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authorJaromil <jaromil@dyne.org>2011-04-23 11:49:47 +0200
committerJaromil <jaromil@dyne.org>2011-04-23 12:10:25 +0200
commit84c3fb07b0b8199c7f85c5de280e7100bad0786f (patch)
treec259ad219b95fb3d55c685062f2ba226ec0dafe7 /main.cpp
parent64ad448adc67f3c32fe0dfe074c82a8377f67ee7 (diff)
directory re-organization (keeps the old build system)
there is no internal modification of any file in this commit files are moved into directories according to established standards in sourcecode distribution; these directories contain: src - Files that are used in constructing the executable binaries, but are not installed. doc - Files in HTML and text format that document usage, quirks of the implementation, and contributor checklists. locale - Files that contain human language translation of strings used in the program contrib - Files contributed from distributions or other third party implementing scripts and auxiliary programs
Diffstat (limited to 'main.cpp')
-rw-r--r--main.cpp4104
1 files changed, 0 insertions, 4104 deletions
diff --git a/main.cpp b/main.cpp
deleted file mode 100644
index 4c8f20c1e4..0000000000
--- a/main.cpp
+++ /dev/null
@@ -1,4104 +0,0 @@
-// 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);
-}
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-02 00:10:40 +0000