genesis 1
genesis 2
genesis 3
genesis 4
genesis 5 #include "headers.h"
genesis 6 #include "checkpoints.h"
genesis 7 #include "db.h"
genesis 8 #include "net.h"
genesis 9 #include "init.h"
genesis 10 #include <boost/filesystem.hpp>
genesis 11 #include <boost/filesystem/fstream.hpp>
genesis 12
makefiles 13
makefiles 14
genesis 15 using namespace std;
genesis 16 using namespace boost;
genesis 17
genesis 18
genesis 19
genesis 20
genesis 21
programmable-vers... 22 int VERSION = DEFAULT_CLIENT_VERSION;
programmable-vers... 23
genesis 24 CCriticalSection cs_setpwalletRegistered;
genesis 25 set<CWallet*> setpwalletRegistered;
genesis 26
genesis 27 CCriticalSection cs_main;
genesis 28
genesis 29 static map<uint256, CTransaction> mapTransactions;
genesis 30 CCriticalSection cs_mapTransactions;
genesis 31 unsigned int nTransactionsUpdated = 0;
genesis 32 map<COutPoint, CInPoint> mapNextTx;
genesis 33
genesis 34 map<uint256, CBlockIndex*> mapBlockIndex;
genesis 35 uint256 hashGenesisBlock("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
genesis 36 static CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
genesis 37 CBlockIndex* pindexGenesisBlock = NULL;
genesis 38 int nBestHeight = -1;
genesis 39 CBigNum bnBestChainWork = 0;
genesis 40 CBigNum bnBestInvalidWork = 0;
genesis 41 uint256 hashBestChain = 0;
genesis 42 CBlockIndex* pindexBest = NULL;
genesis 43 int64 nTimeBestReceived = 0;
genesis 44
genesis 45 CMedianFilter<int> cPeerBlockCounts(5, 0);
genesis 46
genesis 47
genesis 48
genesis 49 double dHashesPerSec;
genesis 50 int64 nHPSTimerStart;
genesis 51
genesis 52
genesis 53 int fGenerateBitcoins = false;
genesis 54 int64 nTransactionFee = 0;
genesis 55 int fLimitProcessors = false;
genesis 56 int nLimitProcessors = 1;
genesis 57 int fMinimizeToTray = true;
genesis 58 int fMinimizeOnClose = true;
genesis 59
genesis 60
genesis 61
genesis 62
genesis 63
genesis 64
genesis 65
genesis 66
genesis 67
genesis 68
genesis 69 void RegisterWallet(CWallet* pwalletIn)
genesis 70 {
genesis 71 CRITICAL_BLOCK(cs_setpwalletRegistered)
genesis 72 {
genesis 73 setpwalletRegistered.insert(pwalletIn);
genesis 74 }
genesis 75 }
genesis 76
genesis 77 void UnregisterWallet(CWallet* pwalletIn)
genesis 78 {
genesis 79 CRITICAL_BLOCK(cs_setpwalletRegistered)
genesis 80 {
genesis 81 setpwalletRegistered.erase(pwalletIn);
genesis 82 }
genesis 83 }
genesis 84
genesis 85
genesis 86 bool static IsFromMe(CTransaction& tx)
genesis 87 {
genesis 88 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 89 if (pwallet->IsFromMe(tx))
genesis 90 return true;
genesis 91 return false;
genesis 92 }
genesis 93
genesis 94
genesis 95 bool static GetTransaction(const uint256& hashTx, CWalletTx& wtx)
genesis 96 {
genesis 97 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 98 if (pwallet->GetTransaction(hashTx,wtx))
genesis 99 return true;
genesis 100 return false;
genesis 101 }
genesis 102
genesis 103
genesis 104 void static EraseFromWallets(uint256 hash)
genesis 105 {
genesis 106 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 107 pwallet->EraseFromWallet(hash);
genesis 108 }
genesis 109
genesis 110
genesis 111 void static SyncWithWallets(const CTransaction& tx, const CBlock* pblock = NULL, bool fUpdate = false)
genesis 112 {
genesis 113 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 114 pwallet->AddToWalletIfInvolvingMe(tx, pblock, fUpdate);
genesis 115 }
genesis 116
genesis 117
genesis 118 void static SetBestChain(const CBlockLocator& loc)
genesis 119 {
genesis 120 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 121 pwallet->SetBestChain(loc);
genesis 122 }
genesis 123
genesis 124
genesis 125 void static UpdatedTransaction(const uint256& hashTx)
genesis 126 {
genesis 127 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 128 pwallet->UpdatedTransaction(hashTx);
genesis 129 }
genesis 130
genesis 131
genesis 132 void static PrintWallets(const CBlock& block)
genesis 133 {
genesis 134 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 135 pwallet->PrintWallet(block);
genesis 136 }
genesis 137
genesis 138
genesis 139 void static Inventory(const uint256& hash)
genesis 140 {
genesis 141 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 142 pwallet->Inventory(hash);
genesis 143 }
genesis 144
genesis 145
genesis 146 void static ResendWalletTransactions()
genesis 147 {
genesis 148 BOOST_FOREACH(CWallet* pwallet, setpwalletRegistered)
genesis 149 pwallet->ResendWalletTransactions();
genesis 150 }
genesis 151
genesis 152
genesis 153
genesis 154
genesis 155
genesis 156
genesis 157
genesis 158 bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout, CTxIndex& txindexRet)
genesis 159 {
genesis 160 SetNull();
genesis 161 if (!txdb.ReadTxIndex(prevout.hash, txindexRet))
genesis 162 return false;
genesis 163 if (!ReadFromDisk(txindexRet.pos))
genesis 164 return false;
