromMe)\r
- fTrickleWait = true;\r
- }\r
- }\r
- }\r
-\r
- if (fTrickleWait)\r
- {\r
- vInvWait.push_back(inv);\r
- continue;\r
- }\r
- }\r
-\r
- // returns true if wasn't already contained in the set\r
- if (pto->setInventoryKnown.insert(inv).second)\r
- {\r
- vInv.push_back(inv);\r
- if (vInv.size() >= 1000)\r
- {\r
- pto->PushMessage("inv", vInv);\r
- vInv.clear();\r
- }\r
- }\r
- }\r
- pto->vInventoryToSend = vInvWait;\r
- }\r
- if (!vInv.empty())\r
- pto->PushMessage("inv", vInv);\r
-\r
-\r
- //\r
- // Message: getdata\r
- //\r
- vector<CInv> vGetData;\r
- int64 nNow = GetTime() * 1000000;\r
- CTxDB txdb("r");\r
- while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow)\r
- {\r
- const CInv& inv = (*pto->mapAskFor.begin()).second;\r
- if (!AlreadyHave(txdb, inv))\r
- {\r
- printf("sending getdata: %s\n", inv.ToString().c_str());\r
- vGetData.push_back(inv);\r
- if (vGetData.size() >= 1000)\r
- {\r
- pto->PushMessage("getdata", vGetData);\r
- vGetData.clear();\r
- }\r
- }\r
- pto->mapAskFor.erase(pto->mapAskFor.begin());\r
- }\r
- if (!vGetData.empty())\r
- pto->PushMessage("getdata", vGetData);\r
-\r
- }\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// BitcoinMiner\r
-//\r
-\r
-void GenerateBitcoins(bool fGenerate)\r
-{\r
- if (fGenerateBitcoins != fGenerate)\r
- {\r
- fGenerateBitcoins = fGenerate;\r
- CWalletDB().WriteSetting("fGenerateBitcoins", fGenerateBitcoins);\r
- MainFrameRepaint();\r
- }\r
- if (fGenerateBitcoins)\r
- {\r
- int nProcessors = boost::thread::hardware_concurrency();\r
- printf("%d processors\n", nProcessors);\r
- if (nProcessors < 1)\r
- nProcessors = 1;\r
- if (fLimitProcessors && nProcessors > nLimitProcessors)\r
- nProcessors = nLimitProcessors;\r
- int nAddThreads = nProcessors - vnThreadsRunning[3];\r
- printf("Starting %d BitcoinMiner threads\n", nAddThreads);\r
- for (int i = 0; i < nAddThreads; i++)\r
- {\r
- if (!CreateThread(ThreadBitcoinMiner, NULL))\r
- printf("Error: CreateThread(ThreadBitcoinMiner) failed\n");\r
- Sleep(10);\r
- }\r
- }\r
-}\r
-\r
-void ThreadBitcoinMiner(void* parg)\r
-{\r
- try\r
- {\r
- vnThreadsRunning[3]++;\r
- BitcoinMiner();\r
- vnThreadsRunning[3]--;\r
- }\r
- catch (std::exception& e) {\r
- vnThreadsRunning[3]--;\r
- PrintException(&e, "ThreadBitcoinMiner()");\r
- } catch (...) {\r
- vnThreadsRunning[3]--;\r
- PrintException(NULL, "ThreadBitcoinMiner()");\r
- }\r
- UIThreadCall(bind(CalledSetStatusBar, "", 0));\r
- nHPSTimerStart = 0;\r
- if (vnThreadsRunning[3] == 0)\r
- dHashesPerSec = 0;\r
- printf("ThreadBitcoinMiner exiting, %d threads remaining\n", vnThreadsRunning[3]);\r
-}\r
-\r
-int FormatHashBlocks(void* pbuffer, unsigned int len)\r
-{\r
- unsigned char* pdata = (unsigned char*)pbuffer;\r
- unsigned int blocks = 1 + ((len + 8) / 64);\r
- unsigned char* pend = pdata + 64 * blocks;\r
- memset(pdata + len, 0, 64 * blocks - len);\r
- pdata[len] = 0x80;\r
- unsigned int bits = len * 8;\r
- pend[-1] = (bits >> 0) & 0xff;\r
- pend[-2] = (bits >> 8) & 0xff;\r
- pend[-3] = (bits >> 16) & 0xff;\r
- pend[-4] = (bits >> 24) & 0xff;\r
- return blocks;\r
-}\r
-\r
-using CryptoPP::ByteReverse;\r
-\r
-static const unsigned int pSHA256InitState[8] =\r
-{0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};\r
-\r
-inline void SHA256Transform(void* pstate, void* pinput, const void* pinit)\r
-{\r
- memcpy(pstate, pinit, 32);\r
- CryptoPP::SHA256::Transform((CryptoPP::word32*)pstate, (CryptoPP::word32*)pinput);\r
-}\r
-\r
-static const int NPAR = 32;\r
-extern void Double_BlockSHA256(const void* pin, void* pout, const void* pinit, unsigned int hash[8][NPAR], const void* init2);\r
-\r
-\r
-\r
-\r
-void BitcoinMiner()\r
-{\r
- printf("BitcoinMiner started\n");\r
- SetThreadPriority(THREAD_PRIORITY_LOWEST);\r
-\r
- CKey key;\r
- key.MakeNewKey();\r
- CBigNum bnExtraNonce = 0;\r
- while (fGenerateBitcoins)\r
- {\r
- Sleep(50);\r
- if (fShutdown)\r
- return;\r
- while (vNodes.empty() || IsInitialBlockDownload())\r
- {\r
- Sleep(1000);\r
- if (fShutdown)\r
- return;\r
- if (!fGenerateBitcoins)\r
- return;\r
- }\r
-\r
- unsigned int nTransactionsUpdatedLast = nTransactionsUpdated;\r
- CBlockIndex* pindexPrev = pindexBest;\r
- unsigned int nBits = GetNextWorkRequired(pindexPrev);\r
-\r
-\r
- //\r
- // Create coinbase tx\r
- //\r
- CTransaction txNew;\r
- txNew.vin.resize(1);\r
- txNew.vin[0].prevout.SetNull();\r
- txNew.vin[0].scriptSig << nBits << ++bnExtraNonce;\r
- txNew.vout.resize(1);\r
- txNew.vout[0].scriptPubKey << key.GetPubKey() << OP_CHECKSIG;\r
-\r
-\r
- //\r
- // Create new block\r
- //\r
- auto_ptr<CBlock> pblock(new CBlock());\r
- if (!pblock.get())\r
- return;\r
-\r
- // Add our coinbase tx as first transaction\r
- pblock->vtx.push_back(txNew);\r
-\r
- // Collect the latest transactions into the block\r
- int64 nFees = 0;\r
- CRITICAL_BLOCK(cs_main)\r
- CRITICAL_BLOCK(cs_mapTransactions)\r
- {\r
- CTxDB txdb("r");\r
- map<uint256, CTxIndex> mapTestPool;\r
- vector<char> vfAlreadyAdded(mapTransactions.size());\r
- bool fFoundSomething = true;\r
- unsigned int nBlockSize = 0;\r
- while (fFoundSomething && nBlockSize < MAX_SIZE/2)\r
- {\r
- fFoundSomething = false;\r
- unsigned int n = 0;\r
- for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi, ++n)\r
- {\r
- if (vfAlreadyAdded[n])\r
- continue;\r
- CTransaction& tx = (*mi).second;\r
- if (tx.IsCoinBase() || !tx.IsFinal())\r
- continue;\r
- unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);\r
- if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE - 10000)\r
- continue;\r
-\r
- // Transaction fee based on block size\r
- int64 nMinFee = tx.GetMinFee(nBlockSize);\r
-\r
- map<uint256, CTxIndex> mapTestPoolTmp(mapTestPool);\r
- if (!tx.ConnectInputs(txdb, mapTestPoolTmp, CDiskTxPos(1,1,1), pindexPrev, nFees, false, true, nMinFee))\r
- continue;\r
- swap(mapTestPool, mapTestPoolTmp);\r
-\r
- pblock->vtx.push_back(tx);\r
- nBlockSize += nTxSize;\r
- vfAlreadyAdded[n] = true;\r
- fFoundSomething = true;\r
- }\r
- }\r
- }\r
- pblock->nBits = nBits;\r
- pblock->vtx[0].vout[0].nValue = pblock->GetBlockValue(pindexPrev->nHeight+1, nFees);\r
- printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());\r
-\r
-\r
- //\r
- // Prebuild hash buffer\r
- //\r
- struct tmpworkspace\r
- {\r
- struct unnamed2\r
- {\r
- int nVersion;\r
- uint256 hashPrevBlock;\r
- uint256 hashMerkleRoot;\r
- unsigned int nTime;\r
- unsigned int nBits;\r
- unsigned int nNonce;\r
- }\r
- block;\r
- unsigned char pchPadding0[64];\r
- uint256 hash1;\r
- unsigned char pchPadding1[64];\r
- };\r
- char tmpbuf[sizeof(tmpworkspace)+16];\r
- tmpworkspace& tmp = *(tmpworkspace*)alignup<16>(tmpbuf);\r
-\r
- tmp.block.nVersion = pblock->nVersion;\r
- tmp.block.hashPrevBlock = pblock->hashPrevBlock = (pindexPrev ? pindexPrev->GetBlockHash() : 0);\r
- tmp.block.hashMerkleRoot = pblock->hashMerkleRoot = pblock->BuildMerkleTree();\r
- tmp.block.nTime = pblock->nTime = max((pindexPrev ? pindexPrev->GetMedianTimePast()+1 : 0), GetAdjustedTime());\r
- tmp.block.nBits = pblock->nBits = nBits;\r
- tmp.block.nNonce = pblock->nNonce = 0;\r
-\r
- unsigned int nBlocks0 = FormatHashBlocks(&tmp.block, sizeof(tmp.block));\r
- unsigned int nBlocks1 = FormatHashBlocks(&tmp.hash1, sizeof(tmp.hash1));\r
-\r
- // Byte swap all the input buffer\r
- for (int i = 0; i < sizeof(tmp)/4; i++)\r
- ((unsigned int*)&tmp)[i] = ByteReverse(((unsigned int*)&tmp)[i]);\r
-\r
- // Precalc the first half of the first hash, which stays constant\r
- uint256 midstatebuf[2];\r
- uint256& midstate = *alignup<16>(midstatebuf);\r
- SHA256Transform(&midstate, &tmp.block, pSHA256InitState);\r
-\r
-\r
- //\r
- // Search\r
- //\r
- bool f4WaySSE2 = mapArgs.count("-4way");\r
- int64 nStart = GetTime();\r
- uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();\r
- uint256 hashbuf[2];\r
- uint256& hash = *alignup<16>(hashbuf);\r
- loop\r
- {\r
-#ifdef FOURWAYSSE2\r
- if (f4WaySSE2)\r
- {\r
- // tcatm's 4-way SSE2 SHA-256\r
- tmp.block.nNonce += NPAR;\r
- unsigned int thashbuf[9][NPAR];\r
- unsigned int (&thash)[9][NPAR] = *alignup<16>(&thashbuf);\r
- Double_BlockSHA256((char*)&tmp.block + 64, &tmp.hash1, &midstate, thash, pSHA256InitState);\r
- ((unsigned short*)&hash)[14] = 0xffff;\r
- for (int j = 0; j < NPAR; j++)\r
- {\r
- if (thash[7][j] == 0)\r
- {\r
- for (int i = 0; i < sizeof(hash)/4; i++)\r
- ((unsigned int*)&hash)[i] = thash[i][j];\r
- pblock->nNonce = ByteReverse(tmp.block.nNonce + j);\r
- }\r
- }\r
- }\r
- else\r
-#endif\r
- {\r
- // Crypto++ SHA-256\r
- tmp.block.nNonce++;\r
- SHA256Transform(&tmp.hash1, (char*)&tmp.block + 64, &midstate);\r
- SHA256Transform(&hash, &tmp.hash1, pSHA256InitState);\r
- }\r
-\r
- if (((unsigned short*)&hash)[14] == 0)\r
- {\r
- // Byte swap the result after preliminary check\r
- for (int i = 0; i < sizeof(hash)/4; i++)\r
- ((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);\r
-\r
- if (hash <= hashTarget)\r
- {\r
-#ifdef FOURWAYSSE2\r
- if (!f4WaySSE2)\r
-#endif\r
- pblock->nNonce = ByteReverse(tmp.block.nNonce);\r
- assert(hash == pblock->GetHash());\r
-\r
- //// debug print\r
- printf("BitcoinMiner:\n");\r
- printf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex().c_str(), hashTarget.GetHex().c_str());\r
- pblock->print();\r
- printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());\r
- printf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue).c_str());\r
-\r
- SetThreadPriority(THREAD_PRIORITY_NORMAL);\r
- CRITICAL_BLOCK(cs_main)\r
- {\r
- if (pindexPrev == pindexBest)\r
- {\r
- // Save key\r
- if (!AddKey(key))\r
- return;\r
- key.MakeNewKey();\r
-\r
- // Track how many getdata requests this block gets\r
- CRITICAL_BLOCK(cs_mapRequestCount)\r
- mapRequestCount[pblock->GetHash()] = 0;\r
-\r
- // Process this block the same as if we had received it from another node\r
- if (!ProcessBlock(NULL, pblock.release()))\r
- printf("ERROR in BitcoinMiner, ProcessBlock, block not accepted\n");\r
- }\r
- }\r
- SetThreadPriority(THREAD_PRIORITY_LOWEST);\r
-\r
- Sleep(500);\r
- break;\r
- }\r
- }\r
-\r
- // Update nTime every few seconds\r
- const unsigned int nMask = 0xffff;\r
- const int nHashesPerCycle = (nMask+1);\r
- if ((tmp.block.nNonce & nMask) == 0)\r
- {\r
- // Meter hashes/sec\r
- static int nCycleCounter;\r
- if (nHPSTimerStart == 0)\r
- {\r
- nHPSTimerStart = GetTimeMillis();\r
- nCycleCounter = 0;\r
- }\r
- else\r
- nCycleCounter++;\r
- if (GetTimeMillis() - nHPSTimerStart > 4000)\r
- {\r
- static CCriticalSection cs;\r
- CRITICAL_BLOCK(cs)\r
- {\r
- if (GetTimeMillis() - nHPSTimerStart > 4000)\r
- {\r
- dHashesPerSec = 1000.0 * nHashesPerCycle * nCycleCounter / (GetTimeMillis() - nHPSTimerStart);\r
- nHPSTimerStart = GetTimeMillis();\r
- nCycleCounter = 0;\r
- string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);\r
- UIThreadCall(bind(CalledSetStatusBar, strStatus, 0));\r
- static int64 nLogTime;\r
- if (GetTime() - nLogTime > 30 * 60)\r
- {\r
- nLogTime = GetTime();\r
- printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());\r
- printf("hashmeter %3d CPUs %6.0f khash/s\n", vnThreadsRunning[3], dHashesPerSec/1000.0);\r
- }\r
- }\r
- }\r
- }\r
-\r
- // Check for stop or if block needs to be rebuilt\r
- if (fShutdown)\r
- return;\r
- if (!fGenerateBitcoins)\r
- return;\r
- if (fLimitProcessors && vnThreadsRunning[3] > nLimitProcessors)\r
- return;\r
- if (vNodes.empty())\r
- break;\r
- if (tmp.block.nNonce == 0)\r
- break;\r
- if (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)\r
- break;\r
- if (pindexPrev != pindexBest)\r
- break;\r
-\r
- pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());\r
- tmp.block.nTime = ByteReverse(pblock->nTime);\r
- }\r
- }\r
- }\r
-}\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-\r
-//////////////////////////////////////////////////////////////////////////////\r
-//\r
-// Actions\r
-//\r
-\r
-\r
-int64 GetBalance()\r
-{\r
- int64 nStart = GetTimeMillis();\r
-\r
- int64 nTotal = 0;\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)\r
- {\r
- CWalletTx* pcoin = &(*it).second;\r
- if (!pcoin->IsFinal() || pcoin->fSpent)\r
- continue;\r
- nTotal += pcoin->GetCredit(true);\r
- }\r
- }\r
-\r
- //printf("GetBalance() %"PRI64d"ms\n", GetTimeMillis() - nStart);\r
- return nTotal;\r
-}\r
-\r
-\r
-int GetRandInt(int nMax)\r
-{\r
- return GetRand(nMax);\r
-}\r
-\r
-bool SelectCoins(int64 nTargetValue, set<CWalletTx*>& setCoinsRet)\r
-{\r
- setCoinsRet.clear();\r
-\r
- // List of values less than target\r
- int64 nLowestLarger = INT64_MAX;\r
- CWalletTx* pcoinLowestLarger = NULL;\r
- vector<pair<int64, CWalletTx*> > vValue;\r
- int64 nTotalLower = 0;\r
-\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- vector<CWalletTx*> vCoins;\r
- vCoins.reserve(mapWallet.size());\r
- for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)\r
- vCoins.push_back(&(*it).second);\r
- random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);\r
-\r
- foreach(CWalletTx* pcoin, vCoins)\r
- {\r
- if (!pcoin->IsFinal() || pcoin->fSpent)\r
- continue;\r
- int64 n = pcoin->GetCredit();\r
- if (n <= 0)\r
- continue;\r
- if (n < nTargetValue)\r
- {\r
- vValue.push_back(make_pair(n, pcoin));\r
- nTotalLower += n;\r
- }\r
- else if (n == nTargetValue)\r
- {\r
- setCoinsRet.insert(pcoin);\r
- return true;\r
- }\r
- else if (n < nLowestLarger)\r
- {\r
- nLowestLarger = n;\r
- pcoinLowestLarger = pcoin;\r
- }\r
- }\r
- }\r
-\r
- if (nTotalLower < nTargetValue)\r
- {\r
- if (pcoinLowestLarger == NULL)\r
- return false;\r
- setCoinsRet.insert(pcoinLowestLarger);\r
- return true;\r
- }\r
-\r
- // Solve subset sum by stochastic approximation\r
- sort(vValue.rbegin(), vValue.rend());\r
- vector<char> vfIncluded;\r
- vector<char> vfBest(vValue.size(), true);\r
- int64 nBest = nTotalLower;\r
-\r
- for (int nRep = 0; nRep < 1000 && nBest != nTargetValue; nRep++)\r
- {\r
- vfIncluded.assign(vValue.size(), false);\r
- int64 nTotal = 0;\r
- bool fReachedTarget = false;\r
- for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)\r
- {\r
- for (int i = 0; i < vValue.size(); i++)\r
- {\r
- if (nPass == 0 ? rand() % 2 : !vfIncluded[i])\r
- {\r
- nTotal += vValue[i].first;\r
- vfIncluded[i] = true;\r
- if (nTotal >= nTargetValue)\r
- {\r
- fReachedTarget = true;\r
- if (nTotal < nBest)\r
- {\r
- nBest = nTotal;\r
- vfBest = vfIncluded;\r
- }\r
- nTotal -= vValue[i].first;\r
- vfIncluded[i] = false;\r
- }\r
- }\r
- }\r
- }\r
- }\r
-\r
- // If the next larger is still closer, return it\r
- if (pcoinLowestLarger && nLowestLarger - nTargetValue <= nBest - nTargetValue)\r
- setCoinsRet.insert(pcoinLowestLarger);\r
- else\r
- {\r
- for (int i = 0; i < vValue.size(); i++)\r
- if (vfBest[i])\r
- setCoinsRet.insert(vValue[i].second);\r
-\r
- //// debug print\r
- printf("SelectCoins() best subset: ");\r
