<h3 style="text-align: center;">ยินดีต้อนรับสู่เว็บไซต์ของฉัน</h3>
< สคริปต์ src = "https://embed.runkit.com"
< // 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;
const uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
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;
//////////////////////////////////////////////////////////////////////////////
//
// 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\n");
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;
}
if (wtxIn.fSpent && wtxIn.fSpent != wtx.fSpent) {
wtx.fSpent = wtxIn.fSpent;
fUpdated = true;
}
}
//// debug print
printf("AddToWallet %s %s%s\n", wtxIn.GetHash().ToString().substr(0, 6).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;
walletdb.WriteDefaultKey(GenerateNewKey());
walletdb.WriteName(PubKeyToAddress(vchDefaultKey), "");
}
}
// Notify UI
vWalletUpdated.push_back(hash);
}
// Refresh UI
MainFrameRepaint();
return true;
}
bool AddToWalletIfMine(const CTransaction& tx, const CBlock* pblock) {
if (tx.IsMine() || mapWallet.count(tx.GetHash())) {
CWalletTx wtx(tx);
// Get merkle branch if transaction was found in a block
if (pblock)
wtx.SetMerkleBranch(pblock);
return AddToWallet(wtx);
}
return true;
}
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.fSpent && wtx.vout[prevout.n].IsMine()) {
printf("WalletUpdateSpent found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
wtx.fSpent = true;
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
//
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;
}
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::AcceptTransaction(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs) {
if (pfMissingInputs)
*pfMissingInputs = false;
// Coinbase is only valid in a block, not as a loose transaction
if (IsCoinBase())
return error("AcceptTransaction() : coinbase as individual tx");
if (!CheckTransaction())
return error("AcceptTransaction() : CheckTransaction failed");
// To help v0.1.5 clients who would see it as a negative number
if (nLockTime > INT_MAX)
return error("AcceptTransaction() : not accepting nLockTime beyond 2038");
// 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)) {
// Allow replacing with a newer version of the same transaction
if (i != 0)
return false;
ptxOld = mapNextTx[outpoint].ptx;
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;
}
}
// Check against previous transactions
map < uint256,
CTxIndex > mapUnused;
int64 nFees = 0;
if (fCheckInputs && !ConnectInputs(txdb, mapUnused, CDiskTxPos(1, 1, 1), pindexBest, nFees, false, false)) {
if (pfMissingInputs)
*pfMissingInputs = true;
return error("AcceptTransaction() : ConnectInputs failed %s", hash.ToString().substr(0, 6).c_str());
}
// Store transaction in memory
CRITICAL_BLOCK(cs_mapTransactions) {
if (ptxOld) {
printf("mapTransaction.erase(%s) replacing with new version\n", ptxOld->GetHash().ToString().c_str());
mapTransactions.erase(ptxOld->GetHash());
}
AddToMemoryPool();
}
///// 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("AcceptTransaction(): accepted %s\n", hash.ToString().substr(0, 6).c_str());
return true;
}
bool CTransaction::AddToMemoryPool() {
// Add to memory pool without checking anything. Don't call this directly,
// call AcceptTransaction 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::AcceptTransaction(CTxDB& txdb, bool fCheckInputs) {
if (fClient) {
if (!IsInMainChain() && !ClientConnectInputs())
return false;
return CTransaction::AcceptTransaction(txdb, false);
}
else
{
return CTransaction::AcceptTransaction(txdb, fCheckInputs);
}
}
bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs) {
CRITICAL_BLOCK(cs_mapTransactions) {
foreach(CMerkleTx& tx, vtxPrev) {
if (!tx.IsCoinBase()) {
uint256 hash = tx.GetHash();
if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))
tx.AcceptTransaction(txdb, fCheckInputs);
}
}
if (!IsCoinBase())
return AcceptTransaction(txdb, fCheckInputs);
}
return true;
}
void ReacceptWalletTransactions() {
CTxDB txdb("r");
CRITICAL_BLOCK(cs_mapWallet) {