genesis 165 if (prevout.n >= vout.size())
genesis 166 {
genesis 167 SetNull();
genesis 168 return false;
genesis 169 }
genesis 170 return true;
genesis 171 }
genesis 172
genesis 173 bool CTransaction::ReadFromDisk(CTxDB& txdb, COutPoint prevout)
genesis 174 {
genesis 175 CTxIndex txindex;
genesis 176 return ReadFromDisk(txdb, prevout, txindex);
genesis 177 }
genesis 178
genesis 179 bool CTransaction::ReadFromDisk(COutPoint prevout)
genesis 180 {
genesis 181 CTxDB txdb("r");
genesis 182 CTxIndex txindex;
genesis 183 return ReadFromDisk(txdb, prevout, txindex);
genesis 184 }
genesis 185
genesis 186
genesis 187
genesis 188 int CMerkleTx::SetMerkleBranch(const CBlock* pblock)
genesis 189 {
genesis 190 if (fClient)
genesis 191 {
genesis 192 if (hashBlock == 0)
genesis 193 return 0;
genesis 194 }
genesis 195 else
genesis 196 {
genesis 197 CBlock blockTmp;
genesis 198 if (pblock == NULL)
genesis 199 {
genesis 200
genesis 201 CTxIndex txindex;
genesis 202 if (!CTxDB("r").ReadTxIndex(GetHash(), txindex))
genesis 203 return 0;
genesis 204 if (!blockTmp.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos))
genesis 205 return 0;
genesis 206 pblock = &blockTmp;
genesis 207 }
genesis 208
genesis 209
genesis 210 hashBlock = pblock->GetHash();
genesis 211
genesis 212
genesis 213 for (nIndex = 0; nIndex < pblock->vtx.size(); nIndex++)
genesis 214 if (pblock->vtx[nIndex] == *(CTransaction*)this)
genesis 215 break;
genesis 216 if (nIndex == pblock->vtx.size())
genesis 217 {
genesis 218 vMerkleBranch.clear();
genesis 219 nIndex = -1;
genesis 220 printf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");
genesis 221 return 0;
genesis 222 }
genesis 223
genesis 224
genesis 225 vMerkleBranch = pblock->GetMerkleBranch(nIndex);
genesis 226 }
genesis 227
genesis 228
genesis 229 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
genesis 230 if (mi == mapBlockIndex.end())
genesis 231 return 0;
genesis 232 CBlockIndex* pindex = (*mi).second;
genesis 233 if (!pindex || !pindex->IsInMainChain())
genesis 234 return 0;
genesis 235
genesis 236 return pindexBest->nHeight - pindex->nHeight + 1;
genesis 237 }
genesis 238
genesis 239
genesis 240
genesis 241
genesis 242
genesis 243
genesis 244
genesis 245 bool CTransaction::CheckTransaction() const
genesis 246 {
genesis 247
genesis 248 if (vin.empty())
genesis 249 return DoS(10, error("CTransaction::CheckTransaction() : vin empty"));
genesis 250 if (vout.empty())
genesis 251 return DoS(10, error("CTransaction::CheckTransaction() : vout empty"));
genesis 252
genesis 253 if (::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
genesis 254 return DoS(100, error("CTransaction::CheckTransaction() : size limits failed"));
genesis 255
genesis 256
genesis 257 int64 nValueOut = 0;
genesis 258 BOOST_FOREACH(const CTxOut& txout, vout)
genesis 259 {
genesis 260 if (txout.nValue < 0)
genesis 261 return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue negative"));
genesis 262 if (txout.nValue > MAX_MONEY)
genesis 263 return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue too high"));
genesis 264 nValueOut += txout.nValue;
genesis 265 if (!MoneyRange(nValueOut))
genesis 266 return DoS(100, error("CTransaction::CheckTransaction() : txout total out of range"));
genesis 267 }
genesis 268
genesis 269
genesis 270 set<COutPoint> vInOutPoints;
genesis 271 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 272 {
genesis 273 if (vInOutPoints.count(txin.prevout))
genesis 274 return false;
genesis 275 vInOutPoints.insert(txin.prevout);
genesis 276 }
genesis 277
genesis 278 if (IsCoinBase())
genesis 279 {
genesis 280 if (vin[0].scriptSig.size() < 2 || vin[0].scriptSig.size() > 100)
genesis 281 return DoS(100, error("CTransaction::CheckTransaction() : coinbase script size"));
genesis 282 }
genesis 283 else
genesis 284 {
genesis 285 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 286 if (txin.prevout.IsNull())
genesis 287 return DoS(10, error("CTransaction::CheckTransaction() : prevout is null"));
genesis 288 }
genesis 289
genesis 290 return true;
genesis 291 }
genesis 292
genesis 293 bool CTransaction::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs, bool* pfMissingInputs)
genesis 294 {
genesis 295 if (pfMissingInputs)
genesis 296 *pfMissingInputs = false;
genesis 297
genesis 298 if (!CheckTransaction())
genesis 299 return error("AcceptToMemoryPool() : CheckTransaction failed");
genesis 300
genesis 301
genesis 302 if (IsCoinBase())
genesis 303 return DoS(100, error("AcceptToMemoryPool() : coinbase as individual tx"));
genesis 304
genesis 305
genesis 306 if ((int64)nLockTime > INT_MAX)
genesis 307 return error("AcceptToMemoryPool() : not accepting nLockTime beyond 2038 yet");
genesis 308
genesis 309
genesis 310 unsigned int nSize = ::GetSerializeSize(*this, SER_NETWORK);
genesis 311
genesis 312
genesis 313
genesis 314
genesis 315 if (GetSigOpCount() > nSize / 34 || nSize < 100)