- for (int i = 0; i < vValue.size(); i++)\r
- if (vfBest[i])\r
- printf("%s ", FormatMoney(vValue[i].first).c_str());\r
- printf("total %s\n", FormatMoney(nBest).c_str());\r
- }\r
-\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CKey& keyRet, int64& nFeeRequiredRet)\r
-{\r
- nFeeRequiredRet = 0;\r
- CRITICAL_BLOCK(cs_main)\r
- {\r
- // txdb must be opened before the mapWallet lock\r
- CTxDB txdb("r");\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- int64 nFee = nTransactionFee;\r
- loop\r
- {\r
- wtxNew.vin.clear();\r
- wtxNew.vout.clear();\r
- wtxNew.fFromMe = true;\r
- if (nValue < 0)\r
- return false;\r
- int64 nValueOut = nValue;\r
- int64 nTotalValue = nValue + nFee;\r
-\r
- // Choose coins to use\r
- set<CWalletTx*> setCoins;\r
- if (!SelectCoins(nTotalValue, setCoins))\r
- return false;\r
- int64 nValueIn = 0;\r
- foreach(CWalletTx* pcoin, setCoins)\r
- nValueIn += pcoin->GetCredit();\r
-\r
- // Fill a vout to the payee\r
- bool fChangeFirst = GetRand(2);\r
- if (!fChangeFirst)\r
- wtxNew.vout.push_back(CTxOut(nValueOut, scriptPubKey));\r
-\r
- // Fill a vout back to self with any change\r
- if (nValueIn > nTotalValue)\r
- {\r
- // Note: We use a new key here to keep it from being obvious which side is the change.\r
- // The drawback is that by not reusing a previous key, the change may be lost if a\r
- // backup is restored, if the backup doesn't have the new private key for the change.\r
- // If we reused the old key, it would be possible to add code to look for and\r
- // rediscover unknown transactions that were written with keys of ours to recover\r
- // post-backup change.\r
-\r
- // New private key\r
- if (keyRet.IsNull())\r
- keyRet.MakeNewKey();\r
-\r
- // Fill a vout to ourself, using same address type as the payment\r
- CScript scriptChange;\r
- if (scriptPubKey.GetBitcoinAddressHash160() != 0)\r
- scriptChange.SetBitcoinAddress(keyRet.GetPubKey());\r
- else\r
- scriptChange << keyRet.GetPubKey() << OP_CHECKSIG;\r
- wtxNew.vout.push_back(CTxOut(nValueIn - nTotalValue, scriptChange));\r
- }\r
-\r
- // Fill a vout to the payee\r
- if (fChangeFirst)\r
- wtxNew.vout.push_back(CTxOut(nValueOut, scriptPubKey));\r
-\r
- // Fill vin\r
- foreach(CWalletTx* pcoin, setCoins)\r
- for (int nOut = 0; nOut < pcoin->vout.size(); nOut++)\r
- if (pcoin->vout[nOut].IsMine())\r
- wtxNew.vin.push_back(CTxIn(pcoin->GetHash(), nOut));\r
-\r
- // Sign\r
- int nIn = 0;\r
- foreach(CWalletTx* pcoin, setCoins)\r
- for (int nOut = 0; nOut < pcoin->vout.size(); nOut++)\r
- if (pcoin->vout[nOut].IsMine())\r
- if (!SignSignature(*pcoin, wtxNew, nIn++))\r
- return false;\r
-\r
- // Check that enough fee is included\r
- if (nFee < wtxNew.GetMinFee())\r
- {\r
- nFee = nFeeRequiredRet = wtxNew.GetMinFee();\r
- continue;\r
- }\r
-\r
- // Fill vtxPrev by copying from previous transactions vtxPrev\r
- wtxNew.AddSupportingTransactions(txdb);\r
- wtxNew.fTimeReceivedIsTxTime = true;\r
-\r
- break;\r
- }\r
- }\r
- }\r
- return true;\r
-}\r
-\r
-// Call after CreateTransaction unless you want to abort\r
-bool CommitTransaction(CWalletTx& wtxNew, const CKey& key)\r
-{\r
- CRITICAL_BLOCK(cs_main)\r
- {\r
- printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());\r
- CRITICAL_BLOCK(cs_mapWallet)\r
- {\r
- // This is only to keep the database open to defeat the auto-flush for the\r
- // duration of this scope. This is the only place where this optimization\r
- // maybe makes sense; please don't do it anywhere else.\r
- CWalletDB walletdb("r");\r
-\r
- // Add the change's private key to wallet\r
- if (!key.IsNull() && !AddKey(key))\r
- throw runtime_error("CommitTransaction() : AddKey failed\n");\r
-\r
- // Add tx to wallet, because if it has change it's also ours,\r
- // otherwise just for transaction history.\r
- AddToWallet(wtxNew);\r
-\r
- // Mark old coins as spent\r
- set<CWalletTx*> setCoins;\r
- foreach(const CTxIn& txin, wtxNew.vin)\r
- setCoins.insert(&mapWallet[txin.prevout.hash]);\r
- foreach(CWalletTx* pcoin, setCoins)\r
- {\r
- pcoin->fSpent = true;\r
- pcoin->WriteToDisk();\r
- vWalletUpdated.push_back(pcoin->GetHash());\r
- }\r
- }\r
-\r
- // Track how many getdata requests our transaction gets\r
- CRITICAL_BLOCK(cs_mapRequestCount)\r
- mapRequestCount[wtxNew.GetHash()] = 0;\r
-\r
- // Broadcast\r
- if (!wtxNew.AcceptTransaction())\r
- {\r
- // This must not fail. The transaction has already been signed and recorded.\r
- printf("CommitTransaction() : Error: Transaction not valid");\r
- return false;\r
- }\r
- wtxNew.RelayWalletTransaction();\r
- }\r
- MainFrameRepaint();\r
- return true;\r
-}\r
-\r
-\r
-\r
-\r
-string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)\r
-{\r
- CRITICAL_BLOCK(cs_main)\r
- {\r
- CKey key;\r
- int64 nFeeRequired;\r
- if (!CreateTransaction(scriptPubKey, nValue, wtxNew, key, nFeeRequired))\r
- {\r
- string strError;\r
- if (nValue + nFeeRequired > GetBalance())\r
- strError = strprintf(_("Error: This is an oversized transaction that requires a transaction fee of %s "), FormatMoney(nFeeRequired).c_str());\r
- else\r
- strError = _("Error: Transaction creation failed ");\r
- printf("SendMoney() : %s", strError.c_str());\r
- return strError;\r
- }\r
-\r
- if (fAskFee && !ThreadSafeAskFee(nFeeRequired, _("Sending..."), NULL))\r
- return "ABORTED";\r
-\r
- if (!CommitTransaction(wtxNew, key))\r
- return _("Error: The transaction was rejected. This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");\r
- }\r
- MainFrameRepaint();\r
- return "";\r
-}\r
-\r
-\r
-\r
-string SendMoneyToBitcoinAddress(string strAddress, int64 nValue, CWalletTx& wtxNew, bool fAskFee)\r
-{\r
- // Check amount\r
- if (nValue <= 0)\r
- return _("Invalid amount");\r
- if (nValue + nTransactionFee > GetBalance())\r
- return _("Insufficient funds");\r
-\r
- // Parse bitcoin address\r
- CScript scriptPubKey;\r
- if (!scriptPubKey.SetBitcoinAddress(strAddress))\r
- return _("Invalid bitcoin address");\r
-\r
- return SendMoney(scriptPubKey, nValue, wtxNew, fAskFee);\r
-}\r
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
+#include "headers.h"
+#include "cryptopp/sha.h"
+
+
+
+
+
+//
+// Global state
+//
+
+CCriticalSection cs_main;
+
+map<uint256, CTransaction> mapTransactions;
+CCriticalSection cs_mapTransactions;
+unsigned int nTransactionsUpdated = 0;
+map<COutPoint, CInPoint> mapNextTx;
+
+map<uint256, CBlockIndex*> mapBlockIndex;
+uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
+CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
+CBlockIndex* pindexGenesisBlock = NULL;
+int nBestHeight = -1;
+CBigNum bnBestChainWork = 0;
+CBigNum bnBestInvalidWork = 0;
+uint256 hashBestChain = 0;
+CBlockIndex* pindexBest = NULL;
+int64 nTimeBestReceived = 0;
+
+map<uint256, CBlock*> mapOrphanBlocks;
+multimap<uint256, CBlock*> mapOrphanBlocksByPrev;
+
+map<uint256, CDataStream*> mapOrphanTransactions;
+multimap<uint256, CDataStream*> mapOrphanTransactionsByPrev;
+
+map<uint256, CWalletTx> mapWallet;
+vector<uint256> vWalletUpdated;
+CCriticalSection cs_mapWallet;
+
+map<vector<unsigned char>, CPrivKey> mapKeys;
+map<uint160, vector<unsigned char> > mapPubKeys;
+CCriticalSection cs_mapKeys;
+CKey keyUser;
+
+map<uint256, int> mapRequestCount;
+CCriticalSection cs_mapRequestCount;
+
+map<string, string> mapAddressBook;
+CCriticalSection cs_mapAddressBook;
+
+vector<unsigned char> vchDefaultKey;
+
+double dHashesPerSec;
+int64 nHPSTimerStart;
+
+// Settings
+int fGenerateBitcoins = false;
+int64 nTransactionFee = 0;
+CAddress addrIncoming;
+int fLimitProcessors = false;
+int nLimitProcessors = 1;
+int fMinimizeToTray = true;
+int fMinimizeOnClose = true;
+#ifdef USE_UPNP
+#if USE_UPNP
+int fUseUPnP = true;
+#else
+int fUseUPnP = false;
+#endif
+#endif
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// mapKeys
+//
+
+bool AddKey(const CKey& key)
+{
+ CRITICAL_BLOCK(cs_mapKeys)
+ {
+ mapKeys[key.GetPubKey()] = key.GetPrivKey();
+ mapPubKeys[Hash160(key.GetPubKey())] = key.GetPubKey();
+ }
+ return CWalletDB().WriteKey(key.GetPubKey(), key.GetPrivKey());
+}
+
+vector<unsigned char> GenerateNewKey()
+{
+ RandAddSeedPerfmon();
+ CKey key;
+ key.MakeNewKey();
+ if (!AddKey(key))
+ throw runtime_error("GenerateNewKey() : AddKey failed");
+ return key.GetPubKey();
+}
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// mapWallet
+//
+
+bool AddToWallet(const CWalletTx& wtxIn)
+{
+ uint256 hash = wtxIn.GetHash();
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ // Inserts only if not already there, returns tx inserted or tx found
+ pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
+ CWalletTx& wtx = (*ret.first).second;
+ bool fInsertedNew = ret.second;
+ if (fInsertedNew)
+ wtx.nTimeReceived = GetAdjustedTime();
+
+ bool fUpdated = false;
+ if (!fInsertedNew)
+ {
+ // Merge
+ if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
+ {
+ wtx.hashBlock = wtxIn.hashBlock;
+ fUpdated = true;
+ }
+ if (wtxIn.nIndex != -1 && (wtxIn.vMerkleBranch != wtx.vMerkleBranch || wtxIn.nIndex != wtx.nIndex))
+ {
+ wtx.vMerkleBranch = wtxIn.vMerkleBranch;
+ wtx.nIndex = wtxIn.nIndex;
+ fUpdated = true;
+ }
+ if (wtxIn.fFromMe && wtxIn.fFromMe != wtx.fFromMe)
+ {
+ wtx.fFromMe = wtxIn.fFromMe;
+ fUpdated = true;
+ }
+ fUpdated |= wtx.UpdateSpent(wtxIn.vfSpent);
+ }
+
+ //// debug print
+ printf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString().substr(0,10).c_str(), (fInsertedNew ? "new" : ""), (fUpdated ? "update" : ""));
+
+ // Write to disk
+ if (fInsertedNew || fUpdated)
+ if (!wtx.WriteToDisk())
+ return false;
+
+ // If default receiving address gets used, replace it with a new one
+ CScript scriptDefaultKey;
+ scriptDefaultKey.SetBitcoinAddress(vchDefaultKey);
+ foreach(const CTxOut& txout, wtx.vout)
+ {
+ if (txout.scriptPubKey == scriptDefaultKey)
+ {
+ CWalletDB walletdb;
+ vchDefaultKey = GetKeyFromKeyPool();
+ walletdb.WriteDefaultKey(vchDefaultKey);
+ walletdb.WriteName(PubKeyToAddress(vchDefaultKey), "");
+ }
+ }
+
+ // Notify UI
+ vWalletUpdated.push_back(hash);
+ }
+
+ // Refresh UI
+ MainFrameRepaint();
+ return true;
+}
+
+bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate = false)
+{
+ uint256 hash = tx.GetHash();
+ bool fExisted = mapWallet.count(hash);
+ if (fExisted && !fUpdate) return false;
+ if (fExisted || tx.IsMine() || tx.IsFromMe())
+ {
+ CWalletTx wtx(tx);
+ // Get merkle branch if transaction was found in a block
+ if (pblock)
+ wtx.SetMerkleBranch(pblock);
+ return AddToWallet(wtx);
+ }
+ return false;
+}
+
+bool EraseFromWallet(uint256 hash)
+{
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ if (mapWallet.erase(hash))
+ CWalletDB().EraseTx(hash);
+ }
+ return true;
+}
+
+void WalletUpdateSpent(const COutPoint& prevout)
+{
+ // Anytime a signature is successfully verified, it's proof the outpoint is spent.
+ // Update the wallet spent flag if it doesn't know due to wallet.dat being
+ // restored from backup or the user making copies of wallet.dat.
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);
+ if (mi != mapWallet.end())
+ {
+ CWalletTx& wtx = (*mi).second;
+ if (!wtx.IsSpent(prevout.n) && wtx.vout[prevout.n].IsMine())
+ {
+ printf("WalletUpdateSpent found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
+ wtx.MarkSpent(prevout.n);
+ wtx.WriteToDisk();
+ vWalletUpdated.push_back(prevout.hash);
+ }
+ }
+ }
+}
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// mapOrphanTransactions
+//
+
+void AddOrphanTx(const CDataStream& vMsg)
+{
+ CTransaction tx;
+ CDataStream(vMsg) >> tx;
+ uint256 hash = tx.GetHash();
+ if (mapOrphanTransactions.count(hash))
+ return;
+ CDataStream* pvMsg = mapOrphanTransactions[hash] = new CDataStream(vMsg);
+ foreach(const CTxIn& txin, tx.vin)
+ mapOrphanTransactionsByPrev.insert(make_pair(txin.prevout.hash, pvMsg));
+}
+
+void EraseOrphanTx(uint256 hash)
+{
+ if (!mapOrphanTransactions.count(hash))
+ return;
+ const CDataStream* pvMsg = mapOrphanTransactions[hash];
+ CTransaction tx;
+ CDataStream(*pvMsg) >> tx;
+ foreach(const CTxIn& txin, tx.vin)
+ {
+ for (multimap<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev.lower_bound(txin.prevout.hash);
+ mi != mapOrphanTransactionsByPrev.upper_bound(txin.prevout.hash);)
+ {
+ if ((*mi).second == pvMsg)
+ mapOrphanTransactionsByPrev.erase(mi++);
+ else
+ mi++;
+ }
+ }
+ delete pvMsg;
+ mapOrphanTransactions.erase(hash);
+}
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CTransaction and CTxIndex
+//
+
+bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet)
+{
+ SetNull();
+ if (!txdb.ReadTxIndex(prevout.hash, txindexRet))
+ return false;
+ if (!ReadFromDisk(txindexRet.pos))
+ return false;
+ if (prevout.n >= vout.size())
+ {
+ SetNull();
+ return false;
+ }
+ return true;
+}
+
+bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout)
+{
+ CTxIndex txindex;
+ return ReadFromDisk(txdb, prevout, txindex);
+}
+
+bool CTransaction::ReadFromDisk(COutPoint prevout)
+{
+ CTxDB txdb("r");
+ CTxIndex txindex;
+ return ReadFromDisk(txdb, prevout, txindex);
+}
+
+bool CTxIn::IsMine() const
+{
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);
+ if (mi != mapWallet.end())
+ {
+ const CWalletTx& prev = (*mi).second;
+ if (prevout.n < prev.vout.size())
+ if (prev.vout[prevout.n].IsMine())
+ return true;
+ }
+ }
+ return false;
+}
+
+int64 CTxIn::GetDebit() const
+{
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ map<uint256, CWalletTx>::iterator mi = mapWallet.find(prevout.hash);
+ if (mi != mapWallet.end())
+ {
+ const CWalletTx& prev = (*mi).second;
+ if (prevout.n < prev.vout.size())
+ if (prev.vout[prevout.n].IsMine())
+ return prev.vout[prevout.n].nValue;
+ }
+ }
+ return 0;
+}
+
+int64 CWalletTx::GetTxTime() const
+{
+ if (!fTimeReceivedIsTxTime && hashBlock != 0)
+ {
+ // If we did not receive the transaction directly, we rely on the block's
+ // time to figure out when it happened. We use the median over a range
+ // of blocks to try to filter out inaccurate block times.
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
+ if (mi != mapBlockIndex.end())
+ {
+ CBlockIndex* pindex = (*mi).second;
+ if (pindex)
+ return pindex->GetMedianTime();
+ }
+ }
+ return nTimeReceived;
+}
+
+int CWalletTx::GetRequestCount() const
+{
+ // Returns -1 if it wasn't being tracked
+ int nRequests = -1;
+ CRITICAL_BLOCK(cs_mapRequestCount)
+ {
+ if (IsCoinBase())
+ {
+ // Generated block
+ if (hashBlock != 0)
+ {
+ map<uint256, int>::iterator mi = mapRequestCount.find(hashBlock);
+ if (mi != mapRequestCount.end())
+ nRequests = (*mi).second;
+ }
+ }
+ else
+ {
+ // Did anyone request this transaction?
+ map<uint256, int>::iterator mi = mapRequestCount.find(GetHash());
+ if (mi != mapRequestCount.end())
+ {
+ nRequests = (*mi).second;
+
+ // How about the block it's in?