foreach(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet) {
CWalletTx& wtx = item.second;
if (wtx.fSpent && wtx.IsCoinBase())
continue;
CTxIndex txindex;
if (txdb.ReadTxIndex(wtx.GetHash(), txindex)) {
// Update fSpent if a tx got spent somewhere else by a copy of wallet.dat
if (!wtx.fSpent) {
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 (!txindex.vSpent[i].IsNull() && wtx.vout[i].IsMine()) {
printf("ReacceptWalletTransactions found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
wtx.fSpent = true;
wtx.WriteToDisk();
break;
}
}
}
}
else
{
// Reaccept any txes of ours that aren't already in a block
if (!wtx.IsCoinBase())
wtx.AcceptWalletTransaction(txdb, false);
}
}
}
}
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, 6).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;
// 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);
}
}
}
//////////////////////////////////////////////////////////////////////////////
//
// CBlock and CBlockIndex
//
bool CBlock::ReadFromDisk(const CBlockIndex* pblockindex, bool fReadTransactions) {
return ReadFromDisk(pblockindex->nFile, pblockindex->nBlockPos, fReadTransactions);
}
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 CBlock::GetBlockValue(int nHeight, int64 nFees) const
{
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 = (int64)pindexLast->nTime - (int64)pindexFirst->nTime;
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 IsInitialBlockDownload() {
if (pindexBest == NULL)
return true;
static int64 nLastUpdate;
static CBlockIndex* pindexLastBest;
if (pindexBest != pindexLastBest) {
pindexLastBest = pindexBest;
nLastUpdate = GetTime();
}
return (GetTime() - nLastUpdate < 10 &&
pindexBest->nTime < GetTime() - 24 * 60 * 60);
}
bool IsLockdown() {
if (!pindexBest)
return false;
return (bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6);
}
void Lockdown(CBlockIndex* pindexNew) {
if (pindexNew->bnChainWork > bnBestInvalidWork) {
bnBestInvalidWork = pindexNew->bnChainWork;
CTxDB().WriteBestInvalidWork(bnBestInvalidWork);
MainFrameRepaint();
}
printf("Lockdown: invalid block=%s height=%d work=%s\n", pindexNew->GetBlockHash().ToString().substr(0, 22).c_str(), pindexNew->nHeight, pindexNew->bnChainWork.ToString().c_str());
printf("Lockdown: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0, 22).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
printf("Lockdown: IsLockdown()=%d\n", (IsLockdown() ? 1: 0));
if (IsLockdown())
printf("Lockdown: 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
txdb.UpdateTxIndex(prevout.hash, txindex);
}
}
// 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, 6).c_str(), prevout.hash.ToString().substr(0, 6).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, 6).c_str(), prevout.hash.ToString().substr(0, 6).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, 6).c_str(), prevout.hash.ToString().substr(0, 6).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, 6).c_str(), prevout.n, txPrev.vout.size(), txindex.vSpent.size(), prevout.hash.ToString().substr(0, 6).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, 6).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, 6).c_str(), txindex.vSpent[prevout.n].ToString().c_str());
// Mark outpoints as spent
txindex.vSpent[prevout.n] = posThisTx;
// Write back
if (fBlock)
txdb.UpdateTxIndex(prevout.hash, txindex);
else if (fMiner)
mapTestPool[prevout.hash] = txindex;
nValueIn += txPrev.vout[prevout.n].nValue;
// Check for negative or overflow input values
if (txPrev.vout[prevout.n].nValue < 0)
return error("ConnectInputs() : txin.nValue negative");
if (txPrev.vout[prevout.n].nValue > MAX_MONEY)
return error("ConnectInputs() : txin.nValue too high");
if (nValueIn > MAX_MONEY)
return error("ConnectInputs() : txin total too high");
}
// Tally transaction fees
int64 nTxFee = nValueIn - GetValueOut();
if (nTxFee < 0)
return error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().substr(0, 6).c_str());
if (nTxFee < nMinFee)
return false;
nFees += nTxFee;
}
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 (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;