genesis 316 return error("AcceptToMemoryPool() : transaction with out-of-bounds SigOpCount");
genesis 317
asciilifeform_let... 318
asciilifeform_let... 319 if (!IsStandard())
genesis 320 return error("AcceptToMemoryPool() : nonstandard transaction type");
genesis 321
genesis 322
genesis 323 uint256 hash = GetHash();
genesis 324 CRITICAL_BLOCK(cs_mapTransactions)
genesis 325 if (mapTransactions.count(hash))
genesis 326 return false;
genesis 327 if (fCheckInputs)
genesis 328 if (txdb.ContainsTx(hash))
genesis 329 return false;
genesis 330
genesis 331
genesis 332 CTransaction* ptxOld = NULL;
genesis 333 for (int i = 0; i < vin.size(); i++)
genesis 334 {
genesis 335 COutPoint outpoint = vin[i].prevout;
genesis 336 if (mapNextTx.count(outpoint))
genesis 337 {
genesis 338
genesis 339 return false;
genesis 340
genesis 341
genesis 342 if (i != 0)
genesis 343 return false;
genesis 344 ptxOld = mapNextTx[outpoint].ptx;
genesis 345 if (ptxOld->IsFinal())
genesis 346 return false;
genesis 347 if (!IsNewerThan(*ptxOld))
genesis 348 return false;
genesis 349 for (int i = 0; i < vin.size(); i++)
genesis 350 {
genesis 351 COutPoint outpoint = vin[i].prevout;
genesis 352 if (!mapNextTx.count(outpoint) || mapNextTx[outpoint].ptx != ptxOld)
genesis 353 return false;
genesis 354 }
genesis 355 break;
genesis 356 }
genesis 357 }
genesis 358
genesis 359 if (fCheckInputs)
genesis 360 {
genesis 361
genesis 362 map<uint256, CTxIndex> mapUnused;
genesis 363 int64 nFees = 0;
genesis 364 bool fInvalid = false;
genesis 365 if (!ConnectInputs(txdb, mapUnused, CDiskTxPos(1,1,1), pindexBest, nFees, false, false, 0, fInvalid))
genesis 366 {
genesis 367 if (fInvalid)
genesis 368 return error("AcceptToMemoryPool() : FetchInputs found invalid tx %s", hash.ToString().substr(0,10).c_str());
genesis 369 return error("AcceptToMemoryPool() : ConnectInputs failed %s", hash.ToString().substr(0,10).c_str());
genesis 370 }
genesis 371
genesis 372
genesis 373 if (nFees < GetMinFee(1000, true, true))
genesis 374 return error("AcceptToMemoryPool() : not enough fees");
genesis 375
genesis 376
genesis 377
genesis 378
genesis 379 if (nFees < MIN_RELAY_TX_FEE)
genesis 380 {
genesis 381 static CCriticalSection cs;
genesis 382 static double dFreeCount;
genesis 383 static int64 nLastTime;
genesis 384 int64 nNow = GetTime();
genesis 385
genesis 386 CRITICAL_BLOCK(cs)
genesis 387 {
genesis 388
genesis 389 dFreeCount *= pow(1.0 - 1.0/600.0, (double)(nNow - nLastTime));
genesis 390 nLastTime = nNow;
genesis 391
genesis 392
genesis 393 if (dFreeCount > GetArg("-limitfreerelay", 15)*10*1000 && !IsFromMe(*this))
genesis 394 return error("AcceptToMemoryPool() : free transaction rejected by rate limiter");
genesis 395 if (fDebug)
genesis 396 printf("Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
genesis 397 dFreeCount += nSize;
genesis 398 }
genesis 399 }
genesis 400 }
genesis 401
genesis 402
genesis 403 CRITICAL_BLOCK(cs_mapTransactions)
genesis 404 {
genesis 405 if (ptxOld)
genesis 406 {
genesis 407 printf("AcceptToMemoryPool() : replacing tx %s with new version\n", ptxOld->GetHash().ToString().c_str());
genesis 408 ptxOld->RemoveFromMemoryPool();
genesis 409 }
genesis 410 AddToMemoryPoolUnchecked();
genesis 411 }
genesis 412
genesis 413
genesis 414
genesis 415 if (ptxOld)
genesis 416 EraseFromWallets(ptxOld->GetHash());
genesis 417
genesis 418 printf("AcceptToMemoryPool(): accepted %s\n", hash.ToString().substr(0,10).c_str());
genesis 419 return true;
genesis 420 }
genesis 421
genesis 422 bool CTransaction::AcceptToMemoryPool(bool fCheckInputs, bool* pfMissingInputs)
genesis 423 {
genesis 424 CTxDB txdb("r");
genesis 425 return AcceptToMemoryPool(txdb, fCheckInputs, pfMissingInputs);
genesis 426 }
genesis 427
genesis 428 bool CTransaction::AddToMemoryPoolUnchecked()
genesis 429 {
genesis 430
genesis 431
genesis 432 CRITICAL_BLOCK(cs_mapTransactions)
genesis 433 {
genesis 434 uint256 hash = GetHash();
genesis 435 mapTransactions[hash] = *this;
genesis 436 for (int i = 0; i < vin.size(); i++)
genesis 437 mapNextTx[vin[i].prevout] = CInPoint(&mapTransactions[hash], i);
genesis 438 nTransactionsUpdated++;
genesis 439 }
genesis 440 return true;
genesis 441 }
genesis 442
genesis 443
genesis 444 bool CTransaction::RemoveFromMemoryPool()
genesis 445 {
genesis 446
genesis 447 CRITICAL_BLOCK(cs_mapTransactions)
genesis 448 {
genesis 449 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 450 mapNextTx.erase(txin.prevout);
genesis 451 mapTransactions.erase(GetHash());
genesis 452 nTransactionsUpdated++;
genesis 453 }
genesis 454 return true;
genesis 455 }
genesis 456
genesis 457
genesis 458
genesis 459
genesis 460
genesis 461
genesis 462 int CMerkleTx::GetDepthInMainChain(int& nHeightRet) const
genesis 463 {
genesis 464 if (hashBlock == 0 || nIndex == -1)
genesis 465 return 0;
genesis 466