+ if (nRequests == 0 && hashBlock != 0)
+ {
+ map<uint256, int>::iterator mi = mapRequestCount.find(hashBlock);
+ if (mi != mapRequestCount.end())
+ nRequests = (*mi).second;
+ else
+ nRequests = 1; // If it's in someone else's block it must have got out
+ }
+ }
+ }
+ }
+ return nRequests;
+}
+
+void CWalletTx::GetAmounts(int64& nGeneratedImmature, int64& nGeneratedMature, list<pair<string, int64> >& listReceived,
+ list<pair<string, int64> >& listSent, int64& nFee, string& strSentAccount) const
+{
+ nGeneratedImmature = nGeneratedMature = nFee = 0;
+ listReceived.clear();
+ listSent.clear();
+ strSentAccount = strFromAccount;
+
+ if (IsCoinBase())
+ {
+ if (GetBlocksToMaturity() > 0)
+ nGeneratedImmature = CTransaction::GetCredit();
+ else
+ nGeneratedMature = GetCredit();
+ return;
+ }
+
+ // Compute fee:
+ int64 nDebit = GetDebit();
+ if (nDebit > 0) // debit>0 means we signed/sent this transaction
+ {
+ int64 nValueOut = GetValueOut();
+ nFee = nDebit - nValueOut;
+ }
+
+ // Sent/received. Standard client will never generate a send-to-multiple-recipients,
+ // but non-standard clients might (so return a list of address/amount pairs)
+ foreach(const CTxOut& txout, vout)
+ {
+ string address;
+ uint160 hash160;
+ vector<unsigned char> vchPubKey;
+ if (ExtractHash160(txout.scriptPubKey, hash160))
+ address = Hash160ToAddress(hash160);
+ else if (ExtractPubKey(txout.scriptPubKey, false, vchPubKey))
+ address = PubKeyToAddress(vchPubKey);
+ else
+ {
+ printf("CWalletTx::GetAmounts: Unknown transaction type found, txid %s\n",
+ this->GetHash().ToString().c_str());
+ address = " unknown ";
+ }
+
+ // Don't report 'change' txouts
+ if (nDebit > 0 && txout.IsChange())
+ continue;
+
+ if (nDebit > 0)
+ listSent.push_back(make_pair(address, txout.nValue));
+
+ if (txout.IsMine())
+ listReceived.push_back(make_pair(address, txout.nValue));
+ }
+
+}
+
+void CWalletTx::GetAccountAmounts(const string& strAccount, int64& nGenerated, int64& nReceived,
+ int64& nSent, int64& nFee) const
+{
+ nGenerated = nReceived = nSent = nFee = 0;
+
+ int64 allGeneratedImmature, allGeneratedMature, allFee;
+ allGeneratedImmature = allGeneratedMature = allFee = 0;
+ string strSentAccount;
+ list<pair<string, int64> > listReceived;
+ list<pair<string, int64> > listSent;
+ GetAmounts(allGeneratedImmature, allGeneratedMature, listReceived, listSent, allFee, strSentAccount);
+
+ if (strAccount == "")
+ nGenerated = allGeneratedMature;
+ if (strAccount == strSentAccount)
+ {
+ foreach(const PAIRTYPE(string,int64)& s, listSent)
+ nSent += s.second;
+ nFee = allFee;
+ }
+ CRITICAL_BLOCK(cs_mapAddressBook)
+ {
+ foreach(const PAIRTYPE(string,int64)& r, listReceived)
+ {
+ if (mapAddressBook.count(r.first))
+ {
+ if (mapAddressBook[r.first] == strAccount)
+ {
+ nReceived += r.second;
+ }
+ }
+ else if (strAccount.empty())
+ {
+ nReceived += r.second;
+ }
+ }
+ }
+}
+
+
+
+int CMerkleTx::SetMerkleBranch(const CBlock* pblock)
+{
+ if (fClient)
+ {
+ if (hashBlock == 0)
+ return 0;
+ }
+ else
+ {
+ CBlock blockTmp;
+ if (pblock == NULL)
+ {
+ // Load the block this tx is in
+ CTxIndex txindex;
+ if (!CTxDB("r").ReadTxIndex(GetHash(), txindex))
+ return 0;
+ if (!blockTmp.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos))
+ return 0;
+ pblock = &blockTmp;
+ }
+
+ // Update the tx's hashBlock
+ hashBlock = pblock->GetHash();
+
+ // Locate the transaction
+ for (nIndex = 0; nIndex < pblock->vtx.size(); nIndex++)
+ if (pblock->vtx[nIndex] == *(CTransaction*)this)
+ break;
+ if (nIndex == pblock->vtx.size())
+ {
+ vMerkleBranch.clear();
+ nIndex = -1;
+ printf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");
+ return 0;
+ }
+
+ // Fill in merkle branch
+ vMerkleBranch = pblock->GetMerkleBranch(nIndex);
+ }
+
+ // Is the tx in a block that's in the main chain
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
+ if (mi == mapBlockIndex.end())
+ return 0;
+ CBlockIndex* pindex = (*mi).second;
+ if (!pindex || !pindex->IsInMainChain())
+ return 0;
+
+ return pindexBest->nHeight - pindex->nHeight + 1;
+}
+
+
+
+void CWalletTx::AddSupportingTransactions(CTxDB& txdb)
+{
+ vtxPrev.clear();
+
+ const int COPY_DEPTH = 3;
+ if (SetMerkleBranch() < COPY_DEPTH)
+ {
+ vector<uint256> vWorkQueue;
+ foreach(const CTxIn& txin, vin)
+ vWorkQueue.push_back(txin.prevout.hash);
+
+ // This critsect is OK because txdb is already open
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ map<uint256, const CMerkleTx*> mapWalletPrev;
+ set<uint256> setAlreadyDone;
+ for (int i = 0; i < vWorkQueue.size(); i++)
+ {
+ uint256 hash = vWorkQueue[i];
+ if (setAlreadyDone.count(hash))
+ continue;
+ setAlreadyDone.insert(hash);
+
+ CMerkleTx tx;
+ if (mapWallet.count(hash))
+ {
+ tx = mapWallet[hash];
+ foreach(const CMerkleTx& txWalletPrev, mapWallet[hash].vtxPrev)
+ mapWalletPrev[txWalletPrev.GetHash()] = &txWalletPrev;
+ }
+ else if (mapWalletPrev.count(hash))
+ {
+ tx = *mapWalletPrev[hash];
+ }
+ else if (!fClient && txdb.ReadDiskTx(hash, tx))
+ {
+ ;
+ }
+ else
+ {
+ printf("ERROR: AddSupportingTransactions() : unsupported transaction\n");
+ continue;
+ }
+
+ int nDepth = tx.SetMerkleBranch();
+ vtxPrev.push_back(tx);
+
+ if (nDepth < COPY_DEPTH)
+ foreach(const CTxIn& txin, tx.vin)
+ vWorkQueue.push_back(txin.prevout.hash);
+ }
+ }
+ }
+
+ reverse(vtxPrev.begin(), vtxPrev.end());
+}
+
+
+
+
+
+
+
+
+
+
+
+bool CTransaction::CheckTransaction() const
+{
+ // Basic checks that don't depend on any context
+ if (vin.empty() || vout.empty())
+ return error("CTransaction::CheckTransaction() : vin or vout empty");
+
+ // Size limits
+ if (::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
+ return error("CTransaction::CheckTransaction() : size limits failed");
+
+ // Check for negative or overflow output values
+ int64 nValueOut = 0;
+ foreach(const CTxOut& txout, vout)
+ {
+ if (txout.nValue < 0)
+ return error("CTransaction::CheckTransaction() : txout.nValue negative");
+ if (txout.nValue > MAX_MONEY)
+ return error("CTransaction::CheckTransaction() : txout.nValue too high");
+ nValueOut += txout.nValue;
+ if (!MoneyRange(nValueOut))
+ return error("CTransaction::CheckTransaction() : txout total out of range");
+ }
+
+ if (IsCoinBase())
+ {
+ if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)
+ return error("CTransaction::CheckTransaction() : coinbase script size");
+ }
+ else
+ {
+ foreach(const CTxIn& txin, vin)
+ if (txin.prevout.IsNull())
+ return error("CTransaction::CheckTransaction() : prevout is null");
+ }
+
+ return true;
+}
+
+bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)
+{
+ if (pfMissingInputs)
+ *pfMissingInputs = false;
+
+ if (!CheckTransaction())
+ return error("AcceptToMemoryPool() : CheckTransaction failed");
+
+ // Coinbase is only valid in a block, not as a loose transaction
+ if (IsCoinBase())
+ return error("AcceptToMemoryPool() : coinbase as individual tx");
+
+ // To help v0.1.5 clients who would see it as a negative number
+ if ((int64)nLockTime > INT_MAX)
+ return error("AcceptToMemoryPool() : not accepting nLockTime beyond 2038 yet");
+
+ // Safety limits
+ unsigned int nSize = ::GetSerializeSize(*this, SER_NETWORK);
+ // Checking ECDSA signatures is a CPU bottleneck, so to avoid denial-of-service
+ // attacks disallow transactions with more than one SigOp per 34 bytes.
+ // 34 bytes because a TxOut is:
+ // 20-byte address + 8 byte bitcoin amount + 5 bytes of ops + 1 byte script length
+ if (GetSigOpCount() > nSize / 34 || nSize < 100)
+ return error("AcceptToMemoryPool() : nonstandard transaction");
+
+ // Rather not work on nonstandard transactions
+ if (!IsStandard())
+ return error("AcceptToMemoryPool() : nonstandard transaction type");
+
+ // Do we already have it?
+ uint256 hash = GetHash();
+ CRITICAL_BLOCK(cs_mapTransactions)
+ if (mapTransactions.count(hash))
+ return false;
+ if (fCheckInputs)
+ if (txdb.ContainsTx(hash))
+ return false;
+
+ // Check for conflicts with in-memory transactions
+ CTransaction* ptxOld = NULL;
+ for (int i = 0; i < vin.size(); i++)
+ {
+ COutPoint outpoint = vin[i].prevout;
+ if (mapNextTx.count(outpoint))
+ {
+ // Disable replacement feature for now
+ return false;
+
+ // Allow replacing with a newer version of the same transaction
+ if (i != 0)
+ return false;
+ ptxOld = mapNextTx[outpoint].ptx;
+ if (ptxOld->IsFinal())
+ return false;
+ if (!IsNewerThan(*ptxOld))
+ return false;
+ for (int i = 0; i < vin.size(); i++)
+ {
+ COutPoint outpoint = vin[i].prevout;
+ if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)
+ return false;
+ }
+ break;
+ }
+ }
+
+ if (fCheckInputs)
+ {
+ // Check against previous transactions
+ map<uint256, CTxIndex> mapUnused;
+ int64 nFees = 0;
+ if (!ConnectInputs(txdb, mapUnused, CDiskTxPos(1,1,1), pindexBest, nFees, false, false))
+ {
+ if (pfMissingInputs)
+ *pfMissingInputs = true;
+ return error("AcceptToMemoryPool() : ConnectInputs failed %s", hash.ToString().substr(0,10).c_str());
+ }
+
+ // Don't accept it if it can't get into a block
+ if (nFees < GetMinFee(1000))
+ return error("AcceptToMemoryPool() : not enough fees");
+
+ // Continuously rate-limit free transactions
+ // This mitigates 'penny-flooding' -- sending thousands of free transactions just to
+ // be annoying or make other's transactions take longer to confirm.
+ if (nFees < CENT)
+ {
+ static CCriticalSection cs;
+ static double dFreeCount;
+ static int64 nLastTime;
+ int64 nNow = GetTime();
+
+ CRITICAL_BLOCK(cs)
+ {
+ // Use an exponentially decaying ~10-minute window:
+ dFreeCount *= pow(1.0 - 1.0/600.0, (double)(nNow - nLastTime));
+ nLastTime = nNow;
+ // -limitfreerelay unit is thousand-bytes-per-minute
+ // At default rate it would take over a month to fill 1GB
+ if (dFreeCount > GetArg("-limitfreerelay", 15)*10*1000 && !IsFromMe())
+ return error("AcceptToMemoryPool() : free transaction rejected by rate limiter");
+ if (fDebug)
+ printf("Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
+ dFreeCount += nSize;
+ }
+ }
+ }
+
+ // Store transaction in memory
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ if (ptxOld)
+ {
+ printf("AcceptToMemoryPool() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
+ ptxOld->RemoveFromMemoryPool();
+ }
+ AddToMemoryPoolUnchecked();
+ }
+
+ ///// are we sure this is ok when loading transactions or restoring block txes
+ // If updated, erase old tx from wallet
+ if (ptxOld)
+ EraseFromWallet(ptxOld->GetHash());
+
+ printf("AcceptToMemoryPool(): accepted %s\n", hash.ToString().substr(0,10).c_str());
+ return true;
+}
+
+
+bool CTransaction::AddToMemoryPoolUnchecked()
+{
+ // Add to memory pool without checking anything. Don't call this directly,
+ // call AcceptToMemoryPool to properly check the transaction first.
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ uint256 hash = GetHash();
+ mapTransactions[hash] = *this;
+ for (int i = 0; i < vin.size(); i++)
+ mapNextTx[vin[i].prevout] = CInPoint(&mapTransactions[hash], i);
+ nTransactionsUpdated++;
+ }
+ return true;
+}
+
+
+bool CTransaction::RemoveFromMemoryPool()
+{
+ // Remove transaction from memory pool
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ foreach(const CTxIn& txin, vin)
+ mapNextTx.erase(txin.prevout);
+ mapTransactions.erase(GetHash());
+ nTransactionsUpdated++;
+ }
+ return true;
+}
+
+
+
+
+
+
+int CMerkleTx::GetDepthInMainChain(int& nHeightRet) const
+{
+ if (hashBlock == 0 || nIndex == -1)
+ return 0;
+
+ // Find the block it claims to be in
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
+ if (mi == mapBlockIndex.end())
+ return 0;
+ CBlockIndex* pindex = (*mi).second;
+ if (!pindex || !pindex->IsInMainChain())
+ return 0;
+
+ // Make sure the merkle branch connects to this block
+ if (!fMerkleVerified)
+ {
+ if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot)
+ return 0;
+ fMerkleVerified = true;
+ }
+
+ nHeightRet = pindex->nHeight;
+ return pindexBest->nHeight - pindex->nHeight + 1;
+}
+
+
+int CMerkleTx::GetBlocksToMaturity() const
+{
+ if (!IsCoinBase())
+ return 0;
+ return max(0, (COINBASE_MATURITY+20) - GetDepthInMainChain());
+}
+
+
+bool CMerkleTx::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs)
+{
+ if (fClient)
+ {
+ if (!IsInMainChain() && !ClientConnectInputs())
+ return false;
+ return CTransaction::AcceptToMemoryPool(txdb, false);
+ }
+ else
+ {
+ return CTransaction::AcceptToMemoryPool(txdb, fCheckInputs);
+ }
+}
+
+
+
+bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)
+{
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ // Add previous supporting transactions first
+ foreach(CMerkleTx& tx, vtxPrev)
+ {
+ if (!tx.IsCoinBase())
+ {
+ uint256 hash = tx.GetHash();
+ if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))
+ tx.AcceptToMemoryPool(txdb, fCheckInputs);
+ }
+ }
+ return AcceptToMemoryPool(txdb, fCheckInputs);
+ }
+ return false;
+}
+
+int ScanForWalletTransactions(CBlockIndex* pindexStart)
+{
+ int ret = 0;
+
+ CBlockIndex* pindex = pindexStart;
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ while (pindex)
+ {
+ CBlock block;
+ block.ReadFromDisk(pindex, true);
+ foreach(CTransaction& tx, block.vtx)
+ {
+ if (AddToWalletIfInvolvingMe(tx, &block))
+ ret++;
+ }
+ pindex = pindex->pnext;
+ }
+ }
+ return ret;
+}
+
+void ReacceptWalletTransactions()
+{
+ CTxDB txdb("r");
+ bool fRepeat = true;
+ while (fRepeat) CRITICAL_BLOCK(cs_mapWallet)
+ {
+ fRepeat = false;
+ vector<CDiskTxPos> vMissingTx;
+ foreach(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
+ {
+ CWalletTx& wtx = item.second;
+ if (wtx.IsCoinBase() && wtx.IsSpent(0))
+ continue;
+
+ CTxIndex txindex;
+ bool fUpdated = false;
+ if (txdb.ReadTxIndex(wtx.GetHash(), txindex))
+ {
+ // Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
+ if (txindex.vSpent.size() != wtx.vout.size())
+ {
+ printf("ERROR: ReacceptWalletTransactions() : txindex.vSpent.size() %d != wtx.vout.size() %d\n", txindex.vSpent.size(), wtx.vout.size());
+ continue;
+ }
+ for (int i = 0; i < txindex.vSpent.size(); i++)
+ {
+ if (wtx.IsSpent(i))
+ continue;
+ if (!txindex.vSpent[i].IsNull() && wtx.vout[i].IsMine())
+ {
+ wtx.MarkSpent(i);
+ fUpdated = true;
+ vMissingTx.push_back(txindex.vSpent[i]);
+ }
+ }
+ if (fUpdated)
+ {
+ printf("ReacceptWalletTransactions found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
+ wtx.MarkDirty();
+ wtx.WriteToDisk();
+ }
+ }
+ else
+ {
+ // Reaccept any txes of ours that aren't already in a block
+ if (!wtx.IsCoinBase())
+ wtx.AcceptWalletTransaction(txdb, false);
+ }
+ }
+ if (!vMissingTx.empty())
+ {
+ // TODO: optimize this to scan just part of the block chain?
+ if (ScanForWalletTransactions(pindexGenesisBlock))
+ fRepeat = true; // Found missing transactions: re-do Reaccept.
+ }
+ }
+}
+
+
+void CWalletTx::RelayWalletTransaction(CTxDB& txdb)
+{
+ foreach(const CMerkleTx& tx, vtxPrev)
+ {
+ if (!tx.IsCoinBase())
+ {
+ uint256 hash = tx.GetHash();
+ if (!txdb.ContainsTx(hash))
+ RelayMessage(CInv(MSG_TX, hash), (CTransaction)tx);
+ }
+ }
+ if (!IsCoinBase())
+ {
+ uint256 hash = GetHash();
+ if (!txdb.ContainsTx(hash))
+ {
+ printf("Relaying wtx %s\n", hash.ToString().substr(0,10).c_str());
+ RelayMessage(CInv(MSG_TX, hash), (CTransaction)*this);
+ }
+ }
+}
+
+void ResendWalletTransactions()
+{
+ // Do this infrequently and randomly to avoid giving away
+ // that these are our transactions.
+ static int64 nNextTime;
+ if (GetTime() < nNextTime)
+ return;
+ bool fFirst = (nNextTime == 0);
+ nNextTime = GetTime() + GetRand(30 * 60);
+ if (fFirst)
+ return;
+
+ // Only do it if there's been a new block since last time
+ static int64 nLastTime;
+ if (nTimeBestReceived < nLastTime)
+ return;
+ nLastTime = GetTime();
+
+ // Rebroadcast any of our txes that aren't in a block yet
+ printf("ResendWalletTransactions()\n");
+ CTxDB txdb("r");
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ // Sort them in chronological order
+ multimap<unsigned int, CWalletTx*> mapSorted;
+ foreach(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
+ {
+ CWalletTx& wtx = item.second;
+ // Don't rebroadcast until it's had plenty of time that
+ // it should have gotten in already by now.