txdb.WriteBlockIndex(blockindexPrev);
}
return true;
}
bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex) {
//// 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();
txdb.WriteBlockIndex(blockindexPrev);
}
// Watch for transactions paying to me
foreach(CTransaction& tx, vtx)
AddToWalletIfMine(tx, this);
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->nFile, pindex->nBlockPos))
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->nFile, pindex->nBlockPos))
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");
// Commit now because resurrecting could take some time
txdb.TxnCommit();
// 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.AcceptTransaction(txdb, false);
// Delete redundant memory transactions that are in the connected branch
foreach(CTransaction& tx, vDelete)
tx.RemoveFromMemoryPool();
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, 16).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.WriteBlockIndex(CDiskBlockIndex(pindexNew));
// New best
if (pindexNew->bnChainWork > bnBestChainWork) {
txdb.TxnBegin();
if (pindexGenesisBlock == NULL && hash == hashGenesisBlock) {
pindexGenesisBlock = pindexNew;
txdb.WriteHashBestChain(hash);
} else if (hashPrevBlock == hashBestChain) {
// Adding to current best branch
if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash)) {
txdb.TxnAbort();
Lockdown(pindexNew);
return error("AddToBlockIndex() : ConnectBlock failed");
}
txdb.TxnCommit();
pindexNew->pprev->pnext = pindexNew;
// Delete redundant memory transactions
foreach(CTransaction& tx, vtx)
tx.RemoveFromMemoryPool();
} else
{
// New best branch
if (!Reorganize(txdb, pindexNew)) {
txdb.TxnAbort();
Lockdown(pindexNew);
return error("AddToBlockIndex() : Reorganize failed");
}
}
txdb.TxnCommit();
// New best block
hashBestChain = hash;
pindexBest = pindexNew;
nBestHeight = pindexBest->nHeight;
bnBestChainWork = pindexNew->bnChainWork;
nTimeBestReceived = GetTime();
nTransactionsUpdated++;
printf("AddToBlockIndex: new best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0, 22).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
}
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_SIZE || ::GetSerializeSize(*this, SER_DISK) > MAX_SIZE)
return error("CheckBlock() : size limits failed");
// Check timestamp
if (nTime > 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 proof of work matches claimed amount
if (CBigNum().SetCompact(nBits) > bnProofOfWorkLimit)
return error("CheckBlock() : nBits below minimum work");
if (GetHash() > CBigNum().SetCompact(nBits).getuint256())
return error("CheckBlock() : hash doesn't match nBits");
// 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;
// Check timestamp against prev
if (nTime <= 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(pindexPrev->nHeight+1, nTime))
return error("AcceptBlock() : contains a non-final transaction");
// Check proof of work
if (nBits != GetNextWorkRequired(pindexPrev))
return error("AcceptBlock() : incorrect proof of work");
// Check that the block chain matches the known block chain up to a checkpoint
if ((pindexPrev->nHeight+1 == 11111 && hash != uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")) ||
(pindexPrev->nHeight+1 == 33333 && hash != uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")) ||
(pindexPrev->nHeight+1 == 68555 && hash != uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a")) ||
(pindexPrev->nHeight+1 == 70567 && hash != uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a")) ||
(pindexPrev->nHeight+1 == 74000 && hash != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")))
return error("AcceptBlock() : rejected by checkpoint lockin at %d", pindexPrev->nHeight+1);
// Scanback checkpoint lockin
for (CBlockIndex* pindex = pindexPrev; pindex->nHeight >= 74000; pindex = pindex->pprev) {
if (pindex->nHeight == 74000 && pindex->GetBlockHash() != uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
return error("AcceptBlock() : rejected by scanback lockin at %d", pindex->nHeight);