genesis 467
genesis 468 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashBlock);
genesis 469 if (mi == mapBlockIndex.end())
genesis 470 return 0;
genesis 471 CBlockIndex* pindex = (*mi).second;
genesis 472 if (!pindex || !pindex->IsInMainChain())
genesis 473 return 0;
genesis 474
genesis 475
genesis 476 if (!fMerkleVerified)
genesis 477 {
genesis 478 if (CBlock::CheckMerkleBranch(GetHash(), vMerkleBranch, nIndex) != pindex->hashMerkleRoot)
genesis 479 return 0;
genesis 480 fMerkleVerified = true;
genesis 481 }
genesis 482
genesis 483 nHeightRet = pindex->nHeight;
genesis 484 return pindexBest->nHeight - pindex->nHeight + 1;
genesis 485 }
genesis 486
genesis 487
genesis 488 int CMerkleTx::GetBlocksToMaturity() const
genesis 489 {
genesis 490 if (!IsCoinBase())
genesis 491 return 0;
genesis 492 return max(0, (COINBASE_MATURITY+20) - GetDepthInMainChain());
genesis 493 }
genesis 494
genesis 495
genesis 496 bool CMerkleTx::AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs)
genesis 497 {
genesis 498 if (fClient)
genesis 499 {
genesis 500 if (!IsInMainChain() && !ClientConnectInputs())
genesis 501 return false;
genesis 502 return CTransaction::AcceptToMemoryPool(txdb, false);
genesis 503 }
genesis 504 else
genesis 505 {
genesis 506 return CTransaction::AcceptToMemoryPool(txdb, fCheckInputs);
genesis 507 }
genesis 508 }
genesis 509
genesis 510 bool CMerkleTx::AcceptToMemoryPool()
genesis 511 {
genesis 512 CTxDB txdb("r");
genesis 513 return AcceptToMemoryPool(txdb);
genesis 514 }
genesis 515
genesis 516
genesis 517
genesis 518 bool CWalletTx::AcceptWalletTransaction(CTxDB& txdb, bool fCheckInputs)
genesis 519 {
genesis 520 CRITICAL_BLOCK(cs_mapTransactions)
genesis 521 {
genesis 522
genesis 523 BOOST_FOREACH(CMerkleTx& tx, vtxPrev)
genesis 524 {
genesis 525 if (!tx.IsCoinBase())
genesis 526 {
genesis 527 uint256 hash = tx.GetHash();
genesis 528 if (!mapTransactions.count(hash) && !txdb.ContainsTx(hash))
genesis 529 tx.AcceptToMemoryPool(txdb, fCheckInputs);
genesis 530 }
genesis 531 }
genesis 532 return AcceptToMemoryPool(txdb, fCheckInputs);
genesis 533 }
genesis 534 return false;
genesis 535 }
genesis 536
genesis 537 bool CWalletTx::AcceptWalletTransaction()
genesis 538 {
genesis 539 CTxDB txdb("r");
genesis 540 return AcceptWalletTransaction(txdb);
genesis 541 }
genesis 542
genesis 543 int CTxIndex::GetDepthInMainChain() const
genesis 544 {
genesis 545
genesis 546 CBlock block;
genesis 547 if (!block.ReadFromDisk(pos.nFile, pos.nBlockPos, false))
genesis 548 return 0;
genesis 549
genesis 550 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(block.GetHash());
genesis 551 if (mi == mapBlockIndex.end())
genesis 552 return 0;
genesis 553 CBlockIndex* pindex = (*mi).second;
genesis 554 if (!pindex || !pindex->IsInMainChain())
genesis 555 return 0;
genesis 556 return 1 + nBestHeight - pindex->nHeight;
genesis 557 }
genesis 558
genesis 559
genesis 560
genesis 561
genesis 562
genesis 563
genesis 564
genesis 565
genesis 566
genesis 567
genesis 568
genesis 569
genesis 570
genesis 571
genesis 572
genesis 573 bool CBlock::ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions)
genesis 574 {
genesis 575 if (!fReadTransactions)
genesis 576 {
genesis 577 *this = pindex->GetBlockHeader();
genesis 578 return true;
genesis 579 }
genesis 580 if (!ReadFromDisk(pindex->nFile, pindex->nBlockPos, fReadTransactions))
genesis 581 return false;
genesis 582 if (GetHash() != pindex->GetBlockHash())
genesis 583 return error("CBlock::ReadFromDisk() : GetHash() doesn't match index");
genesis 584 return true;
genesis 585 }
genesis 586
genesis 587 int64 static GetBlockValue(int nHeight, int64 nFees)
genesis 588 {
genesis 589 int64 nSubsidy = 50 * COIN;
genesis 590
genesis 591
genesis 592 nSubsidy >>= (nHeight / 210000);
genesis 593
genesis 594 return nSubsidy + nFees;
genesis 595 }
genesis 596
genesis 597 static const int64 nTargetTimespan = 14 * 24 * 60 * 60;
genesis 598 static const int64 nTargetSpacing = 10 * 60;
genesis 599 static const int64 nInterval = nTargetTimespan / nTargetSpacing;
genesis 600
genesis 601
genesis 602
genesis 603
genesis 604
genesis 605 unsigned int ComputeMinWork(unsigned int nBase, int64 nTime)
genesis 606 {
genesis 607 CBigNum bnResult;
genesis 608 bnResult.SetCompact(nBase);
genesis 609 while (nTime > 0 && bnResult < bnProofOfWorkLimit)
genesis 610 {
genesis 611
genesis 612 bnResult *= 4;
genesis 613
genesis 614 nTime -= nTargetTimespan*4;
genesis 615 }
genesis 616 if (bnResult > bnProofOfWorkLimit)
genesis 617 bnResult = bnProofOfWorkLimit;
genesis 618 return bnResult.GetCompact();
genesis 619 }
genesis 620
genesis 621 unsigned int static GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlock *pblock)
genesis 622 {
genesis 623 unsigned int nProofOfWorkLimit = bnProofOfWorkLimit.GetCompact();
genesis 624
genesis 625
genesis 626 if (pindexLast == NULL)