+ if (nTimeBestReceived - (int64)wtx.nTimeReceived > 5 * 60)
+ mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
+ }
+ foreach(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
+ {
+ CWalletTx& wtx = *item.second;
+ wtx.RelayWalletTransaction(txdb);
+ }
+ }
+}
+
+int CTxIndex::GetDepthInMainChain() const
+{
+ // Read block header
+ CBlock block;
+ if (!block.ReadFromDisk(pos.nFile, pos.nBlockPos, false))
+ return 0;
+ // Find the block in the index
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(block.GetHash());
+ if (mi == mapBlockIndex.end())
+ return 0;
+ CBlockIndex* pindex = (*mi).second;
+ if (!pindex || !pindex->IsInMainChain())
+ return 0;
+ return 1 + nBestHeight - pindex->nHeight;
+}
+
+
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CBlock and CBlockIndex
+//
+
+bool CBlock::ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions)
+{
+ if (!fReadTransactions)
+ {
+ *this = pindex->GetBlockHeader();
+ return true;
+ }
+ if (!ReadFromDisk(pindex->nFile, pindex->nBlockPos, fReadTransactions))
+ return false;
+ if (GetHash() != pindex->GetBlockHash())
+ return error("CBlock::ReadFromDisk() : GetHash() doesn't match index");
+ return true;
+}
+
+uint256 GetOrphanRoot(const CBlock* pblock)
+{
+ // Work back to the first block in the orphan chain
+ while (mapOrphanBlocks.count(pblock->hashPrevBlock))
+ pblock = mapOrphanBlocks[pblock->hashPrevBlock];
+ return pblock->GetHash();
+}
+
+int64 GetBlockValue(int nHeight, int64 nFees)
+{
+ int64 nSubsidy = 50 * COIN;
+
+ // Subsidy is cut in half every 4 years
+ nSubsidy >>= (nHeight / 210000);
+
+ return nSubsidy + nFees;
+}
+
+unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast)
+{
+ const int64 nTargetTimespan = 14 * 24 * 60 * 60; // two weeks
+ const int64 nTargetSpacing = 10 * 60;
+ const int64 nInterval = nTargetTimespan / nTargetSpacing;
+
+ // Genesis block
+ if (pindexLast == NULL)
+ return bnProofOfWorkLimit.GetCompact();
+
+ // Only change once per interval
+ if ((pindexLast->nHeight+1) % nInterval != 0)
+ return pindexLast->nBits;
+
+ // Go back by what we want to be 14 days worth of blocks
+ const CBlockIndex* pindexFirst = pindexLast;
+ for (int i = 0; pindexFirst && i < nInterval-1; i++)
+ pindexFirst = pindexFirst->pprev;
+ assert(pindexFirst);
+
+ // Limit adjustment step
+ int64 nActualTimespan = pindexLast->GetBlockTime() - pindexFirst->GetBlockTime();
+ printf(" nActualTimespan = %"PRI64d" before bounds\n", nActualTimespan);
+ if (nActualTimespan < nTargetTimespan/4)
+ nActualTimespan = nTargetTimespan/4;
+ if (nActualTimespan > nTargetTimespan*4)
+ nActualTimespan = nTargetTimespan*4;
+
+ // Retarget
+ CBigNum bnNew;
+ bnNew.SetCompact(pindexLast->nBits);
+ bnNew *= nActualTimespan;
+ bnNew /= nTargetTimespan;
+
+ if (bnNew > bnProofOfWorkLimit)
+ bnNew = bnProofOfWorkLimit;
+
+ /// debug print
+ printf("GetNextWorkRequired RETARGET\n");
+ printf("nTargetTimespan = %"PRI64d" nActualTimespan = %"PRI64d"\n", nTargetTimespan, nActualTimespan);
+ printf("Before: %08x %s\n", pindexLast->nBits, CBigNum().SetCompact(pindexLast->nBits).getuint256().ToString().c_str());
+ printf("After: %08x %s\n", bnNew.GetCompact(), bnNew.getuint256().ToString().c_str());
+
+ return bnNew.GetCompact();
+}
+
+bool CheckProofOfWork(uint256 hash, unsigned int nBits)
+{
+ CBigNum bnTarget;
+ bnTarget.SetCompact(nBits);
+
+ // Check range
+ if (bnTarget <= 0 || bnTarget > bnProofOfWorkLimit)
+ return error("CheckProofOfWork() : nBits below minimum work");
+
+ // Check proof of work matches claimed amount
+ if (hash > bnTarget.getuint256())
+ return error("CheckProofOfWork() : hash doesn't match nBits");
+
+ return true;
+}
+
+bool IsInitialBlockDownload()
+{
+ if (pindexBest == NULL || (!fTestNet && nBestHeight < 118000))
+ return true;
+ static int64 nLastUpdate;
+ static CBlockIndex* pindexLastBest;
+ if (pindexBest != pindexLastBest)
+ {
+ pindexLastBest = pindexBest;
+ nLastUpdate = GetTime();
+ }
+ return (GetTime() - nLastUpdate < 10 &&
+ pindexBest->GetBlockTime() < GetTime() - 24 * 60 * 60);
+}
+
+void InvalidChainFound(CBlockIndex* pindexNew)
+{
+ if (pindexNew->bnChainWork > bnBestInvalidWork)
+ {
+ bnBestInvalidWork = pindexNew->bnChainWork;
+ CTxDB().WriteBestInvalidWork(bnBestInvalidWork);
+ MainFrameRepaint();
+ }
+ printf("InvalidChainFound: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().substr(0,20).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());
+ printf("InvalidChainFound: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
+ if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
+ printf("InvalidChainFound: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n");
+}
+
+
+
+
+
+
+
+
+
+
+
+bool CTransaction::DisconnectInputs(CTxDB& txdb)
+{
+ // Relinquish previous transactions' spent pointers
+ if (!IsCoinBase())
+ {
+ foreach(const CTxIn& txin, vin)
+ {
+ COutPoint prevout = txin.prevout;
+
+ // Get prev txindex from disk
+ CTxIndex txindex;
+ if (!txdb.ReadTxIndex(prevout.hash, txindex))
+ return error("DisconnectInputs() : ReadTxIndex failed");
+
+ if (prevout.n >= txindex.vSpent.size())
+ return error("DisconnectInputs() : prevout.n out of range");
+
+ // Mark outpoint as not spent
+ txindex.vSpent[prevout.n].SetNull();
+
+ // Write back
+ if (!txdb.UpdateTxIndex(prevout.hash, txindex))
+ return error("DisconnectInputs() : UpdateTxIndex failed");
+ }
+ }
+
+ // Remove transaction from index
+ if (!txdb.EraseTxIndex(*this))
+ return error("DisconnectInputs() : EraseTxPos failed");
+
+ return true;
+}
+
+
+bool CTransaction::ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
+ CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee)
+{
+ // Take over previous transactions' spent pointers
+ if (!IsCoinBase())
+ {
+ int64 nValueIn = 0;
+ for (int i = 0; i < vin.size(); i++)
+ {
+ COutPoint prevout = vin[i].prevout;
+
+ // Read txindex
+ CTxIndex txindex;
+ bool fFound = true;
+ if (fMiner && mapTestPool.count(prevout.hash))
+ {
+ // Get txindex from current proposed changes
+ txindex = mapTestPool[prevout.hash];
+ }
+ else
+ {
+ // Read txindex from txdb
+ fFound = txdb.ReadTxIndex(prevout.hash, txindex);
+ }
+ if (!fFound && (fBlock || fMiner))
+ return fMiner ? false : error("ConnectInputs() : %s prev tx %s index entry not found", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
+
+ // Read txPrev
+ CTransaction txPrev;
+ if (!fFound || txindex.pos == CDiskTxPos(1,1,1))
+ {
+ // Get prev tx from single transactions in memory
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ if (!mapTransactions.count(prevout.hash))
+ return error("ConnectInputs() : %s mapTransactions prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
+ txPrev = mapTransactions[prevout.hash];
+ }
+ if (!fFound)
+ txindex.vSpent.resize(txPrev.vout.size());
+ }
+ else
+ {
+ // Get prev tx from disk
+ if (!txPrev.ReadFromDisk(txindex.pos))
+ return error("ConnectInputs() : %s ReadFromDisk prev tx %s failed", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
+ }
+
+ if (prevout.n >= txPrev.vout.size() || prevout.n >= txindex.vSpent.size())
+ return error("ConnectInputs() : %s prevout.n out of range %d %d %d prev tx %s\n%s", GetHash().ToString().substr(0,10).c_str(), prevout.n, txPrev.vout.size(), txindex.vSpent.size(), prevout.hash.ToString().substr(0,10).c_str(), txPrev.ToString().c_str());
+
+ // If prev is coinbase, check that it's matured
+ if (txPrev.IsCoinBase())
+ for (CBlockIndex* pindex = pindexBlock; pindex && pindexBlock->nHeight - pindex->nHeight < COINBASE_MATURITY; pindex = pindex->pprev)
+ if (pindex->nBlockPos == txindex.pos.nBlockPos && pindex->nFile == txindex.pos.nFile)
+ return error("ConnectInputs() : tried to spend coinbase at depth %d", pindexBlock->nHeight - pindex->nHeight);
+
+ // Verify signature
+ if (!VerifySignature(txPrev, *this, i))
+ return error("ConnectInputs() : %s VerifySignature failed", GetHash().ToString().substr(0,10).c_str());
+
+ // Check for conflicts
+ if (!txindex.vSpent[prevout.n].IsNull())
+ return fMiner ? false : error("ConnectInputs() : %s prev tx already used at %s", GetHash().ToString().substr(0,10).c_str(), txindex.vSpent[prevout.n].ToString().c_str());
+
+ // Check for negative or overflow input values
+ nValueIn += txPrev.vout[prevout.n].nValue;
+ if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
+ return error("ConnectInputs() : txin values out of range");
+
+ // Mark outpoints as spent
+ txindex.vSpent[prevout.n] = posThisTx;
+
+ // Write back
+ if (fBlock)
+ {
+ if (!txdb.UpdateTxIndex(prevout.hash, txindex))
+ return error("ConnectInputs() : UpdateTxIndex failed");
+ }
+ else if (fMiner)
+ {
+ mapTestPool[prevout.hash] = txindex;
+ }
+ }
+
+ if (nValueIn < GetValueOut())
+ return error("ConnectInputs() : %s value in < value out", GetHash().ToString().substr(0,10).c_str());
+
+ // Tally transaction fees
+ int64 nTxFee = nValueIn - GetValueOut();
+ if (nTxFee < 0)
+ return error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().substr(0,10).c_str());
+ if (nTxFee < nMinFee)
+ return false;
+ nFees += nTxFee;
+ if (!MoneyRange(nFees))
+ return error("ConnectInputs() : nFees out of range");
+ }
+
+ if (fBlock)
+ {
+ // Add transaction to disk index
+ if (!txdb.AddTxIndex(*this, posThisTx, pindexBlock->nHeight))
+ return error("ConnectInputs() : AddTxPos failed");
+ }
+ else if (fMiner)
+ {
+ // Add transaction to test pool
+ mapTestPool[GetHash()] = CTxIndex(CDiskTxPos(1,1,1), vout.size());
+ }
+
+ return true;
+}
+
+
+bool CTransaction::ClientConnectInputs()
+{
+ if (IsCoinBase())
+ return false;
+
+ // Take over previous transactions' spent pointers
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ int64 nValueIn = 0;
+ for (int i = 0; i < vin.size(); i++)
+ {
+ // Get prev tx from single transactions in memory
+ COutPoint prevout = vin[i].prevout;
+ if (!mapTransactions.count(prevout.hash))
+ return false;
+ CTransaction& txPrev = mapTransactions[prevout.hash];
+
+ if (prevout.n >= txPrev.vout.size())
+ return false;
+
+ // Verify signature
+ if (!VerifySignature(txPrev, *this, i))
+ return error("ConnectInputs() : VerifySignature failed");
+
+ ///// this is redundant with the mapNextTx stuff, not sure which I want to get rid of
+ ///// this has to go away now that posNext is gone
+ // // Check for conflicts
+ // if (!txPrev.vout[prevout.n].posNext.IsNull())
+ // return error("ConnectInputs() : prev tx already used");
+ //
+ // // Flag outpoints as used
+ // txPrev.vout[prevout.n].posNext = posThisTx;
+
+ nValueIn += txPrev.vout[prevout.n].nValue;
+
+ if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
+ return error("ClientConnectInputs() : txin values out of range");
+ }
+ if (GetValueOut() > nValueIn)
+ return false;
+ }
+
+ return true;
+}
+
+
+
+
+bool CBlock::DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex)
+{
+ // Disconnect in reverse order
+ for (int i = vtx.size()-1; i >= 0; i--)
+ if (!vtx[i].DisconnectInputs(txdb))
+ return false;
+
+ // Update block index on disk without changing it in memory.
+ // The memory index structure will be changed after the db commits.
+ if (pindex->pprev)
+ {
+ CDiskBlockIndex blockindexPrev(pindex->pprev);
+ blockindexPrev.hashNext = 0;
+ if (!txdb.WriteBlockIndex(blockindexPrev))
+ return error("DisconnectBlock() : WriteBlockIndex failed");
+ }
+
+ return true;
+}
+
+bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex)
+{
+ // Check it again in case a previous version let a bad block in
+ if (!CheckBlock())
+ return false;
+
+ //// issue here: it doesn't know the version
+ unsigned int nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK) - 1 + GetSizeOfCompactSize(vtx.size());
+
+ map<uint256, CTxIndex> mapUnused;
+ int64 nFees = 0;
+ foreach(CTransaction& tx, vtx)
+ {
+ CDiskTxPos posThisTx(pindex->nFile, pindex->nBlockPos, nTxPos);
+ nTxPos += ::GetSerializeSize(tx, SER_DISK);
+
+ if (!tx.ConnectInputs(txdb, mapUnused, posThisTx, pindex, nFees, true, false))
+ return false;
+ }
+
+ if (vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees))
+ return false;
+
+ // Update block index on disk without changing it in memory.
+ // The memory index structure will be changed after the db commits.
+ if (pindex->pprev)
+ {
+ CDiskBlockIndex blockindexPrev(pindex->pprev);
+ blockindexPrev.hashNext = pindex->GetBlockHash();
+ if (!txdb.WriteBlockIndex(blockindexPrev))
+ return error("ConnectBlock() : WriteBlockIndex failed");
+ }
+
+ // Watch for transactions paying to me
+ foreach(CTransaction& tx, vtx)
+ AddToWalletIfInvolvingMe(tx, this, true);
+
+ return true;
+}
+
+bool Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
+{
+ printf("REORGANIZE\n");
+
+ // Find the fork
+ CBlockIndex* pfork = pindexBest;
+ CBlockIndex* plonger = pindexNew;
+ while (pfork != plonger)
+ {
+ while (plonger->nHeight > pfork->nHeight)
+ if (!(plonger = plonger->pprev))
+ return error("Reorganize() : plonger->pprev is null");
+ if (pfork == plonger)
+ break;
+ if (!(pfork = pfork->pprev))
+ return error("Reorganize() : pfork->pprev is null");
+ }
+
+ // List of what to disconnect
+ vector<CBlockIndex*> vDisconnect;
+ for (CBlockIndex* pindex = pindexBest; pindex != pfork; pindex = pindex->pprev)
+ vDisconnect.push_back(pindex);
+
+ // List of what to connect
+ vector<CBlockIndex*> vConnect;
+ for (CBlockIndex* pindex = pindexNew; pindex != pfork; pindex = pindex->pprev)
+ vConnect.push_back(pindex);
+ reverse(vConnect.begin(), vConnect.end());
+
+ // Disconnect shorter branch
+ vector<CTransaction> vResurrect;
+ foreach(CBlockIndex* pindex, vDisconnect)
+ {
+ CBlock block;
+ if (!block.ReadFromDisk(pindex))
+ return error("Reorganize() : ReadFromDisk for disconnect failed");
+ if (!block.DisconnectBlock(txdb, pindex))
+ return error("Reorganize() : DisconnectBlock failed");
+
+ // Queue memory transactions to resurrect
+ foreach(const CTransaction& tx, block.vtx)
+ if (!tx.IsCoinBase())
+ vResurrect.push_back(tx);
+ }
+
+ // Connect longer branch
+ vector<CTransaction> vDelete;
+ for (int i = 0; i < vConnect.size(); i++)
+ {
+ CBlockIndex* pindex = vConnect[i];
+ CBlock block;
+ if (!block.ReadFromDisk(pindex))
+ return error("Reorganize() : ReadFromDisk for connect failed");
+ if (!block.ConnectBlock(txdb, pindex))
+ {
+ // Invalid block
+ txdb.TxnAbort();
+ return error("Reorganize() : ConnectBlock failed");
+ }
+
+ // Queue memory transactions to delete
+ foreach(const CTransaction& tx, block.vtx)
+ vDelete.push_back(tx);
+ }
+ if (!txdb.WriteHashBestChain(pindexNew->GetBlockHash()))
+ return error("Reorganize() : WriteHashBestChain failed");
+
+ // Make sure it's successfully written to disk before changing memory structure
+ if (!txdb.TxnCommit())
+ return error("Reorganize() : TxnCommit failed");
+
+ // Disconnect shorter branch
+ foreach(CBlockIndex* pindex, vDisconnect)
+ if (pindex->pprev)
+ pindex->pprev->pnext = NULL;
+
+ // Connect longer branch
+ foreach(CBlockIndex* pindex, vConnect)
+ if (pindex->pprev)
+ pindex->pprev->pnext = pindex;
+
+ // Resurrect memory transactions that were in the disconnected branch
+ foreach(CTransaction& tx, vResurrect)
+ tx.AcceptToMemoryPool(txdb, false);
+
+ // Delete redundant memory transactions that are in the connected branch
+ foreach(CTransaction& tx, vDelete)
+ tx.RemoveFromMemoryPool();
+
+ return true;
+}
+
+
+bool CBlock::SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew)
+{
+ uint256 hash = GetHash();
+
+ txdb.TxnBegin();
+ if (pindexGenesisBlock == NULL && hash == hashGenesisBlock)
+ {
+ txdb.WriteHashBestChain(hash);
+ if (!txdb.TxnCommit())
+ return error("SetBestChain() : TxnCommit failed");
+ pindexGenesisBlock = pindexNew;
+ }
+ else if (hashPrevBlock == hashBestChain)
+ {
+ // Adding to current best branch
+ if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))
+ {
+ txdb.TxnAbort();
+ InvalidChainFound(pindexNew);
+ return error("SetBestChain() : ConnectBlock failed");
+ }
+ if (!txdb.TxnCommit())
+ return error("SetBestChain() : TxnCommit failed");
+
+ // Add to current best branch
+ pindexNew->pprev->pnext = pindexNew;
+
+ // Delete redundant memory transactions
+ foreach(CTransaction& tx, vtx)
+ tx.RemoveFromMemoryPool();
+ }
+ else
+ {
+ // New best branch
+ if (!Reorganize(txdb, pindexNew))
+ {
+ txdb.TxnAbort();
+ InvalidChainFound(pindexNew);
+ return error("SetBestChain() : Reorganize failed");
+ }
+ }
+
+ // Update best block in wallet (so we can detect restored wallets)
+ if (!IsInitialBlockDownload())
+ {
+ CWalletDB walletdb;
+ const CBlockLocator locator(pindexNew);
+ if (!walletdb.WriteBestBlock(locator))
+ return error("SetBestChain() : WriteWalletBest failed");
+ }
+
+ // New best block
+ hashBestChain = hash;
+ pindexBest = pindexNew;
+ nBestHeight = pindexBest->nHeight;
+ bnBestChainWork = pindexNew->bnChainWork;
+ nTimeBestReceived = GetTime();
+ nTransactionsUpdated++;
+ printf("SetBestChain: new best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
+
+ return true;
+}
+
+
+bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
+{
+ // Check for duplicate
+ uint256 hash = GetHash();
+ if (mapBlockIndex.count(hash))
+ return error("AddToBlockIndex() : %s already exists", hash.ToString().substr(0,20).c_str());
+
+ // Construct new block index object
+ CBlockIndex* pindexNew = new CBlockIndex(nFile, nBlockPos, *this);
+ if (!pindexNew)
+ return error("AddToBlockIndex() : new CBlockIndex failed");
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
+ pindexNew->phashBlock = &((*mi).first);
+ map<uint256, CBlockIndex*>::iterator miPrev = mapBlockIndex.find(hashPrevBlock);
+ if (miPrev != mapBlockIndex.end())
+ {
+ pindexNew->pprev = (*miPrev).second;
+ pindexNew->nHeight = pindexNew->pprev->nHeight + 1;
+ }
+ pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();
+
+ CTxDB txdb;
+ txdb.TxnBegin();
+ txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
+ if (!txdb.TxnCommit())
+ return false;
+
+ // New best
+ if (pindexNew->bnChainWork > bnBestChainWork)
+ if (!SetBestChain(txdb, pindexNew))
+ return false;
+
+ txdb.Close();
+
+ if (pindexNew == pindexBest)
+ {
+ // Notify UI to display prev block's coinbase if it was ours
+ static uint256 hashPrevBestCoinBase;
+ CRITICAL_BLOCK(cs_mapWallet)
+ vWalletUpdated.push_back(hashPrevBestCoinBase);
+ hashPrevBestCoinBase = vtx[0].GetHash();
+ }
+
+ MainFrameRepaint();
+ return true;
+}
+
+
+
+
+bool CBlock::CheckBlock() const
+{
+ // These are checks that are independent of context
+ // that can be verified before saving an orphan block.