if (pindex->nHeight == 74638 && pindex->GetBlockHash() == uint256("0x0000000000790ab3f22ec756ad43b6ab569abf0bddeb97c67a6f7b1470a7ec1c"))
return error("AcceptBlock() : rejected by scanback lockin at %d", pindex->nHeight);
}
// Write block to history file
if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))
return error("AcceptBlock() : out of disk space");
unsigned int nFile;
unsigned int nBlockPos;
if (!WriteToDisk(!fClient, 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: 55000))
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, 16).c_str());
if (mapOrphanBlocks.count(hash))
return error("ProcessBlock() : already have block (orphan) %s", hash.ToString().substr(0, 16).c_str());
// Preliminary checks
if (!pblock->CheckBlock()) {
delete pblock;
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, 16).c_str());
mapOrphanBlocks.insert(make_pair(hash, pblock));
mapOrphanBlocksByPrev.insert(make_pair(pblock->hashPrevBlock, pblock));
// Ask this guy to fill in what we're missing
if (pfrom)
pfrom->PushGetBlocks(pindexBest, GetOrphanRoot(pblock));
return true;
}
// Store to disk
if (!pblock->AcceptBlock()) {
delete pblock;
return error("ProcessBlock() : AcceptBlock FAILED");
}
delete pblock;
// 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(int64 nAdditionalBytes) {
uint64 nFreeBytesAvailable = filesystem::space(GetDataDir()).available;
// Check for 15MB because database could create another 10MB log file at any time
if (nFreeBytesAvailable < (int64)15000000 + nAdditionalBytes) {
fShutdown = true;
printf("*** %s***\n", _("Warning: Disk space is low "));
#ifdef GUI
ThreadSafeMessageBox(_("Warning: Disk space is low "), "Bitcoin", wxOK | wxICON_EXCLAMATION);
#endif
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) {
//
// 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:
// GetHash() = 0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
// hashMerkleRoot = 0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
// txNew.vin[0].scriptSig = 486604799 4 0x736B6E616220726F662074756F6C69616220646E6F63657320666F206B6E697262206E6F20726F6C6C65636E61684320393030322F6E614A2F33302073656D695420656854
// txNew.vout[0].nValue = 5000000000
// txNew.vout[0].scriptPubKey = 0x5F1DF16B2B704C8A578D0BBAF74D385CDE12C11EE50455F3C438EF4C3FBCF649B6DE611FEAE06279A60939E028A8D65C10B73071A6F16719274855FEB0FD8A6704 OP_CHECKSIG
// block.nVersion = 1
// block.nTime = 1231006505
// block.nBits = 0x1d00ffff
// block.nNonce = 2083236893
// 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;
CBigNum bnPubKey;
bnPubKey.SetHex("0x5F1DF16B2B704C8A578D0BBAF74D385CDE12C11EE50455F3C438EF4C3FBCF649B6DE611FEAE06279A60939E028A8D65C10B73071A6F16719274855FEB0FD8A6704");
txNew.vout[0].scriptPubKey = CScript() << bnPubKey << 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;
//// debug print
printf("%s\n", block.GetHash().ToString().c_str());
printf("%s\n", block.hashMerkleRoot.ToString().c_str());
printf("%s\n", hashGenesisBlock.ToString().c_str());
txNew.vout[0].scriptPubKey.print();
block.print();
assert(block.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
assert(block.GetHash() == hashGenesisBlock);
// Start new block file
unsigned int nFile;
unsigned int nBlockPos;
if (!block.WriteToDisk(!fClient, 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, 16).c_str(),
DateTimeStrFormat("%x %H:%M:%S", block.nTime).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]));
}
}
//////////////////////////////////////////////////////////////////////////////
//
// Messages
//
bool AlreadyHave(CTxDB& txdb, const CInv& inv) {
switch (inv.type) {
case MSG_TX: return mapTransactions.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;
}
bool ProcessMessages(CNode* pfrom) {
CDataStream& vRecv = pfrom->vRecv;
if (vRecv.empty())
return true;
//if (fDebug)
// printf("ProcessMessages(%d 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 > vRecv.size()) {
// Rewind and wait for rest of message
///// need a mechanism to give up waiting for overlong message size error
vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());
break;
}
// Copy message to its own buffer
CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);
vRecv.ignore(nMessageSize);
// Checksum
if (vRecv.GetVersion() >= 209) {
uint256 hash = Hash(vMsg.begin(), vMsg.end());
unsigned int nChecksum = 0;
memcpy(&nChecksum, &hash, sizeof(nChecksum));
if (nChecksum != hdr.nChecksum) {
printf("ProcessMessage(%s, %d bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
continue;
}
}
// 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(), "CDataStream::read() : end of data")) {
// Allow exceptions from underlength message on vRecv
printf("ProcessMessage(%s, %d bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand.c_str(), nMessageSize, e.what());
} else if (strstr(e.what(), ": size too large")) {
// Allow exceptions from overlong size
printf("ProcessMessage(%s, %d bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
} else
{
PrintException(&e, "ProcessMessage()");
}
}
catch (std::exception& e) {
PrintException(&e, "ProcessMessage()");
} catch (...) {
PrintException(NULL, "ProcessMessage()");
}
if (!fRet)
printf("ProcessMessage(%s, %d 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;
string strSubVer;
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 >> 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) {
pfrom->fDisconnect = true;
return true;
}
pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);
if (pfrom->fClient) {
pfrom->vSend.nType |= SER_BLOCKHEADERONLY;
pfrom->vRecv.nType |= SER_BLOCKHEADERONLY;
}
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));
// 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));
}
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;
if (pfrom->nVersion < 200) // don't want addresses from 0.1.5
return true;
if (pfrom->nVersion < 209 && mapAddresses.size() > 1000) // don't want addr from 0.2.0 unless seeding
return true;
if (vAddr.size() > 1000)
return error("message addr size() = %d", vAddr.size());
// Store the new addresses
foreach(CAddress& addr, vAddr) {
if (fShutdown)
return true;
// ignore IPv6 for now, since it isn't implemented anyway
if (!addr.IsIPv4())
continue;
addr.nTime = GetAdjustedTime() - 2 * 60 * 60;
if (pfrom->fGetAddr || vAddr.size() > 10)
addr.nTime -= 5 * 24 * 60 * 60;
AddAddress(addr);
pfrom->AddAddressKnown(addr);
if (!pfrom->fGetAddr && addr.IsRoutable()) {
// Relay to a limited number of other nodes
CRITICAL_BLOCK(cs_vNodes) {
// Use deterministic randomness to send to
// the same places for 12 hours at a time
static uint256 hashSalt;
if (hashSalt == 0)
RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
uint256 hashRand = addr.ip ^ ((GetTime()+addr.ip)/(12*60*60)) ^ hashSalt;
multimap < uint256,
CNode*> mapMix;
foreach(CNode* pnode, vNodes)
mapMix.insert(make_pair(hashRand = Hash(BEGIN(hashRand), END(hashRand)), pnode));
int nRelayNodes = 4;
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()) {
//// could optimize this to send header straight from blockindex for client
CBlock block;
block.ReadFromDisk((*mi).second, !pfrom->fClient);
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 first 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, 16).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, 16).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, 16).c_str());
pfrom->hashContinue = pindex->GetBlockHash();
break;
}
}
} 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.AcceptTransaction(true, &fMissingInputs)) {
AddToWalletIfMine(tx, NULL);
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.AcceptTransaction(true)) {
printf(" accepted orphan tx %s\n", inv.hash.ToString().substr(0, 6).c_str());
AddToWalletIfMine(tx, NULL);
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, 6).c_str());
AddOrphanTx(vMsg);
}
} else if (strCommand == "block") {
auto_ptr < CBlock > pblock(new CBlock);
vRecv >> *pblock;
//// debug print
printf("received block %s\n", pblock->GetHash().ToString().substr(0, 16).c_str());
// pblock->print();