genesis 627 return nProofOfWorkLimit;
genesis 628
genesis 629
genesis 630 if ((pindexLast->nHeight+1) % nInterval != 0)
genesis 631 {
genesis 632 return pindexLast->nBits;
genesis 633 }
genesis 634
genesis 635
genesis 636 const CBlockIndex* pindexFirst = pindexLast;
genesis 637 for (int i = 0; pindexFirst && i < nInterval-1; i++)
genesis 638 pindexFirst = pindexFirst->pprev;
genesis 639 assert(pindexFirst);
genesis 640
genesis 641
genesis 642 int64 nActualTimespan = pindexLast->GetBlockTime() - pindexFirst->GetBlockTime();
genesis 643 printf(" nActualTimespan = %"PRI64d" before bounds\n", nActualTimespan);
genesis 644 if (nActualTimespan < nTargetTimespan/4)
genesis 645 nActualTimespan = nTargetTimespan/4;
genesis 646 if (nActualTimespan > nTargetTimespan*4)
genesis 647 nActualTimespan = nTargetTimespan*4;
genesis 648
genesis 649
genesis 650 CBigNum bnNew;
genesis 651 bnNew.SetCompact(pindexLast->nBits);
genesis 652 bnNew *= nActualTimespan;
genesis 653 bnNew /= nTargetTimespan;
genesis 654
genesis 655 if (bnNew > bnProofOfWorkLimit)
genesis 656 bnNew = bnProofOfWorkLimit;
genesis 657
genesis 658
genesis 659 printf("GetNextWorkRequired RETARGET\n");
genesis 660 printf("nTargetTimespan = %"PRI64d" nActualTimespan = %"PRI64d"\n", nTargetTimespan, nActualTimespan);
genesis 661 printf("Before: %08x %s\n", pindexLast->nBits, CBigNum().SetCompact(pindexLast->nBits).getuint256().ToString().c_str());
genesis 662 printf("After: %08x %s\n", bnNew.GetCompact(), bnNew.getuint256().ToString().c_str());
genesis 663
genesis 664 return bnNew.GetCompact();
genesis 665 }
genesis 666
genesis 667 bool CheckProofOfWork(uint256 hash, unsigned int nBits)
genesis 668 {
genesis 669 CBigNum bnTarget;
genesis 670 bnTarget.SetCompact(nBits);
genesis 671
genesis 672
genesis 673 if (bnTarget <= 0 || bnTarget > bnProofOfWorkLimit)
genesis 674 return error("CheckProofOfWork() : nBits below minimum work");
genesis 675
genesis 676
genesis 677 if (hash > bnTarget.getuint256())
genesis 678 return error("CheckProofOfWork() : hash doesn't match nBits");
genesis 679
genesis 680 return true;
genesis 681 }
genesis 682
genesis 683
genesis 684 int GetNumBlocksOfPeers()
genesis 685 {
genesis 686 return std::max(cPeerBlockCounts.median(), Checkpoints::GetTotalBlocksEstimate());
genesis 687 }
genesis 688
genesis 689 bool IsInitialBlockDownload()
genesis 690 {
genesis 691 if (pindexBest == NULL || nBestHeight < Checkpoints::GetTotalBlocksEstimate())
genesis 692 return true;
genesis 693 static int64 nLastUpdate;
genesis 694 static CBlockIndex* pindexLastBest;
genesis 695 if (pindexBest != pindexLastBest)
genesis 696 {
genesis 697 pindexLastBest = pindexBest;
genesis 698 nLastUpdate = GetTime();
genesis 699 }
genesis 700 return (GetTime() - nLastUpdate < 10 &&
genesis 701 pindexBest->GetBlockTime() < GetTime() - 24 * 60 * 60);
genesis 702 }
genesis 703
genesis 704 void static InvalidChainFound(CBlockIndex* pindexNew)
genesis 705 {
genesis 706 if (pindexNew->bnChainWork > bnBestInvalidWork)
genesis 707 {
genesis 708 bnBestInvalidWork = pindexNew->bnChainWork;
genesis 709 CTxDB().WriteBestInvalidWork(bnBestInvalidWork);
genesis 710 MainFrameRepaint();
genesis 711 }
genesis 712 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());
genesis 713 printf("InvalidChainFound: current best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
genesis 714 if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
genesis 715 printf("InvalidChainFound: WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.\n");
genesis 716 }
genesis 717
genesis 718
genesis 719
genesis 720
genesis 721
genesis 722
genesis 723
genesis 724
genesis 725
genesis 726
genesis 727
genesis 728 bool CTransaction::DisconnectInputs(CTxDB& txdb)
genesis 729 {
genesis 730
genesis 731 if (!IsCoinBase())
genesis 732 {
genesis 733 BOOST_FOREACH(const CTxIn& txin, vin)
genesis 734 {
genesis 735 COutPoint prevout = txin.prevout;
genesis 736
genesis 737
genesis 738 CTxIndex txindex;
genesis 739 if (!txdb.ReadTxIndex(prevout.hash, txindex))
genesis 740 return error("DisconnectInputs() : ReadTxIndex failed");
genesis 741
genesis 742 if (prevout.n >= txindex.vSpent.size())
genesis 743 return error("DisconnectInputs() : prevout.n out of range");
genesis 744
genesis 745
genesis 746 txindex.vSpent[prevout.n].SetNull();
genesis 747
genesis 748
genesis 749 if (!txdb.UpdateTxIndex(prevout.hash, txindex))
genesis 750 return error("DisconnectInputs() : UpdateTxIndex failed");
genesis 751 }
genesis 752 }
genesis 753
genesis 754
genesis 755
genesis 756
genesis 757
genesis 758 txdb.EraseTxIndex(*this);
genesis 759
genesis 760 return true;
genesis 761 }
genesis 762
genesis 763
genesis 764 bool CTransaction::ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPool, CDiskTxPos posThisTx,
genesis 765 CBlockIndex* pindexBlock, int64& nFees, bool fBlock, bool fMiner, int64 nMinFee,