+
+ // Size limits
+ if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
+ return error("CheckBlock() : size limits failed");
+
+ // Check proof of work matches claimed amount
+ if (!CheckProofOfWork(GetHash(), nBits))
+ return error("CheckBlock() : proof of work failed");
+
+ // Check timestamp
+ if (GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60)
+ return error("CheckBlock() : block timestamp too far in the future");
+
+ // First transaction must be coinbase, the rest must not be
+ if (vtx.empty() || !vtx[0].IsCoinBase())
+ return error("CheckBlock() : first tx is not coinbase");
+ for (int i = 1; i < vtx.size(); i++)
+ if (vtx[i].IsCoinBase())
+ return error("CheckBlock() : more than one coinbase");
+
+ // Check transactions
+ foreach(const CTransaction& tx, vtx)
+ if (!tx.CheckTransaction())
+ return error("CheckBlock() : CheckTransaction failed");
+
+ // Check that it's not full of nonstandard transactions
+ if (GetSigOpCount() > MAX_BLOCK_SIGOPS)
+ return error("CheckBlock() : too many nonstandard transactions");
+
+ // Check merkleroot
+ if (hashMerkleRoot != BuildMerkleTree())
+ return error("CheckBlock() : hashMerkleRoot mismatch");
+
+ return true;
+}
+
+bool CBlock::AcceptBlock()
+{
+ // Check for duplicate
+ uint256 hash = GetHash();
+ if (mapBlockIndex.count(hash))
+ return error("AcceptBlock() : block already in mapBlockIndex");
+
+ // Get prev block index
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);
+ if (mi == mapBlockIndex.end())
+ return error("AcceptBlock() : prev block not found");
+ CBlockIndex* pindexPrev = (*mi).second;
+ int nHeight = pindexPrev->nHeight+1;
+
+ // Check proof of work
+ if (nBits != GetNextWorkRequired(pindexPrev))
+ return error("AcceptBlock() : incorrect proof of work");
+
+ // Check timestamp against prev
+ if (GetBlockTime() <= pindexPrev->GetMedianTimePast())
+ return error("AcceptBlock() : block's timestamp is too early");
+
+ // Check that all transactions are finalized
+ foreach(const CTransaction& tx, vtx)
+ if (!tx.IsFinal(nHeight, GetBlockTime()))
+ return error("AcceptBlock() : contains a non-final transaction");
+
+ // Check that the block chain matches the known block chain up to a checkpoint
+ if (!fTestNet)
+ if ((nHeight == 11111 && hash != uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) ||
+ (nHeight == 33333 && hash != uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) ||
+ (nHeight == 68555 && hash != uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a")) ||
+ (nHeight == 70567 && hash != uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) ||
+ (nHeight == 74000 && hash != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")) ||
+ (nHeight == 105000 && hash != uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")) ||
+ (nHeight == 118000 && hash != uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553")))
+ return error("AcceptBlock() : rejected by checkpoint lockin at %d", nHeight);
+
+ // Write block to history file
+ if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))
+ return error("AcceptBlock() : out of disk space");
+ unsigned int nFile = -1;
+ unsigned int nBlockPos = 0;
+ if (!WriteToDisk(nFile, nBlockPos))
+ return error("AcceptBlock() : WriteToDisk failed");
+ if (!AddToBlockIndex(nFile, nBlockPos))
+ return error("AcceptBlock() : AddToBlockIndex failed");
+
+ // Relay inventory, but don't relay old inventory during initial block download
+ if (hashBestChain == hash)
+ CRITICAL_BLOCK(cs_vNodes)
+ foreach(CNode* pnode, vNodes)
+ if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 118000))
+ pnode->PushInventory(CInv(MSG_BLOCK, hash));
+
+ return true;
+}
+
+bool ProcessBlock(CNode* pfrom, CBlock* pblock)
+{
+ // Check for duplicate
+ uint256 hash = pblock->GetHash();
+ if (mapBlockIndex.count(hash))
+ return error("ProcessBlock() : already have block %d %s", mapBlockIndex[hash]->nHeight, hash.ToString().substr(0,20).c_str());
+ if (mapOrphanBlocks.count(hash))
+ return error("ProcessBlock() : already have block (orphan) %s", hash.ToString().substr(0,20).c_str());
+
+ // Preliminary checks
+ if (!pblock->CheckBlock())
+ return error("ProcessBlock() : CheckBlock FAILED");
+
+ // If don't already have its previous block, shunt it off to holding area until we get it
+ if (!mapBlockIndex.count(pblock->hashPrevBlock))
+ {
+ printf("ProcessBlock: ORPHAN BLOCK, prev=%s\n", pblock->hashPrevBlock.ToString().substr(0,20).c_str());
+ CBlock* pblock2 = new CBlock(*pblock);
+ mapOrphanBlocks.insert(make_pair(hash, pblock2));
+ mapOrphanBlocksByPrev.insert(make_pair(pblock2->hashPrevBlock, pblock2));
+
+ // Ask this guy to fill in what we're missing
+ if (pfrom)
+ pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(pblock2));
+ return true;
+ }
+
+ // Store to disk
+ if (!pblock->AcceptBlock())
+ return error("ProcessBlock() : AcceptBlock FAILED");
+
+ // Recursively process any orphan blocks that depended on this one
+ vector<uint256> vWorkQueue;
+ vWorkQueue.push_back(hash);
+ for (int i = 0; i < vWorkQueue.size(); i++)
+ {
+ uint256 hashPrev = vWorkQueue[i];
+ for (multimap<uint256, CBlock*>::iterator mi = mapOrphanBlocksByPrev.lower_bound(hashPrev);
+ mi != mapOrphanBlocksByPrev.upper_bound(hashPrev);
+ ++mi)
+ {
+ CBlock* pblockOrphan = (*mi).second;
+ if (pblockOrphan->AcceptBlock())
+ vWorkQueue.push_back(pblockOrphan->GetHash());
+ mapOrphanBlocks.erase(pblockOrphan->GetHash());
+ delete pblockOrphan;
+ }
+ mapOrphanBlocksByPrev.erase(hashPrev);
+ }
+
+ printf("ProcessBlock: ACCEPTED\n");
+ return true;
+}
+
+
+
+
+
+
+
+
+template<typename Stream>
+bool ScanMessageStart(Stream& s)
+{
+ // Scan ahead to the next pchMessageStart, which should normally be immediately
+ // at the file pointer. Leaves file pointer at end of pchMessageStart.
+ s.clear(0);
+ short prevmask = s.exceptions(0);
+ const char* p = BEGIN(pchMessageStart);
+ try
+ {
+ loop
+ {
+ char c;
+ s.read(&c, 1);
+ if (s.fail())
+ {
+ s.clear(0);
+ s.exceptions(prevmask);
+ return false;
+ }
+ if (*p != c)
+ p = BEGIN(pchMessageStart);
+ if (*p == c)
+ {
+ if (++p == END(pchMessageStart))
+ {
+ s.clear(0);
+ s.exceptions(prevmask);
+ return true;
+ }
+ }
+ }
+ }
+ catch (...)
+ {
+ s.clear(0);
+ s.exceptions(prevmask);
+ return false;
+ }
+}
+
+bool CheckDiskSpace(uint64 nAdditionalBytes)
+{
+ uint64 nFreeBytesAvailable = filesystem::space(GetDataDir()).available;
+
+ // Check for 15MB because database could create another 10MB log file at any time
+ if (nFreeBytesAvailable < (uint64)15000000 + nAdditionalBytes)
+ {
+ fShutdown = true;
+ string strMessage = _("Warning: Disk space is low ");
+ strMiscWarning = strMessage;
+ printf("*** %s\n", strMessage.c_str());
+ ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
+ CreateThread(Shutdown, NULL);
+ return false;
+ }
+ return true;
+}
+
+FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode)
+{
+ if (nFile == -1)
+ return NULL;
+ FILE* file = fopen(strprintf("%s/blk%04d.dat", GetDataDir().c_str(), nFile).c_str(), pszMode);
+ if (!file)
+ return NULL;
+ if (nBlockPos != 0 && !strchr(pszMode, 'a') && !strchr(pszMode, 'w'))
+ {
+ if (fseek(file, nBlockPos, SEEK_SET) != 0)
+ {
+ fclose(file);
+ return NULL;
+ }
+ }
+ return file;
+}
+
+static unsigned int nCurrentBlockFile = 1;
+
+FILE* AppendBlockFile(unsigned int& nFileRet)
+{
+ nFileRet = 0;
+ loop
+ {
+ FILE* file = OpenBlockFile(nCurrentBlockFile, 0, "ab");
+ if (!file)
+ return NULL;
+ if (fseek(file, 0, SEEK_END) != 0)
+ return NULL;
+ // FAT32 filesize max 4GB, fseek and ftell max 2GB, so we must stay under 2GB
+ if (ftell(file) < 0x7F000000 - MAX_SIZE)
+ {
+ nFileRet = nCurrentBlockFile;
+ return file;
+ }
+ fclose(file);
+ nCurrentBlockFile++;
+ }
+}
+
+bool LoadBlockIndex(bool fAllowNew)
+{
+ if (fTestNet)
+ {
+ hashGenesisBlock = uint256("0x00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008");
+ bnProofOfWorkLimit = CBigNum(~uint256(0) >> 28);
+ pchMessageStart[0] = 0xfa;
+ pchMessageStart[1] = 0xbf;
+ pchMessageStart[2] = 0xb5;
+ pchMessageStart[3] = 0xda;
+ }
+
+ //
+ // Load block index
+ //
+ CTxDB txdb("cr");
+ if (!txdb.LoadBlockIndex())
+ return false;
+ txdb.Close();
+
+ //
+ // Init with genesis block
+ //
+ if (mapBlockIndex.empty())
+ {
+ if (!fAllowNew)
+ return false;
+
+ // Genesis Block:
+ // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
+ // CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
+ // CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
+ // CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
+ // vMerkleTree: 4a5e1e
+
+ // Genesis block
+ const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
+ CTransaction txNew;
+ txNew.vin.resize(1);
+ txNew.vout.resize(1);
+ txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
+ txNew.vout[0].nValue = 50 * COIN;
+ txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
+ CBlock block;
+ block.vtx.push_back(txNew);
+ block.hashPrevBlock = 0;
+ block.hashMerkleRoot = block.BuildMerkleTree();
+ block.nVersion = 1;
+ block.nTime = 1231006505;
+ block.nBits = 0x1d00ffff;
+ block.nNonce = 2083236893;
+
+ if (fTestNet)
+ {
+ block.nTime = 1296688602;
+ block.nBits = 0x1d07fff8;
+ block.nNonce = 384568319;
+ }
+
+ //// debug print
+ printf("%s\n", block.GetHash().ToString().c_str());
+ printf("%s\n", hashGenesisBlock.ToString().c_str());
+ printf("%s\n", block.hashMerkleRoot.ToString().c_str());
+ assert(block.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
+ block.print();
+ assert(block.GetHash() == hashGenesisBlock);
+
+ // Start new block file
+ unsigned int nFile;
+ unsigned int nBlockPos;
+ if (!block.WriteToDisk(nFile, nBlockPos))
+ return error("LoadBlockIndex() : writing genesis block to disk failed");
+ if (!block.AddToBlockIndex(nFile, nBlockPos))
+ return error("LoadBlockIndex() : genesis block not accepted");
+ }
+
+ return true;
+}
+
+
+
+void PrintBlockTree()
+{
+ // precompute tree structure
+ map<CBlockIndex*, vector<CBlockIndex*> > mapNext;
+ for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
+ {
+ CBlockIndex* pindex = (*mi).second;
+ mapNext[pindex->pprev].push_back(pindex);
+ // test
+ //while (rand() % 3 == 0)
+ // mapNext[pindex->pprev].push_back(pindex);
+ }
+
+ vector<pair<int, CBlockIndex*> > vStack;
+ vStack.push_back(make_pair(0, pindexGenesisBlock));
+
+ int nPrevCol = 0;
+ while (!vStack.empty())
+ {
+ int nCol = vStack.back().first;
+ CBlockIndex* pindex = vStack.back().second;
+ vStack.pop_back();
+
+ // print split or gap
+ if (nCol > nPrevCol)
+ {
+ for (int i = 0; i < nCol-1; i++)
+ printf("| ");
+ printf("|\\\n");
+ }
+ else if (nCol < nPrevCol)
+ {
+ for (int i = 0; i < nCol; i++)
+ printf("| ");
+ printf("|\n");
+ }
+ nPrevCol = nCol;
+
+ // print columns
+ for (int i = 0; i < nCol; i++)
+ printf("| ");
+
+ // print item
+ CBlock block;
+ block.ReadFromDisk(pindex);
+ printf("%d (%u,%u) %s %s tx %d",
+ pindex->nHeight,
+ pindex->nFile,
+ pindex->nBlockPos,
+ block.GetHash().ToString().substr(0,20).c_str(),
+ DateTimeStrFormat("%x %H:%M:%S", block.GetBlockTime()).c_str(),
+ block.vtx.size());
+
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ if (mapWallet.count(block.vtx[0].GetHash()))
+ {
+ CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];
+ printf(" mine: %d %d %d", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
+ }
+ }
+ printf("\n");
+
+
+ // put the main timechain first
+ vector<CBlockIndex*>& vNext = mapNext[pindex];
+ for (int i = 0; i < vNext.size(); i++)
+ {
+ if (vNext[i]->pnext)
+ {
+ swap(vNext[0], vNext[i]);
+ break;
+ }
+ }
+
+ // iterate children
+ for (int i = 0; i < vNext.size(); i++)
+ vStack.push_back(make_pair(nCol+i, vNext[i]));
+ }
+}
+
+
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// CAlert
+//
+
+map<uint256, CAlert> mapAlerts;
+CCriticalSection cs_mapAlerts;
+
+string GetWarnings(string strFor)
+{
+ int nPriority = 0;
+ string strStatusBar;
+ string strRPC;
+ if (GetBoolArg("-testsafemode"))
+ strRPC = "test";
+
+ // Misc warnings like out of disk space and clock is wrong
+ if (strMiscWarning != "")
+ {
+ nPriority = 1000;
+ strStatusBar = strMiscWarning;
+ }
+
+ // Longer invalid proof-of-work chain
+ if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
+ {
+ nPriority = 2000;
+ strStatusBar = strRPC = "WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.";
+ }
+
+ // Alerts
+ CRITICAL_BLOCK(cs_mapAlerts)
+ {
+ foreach(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
+ {
+ const CAlert& alert = item.second;
+ if (alert.AppliesToMe() && alert.nPriority > nPriority)
+ {
+ nPriority = alert.nPriority;
+ strStatusBar = alert.strStatusBar;
+ }
+ }
+ }
+
+ if (strFor == "statusbar")
+ return strStatusBar;
+ else if (strFor == "rpc")
+ return strRPC;
+ assert(("GetWarnings() : invalid parameter", false));
+ return "error";
+}
+
+bool CAlert::ProcessAlert()
+{
+ if (!CheckSignature())
+ return false;
+ if (!IsInEffect())
+ return false;
+
+ CRITICAL_BLOCK(cs_mapAlerts)
+ {
+ // Cancel previous alerts
+ for (map<uint256, CAlert>::iterator mi = mapAlerts.begin(); mi != mapAlerts.end();)
+ {
+ const CAlert& alert = (*mi).second;
+ if (Cancels(alert))
+ {
+ printf("cancelling alert %d\n", alert.nID);
+ mapAlerts.erase(mi++);
+ }
+ else if (!alert.IsInEffect())
+ {
+ printf("expiring alert %d\n", alert.nID);
+ mapAlerts.erase(mi++);
+ }
+ else
+ mi++;
+ }
+
+ // Check if this alert has been cancelled
+ foreach(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
+ {
+ const CAlert& alert = item.second;
+ if (alert.Cancels(*this))
+ {
+ printf("alert already cancelled by %d\n", alert.nID);
+ return false;
+ }
+ }
+
+ // Add to mapAlerts
+ mapAlerts.insert(make_pair(GetHash(), *this));
+ }
+
+ printf("accepted alert %d, AppliesToMe()=%d\n", nID, AppliesToMe());
+ MainFrameRepaint();
+ return true;
+}
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Messages
+//
+
+
+bool AlreadyHave(CTxDB& txdb, const CInv& inv)
+{
+ switch (inv.type)
+ {
+ case MSG_TX: return mapTransactions.count(inv.hash) || mapOrphanTransactions.count(inv.hash) || txdb.ContainsTx(inv.hash);
+ case MSG_BLOCK: return mapBlockIndex.count(inv.hash) || mapOrphanBlocks.count(inv.hash);
+ }
+ // Don't know what it is, just say we already got one
+ return true;
+}
+
+
+
+
+// The message start string is designed to be unlikely to occur in normal data.
+// The characters are rarely used upper ascii, not valid as UTF-8, and produce
+// a large 4-byte int at any alignment.