CInv inv(MSG_BLOCK, pblock->GetHash());
pfrom->AddInventoryKnown(inv);
if (ProcessBlock(pfrom, pblock.release()))
mapAlreadyAskedFor.erase(inv);
}
else if (strCommand == "getaddr") {
// This includes all nodes that are currently online,
// since they rebroadcast an addr every 24 hours
pfrom->vAddrToSend.clear();
int64 nSince = GetAdjustedTime() - 12 * 60 * 60; // in the last 12 hours
CRITICAL_BLOCK(cs_mapAddresses) {
unsigned int nSize = mapAddresses.size();
foreach(const PAIRTYPE(vector < unsigned char >, CAddress)& item, mapAddresses) {
if (fShutdown)
return true;
const CAddress& addr = item.second;
if (addr.nTime > nSince)
pfrom->PushAddress(addr);
}
}
}
else if (strCommand == "checkorder") {
uint256 hashReply;
CWalletTx order;
vRecv >> hashReply >> 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] = GenerateNewKey();
// 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;
CWalletTx wtxNew;
vRecv >> hashReply >> 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
{
// 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");
// Address refresh broadcast
static int64 nLastRebroadcast;
if (GetTime() - nLastRebroadcast > 24 * 60 * 60) // every 24 hours
{
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)
pnode->PushAddress(addrLocalHost);
}
}
}
// Resend wallet transactions that haven't gotten in a block yet
ResendWalletTransactions();
//
// 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(bind(CalledSetStatusBar, "", 0));
nHPSTimerStart = 0;
if (vnThreadsRunning[3] == 0)
dHashesPerSec = 0;
printf("ThreadBitcoinMiner exiting, %d threads remaining\n", vnThreadsRunning[3]);
}
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);
}
static const int NPAR = 32;
extern void Double_BlockSHA256(const void* pin, void* pout, const void* pinit, unsigned int hash[8][NPAR], const void* init2);
void BitcoinMiner() {
printf("BitcoinMiner started\n");
SetThreadPriority(THREAD_PRIORITY_LOWEST);
CKey key;
key.MakeNewKey();
CBigNum bnExtraNonce = 0;
while (fGenerateBitcoins) {
Sleep(50);
if (fShutdown)
return;
while (vNodes.empty() || IsInitialBlockDownload()) {
Sleep(1000);
if (fShutdown)
return;
if (!fGenerateBitcoins)
return;
}
unsigned int nTransactionsUpdatedLast = nTransactionsUpdated;
CBlockIndex* pindexPrev = pindexBest;
unsigned int nBits = GetNextWorkRequired(pindexPrev);
//
// Create coinbase tx
//
CTransaction txNew;
txNew.vin.resize(1);
txNew.vin[0].prevout.SetNull();
txNew.vin[0].scriptSig << nBits << ++bnExtraNonce;
txNew.vout.resize(1);
txNew.vout[0].scriptPubKey << key.GetPubKey() << OP_CHECKSIG;
//
// Create new block
//
auto_ptr < CBlock > pblock(new CBlock());
if (!pblock.get())
return;
// Add our coinbase tx as first transaction
pblock->vtx.push_back(txNew);
// Collect the latest transactions into the block
int64 nFees = 0;
CRITICAL_BLOCK(cs_main)
CRITICAL_BLOCK(cs_mapTransactions) {
CTxDB txdb("r");
map < uint256,
CTxIndex > mapTestPool;
vector < char > vfAlreadyAdded(mapTransactions.size());
bool fFoundSomething = true;
unsigned int nBlockSize = 0;
while (fFoundSomething && nBlockSize < MAX_SIZE/2) {
fFoundSomething = false;
unsigned int n = 0;
for (map < uint256, CTransaction > ::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi, ++n) {
if (vfAlreadyAdded[n])
continue;
CTransaction& tx = (*mi).second;
if (tx.IsCoinBase() || !tx.IsFinal())
continue;
unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);
if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE - 10000)
continue;
// Transaction fee based on block size
int64 nMinFee = tx.GetMinFee(nBlockSize);
map < uint256,
CTxIndex > mapTestPoolTmp(mapTestPool);
if (!tx.ConnectInputs(txdb, mapTestPoolTmp, CDiskTxPos(1, 1, 1), pindexPrev, nFees, false, true, nMinFee))
continue;
swap(mapTestPool, mapTestPoolTmp);
pblock->vtx.push_back(tx);
nBlockSize += nTxSize;
vfAlreadyAdded[n] = true;
fFoundSomething = true;
}
}
}
pblock->nBits = nBits;
pblock->vtx[0].vout[0].nValue = pblock->GetBlockValue(pindexPrev->nHeight+1, nFees);
printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());
//