genesis 766 bool& fInvalid)
genesis 767 {
genesis 768
genesis 769
genesis 770
genesis 771
genesis 772 fInvalid = false;
genesis 773
genesis 774
genesis 775
genesis 776
genesis 777
genesis 778 if (!IsCoinBase())
genesis 779 {
genesis 780 int64 nValueIn = 0;
genesis 781 for (int i = 0; i < vin.size(); i++)
genesis 782 {
genesis 783 COutPoint prevout = vin[i].prevout;
genesis 784
genesis 785
genesis 786 CTxIndex txindex;
genesis 787 bool fFound = true;
genesis 788 if ((fBlock || fMiner) && mapTestPool.count(prevout.hash))
genesis 789 {
genesis 790
genesis 791 txindex = mapTestPool[prevout.hash];
genesis 792 }
genesis 793 else
genesis 794 {
genesis 795
genesis 796 fFound = txdb.ReadTxIndex(prevout.hash, txindex);
genesis 797 }
genesis 798 if (!fFound && (fBlock || fMiner))
genesis 799 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());
genesis 800
genesis 801
genesis 802 CTransaction txPrev;
genesis 803 if (!fFound || txindex.pos == CDiskTxPos(1,1,1))
genesis 804 {
genesis 805
genesis 806 CRITICAL_BLOCK(cs_mapTransactions)
genesis 807 {
genesis 808 if (!mapTransactions.count(prevout.hash))
genesis 809 return error("ConnectInputs() : %s mapTransactions prev not found %s", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
genesis 810 txPrev = mapTransactions[prevout.hash];
genesis 811 }
genesis 812 if (!fFound)
genesis 813 txindex.vSpent.resize(txPrev.vout.size());
genesis 814 }
genesis 815 else
genesis 816 {
genesis 817
genesis 818 if (!txPrev.ReadFromDisk(txindex.pos))
genesis 819 return error("ConnectInputs() : %s ReadFromDisk prev tx %s failed", GetHash().ToString().substr(0,10).c_str(), prevout.hash.ToString().substr(0,10).c_str());
genesis 820 }
genesis 821
genesis 822 if (prevout.n >= txPrev.vout.size() || prevout.n >= txindex.vSpent.size())
genesis 823 {
genesis 824
genesis 825
genesis 826 fInvalid = true;
genesis 827 return DoS(100, 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()));
genesis 828 }
genesis 829
genesis 830
genesis 831 if (txPrev.IsCoinBase())
genesis 832 for (CBlockIndex* pindex = pindexBlock; pindex && pindexBlock->nHeight - pindex->nHeight < COINBASE_MATURITY; pindex = pindex->pprev)
genesis 833 if (pindex->nBlockPos == txindex.pos.nBlockPos && pindex->nFile == txindex.pos.nFile)
genesis 834 return error("ConnectInputs() : tried to spend coinbase at depth %d", pindexBlock->nHeight - pindex->nHeight);
genesis 835
genesis 836
genesis 837
genesis 838
asciilifeform_add... 839 if (fVerifyAll || (!(fBlock && (nBestHeight < Checkpoints::GetTotalBlocksEstimate()))))
genesis 840
genesis 841 if (!VerifySignature(txPrev, *this, i))
genesis 842 return DoS(100,error("ConnectInputs() : %s VerifySignature failed", GetHash().ToString().substr(0,10).c_str()));
genesis 843
genesis 844
genesis 845
genesis 846
genesis 847 if (!txindex.vSpent[prevout.n].IsNull())
genesis 848 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());
genesis 849
genesis 850
genesis 851 nValueIn += txPrev.vout[prevout.n].nValue;
genesis 852 if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
genesis 853 return DoS(100, error("ConnectInputs() : txin values out of range"));
genesis 854
genesis 855
genesis 856 txindex.vSpent[prevout.n] = posThisTx;
genesis 857
genesis 858
genesis 859 if (fBlock || fMiner)
genesis 860 {
genesis 861 mapTestPool[prevout.hash] = txindex;
genesis 862 }
genesis 863 }
genesis 864
genesis 865 if (nValueIn < GetValueOut())
genesis 866 return DoS(100, error("ConnectInputs() : %s value in < value out", GetHash().ToString().substr(0,10).c_str()));
genesis 867
genesis 868
genesis 869 int64 nTxFee = nValueIn - GetValueOut();
genesis 870 if (nTxFee < 0)
genesis 871 return DoS(100, error("ConnectInputs() : %s nTxFee < 0", GetHash().ToString().substr(0,10).c_str()));
genesis 872 if (nTxFee < nMinFee)
genesis 873 return false;
genesis 874 nFees += nTxFee;
genesis 875 if (!MoneyRange(nFees))
genesis 876 return DoS(100, error("ConnectInputs() : nFees out of range"));
genesis 877 }
genesis 878
genesis 879 if (fBlock)
genesis 880 {
genesis 881
genesis 882 mapTestPool[GetHash()] = CTxIndex(posThisTx, vout.size());
genesis 883 }
genesis 884 else if (fMiner)
genesis 885 {
genesis 886
genesis 887 mapTestPool[GetHash()] = CTxIndex(CDiskTxPos(1,1,1), vout.size());
genesis 888 }
genesis 889
genesis 890 return true;
genesis 891 }
genesis 892
genesis 893
genesis 894 bool CTransaction::ClientConnectInputs()
genesis 895 {
genesis 896 if (IsCoinBase())
genesis 897 return false;
genesis 898
genesis 899
genesis 900 CRITICAL_BLOCK(cs_mapTransactions)
genesis 901 {
genesis 902 int64 nValueIn = 0;
genesis 903 for (int i = 0; i < vin.size(); i++)
genesis 904 {
genesis 905
genesis 906 COutPoint prevout = vin[i].prevout;
genesis 907 if (!mapTransactions.count(prevout.hash))
genesis 908 return false;
genesis 909 CTransaction& txPrev = mapTransactions[prevout.hash];