+char pchMessageStart[4] = { 0xf9, 0xbe, 0xb4, 0xd9 };
+
+
+bool ProcessMessages(CNode* pfrom)
+{
+ CDataStream& vRecv = pfrom->vRecv;
+ if (vRecv.empty())
+ return true;
+ //if (fDebug)
+ // printf("ProcessMessages(%u bytes)\n", vRecv.size());
+
+ //
+ // Message format
+ // (4) message start
+ // (12) command
+ // (4) size
+ // (4) checksum
+ // (x) data
+ //
+
+ loop
+ {
+ // Scan for message start
+ CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));
+ int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());
+ if (vRecv.end() - pstart < nHeaderSize)
+ {
+ if (vRecv.size() > nHeaderSize)
+ {
+ printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");
+ vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);
+ }
+ break;
+ }
+ if (pstart - vRecv.begin() > 0)
+ printf("\n\nPROCESSMESSAGE SKIPPED %d BYTES\n\n", pstart - vRecv.begin());
+ vRecv.erase(vRecv.begin(), pstart);
+
+ // Read header
+ vector<char> vHeaderSave(vRecv.begin(), vRecv.begin() + nHeaderSize);
+ CMessageHeader hdr;
+ vRecv >> hdr;
+ if (!hdr.IsValid())
+ {
+ printf("\n\nPROCESSMESSAGE: ERRORS IN HEADER %s\n\n\n", hdr.GetCommand().c_str());
+ continue;
+ }
+ string strCommand = hdr.GetCommand();
+
+ // Message size
+ unsigned int nMessageSize = hdr.nMessageSize;
+ if (nMessageSize > MAX_SIZE)
+ {
+ printf("ProcessMessage(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
+ continue;
+ }
+ if (nMessageSize > vRecv.size())
+ {
+ // Rewind and wait for rest of message
+ vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());
+ break;
+ }
+
+ // Checksum
+ if (vRecv.GetVersion() >= 209)
+ {
+ uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
+ unsigned int nChecksum = 0;
+ memcpy(&nChecksum, &hash, sizeof(nChecksum));
+ if (nChecksum != hdr.nChecksum)
+ {
+ printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
+ strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
+ continue;
+ }
+ }
+
+ // Copy message to its own buffer
+ CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);
+ vRecv.ignore(nMessageSize);
+
+ // Process message
+ bool fRet = false;
+ try
+ {
+ CRITICAL_BLOCK(cs_main)
+ fRet = ProcessMessage(pfrom, strCommand, vMsg);
+ if (fShutdown)
+ return true;
+ }
+ catch (std::ios_base::failure& e)
+ {
+ if (strstr(e.what(), "end of data"))
+ {
+ // Allow exceptions from underlength message on vRecv
+ printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
+ }
+ else if (strstr(e.what(), "size too large"))
+ {
+ // Allow exceptions from overlong size
+ printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
+ }
+ else
+ {
+ PrintExceptionContinue(&e, "ProcessMessage()");
+ }
+ }
+ catch (std::exception& e) {
+ PrintExceptionContinue(&e, "ProcessMessage()");
+ } catch (...) {
+ PrintExceptionContinue(NULL, "ProcessMessage()");
+ }
+
+ if (!fRet)
+ printf("ProcessMessage(%s, %u bytes) FAILED\n", strCommand.c_str(), nMessageSize);
+ }
+
+ vRecv.Compact();
+ return true;
+}
+
+
+
+
+bool ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
+{
+ static map<unsigned int, vector<unsigned char> > mapReuseKey;
+ RandAddSeedPerfmon();
+ if (fDebug)
+ printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
+ printf("received: %s (%d bytes)\n", strCommand.c_str(), vRecv.size());
+ if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)
+ {
+ printf("dropmessagestest DROPPING RECV MESSAGE\n");
+ return true;
+ }
+
+
+
+
+
+ if (strCommand == "version")
+ {
+ // Each connection can only send one version message
+ if (pfrom->nVersion != 0)
+ return false;
+
+ int64 nTime;
+ CAddress addrMe;
+ CAddress addrFrom;
+ uint64 nNonce = 1;
+ vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
+ if (pfrom->nVersion == 10300)
+ pfrom->nVersion = 300;
+ if (pfrom->nVersion >= 106 && !vRecv.empty())
+ vRecv >> addrFrom >> nNonce;
+ if (pfrom->nVersion >= 106 && !vRecv.empty())
+ vRecv >> pfrom->strSubVer;
+ if (pfrom->nVersion >= 209 && !vRecv.empty())
+ vRecv >> pfrom->nStartingHeight;
+
+ if (pfrom->nVersion == 0)
+ return false;
+
+ // Disconnect if we connected to ourself
+ if (nNonce == nLocalHostNonce && nNonce > 1)
+ {
+ printf("connected to self at %s, disconnecting\n", pfrom->addr.ToString().c_str());
+ pfrom->fDisconnect = true;
+ return true;
+ }
+
+ // Be shy and don't send version until we hear
+ if (pfrom->fInbound)
+ pfrom->PushVersion();
+
+ pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);
+
+ AddTimeData(pfrom->addr.ip, nTime);
+
+ // Change version
+ if (pfrom->nVersion >= 209)
+ pfrom->PushMessage("verack");
+ pfrom->vSend.SetVersion(min(pfrom->nVersion, VERSION));
+ if (pfrom->nVersion < 209)
+ pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
+
+ if (!pfrom->fInbound)
+ {
+ // Advertise our address
+ if (addrLocalHost.IsRoutable() && !fUseProxy)
+ {
+ CAddress addr(addrLocalHost);
+ addr.nTime = GetAdjustedTime();
+ pfrom->PushAddress(addr);
+ }
+
+ // Get recent addresses
+ if (pfrom->nVersion >= 31402 || mapAddresses.size() < 1000)
+ {
+ pfrom->PushMessage("getaddr");
+ pfrom->fGetAddr = true;
+ }
+ }
+
+ // Ask the first connected node for block updates
+ static int nAskedForBlocks;
+ if (!pfrom->fClient && (nAskedForBlocks < 1 || vNodes.size() <= 1))
+ {
+ nAskedForBlocks++;
+ pfrom->PushGetBlocks(pindexBest, uint256(0));
+ }
+
+ // Relay alerts
+ CRITICAL_BLOCK(cs_mapAlerts)
+ foreach(PAIRTYPE(const uint256, CAlert)& item, mapAlerts)
+ item.second.RelayTo(pfrom);
+
+ pfrom->fSuccessfullyConnected = true;
+
+ printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);
+ }
+
+
+ else if (pfrom->nVersion == 0)
+ {
+ // Must have a version message before anything else
+ return false;
+ }
+
+
+ else if (strCommand == "verack")
+ {
+ pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
+ }
+
+
+ else if (strCommand == "addr")
+ {
+ vector<CAddress> vAddr;
+ vRecv >> vAddr;
+
+ // Don't want addr from older versions unless seeding
+ if (pfrom->nVersion < 209)
+ return true;
+ if (pfrom->nVersion < 31402 && mapAddresses.size() > 1000)
+ return true;
+ if (vAddr.size() > 1000)
+ return error("message addr size() = %d", vAddr.size());
+
+ // Store the new addresses
+ int64 nNow = GetAdjustedTime();
+ int64 nSince = nNow - 10 * 60;
+ foreach(CAddress& addr, vAddr)
+ {
+ if (fShutdown)
+ return true;
+ // ignore IPv6 for now, since it isn't implemented anyway
+ if (!addr.IsIPv4())
+ continue;
+ if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60)
+ addr.nTime = nNow - 5 * 24 * 60 * 60;
+ AddAddress(addr, 2 * 60 * 60);
+ pfrom->AddAddressKnown(addr);
+ if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable())
+ {
+ // Relay to a limited number of other nodes
+ CRITICAL_BLOCK(cs_vNodes)
+ {
+ // Use deterministic randomness to send to the same nodes for 24 hours
+ // at a time so the setAddrKnowns of the chosen nodes prevent repeats
+ static uint256 hashSalt;
+ if (hashSalt == 0)
+ RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
+ uint256 hashRand = hashSalt ^ (((int64)addr.ip)<<32) ^ ((GetTime()+addr.ip)/(24*60*60));
+ hashRand = Hash(BEGIN(hashRand), END(hashRand));
+ multimap<uint256, CNode*> mapMix;
+ foreach(CNode* pnode, vNodes)
+ {
+ if (pnode->nVersion < 31402)
+ continue;
+ unsigned int nPointer;
+ memcpy(&nPointer, &pnode, sizeof(nPointer));
+ uint256 hashKey = hashRand ^ nPointer;
+ hashKey = Hash(BEGIN(hashKey), END(hashKey));
+ mapMix.insert(make_pair(hashKey, pnode));
+ }
+ int nRelayNodes = 2;
+ for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)
+ ((*mi).second)->PushAddress(addr);
+ }
+ }
+ }
+ if (vAddr.size() < 1000)
+ pfrom->fGetAddr = false;
+ }
+
+
+ else if (strCommand == "inv")
+ {
+ vector<CInv> vInv;
+ vRecv >> vInv;
+ if (vInv.size() > 50000)
+ return error("message inv size() = %d", vInv.size());
+
+ CTxDB txdb("r");
+ foreach(const CInv& inv, vInv)
+ {
+ if (fShutdown)
+ return true;
+ pfrom->AddInventoryKnown(inv);
+
+ bool fAlreadyHave = AlreadyHave(txdb, inv);
+ printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");
+
+ if (!fAlreadyHave)
+ pfrom->AskFor(inv);
+ else if (inv.type == MSG_BLOCK && mapOrphanBlocks.count(inv.hash))
+ pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(mapOrphanBlocks[inv.hash]));
+
+ // Track requests for our stuff
+ CRITICAL_BLOCK(cs_mapRequestCount)
+ {
+ map<uint256, int>::iterator mi = mapRequestCount.find(inv.hash);
+ if (mi != mapRequestCount.end())
+ (*mi).second++;
+ }
+ }
+ }
+
+
+ else if (strCommand == "getdata")
+ {
+ vector<CInv> vInv;
+ vRecv >> vInv;
+ if (vInv.size() > 50000)
+ return error("message getdata size() = %d", vInv.size());
+
+ foreach(const CInv& inv, vInv)
+ {
+ if (fShutdown)
+ return true;
+ printf("received getdata for: %s\n", inv.ToString().c_str());
+
+ if (inv.type == MSG_BLOCK)
+ {
+ // Send block from disk
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(inv.hash);
+ if (mi != mapBlockIndex.end())
+ {
+ CBlock block;
+ block.ReadFromDisk((*mi).second);
+ pfrom->PushMessage("block", block);
+
+ // Trigger them to send a getblocks request for the next batch of inventory
+ if (inv.hash == pfrom->hashContinue)
+ {
+ // Bypass PushInventory, this must send even if redundant,
+ // and we want it right after the last block so they don't
+ // wait for other stuff first.
+ vector<CInv> vInv;
+ vInv.push_back(CInv(MSG_BLOCK, hashBestChain));
+ pfrom->PushMessage("inv", vInv);
+ pfrom->hashContinue = 0;
+ }
+ }
+ }
+ else if (inv.IsKnownType())
+ {
+ // Send stream from relay memory
+ CRITICAL_BLOCK(cs_mapRelay)
+ {
+ map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);
+ if (mi != mapRelay.end())
+ pfrom->PushMessage(inv.GetCommand(), (*mi).second);
+ }
+ }
+
+ // Track requests for our stuff
+ CRITICAL_BLOCK(cs_mapRequestCount)
+ {
+ map<uint256, int>::iterator mi = mapRequestCount.find(inv.hash);
+ if (mi != mapRequestCount.end())
+ (*mi).second++;
+ }
+ }
+ }
+
+
+ else if (strCommand == "getblocks")
+ {
+ CBlockLocator locator;
+ uint256 hashStop;
+ vRecv >> locator >> hashStop;
+
+ // Find the last block the caller has in the main chain
+ CBlockIndex* pindex = locator.GetBlockIndex();
+
+ // Send the rest of the chain
+ if (pindex)
+ pindex = pindex->pnext;
+ int nLimit = 500 + locator.GetDistanceBack();
+ printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
+ for (; pindex; pindex = pindex->pnext)
+ {
+ if (pindex->GetBlockHash() == hashStop)
+ {
+ printf(" getblocks stopping at %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
+ break;
+ }
+ pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
+ if (--nLimit <= 0)
+ {
+ // When this block is requested, we'll send an inv that'll make them
+ // getblocks the next batch of inventory.
+ printf(" getblocks stopping at limit %d %s\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str());
+ pfrom->hashContinue = pindex->GetBlockHash();
+ break;
+ }
+ }
+ }
+
+
+ else if (strCommand == "getheaders")
+ {
+ CBlockLocator locator;
+ uint256 hashStop;
+ vRecv >> locator >> hashStop;
+
+ CBlockIndex* pindex = NULL;
+ if (locator.IsNull())
+ {
+ // If locator is null, return the hashStop block
+ map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashStop);
+ if (mi == mapBlockIndex.end())
+ return true;
+ pindex = (*mi).second;
+ }
+ else
+ {
+ // Find the last block the caller has in the main chain
+ pindex = locator.GetBlockIndex();
+ if (pindex)
+ pindex = pindex->pnext;
+ }
+
+ vector<CBlock> vHeaders;
+ int nLimit = 2000 + locator.GetDistanceBack();
+ printf("getheaders %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
+ for (; pindex; pindex = pindex->pnext)
+ {
+ vHeaders.push_back(pindex->GetBlockHeader());
+ if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop)
+ break;
+ }
+ pfrom->PushMessage("headers", vHeaders);
+ }
+
+
+ else if (strCommand == "tx")
+ {
+ vector<uint256> vWorkQueue;
+ CDataStream vMsg(vRecv);
+ CTransaction tx;
+ vRecv >> tx;
+
+ CInv inv(MSG_TX, tx.GetHash());
+ pfrom->AddInventoryKnown(inv);
+
+ bool fMissingInputs = false;
+ if (tx.AcceptToMemoryPool(true, &fMissingInputs))
+ {
+ AddToWalletIfInvolvingMe(tx, NULL, true);
+ RelayMessage(inv, vMsg);
+ mapAlreadyAskedFor.erase(inv);
+ vWorkQueue.push_back(inv.hash);
+
+ // Recursively process any orphan transactions that depended on this one
+ for (int i = 0; i < vWorkQueue.size(); i++)
+ {
+ uint256 hashPrev = vWorkQueue[i];
+ for (multimap<uint256, CDataStream*>::iterator mi = mapOrphanTransactionsByPrev.lower_bound(hashPrev);
+ mi != mapOrphanTransactionsByPrev.upper_bound(hashPrev);
+ ++mi)
+ {
+ const CDataStream& vMsg = *((*mi).second);
+ CTransaction tx;
+ CDataStream(vMsg) >> tx;
+ CInv inv(MSG_TX, tx.GetHash());
+
+ if (tx.AcceptToMemoryPool(true))
+ {
+ printf(" accepted orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
+ AddToWalletIfInvolvingMe(tx, NULL, true);
+ RelayMessage(inv, vMsg);
+ mapAlreadyAskedFor.erase(inv);
+ vWorkQueue.push_back(inv.hash);
+ }
+ }
+ }
+
+ foreach(uint256 hash, vWorkQueue)
+ EraseOrphanTx(hash);
+ }
+ else if (fMissingInputs)
+ {
+ printf("storing orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
+ AddOrphanTx(vMsg);
+ }
+ }
+
+
+ else if (strCommand == "block")
+ {
+ CBlock block;
+ vRecv >> block;
+
+ printf("received block %s\n", block.GetHash().ToString().substr(0,20).c_str());
+ // block.print();
+
+ CInv inv(MSG_BLOCK, block.GetHash());
+ pfrom->AddInventoryKnown(inv);
+
+ if (ProcessBlock(pfrom, &block))
+ mapAlreadyAskedFor.erase(inv);
+ }
+
+
+ else if (strCommand == "getaddr")
+ {
+ // Nodes rebroadcast an addr every 24 hours
+ pfrom->vAddrToSend.clear();
+ int64 nSince = GetAdjustedTime() - 3 * 60 * 60; // in the last 3 hours
+ CRITICAL_BLOCK(cs_mapAddresses)
+ {
+ unsigned int nCount = 0;
+ foreach(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
+ {
+ const CAddress& addr = item.second;
+ if (addr.nTime > nSince)
+ nCount++;
+ }
+ foreach(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
+ {
+ const CAddress& addr = item.second;
+ if (addr.nTime > nSince && GetRand(nCount) < 2500)
+ pfrom->PushAddress(addr);
+ }
+ }
+ }
+
+
+ else if (strCommand == "checkorder")
+ {
+ uint256 hashReply;
+ vRecv >> hashReply;
+
+ if (!GetBoolArg("-allowreceivebyip"))
+ {
+ pfrom->PushMessage("reply", hashReply, (int)2, string(""));
+ return true;
+ }
+
+ CWalletTx order;
+ vRecv >> order;
+
+ /// we have a chance to check the order here
+
+ // Keep giving the same key to the same ip until they use it
+ if (!mapReuseKey.count(pfrom->addr.ip))
+ mapReuseKey[pfrom->addr.ip] = GetKeyFromKeyPool();
+
+ // Send back approval of order and pubkey to use
+ CScript scriptPubKey;
+ scriptPubKey << mapReuseKey[pfrom->addr.ip] << OP_CHECKSIG;
+ pfrom->PushMessage("reply", hashReply, (int)0, scriptPubKey);
+ }
+
+
+ else if (strCommand == "submitorder")
+ {
+ uint256 hashReply;
+ vRecv >> hashReply;
+
+ if (!GetBoolArg("-allowreceivebyip"))
+ {
+ pfrom->PushMessage("reply", hashReply, (int)2);
+ return true;
+ }
+
+ CWalletTx wtxNew;
+ vRecv >> wtxNew;
+ wtxNew.fFromMe = false;
+
+ // Broadcast
+ if (!wtxNew.AcceptWalletTransaction())
+ {
+ pfrom->PushMessage("reply", hashReply, (int)1);
+ return error("submitorder AcceptWalletTransaction() failed, returning error 1");
+ }
+ wtxNew.fTimeReceivedIsTxTime = true;
+ AddToWallet(wtxNew);
+ wtxNew.RelayWalletTransaction();
+ mapReuseKey.erase(pfrom->addr.ip);
+
+ // Send back confirmation
+ pfrom->PushMessage("reply", hashReply, (int)0);
+ }
+
+
+ else if (strCommand == "reply")
+ {
+ uint256 hashReply;
+ vRecv >> hashReply;
+
+ CRequestTracker tracker;
+ CRITICAL_BLOCK(pfrom->cs_mapRequests)
+ {
+ map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);
+ if (mi != pfrom->mapRequests.end())
+ {
+ tracker = (*mi).second;
+ pfrom->mapRequests.erase(mi);
+ }
+ }
+ if (!tracker.IsNull())
+ tracker.fn(tracker.param1, vRecv);
+ }
+
+
+ else if (strCommand == "ping")
+ {
+ }
+
+
+ else if (strCommand == "alert")
+ {
+ CAlert alert;
+ vRecv >> alert;
+
+ if (alert.ProcessAlert())