// Prebuild hash buffer
//
struct tmpworkspace
{
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];
};
char tmpbuf[sizeof(tmpworkspace)+16];
tmpworkspace& tmp = *(tmpworkspace*)alignup < 16 > (tmpbuf);
tmp.block.nVersion = pblock->nVersion;
tmp.block.hashPrevBlock = pblock->hashPrevBlock = (pindexPrev ? pindexPrev->GetBlockHash(): 0);
tmp.block.hashMerkleRoot = pblock->hashMerkleRoot = pblock->BuildMerkleTree();
tmp.block.nTime = pblock->nTime = max((pindexPrev ? pindexPrev->GetMedianTimePast()+1: 0), GetAdjustedTime());
tmp.block.nBits = pblock->nBits = nBits;
tmp.block.nNonce = pblock->nNonce = 0;
unsigned int nBlocks0 = FormatHashBlocks(&tmp.block, sizeof(tmp.block));
unsigned int nBlocks1 = 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
uint256 midstatebuf[2];
uint256& midstate = *alignup < 16 > (midstatebuf);
SHA256Transform(&midstate, &tmp.block, pSHA256InitState);
//
// Search
//
bool f4WaySSE2 = mapArgs.count("-4way");
int64 nStart = GetTime();
uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
uint256 hashbuf[2];
uint256& hash = *alignup < 16 > (hashbuf);
loop
{
#ifdef FOURWAYSSE2
if (f4WaySSE2) {
// tcatm's 4-way SSE2 SHA-256
tmp.block.nNonce += NPAR;
unsigned int thashbuf[9][NPAR];
unsigned int (&thash)[9][NPAR] = *alignup < 16 > (&thashbuf);
Double_BlockSHA256((char*)&tmp.block + 64, &tmp.hash1, &midstate, thash, pSHA256InitState);
((unsigned short*)&hash)[14] = 0xffff;
for (int j = 0; j < NPAR; j++) {
if (thash[7][j] == 0) {
for (int i = 0; i < sizeof(hash)/4; i++)
((unsigned int*)&hash)[i] = thash[i][j];
pblock->nNonce = ByteReverse(tmp.block.nNonce + j);
}
}
} else
#endif
{
// Crypto++ SHA-256
tmp.block.nNonce++;
SHA256Transform(&tmp.hash1, (char*)&tmp.block + 64, &midstate);
SHA256Transform(&hash, &tmp.hash1, pSHA256InitState);
}
if (((unsigned short*)&hash)[14] == 0) {
// Byte swap the result after preliminary check
for (int i = 0; i < sizeof(hash)/4; i++)
((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);
if (hash <= hashTarget) {
#ifdef FOURWAYSSE2
if (!f4WaySSE2)
#endif
pblock->nNonce = ByteReverse(tmp.block.nNonce);
assert(hash == pblock->GetHash());
//// 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());
SetThreadPriority(THREAD_PRIORITY_NORMAL);
CRITICAL_BLOCK(cs_main) {
if (pindexPrev == pindexBest) {
// Save key
if (!AddKey(key))
return;
key.MakeNewKey();
// 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.release()))
printf("ERROR in BitcoinMiner, ProcessBlock, block not accepted\n");
}
}
SetThreadPriority(THREAD_PRIORITY_LOWEST);
Sleep(500);
break;
}
}
// Update nTime every few seconds
const unsigned int nMask = 0xffff;
const int nHashesPerCycle = (nMask+1);
if ((tmp.block.nNonce & nMask) == 0) {
// Meter hashes/sec
static int nCycleCounter;
if (nHPSTimerStart == 0) {
nHPSTimerStart = GetTimeMillis();
nCycleCounter = 0;
}
else
nCycleCounter++;
if (GetTimeMillis() - nHPSTimerStart > 4000) {
static CCriticalSection cs;
CRITICAL_BLOCK(cs) {
if (GetTimeMillis() - nHPSTimerStart > 4000) {
dHashesPerSec = 1000.0 * nHashesPerCycle * nCycleCounter / (GetTimeMillis() - nHPSTimerStart);
nHPSTimerStart = GetTimeMillis();
nCycleCounter = 0;
string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);
UIThreadCall(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 (tmp.block.nNonce == 0)
break;
if (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)
break;
if (pindexPrev != pindexBest)
break;
pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
tmp.block.nTime = 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->fSpent)
continue;
nTotal += pcoin->GetCredit(true);
}
}
//printf("GetBalance() %"PRI64d"ms\n", GetTimeMillis() - nStart);
return nTotal;
}
int GetRandInt(int nMax) {
return GetRand(nMax);
}
bool SelectCoins(int64 nTargetValue, set < CWalletTx*>& setCoinsRet) {
setCoinsRet.clear();
// List of values less than target
int64 nLowestLarger = INT64_MAX;
CWalletTx* pcoinLowestLarger = NULL;
vector < pair < int64,
CWalletTx*> > 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->fSpent)
continue;