genesis 910
genesis 911 if (prevout.n >= txPrev.vout.size())
genesis 912 return false;
genesis 913
genesis 914
genesis 915 if (!VerifySignature(txPrev, *this, i))
genesis 916 return error("ConnectInputs() : VerifySignature failed");
genesis 917
genesis 918
genesis 919
genesis 920
genesis 921
genesis 922
genesis 923
genesis 924
genesis 925
genesis 926
genesis 927 nValueIn += txPrev.vout[prevout.n].nValue;
genesis 928
genesis 929 if (!MoneyRange(txPrev.vout[prevout.n].nValue) || !MoneyRange(nValueIn))
genesis 930 return error("ClientConnectInputs() : txin values out of range");
genesis 931 }
genesis 932 if (GetValueOut() > nValueIn)
genesis 933 return false;
genesis 934 }
genesis 935
genesis 936 return true;
genesis 937 }
genesis 938
genesis 939
genesis 940
genesis 941
genesis 942 bool CBlock::DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex)
genesis 943 {
genesis 944
genesis 945 for (int i = vtx.size()-1; i >= 0; i--)
genesis 946 if (!vtx[i].DisconnectInputs(txdb))
genesis 947 return false;
genesis 948
genesis 949
genesis 950
genesis 951 if (pindex->pprev)
genesis 952 {
genesis 953 CDiskBlockIndex blockindexPrev(pindex->pprev);
genesis 954 blockindexPrev.hashNext = 0;
genesis 955 if (!txdb.WriteBlockIndex(blockindexPrev))
genesis 956 return error("DisconnectBlock() : WriteBlockIndex failed");
genesis 957 }
genesis 958
genesis 959 return true;
genesis 960 }
genesis 961
genesis 962 bool CBlock::ConnectBlock(CTxDB& txdb, CBlockIndex* pindex)
genesis 963 {
genesis 964
genesis 965 if (!CheckBlock())
genesis 966 return false;
genesis 967
genesis 968
genesis 969
genesis 970
genesis 971
genesis 972
genesis 973
genesis 974
genesis 975
genesis 976
asciilifeform_let... 977 if (pindex->nTime > 1331769600)
genesis 978 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 979 {
genesis 980 CTxIndex txindexOld;
genesis 981 if (txdb.ReadTxIndex(tx.GetHash(), txindexOld))
genesis 982 BOOST_FOREACH(CDiskTxPos &pos, txindexOld.vSpent)
genesis 983 if (pos.IsNull())
genesis 984 return false;
genesis 985 }
genesis 986
genesis 987
genesis 988 unsigned int nTxPos = pindex->nBlockPos + ::GetSerializeSize(CBlock(), SER_DISK) - 1 + GetSizeOfCompactSize(vtx.size());
genesis 989
genesis 990 map<uint256, CTxIndex> mapQueuedChanges;
genesis 991 int64 nFees = 0;
genesis 992 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 993 {
genesis 994 CDiskTxPos posThisTx(pindex->nFile, pindex->nBlockPos, nTxPos);
genesis 995 nTxPos += ::GetSerializeSize(tx, SER_DISK);
genesis 996
genesis 997 bool fInvalid;
genesis 998 if (!tx.ConnectInputs(txdb, mapQueuedChanges, posThisTx, pindex, nFees, true, false, 0, fInvalid))
genesis 999 return false;
genesis 1000 }
genesis 1001
genesis 1002 for (map<uint256, CTxIndex>::iterator mi = mapQueuedChanges.begin(); mi != mapQueuedChanges.end(); ++mi)
genesis 1003 {
genesis 1004 if (!txdb.UpdateTxIndex((*mi).first, (*mi).second))
genesis 1005 return error("ConnectBlock() : UpdateTxIndex failed");
genesis 1006 }
genesis 1007
genesis 1008 if (vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees))
genesis 1009 return false;
genesis 1010
genesis 1011
genesis 1012
genesis 1013 if (pindex->pprev)
genesis 1014 {
genesis 1015 CDiskBlockIndex blockindexPrev(pindex->pprev);
genesis 1016 blockindexPrev.hashNext = pindex->GetBlockHash();
genesis 1017 if (!txdb.WriteBlockIndex(blockindexPrev))
genesis 1018 return error("ConnectBlock() : WriteBlockIndex failed");
genesis 1019 }
genesis 1020
genesis 1021
genesis 1022 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 1023 SyncWithWallets(tx, this, true);
genesis 1024
genesis 1025 return true;
genesis 1026 }
genesis 1027
genesis 1028 bool static Reorganize(CTxDB& txdb, CBlockIndex* pindexNew)
genesis 1029 {
genesis 1030 printf("REORGANIZE\n");
genesis 1031
genesis 1032
genesis 1033 CBlockIndex* pfork = pindexBest;
genesis 1034 CBlockIndex* plonger = pindexNew;
genesis 1035 while (pfork != plonger)
genesis 1036 {
genesis 1037 while (plonger->nHeight > pfork->nHeight)
genesis 1038 if (!(plonger = plonger->pprev))
genesis 1039 return error("Reorganize() : plonger->pprev is null");
genesis 1040 if (pfork == plonger)
genesis 1041 break;
genesis 1042 if (!(pfork = pfork->pprev))
genesis 1043 return error("Reorganize() : pfork->pprev is null");
genesis 1044 }
genesis 1045
genesis 1046
genesis 1047 vector<CBlockIndex*> vDisconnect;
genesis 1048 for (CBlockIndex* pindex = pindexBest; pindex != pfork; pindex = pindex->pprev)
genesis 1049 vDisconnect.push_back(pindex);
genesis 1050
genesis 1051
genesis 1052 vector<CBlockIndex*> vConnect;
genesis 1053 for (CBlockIndex* pindex = pindexNew; pindex != pfork; pindex = pindex->pprev)
genesis 1054 vConnect.push_back(pindex);
genesis 1055 reverse(vConnect.begin(), vConnect.end());
genesis 1056
genesis 1057
genesis 1058 vector<CTransaction> vResurrect;