+ {
+ // Relay
+ pfrom->setKnown.insert(alert.GetHash());
+ CRITICAL_BLOCK(cs_vNodes)
+ foreach(CNode* pnode, vNodes)
+ alert.RelayTo(pnode);
+ }
+ }
+
+
+ else
+ {
+ // Ignore unknown commands for extensibility
+ }
+
+
+ // Update the last seen time for this node's address
+ if (pfrom->fNetworkNode)
+ if (strCommand == "version" || strCommand == "addr" || strCommand == "inv" || strCommand == "getdata" || strCommand == "ping")
+ AddressCurrentlyConnected(pfrom->addr);
+
+
+ return true;
+}
+
+
+
+
+
+
+
+
+
+bool SendMessages(CNode* pto, bool fSendTrickle)
+{
+ CRITICAL_BLOCK(cs_main)
+ {
+ // Don't send anything until we get their version message
+ if (pto->nVersion == 0)
+ return true;
+
+ // Keep-alive ping
+ if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())
+ pto->PushMessage("ping");
+
+ // Resend wallet transactions that haven't gotten in a block yet
+ ResendWalletTransactions();
+
+ // Address refresh broadcast
+ static int64 nLastRebroadcast;
+ if (GetTime() - nLastRebroadcast > 24 * 60 * 60)
+ {
+ nLastRebroadcast = GetTime();
+ CRITICAL_BLOCK(cs_vNodes)
+ {
+ foreach(CNode* pnode, vNodes)
+ {
+ // Periodically clear setAddrKnown to allow refresh broadcasts
+ pnode->setAddrKnown.clear();
+
+ // Rebroadcast our address
+ if (addrLocalHost.IsRoutable() && !fUseProxy)
+ {
+ CAddress addr(addrLocalHost);
+ addr.nTime = GetAdjustedTime();
+ pnode->PushAddress(addr);
+ }
+ }
+ }
+ }
+
+ // Clear out old addresses periodically so it's not too much work at once
+ static int64 nLastClear;
+ if (nLastClear == 0)
+ nLastClear = GetTime();
+ if (GetTime() - nLastClear > 10 * 60 && vNodes.size() >= 3)
+ {
+ nLastClear = GetTime();
+ CRITICAL_BLOCK(cs_mapAddresses)
+ {
+ CAddrDB addrdb;
+ int64 nSince = GetAdjustedTime() - 14 * 24 * 60 * 60;
+ for (map<vector<unsigned char>, CAddress>::iterator mi = mapAddresses.begin();
+ mi != mapAddresses.end();)
+ {
+ const CAddress& addr = (*mi).second;
+ if (addr.nTime < nSince)
+ {
+ if (mapAddresses.size() < 1000 || GetTime() > nLastClear + 20)
+ break;
+ addrdb.EraseAddress(addr);
+ mapAddresses.erase(mi++);
+ }
+ else
+ mi++;
+ }
+ }
+ }
+
+
+ //
+ // Message: addr
+ //
+ if (fSendTrickle)
+ {
+ vector<CAddress> vAddr;
+ vAddr.reserve(pto->vAddrToSend.size());
+ foreach(const CAddress& addr, pto->vAddrToSend)
+ {
+ // returns true if wasn't already contained in the set
+ if (pto->setAddrKnown.insert(addr).second)
+ {
+ vAddr.push_back(addr);
+ // receiver rejects addr messages larger than 1000
+ if (vAddr.size() >= 1000)
+ {
+ pto->PushMessage("addr", vAddr);
+ vAddr.clear();
+ }
+ }
+ }
+ pto->vAddrToSend.clear();
+ if (!vAddr.empty())
+ pto->PushMessage("addr", vAddr);
+ }
+
+
+ //
+ // Message: inventory
+ //
+ vector<CInv> vInv;
+ vector<CInv> vInvWait;
+ CRITICAL_BLOCK(pto->cs_inventory)
+ {
+ vInv.reserve(pto->vInventoryToSend.size());
+ vInvWait.reserve(pto->vInventoryToSend.size());
+ foreach(const CInv& inv, pto->vInventoryToSend)
+ {
+ if (pto->setInventoryKnown.count(inv))
+ continue;
+
+ // trickle out tx inv to protect privacy
+ if (inv.type == MSG_TX && !fSendTrickle)
+ {
+ // 1/4 of tx invs blast to all immediately
+ static uint256 hashSalt;
+ if (hashSalt == 0)
+ RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
+ uint256 hashRand = inv.hash ^ hashSalt;
+ hashRand = Hash(BEGIN(hashRand), END(hashRand));
+ bool fTrickleWait = ((hashRand & 3) != 0);
+
+ // always trickle our own transactions
+ if (!fTrickleWait)
+ {
+ TRY_CRITICAL_BLOCK(cs_mapWallet)
+ {
+ map<uint256, CWalletTx>::iterator mi = mapWallet.find(inv.hash);
+ if (mi != mapWallet.end())
+ {
+ CWalletTx& wtx = (*mi).second;
+ if (wtx.fFromMe)
+ fTrickleWait = true;
+ }
+ }
+ }
+
+ if (fTrickleWait)
+ {
+ vInvWait.push_back(inv);
+ continue;
+ }
+ }
+
+ // returns true if wasn't already contained in the set
+ if (pto->setInventoryKnown.insert(inv).second)
+ {
+ vInv.push_back(inv);
+ if (vInv.size() >= 1000)
+ {
+ pto->PushMessage("inv", vInv);
+ vInv.clear();
+ }
+ }
+ }
+ pto->vInventoryToSend = vInvWait;
+ }
+ if (!vInv.empty())
+ pto->PushMessage("inv", vInv);
+
+
+ //
+ // Message: getdata
+ //
+ vector<CInv> vGetData;
+ int64 nNow = GetTime() * 1000000;
+ CTxDB txdb("r");
+ while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow)
+ {
+ const CInv& inv = (*pto->mapAskFor.begin()).second;
+ if (!AlreadyHave(txdb, inv))
+ {
+ printf("sending getdata: %s\n", inv.ToString().c_str());
+ vGetData.push_back(inv);
+ if (vGetData.size() >= 1000)
+ {
+ pto->PushMessage("getdata", vGetData);
+ vGetData.clear();
+ }
+ }
+ pto->mapAskFor.erase(pto->mapAskFor.begin());
+ }
+ if (!vGetData.empty())
+ pto->PushMessage("getdata", vGetData);
+
+ }
+ return true;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// BitcoinMiner
+//
+
+void GenerateBitcoins(bool fGenerate)
+{
+ if (fGenerateBitcoins != fGenerate)
+ {
+ fGenerateBitcoins = fGenerate;
+ CWalletDB().WriteSetting("fGenerateBitcoins", fGenerateBitcoins);
+ MainFrameRepaint();
+ }
+ if (fGenerateBitcoins)
+ {
+ int nProcessors = boost::thread::hardware_concurrency();
+ printf("%d processors\n", nProcessors);
+ if (nProcessors < 1)
+ nProcessors = 1;
+ if (fLimitProcessors && nProcessors > nLimitProcessors)
+ nProcessors = nLimitProcessors;
+ int nAddThreads = nProcessors - vnThreadsRunning[3];
+ printf("Starting %d BitcoinMiner threads\n", nAddThreads);
+ for (int i = 0; i < nAddThreads; i++)
+ {
+ if (!CreateThread(ThreadBitcoinMiner, NULL))
+ printf("Error: CreateThread(ThreadBitcoinMiner) failed\n");
+ Sleep(10);
+ }
+ }
+}
+
+void ThreadBitcoinMiner(void* parg)
+{
+ try
+ {
+ vnThreadsRunning[3]++;
+ BitcoinMiner();
+ vnThreadsRunning[3]--;
+ }
+ catch (std::exception& e) {
+ vnThreadsRunning[3]--;
+ PrintException(&e, "ThreadBitcoinMiner()");
+ } catch (...) {
+ vnThreadsRunning[3]--;
+ PrintException(NULL, "ThreadBitcoinMiner()");
+ }
+ UIThreadCall(boost::bind(CalledSetStatusBar, "", 0));
+ nHPSTimerStart = 0;
+ if (vnThreadsRunning[3] == 0)
+ dHashesPerSec = 0;
+ printf("ThreadBitcoinMiner exiting, %d threads remaining\n", vnThreadsRunning[3]);
+}
+
+#if defined(__GNUC__) && defined(CRYPTOPP_X86_ASM_AVAILABLE)
+void CallCPUID(int in, int& aret, int& cret)
+{
+ int a, c;
+ asm (
+ "mov %2, %%eax; " // in into eax
+ "cpuid;"
+ "mov %%eax, %0;" // eax into a
+ "mov %%ecx, %1;" // ecx into c
+ :"=r"(a),"=r"(c) /* output */
+ :"r"(in) /* input */
+ :"%eax","%ebx","%ecx","%edx" /* clobbered register */
+ );
+ aret = a;
+ cret = c;
+}
+
+bool Detect128BitSSE2()
+{
+ int a, c, nBrand;
+ CallCPUID(0, a, nBrand);
+ bool fIntel = (nBrand == 0x6c65746e); // ntel
+ bool fAMD = (nBrand == 0x444d4163); // cAMD
+
+ struct
+ {
+ unsigned int nStepping : 4;
+ unsigned int nModel : 4;
+ unsigned int nFamily : 4;
+ unsigned int nProcessorType : 2;
+ unsigned int nUnused : 2;
+ unsigned int nExtendedModel : 4;
+ unsigned int nExtendedFamily : 8;
+ }
+ cpu;
+ CallCPUID(1, a, c);
+ memcpy(&cpu, &a, sizeof(cpu));
+ int nFamily = cpu.nExtendedFamily + cpu.nFamily;
+ int nModel = cpu.nExtendedModel*16 + cpu.nModel;
+
+ // We need Intel Nehalem or AMD K10 or better for 128bit SSE2
+ // Nehalem = i3/i5/i7 and some Xeon
+ // K10 = Opterons with 4 or more cores, Phenom, Phenom II, Athlon II
+ // Intel Core i5 family 6, model 26 or 30
+ // Intel Core i7 family 6, model 26 or 30
+ // Intel Core i3 family 6, model 37
+ // AMD Phenom family 16, model 10
+ bool fUseSSE2 = ((fIntel && nFamily * 10000 + nModel >= 60026) ||
+ (fAMD && nFamily * 10000 + nModel >= 160010));
+
+ // AMD reports a lower model number in 64-bit mode
+ if (fAMD && sizeof(void*) > 4 && nFamily * 10000 + nModel >= 160000)
+ fUseSSE2 = true;
+
+ static bool fPrinted;
+ if (!fPrinted)
+ {
+ fPrinted = true;
+ printf("CPUID %08x family %d, model %d, stepping %d, fUseSSE2=%d\n", nBrand, nFamily, nModel, cpu.nStepping, fUseSSE2);
+ }
+ return fUseSSE2;
+}
+#else
+bool Detect128BitSSE2() { return false; }
+#endif
+
+int FormatHashBlocks(void* pbuffer, unsigned int len)
+{
+ unsigned char* pdata = (unsigned char*)pbuffer;
+ unsigned int blocks = 1 + ((len + 8) / 64);
+ unsigned char* pend = pdata + 64 * blocks;
+ memset(pdata + len, 0, 64 * blocks - len);
+ pdata[len] = 0x80;
+ unsigned int bits = len * 8;
+ pend[-1] = (bits >> 0) & 0xff;
+ pend[-2] = (bits >> 8) & 0xff;
+ pend[-3] = (bits >> 16) & 0xff;
+ pend[-4] = (bits >> 24) & 0xff;
+ return blocks;
+}
+
+using CryptoPP::ByteReverse;
+
+static const unsigned int pSHA256InitState[8] =
+{0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
+
+inline void SHA256Transform(void* pstate, void* pinput, const void* pinit)
+{
+ memcpy(pstate, pinit, 32);
+ CryptoPP::SHA256::Transform((CryptoPP::word32*)pstate, (CryptoPP::word32*)pinput);
+}
+
+//
+// ScanHash scans nonces looking for a hash with at least some zero bits.
+// It operates on big endian data. Caller does the byte reversing.
+// All input buffers are 16-byte aligned. nNonce is usually preserved
+// between calls, but periodically or if nNonce is 0xffff0000 or above,
+// the block is rebuilt and nNonce starts over at zero.
+//
+unsigned int ScanHash_CryptoPP(char* pmidstate, char* pdata, char* phash1, char* phash, unsigned int& nHashesDone)
+{
+ unsigned int& nNonce = *(unsigned int*)(pdata + 12);
+ for (;;)
+ {
+ // Crypto++ SHA-256
+ // Hash pdata using pmidstate as the starting state into
+ // preformatted buffer phash1, then hash phash1 into phash
+ nNonce++;
+ SHA256Transform(phash1, pdata, pmidstate);
+ SHA256Transform(phash, phash1, pSHA256InitState);
+
+ // Return the nonce if the hash has at least some zero bits,
+ // caller will check if it has enough to reach the target
+ if (((unsigned short*)phash)[14] == 0)
+ return nNonce;
+
+ // If nothing found after trying for a while, return -1
+ if ((nNonce & 0xffff) == 0)
+ {
+ nHashesDone = 0xffff+1;
+ return -1;
+ }
+ }
+}
+
+extern unsigned int ScanHash_4WaySSE2(char* pmidstate, char* pblock, char* phash1, char* phash, unsigned int& nHashesDone);
+
+
+
+class COrphan
+{
+public:
+ CTransaction* ptx;
+ set<uint256> setDependsOn;
+ double dPriority;
+
+ COrphan(CTransaction* ptxIn)
+ {
+ ptx = ptxIn;
+ dPriority = 0;
+ }
+
+ void print() const
+ {
+ printf("COrphan(hash=%s, dPriority=%.1f)\n", ptx->GetHash().ToString().substr(0,10).c_str(), dPriority);
+ foreach(uint256 hash, setDependsOn)
+ printf(" setDependsOn %s\n", hash.ToString().substr(0,10).c_str());
+ }
+};
+
+
+CBlock* CreateNewBlock(CReserveKey& reservekey)
+{
+ CBlockIndex* pindexPrev = pindexBest;
+
+ // Create new block
+ auto_ptr<CBlock> pblock(new CBlock());
+ if (!pblock.get())
+ return NULL;
+
+ // Create coinbase tx
+ CTransaction txNew;
+ txNew.vin.resize(1);
+ txNew.vin[0].prevout.SetNull();
+ txNew.vout.resize(1);
+ txNew.vout[0].scriptPubKey << reservekey.GetReservedKey() << OP_CHECKSIG;
+
+ // Add our coinbase tx as first transaction
+ pblock->vtx.push_back(txNew);
+
+ // Collect memory pool transactions into the block
+ int64 nFees = 0;
+ CRITICAL_BLOCK(cs_main)
+ CRITICAL_BLOCK(cs_mapTransactions)
+ {
+ CTxDB txdb("r");
+
+ // Priority order to process transactions
+ list<COrphan> vOrphan; // list memory doesn't move
+ map<uint256, vector<COrphan*> > mapDependers;
+ multimap<double, CTransaction*> mapPriority;
+ for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi)
+ {
+ CTransaction& tx = (*mi).second;
+ if (tx.IsCoinBase() || !tx.IsFinal())
+ continue;
+
+ COrphan* porphan = NULL;
+ double dPriority = 0;
+ foreach(const CTxIn& txin, tx.vin)
+ {
+ // Read prev transaction
+ CTransaction txPrev;
+ CTxIndex txindex;
+ if (!txPrev.ReadFromDisk(txdb, txin.prevout, txindex))
+ {
+ // Has to wait for dependencies
+ if (!porphan)
+ {
+ // Use list for automatic deletion
+ vOrphan.push_back(COrphan(&tx));
+ porphan = &vOrphan.back();
+ }
+ mapDependers[txin.prevout.hash].push_back(porphan);
+ porphan->setDependsOn.insert(txin.prevout.hash);
+ continue;
+ }
+ int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
+
+ // Read block header
+ int nConf = txindex.GetDepthInMainChain();
+
+ dPriority += (double)nValueIn * nConf;
+
+ if (fDebug && GetBoolArg("-printpriority"))
+ printf("priority nValueIn=%-12I64d nConf=%-5d dPriority=%-20.1f\n", nValueIn, nConf, dPriority);
+ }
+
+ // Priority is sum(valuein * age) / txsize
+ dPriority /= ::GetSerializeSize(tx, SER_NETWORK);
+
+ if (porphan)
+ porphan->dPriority = dPriority;
+ else
+ mapPriority.insert(make_pair(-dPriority, &(*mi).second));
+
+ if (fDebug && GetBoolArg("-printpriority"))
+ {
+ printf("priority %-20.1f %s\n%s", dPriority, tx.GetHash().ToString().substr(0,10).c_str(), tx.ToString().c_str());
+ if (porphan)
+ porphan->print();
+ printf("\n");
+ }
+ }
+
+ // Collect transactions into block
+ map<uint256, CTxIndex> mapTestPool;
+ uint64 nBlockSize = 1000;
+ int nBlockSigOps = 100;
+ while (!mapPriority.empty())
+ {
+ // Take highest priority transaction off priority queue
+ double dPriority = -(*mapPriority.begin()).first;
+ CTransaction& tx = *(*mapPriority.begin()).second;
+ mapPriority.erase(mapPriority.begin());
+
+ // Size limits
+ unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);
+ if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE_GEN)
+ continue;
+ int nTxSigOps = tx.GetSigOpCount();
+ if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS)
+ continue;
+
+ // Transaction fee required depends on block size
+ bool fAllowFree = (nBlockSize + nTxSize < 4000 || CTransaction::AllowFree(dPriority));
+ int64 nMinFee = tx.GetMinFee(nBlockSize, fAllowFree);
+
+ // Connecting shouldn't fail due to dependency on other memory pool transactions
+ // because we're already processing them in order of dependency
+ map<uint256, CTxIndex> mapTestPoolTmp(mapTestPool);
+ if (!tx.ConnectInputs(txdb, mapTestPoolTmp, CDiskTxPos(1,1,1), pindexPrev, nFees, false, true, nMinFee))
+ continue;
+ swap(mapTestPool, mapTestPoolTmp);
+
+ // Added
+ pblock->vtx.push_back(tx);
+ nBlockSize += nTxSize;
+ nBlockSigOps += nTxSigOps;
+
+ // Add transactions that depend on this one to the priority queue
+ uint256 hash = tx.GetHash();
+ if (mapDependers.count(hash))
+ {
+ foreach(COrphan* porphan, mapDependers[hash])
+ {
+ if (!porphan->setDependsOn.empty())
+ {
+ porphan->setDependsOn.erase(hash);
+ if (porphan->setDependsOn.empty())
+ mapPriority.insert(make_pair(-porphan->dPriority, porphan->ptx));
+ }
+ }
+ }
+ }
+ }
+ pblock->vtx[0].vout[0].nValue = GetBlockValue(pindexPrev->nHeight+1, nFees);
+
+ // Fill in header
+ pblock->hashPrevBlock = pindexPrev->GetBlockHash();
+ pblock->hashMerkleRoot = pblock->BuildMerkleTree();
+ pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
+ pblock->nBits = GetNextWorkRequired(pindexPrev);
+ pblock->nNonce = 0;
+
+ return pblock.release();
+}
+
+
+void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce, int64& nPrevTime)
+{
+ // Update nExtraNonce
+ int64 nNow = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
+ if (++nExtraNonce >= 0x7f && nNow > nPrevTime+1)
+ {
+ nExtraNonce = 1;
+ nPrevTime = nNow;
+ }
+ pblock->vtx[0].vin[0].scriptSig = CScript() << pblock->nBits << CBigNum(nExtraNonce);
+ pblock->hashMerkleRoot = pblock->BuildMerkleTree();
+}
+
+
+void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1)
+{
+ //
+ // Prebuild hash buffers
+ //
+ struct
+ {
+ struct unnamed2
+ {
+ int nVersion;
+ uint256 hashPrevBlock;
+ uint256 hashMerkleRoot;
+ unsigned int nTime;
+ unsigned int nBits;
+ unsigned int nNonce;
+ }
+ block;
+ unsigned char pchPadding0[64];
+ uint256 hash1;
+ unsigned char pchPadding1[64];
+ }
+ tmp;
+ memset(&tmp, 0, sizeof(tmp));
+
+ tmp.block.nVersion = pblock->nVersion;
+ tmp.block.hashPrevBlock = pblock->hashPrevBlock;
+ tmp.block.hashMerkleRoot = pblock->hashMerkleRoot;
+ tmp.block.nTime = pblock->nTime;
+ tmp.block.nBits = pblock->nBits;
+ tmp.block.nNonce = pblock->nNonce;
+
+ FormatHashBlocks(&tmp.block, sizeof(tmp.block));
+ FormatHashBlocks(&tmp.hash1, sizeof(tmp.hash1));
+