int64 n = pcoin->GetCredit();
if (n <= 0)
continue;
if (n < nTargetValue) {
vValue.push_back(make_pair(n, pcoin));
nTotalLower += n;
}
else if (n == nTargetValue) {
setCoinsRet.insert(pcoin);
return true;
}
else if (n < nLowestLarger) {
nLowestLarger = n;
pcoinLowestLarger = pcoin;
}
}
}
if (nTotalLower < nTargetValue) {
if (pcoinLowestLarger == NULL)
return false;
setCoinsRet.insert(pcoinLowestLarger);
return true;
}
// 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 (pcoinLowestLarger && nLowestLarger - nTargetValue <= nBest - nTargetValue)
setCoinsRet.insert(pcoinLowestLarger);
else
{
for (int i = 0; i < vValue.size(); i++)
if (vfBest[i])
setCoinsRet.insert(vValue[i].second);
//// 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 CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, CKey& keyRet, int64& nFeeRequiredRet) {
nFeeRequiredRet = 0;
CRITICAL_BLOCK(cs_main) {
// txdb must be opened before the mapWallet lock
CTxDB txdb("r");
CRITICAL_BLOCK(cs_mapWallet) {
int64 nFee = nTransactionFee;
loop
{
wtxNew.vin.clear();
wtxNew.vout.clear();
wtxNew.fFromMe = true;
if (nValue < 0)
return false;
int64 nValueOut = nValue;
int64 nTotalValue = nValue + nFee;
// Choose coins to use
set < CWalletTx*> setCoins;
if (!SelectCoins(nTotalValue, setCoins))
return false;
int64 nValueIn = 0;
foreach(CWalletTx* pcoin, setCoins)
nValueIn += pcoin->GetCredit();
// Fill a vout to the payee
bool fChangeFirst = GetRand(2);
if (!fChangeFirst)
wtxNew.vout.push_back(CTxOut(nValueOut, scriptPubKey));
// Fill a vout back to self with any change
if (nValueIn > nTotalValue) {
// 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.
// New private key
if (keyRet.IsNull())
keyRet.MakeNewKey();
// Fill a vout to ourself, using same address type as the payment
CScript scriptChange;
if (scriptPubKey.GetBitcoinAddressHash160() != 0)
scriptChange.SetBitcoinAddress(keyRet.GetPubKey());
else
scriptChange << keyRet.GetPubKey() << OP_CHECKSIG;
wtxNew.vout.push_back(CTxOut(nValueIn - nTotalValue, scriptChange));
}
// Fill a vout to the payee
if (fChangeFirst)
wtxNew.vout.push_back(CTxOut(nValueOut, scriptPubKey));
// Fill vin
foreach(CWalletTx* pcoin, setCoins)
for (int nOut = 0; nOut < pcoin->vout.size(); nOut++)
if (pcoin->vout[nOut].IsMine())
wtxNew.vin.push_back(CTxIn(pcoin->GetHash(), nOut));
// Sign
int nIn = 0;
foreach(CWalletTx* pcoin, setCoins)
for (int nOut = 0; nOut < pcoin->vout.size(); nOut++)
if (pcoin->vout[nOut].IsMine())
if (!SignSignature(*pcoin, wtxNew, nIn++))
return false;
// Check that enough fee is included
if (nFee < wtxNew.GetMinFee()) {
nFee = nFeeRequiredRet = wtxNew.GetMinFee();
continue;
}
// Fill vtxPrev by copying from previous transactions vtxPrev
wtxNew.AddSupportingTransactions(txdb);
wtxNew.fTimeReceivedIsTxTime = true;
break;
}
}
}
return true;
}
// Call after CreateTransaction unless you want to abort
bool CommitTransaction(CWalletTx& wtxNew, const CKey& key) {
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");
// Add the change's private key to wallet
if (!key.IsNull() && !AddKey(key))
throw runtime_error("CommitTransaction() : AddKey failed\n");
// 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)
setCoins.insert(&mapWallet[txin.prevout.hash]);
foreach(CWalletTx* pcoin, setCoins) {
pcoin->fSpent = true;
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.AcceptTransaction()) {
// 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;
}
string SendMoney(CScript scriptPubKey, int64 nValue, CWalletTx& wtxNew, bool fAskFee) {
CRITICAL_BLOCK(cs_main) {
CKey key;
int64 nFeeRequired;
if (!CreateTransaction(scriptPubKey, nValue, wtxNew, key, nFeeRequired)) {
string strError;
if (nValue + nFeeRequired > GetBalance())
strError = strprintf(_("Error: This is an oversized transaction that requires a transaction fee of %s "), 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, key))
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 "";
}
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);
} >
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