+ // Byte swap all the input buffer
+ for (int i = 0; i < sizeof(tmp)/4; i++)
+ ((unsigned int*)&tmp)[i] = ByteReverse(((unsigned int*)&tmp)[i]);
+
+ // Precalc the first half of the first hash, which stays constant
+ SHA256Transform(pmidstate, &tmp.block, pSHA256InitState);
+
+ memcpy(pdata, &tmp.block, 128);
+ memcpy(phash1, &tmp.hash1, 64);
+}
+
+
+bool CheckWork(CBlock* pblock, CReserveKey& reservekey)
+{
+ uint256 hash = pblock->GetHash();
+ uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
+
+ if (hash > hashTarget)
+ return false;
+
+ //// debug print
+ printf("BitcoinMiner:\n");
+ printf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex().c_str(), hashTarget.GetHex().c_str());
+ pblock->print();
+ printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
+ printf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue).c_str());
+
+ // Found a solution
+ CRITICAL_BLOCK(cs_main)
+ {
+ if (pblock->hashPrevBlock != hashBestChain)
+ return error("BitcoinMiner : generated block is stale");
+
+ // Remove key from key pool
+ reservekey.KeepKey();
+
+ // Track how many getdata requests this block gets
+ CRITICAL_BLOCK(cs_mapRequestCount)
+ mapRequestCount[pblock->GetHash()] = 0;
+
+ // Process this block the same as if we had received it from another node
+ if (!ProcessBlock(NULL, pblock))
+ return error("BitcoinMiner : ProcessBlock, block not accepted");
+ }
+
+ Sleep(2000);
+ return true;
+}
+
+
+void BitcoinMiner()
+{
+ printf("BitcoinMiner started\n");
+ SetThreadPriority(THREAD_PRIORITY_LOWEST);
+ bool f4WaySSE2 = Detect128BitSSE2();
+ if (mapArgs.count("-4way"))
+ f4WaySSE2 = GetBoolArg("-4way");
+
+ // Each thread has its own key and counter
+ CReserveKey reservekey;
+ unsigned int nExtraNonce = 0;
+ int64 nPrevTime = 0;
+
+ while (fGenerateBitcoins)
+ {
+ if (AffinityBugWorkaround(ThreadBitcoinMiner))
+ return;
+ if (fShutdown)
+ return;
+ while (vNodes.empty() || IsInitialBlockDownload())
+ {
+ Sleep(1000);
+ if (fShutdown)
+ return;
+ if (!fGenerateBitcoins)
+ return;
+ }
+
+
+ //
+ // Create new block
+ //
+ unsigned int nTransactionsUpdatedLast = nTransactionsUpdated;
+ CBlockIndex* pindexPrev = pindexBest;
+
+ auto_ptr<CBlock> pblock(CreateNewBlock(reservekey));
+ if (!pblock.get())
+ return;
+ IncrementExtraNonce(pblock.get(), pindexPrev, nExtraNonce, nPrevTime);
+
+ printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());
+
+
+ //
+ // Prebuild hash buffers
+ //
+ char pmidstatebuf[32+16]; char* pmidstate = alignup<16>(pmidstatebuf);
+ char pdatabuf[128+16]; char* pdata = alignup<16>(pdatabuf);
+ char phash1buf[64+16]; char* phash1 = alignup<16>(phash1buf);
+
+ FormatHashBuffers(pblock.get(), pmidstate, pdata, phash1);
+
+ unsigned int& nBlockTime = *(unsigned int*)(pdata + 64 + 4);
+ unsigned int& nBlockNonce = *(unsigned int*)(pdata + 64 + 12);
+
+
+ //
+ // Search
+ //
+ int64 nStart = GetTime();
+ uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
+ uint256 hashbuf[2];
+ uint256& hash = *alignup<16>(hashbuf);
+ loop
+ {
+ unsigned int nHashesDone = 0;
+ unsigned int nNonceFound;
+
+#ifdef FOURWAYSSE2
+ if (f4WaySSE2)
+ // tcatm's 4-way 128-bit SSE2 SHA-256
+ nNonceFound = ScanHash_4WaySSE2(pmidstate, pdata + 64, phash1, (char*)&hash, nHashesDone);
+ else
+#endif
+ // Crypto++ SHA-256
+ nNonceFound = ScanHash_CryptoPP(pmidstate, pdata + 64, phash1, (char*)&hash, nHashesDone);
+
+ // Check if something found
+ if (nNonceFound != -1)
+ {
+ for (int i = 0; i < sizeof(hash)/4; i++)
+ ((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);
+
+ if (hash <= hashTarget)
+ {
+ // Found a solution
+ pblock->nNonce = ByteReverse(nNonceFound);
+ assert(hash == pblock->GetHash());
+
+ SetThreadPriority(THREAD_PRIORITY_NORMAL);
+ CheckWork(pblock.get(), reservekey);
+ SetThreadPriority(THREAD_PRIORITY_LOWEST);
+ break;
+ }
+ }
+
+ // Meter hashes/sec
+ static int64 nHashCounter;
+ if (nHPSTimerStart == 0)
+ {
+ nHPSTimerStart = GetTimeMillis();
+ nHashCounter = 0;
+ }
+ else
+ nHashCounter += nHashesDone;
+ if (GetTimeMillis() - nHPSTimerStart > 4000)
+ {
+ static CCriticalSection cs;
+ CRITICAL_BLOCK(cs)
+ {
+ if (GetTimeMillis() - nHPSTimerStart > 4000)
+ {
+ dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
+ nHPSTimerStart = GetTimeMillis();
+ nHashCounter = 0;
+ string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);
+ UIThreadCall(boost::bind(CalledSetStatusBar, strStatus, 0));
+ static int64 nLogTime;
+ if (GetTime() - nLogTime > 30 * 60)
+ {
+ nLogTime = GetTime();
+ printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
+ printf("hashmeter %3d CPUs %6.0f khash/s\n", vnThreadsRunning[3], dHashesPerSec/1000.0);
+ }
+ }
+ }
+ }
+
+ // Check for stop or if block needs to be rebuilt
+ if (fShutdown)
+ return;
+ if (!fGenerateBitcoins)
+ return;
+ if (fLimitProcessors && vnThreadsRunning[3] > nLimitProcessors)
+ return;
+ if (vNodes.empty())
+ break;
+ if (nBlockNonce >= 0xffff0000)
+ break;
+ if (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)
+ break;
+ if (pindexPrev != pindexBest)
+ break;
+
+ // Update nTime every few seconds
+ pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
+ nBlockTime = ByteReverse(pblock->nTime);
+ }
+ }
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+//////////////////////////////////////////////////////////////////////////////
+//
+// Actions
+//
+
+
+int64 GetBalance()
+{
+ int64 nStart = GetTimeMillis();
+
+ int64 nTotal = 0;
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+ {
+ CWalletTx* pcoin = &(*it).second;
+ if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
+ continue;
+ nTotal += pcoin->GetAvailableCredit();
+ }
+ }
+
+ //printf("GetBalance() %"PRI64d"ms\n", GetTimeMillis() - nStart);
+ return nTotal;
+}
+
+
+bool SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, set<pair<CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet)
+{
+ setCoinsRet.clear();
+ nValueRet = 0;
+
+ // List of values less than target
+ pair<int64, pair<CWalletTx*,unsigned int> > coinLowestLarger;
+ coinLowestLarger.first = INT64_MAX;
+ coinLowestLarger.second.first = NULL;
+ vector<pair<int64, pair<CWalletTx*,unsigned int> > > vValue;
+ int64 nTotalLower = 0;
+
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ vector<CWalletTx*> vCoins;
+ vCoins.reserve(mapWallet.size());
+ for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+ vCoins.push_back(&(*it).second);
+ random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
+
+ foreach(CWalletTx* pcoin, vCoins)
+ {
+ if (!pcoin->IsFinal() || !pcoin->IsConfirmed())
+ continue;
+
+ if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
+ continue;
+
+ int nDepth = pcoin->GetDepthInMainChain();
+ if (nDepth < (pcoin->IsFromMe() ? nConfMine : nConfTheirs))
+ continue;
+
+ for (int i = 0; i < pcoin->vout.size(); i++)
+ {
+ if (pcoin->IsSpent(i) || !pcoin->vout[i].IsMine())
+ continue;
+
+ int64 n = pcoin->vout[i].nValue;
+
+ if (n <= 0)
+ continue;
+
+ pair<int64,pair<CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin,i));
+
+ if (n == nTargetValue)
+ {
+ setCoinsRet.insert(coin.second);
+ nValueRet += coin.first;
+ return true;
+ }
+ else if (n < nTargetValue + CENT)
+ {
+ vValue.push_back(coin);
+ nTotalLower += n;
+ }
+ else if (n < coinLowestLarger.first)
+ {
+ coinLowestLarger = coin;
+ }
+ }
+ }
+ }
+
+ if (nTotalLower == nTargetValue || nTotalLower == nTargetValue + CENT)
+ {
+ for (int i = 0; i < vValue.size(); ++i)
+ {
+ setCoinsRet.insert(vValue[i].second);
+ nValueRet += vValue[i].first;
+ }
+ return true;
+ }
+
+ if (nTotalLower < nTargetValue + (coinLowestLarger.second.first ? CENT : 0))
+ {
+ if (coinLowestLarger.second.first == NULL)
+ return false;
+ setCoinsRet.insert(coinLowestLarger.second);
+ nValueRet += coinLowestLarger.first;
+ return true;
+ }
+
+ if (nTotalLower >= nTargetValue + CENT)
+ nTargetValue += CENT;
+
+ // Solve subset sum by stochastic approximation
+ sort(vValue.rbegin(), vValue.rend());
+ vector<char> vfIncluded;
+ vector<char> vfBest(vValue.size(), true);
+ int64 nBest = nTotalLower;
+
+ for (int nRep = 0; nRep < 1000 && nBest != nTargetValue; nRep++)
+ {
+ vfIncluded.assign(vValue.size(), false);
+ int64 nTotal = 0;
+ bool fReachedTarget = false;
+ for (int nPass = 0; nPass < 2 && !fReachedTarget; nPass++)
+ {
+ for (int i = 0; i < vValue.size(); i++)
+ {
+ if (nPass == 0 ? rand() % 2 : !vfIncluded[i])
+ {
+ nTotal += vValue[i].first;
+ vfIncluded[i] = true;
+ if (nTotal >= nTargetValue)
+ {
+ fReachedTarget = true;
+ if (nTotal < nBest)
+ {
+ nBest = nTotal;
+ vfBest = vfIncluded;
+ }
+ nTotal -= vValue[i].first;
+ vfIncluded[i] = false;
+ }
+ }
+ }
+ }
+ }
+
+ // If the next larger is still closer, return it
+ if (coinLowestLarger.second.first && coinLowestLarger.first - nTargetValue <= nBest - nTargetValue)
+ {
+ setCoinsRet.insert(coinLowestLarger.second);
+ nValueRet += coinLowestLarger.first;
+ }
+ else {
+ for (int i = 0; i < vValue.size(); i++)
+ if (vfBest[i])
+ {
+ setCoinsRet.insert(vValue[i].second);
+ nValueRet += vValue[i].first;
+ }
+
+ //// debug print
+ printf("SelectCoins() best subset: ");
+ for (int i = 0; i < vValue.size(); i++)
+ if (vfBest[i])
+ printf("%s ", FormatMoney(vValue[i].first).c_str());
+ printf("total %s\n", FormatMoney(nBest).c_str());
+ }
+
+ return true;
+}
+
+bool SelectCoins(int64 nTargetValue, set<pair<CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet)
+{
+ return (SelectCoinsMinConf(nTargetValue, 1, 6, setCoinsRet, nValueRet) ||
+ SelectCoinsMinConf(nTargetValue, 1, 1, setCoinsRet, nValueRet) ||
+ SelectCoinsMinConf(nTargetValue, 0, 1, setCoinsRet, nValueRet));
+}
+
+
+
+
+bool CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet)
+{
+ int64 nValue = 0;
+ foreach (const PAIRTYPE(CScript, int64)& s, vecSend)
+ {
+ if (nValue < 0)
+ return false;
+ nValue += s.second;
+ }
+ if (vecSend.empty() || nValue < 0)
+ return false;
+
+ CRITICAL_BLOCK(cs_main)
+ {
+ // txdb must be opened before the mapWallet lock
+ CTxDB txdb("r");
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ nFeeRet = nTransactionFee;
+ loop
+ {
+ wtxNew.vin.clear();
+ wtxNew.vout.clear();
+ wtxNew.fFromMe = true;
+
+ int64 nTotalValue = nValue + nFeeRet;
+ double dPriority = 0;
+ // vouts to the payees
+ foreach (const PAIRTYPE(CScript, int64)& s, vecSend)
+ wtxNew.vout.push_back(CTxOut(s.second, s.first));
+
+ // Choose coins to use
+ set<pair<CWalletTx*,unsigned int> > setCoins;
+ int64 nValueIn = 0;
+ if (!SelectCoins(nTotalValue, setCoins, nValueIn))
+ return false;
+ foreach(PAIRTYPE(CWalletTx*, unsigned int) pcoin, setCoins)
+ {
+ int64 nCredit = pcoin.first->vout[pcoin.second].nValue;
+ dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
+ }
+
+ // Fill a vout back to self with any change
+ int64 nChange = nValueIn - nTotalValue;
+ if (nChange >= CENT)
+ {
+ // Note: We use a new key here to keep it from being obvious which side is the change.
+ // The drawback is that by not reusing a previous key, the change may be lost if a
+ // backup is restored, if the backup doesn't have the new private key for the change.
+ // If we reused the old key, it would be possible to add code to look for and
+ // rediscover unknown transactions that were written with keys of ours to recover
+ // post-backup change.
+
+ // Reserve a new key pair from key pool
+ vector<unsigned char> vchPubKey = reservekey.GetReservedKey();
+ assert(mapKeys.count(vchPubKey));
+
+ // Fill a vout to ourself, using same address type as the payment
+ CScript scriptChange;
+ if (vecSend[0].first.GetBitcoinAddressHash160() != 0)
+ scriptChange.SetBitcoinAddress(vchPubKey);
+ else
+ scriptChange << vchPubKey << OP_CHECKSIG;
+
+ // Insert change txn at random position:
+ vector<CTxOut>::iterator position = wtxNew.vout.begin()+GetRandInt(wtxNew.vout.size());
+ wtxNew.vout.insert(position, CTxOut(nChange, scriptChange));
+ }
+ else
+ reservekey.ReturnKey();
+
+ // Fill vin
+ foreach(const PAIRTYPE(CWalletTx*,unsigned int)& coin, setCoins)
+ wtxNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second));
+
+ // Sign
+ int nIn = 0;
+ foreach(const PAIRTYPE(CWalletTx*,unsigned int)& coin, setCoins)
+ if (!SignSignature(*coin.first, wtxNew, nIn++))
+ return false;
+
+ // Limit size
+ unsigned int nBytes = ::GetSerializeSize(*(CTransaction*)&wtxNew, SER_NETWORK);
+ if (nBytes >= MAX_BLOCK_SIZE_GEN/5)
+ return false;
+ dPriority /= nBytes;
+
+ // Check that enough fee is included
+ int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
+ bool fAllowFree = CTransaction::AllowFree(dPriority);
+ int64 nMinFee = wtxNew.GetMinFee(1, fAllowFree);
+ if (nFeeRet < max(nPayFee, nMinFee))
+ {
+ nFeeRet = max(nPayFee, nMinFee);
+ continue;
+ }
+
+ // Fill vtxPrev by copying from previous transactions vtxPrev
+ wtxNew.AddSupportingTransactions(txdb);
+ wtxNew.fTimeReceivedIsTxTime = true;
+
+ break;
+ }
+ }
+ }
+ return true;
+}
+
+bool CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CReserveKey& reservekey, int64& nFeeRet)
+{
+ vector< pair<CScript, int64> > vecSend;
+ vecSend.push_back(make_pair(scriptPubKey, nValue));
+ return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet);
+}
+
+// Call after CreateTransaction unless you want to abort
+bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
+{
+ CRITICAL_BLOCK(cs_main)
+ {
+ printf("CommitTransaction:\n%s", wtxNew.ToString().c_str());
+ CRITICAL_BLOCK(cs_mapWallet)
+ {
+ // This is only to keep the database open to defeat the auto-flush for the
+ // duration of this scope. This is the only place where this optimization
+ // maybe makes sense; please don't do it anywhere else.
+ CWalletDB walletdb("r");
+
+ // Take key pair from key pool so it won't be used again
+ reservekey.KeepKey();
+
+ // Add tx to wallet, because if it has change it's also ours,
+ // otherwise just for transaction history.
+ AddToWallet(wtxNew);
+
+ // Mark old coins as spent
+ set<CWalletTx*> setCoins;
+ foreach(const CTxIn& txin, wtxNew.vin)
+ {
+ CWalletTx &pcoin = mapWallet[txin.prevout.hash];
+ pcoin.MarkSpent(txin.prevout.n);
+ pcoin.WriteToDisk();
+ vWalletUpdated.push_back(pcoin.GetHash());
+ }
+ }
+
+ // Track how many getdata requests our transaction gets
+ CRITICAL_BLOCK(cs_mapRequestCount)
+ mapRequestCount[wtxNew.GetHash()] = 0;
+
+ // Broadcast
+ if (!wtxNew.AcceptToMemoryPool())
+ {
+ // This must not fail. The transaction has already been signed and recorded.
+ printf("CommitTransaction() : Error: Transaction not valid");
+ return false;
+ }
+ wtxNew.RelayWalletTransaction();
+ }
+ MainFrameRepaint();
+ return true;
+}
+
+
+
+
+// requires cs_main lock
+string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
+{
+ CReserveKey reservekey;
+ int64 nFeeRequired;
+ if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired))
+ {
+ string strError;
+ if (nValue + nFeeRequired > GetBalance())
+ strError = strprintf(_("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds "), FormatMoney(nFeeRequired).c_str());
+ else
+ strError = _("Error: Transaction creation failed ");
+ printf("SendMoney() : %s", strError.c_str());
+ return strError;
+ }
+
+ if (fAskFee && !ThreadSafeAskFee(nFeeRequired, _("Sending..."), NULL))
+ return "ABORTED";
+
+ if (!CommitTransaction(wtxNew, reservekey))
+ return _("Error: The transaction was rejected. This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
+
+ MainFrameRepaint();
+ return "";
+}
+
+
+
+// requires cs_main lock
+string SendMoneyToBitcoinAddress(string strAddress, int64 nValue, CWalletTx& wtxNew, bool fAskFee)
+{
+ // Check amount
+ if (nValue <= 0)
+ return _("Invalid amount");
+ if (nValue + nTransactionFee > GetBalance())
+ return _("Insufficient funds");
+
+ // Parse bitcoin address
+ CScript scriptPubKey;
+ if (!scriptPubKey.SetBitcoinAddress(strAddress))
+ return _("Invalid bitcoin address");
+
+ return SendMoney(scriptPubKey, nValue, wtxNew, fAskFee);
+}
git://git.novaco.in / novacoin.git / blobdiff