genesis 1059 BOOST_FOREACH(CBlockIndex* pindex, vDisconnect)
genesis 1060 {
genesis 1061 CBlock block;
genesis 1062 if (!block.ReadFromDisk(pindex))
genesis 1063 return error("Reorganize() : ReadFromDisk for disconnect failed");
genesis 1064 if (!block.DisconnectBlock(txdb, pindex))
genesis 1065 return error("Reorganize() : DisconnectBlock failed");
genesis 1066
genesis 1067
genesis 1068 BOOST_FOREACH(const CTransaction& tx, block.vtx)
genesis 1069 if (!tx.IsCoinBase())
genesis 1070 vResurrect.push_back(tx);
genesis 1071 }
genesis 1072
genesis 1073
genesis 1074 vector<CTransaction> vDelete;
genesis 1075 for (int i = 0; i < vConnect.size(); i++)
genesis 1076 {
genesis 1077 CBlockIndex* pindex = vConnect[i];
genesis 1078 CBlock block;
genesis 1079 if (!block.ReadFromDisk(pindex))
genesis 1080 return error("Reorganize() : ReadFromDisk for connect failed");
genesis 1081 if (!block.ConnectBlock(txdb, pindex))
genesis 1082 {
genesis 1083
genesis 1084 txdb.TxnAbort();
genesis 1085 return error("Reorganize() : ConnectBlock failed");
genesis 1086 }
genesis 1087
genesis 1088
genesis 1089 BOOST_FOREACH(const CTransaction& tx, block.vtx)
genesis 1090 vDelete.push_back(tx);
genesis 1091 }
genesis 1092 if (!txdb.WriteHashBestChain(pindexNew->GetBlockHash()))
genesis 1093 return error("Reorganize() : WriteHashBestChain failed");
genesis 1094
genesis 1095
genesis 1096 if (!txdb.TxnCommit())
genesis 1097 return error("Reorganize() : TxnCommit failed");
genesis 1098
genesis 1099
genesis 1100 BOOST_FOREACH(CBlockIndex* pindex, vDisconnect)
genesis 1101 if (pindex->pprev)
genesis 1102 pindex->pprev->pnext = NULL;
genesis 1103
genesis 1104
genesis 1105 BOOST_FOREACH(CBlockIndex* pindex, vConnect)
genesis 1106 if (pindex->pprev)
genesis 1107 pindex->pprev->pnext = pindex;
genesis 1108
genesis 1109
genesis 1110 BOOST_FOREACH(CTransaction& tx, vResurrect)
genesis 1111 tx.AcceptToMemoryPool(txdb, false);
genesis 1112
genesis 1113
genesis 1114 BOOST_FOREACH(CTransaction& tx, vDelete)
genesis 1115 tx.RemoveFromMemoryPool();
genesis 1116
genesis 1117 return true;
genesis 1118 }
genesis 1119
genesis 1120
genesis 1121 bool CBlock::SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew)
genesis 1122 {
genesis 1123 uint256 hash = GetHash();
genesis 1124
genesis 1125 txdb.TxnBegin();
genesis 1126 if (pindexGenesisBlock == NULL && hash == hashGenesisBlock)
genesis 1127 {
genesis 1128 txdb.WriteHashBestChain(hash);
genesis 1129 if (!txdb.TxnCommit())
genesis 1130 return error("SetBestChain() : TxnCommit failed");
genesis 1131 pindexGenesisBlock = pindexNew;
genesis 1132 }
genesis 1133 else if (hashPrevBlock == hashBestChain)
genesis 1134 {
genesis 1135
genesis 1136 if (!ConnectBlock(txdb, pindexNew) || !txdb.WriteHashBestChain(hash))
genesis 1137 {
genesis 1138 txdb.TxnAbort();
genesis 1139 InvalidChainFound(pindexNew);
genesis 1140 return error("SetBestChain() : ConnectBlock failed");
genesis 1141 }
genesis 1142 if (!txdb.TxnCommit())
genesis 1143 return error("SetBestChain() : TxnCommit failed");
genesis 1144
genesis 1145
genesis 1146 pindexNew->pprev->pnext = pindexNew;
genesis 1147
genesis 1148
genesis 1149 BOOST_FOREACH(CTransaction& tx, vtx)
genesis 1150 tx.RemoveFromMemoryPool();
genesis 1151 }
genesis 1152 else
genesis 1153 {
genesis 1154
genesis 1155 if (!Reorganize(txdb, pindexNew))
genesis 1156 {
genesis 1157 txdb.TxnAbort();
genesis 1158 InvalidChainFound(pindexNew);
genesis 1159 return error("SetBestChain() : Reorganize failed");
genesis 1160 }
genesis 1161 }
genesis 1162
genesis 1163
genesis 1164 if (!IsInitialBlockDownload())
genesis 1165 {
genesis 1166 const CBlockLocator locator(pindexNew);
genesis 1167 ::SetBestChain(locator);
genesis 1168 }
genesis 1169
genesis 1170
genesis 1171 hashBestChain = hash;
genesis 1172 pindexBest = pindexNew;
genesis 1173 nBestHeight = pindexBest->nHeight;
genesis 1174 bnBestChainWork = pindexNew->bnChainWork;
genesis 1175 nTimeBestReceived = GetTime();
genesis 1176 nTransactionsUpdated++;
genesis 1177 printf("SetBestChain: new best=%s height=%d work=%s\n", hashBestChain.ToString().substr(0,20).c_str(), nBestHeight, bnBestChainWork.ToString().c_str());
genesis 1178
genesis 1179 return true;
genesis 1180 }
genesis 1181
genesis 1182
genesis 1183 bool CBlock::AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos)
genesis 1184 {
genesis 1185
genesis 1186 uint256 hash = GetHash();
genesis 1187 if (mapBlockIndex.count(hash))
genesis 1188 return error("AddToBlockIndex() : %s already exists", hash.ToString().substr(0,20).c_str());
genesis 1189
genesis 1190
genesis 1191 CBlockIndex* pindexNew = new CBlockIndex(nFile, nBlockPos, *this);
genesis 1192 if (!pindexNew)
genesis 1193 return error("AddToBlockIndex() : new CBlockIndex failed");
genesis 1194 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
genesis 1195 pindexNew->phashBlock = &((*mi).first);
genesis 1196 map<uint256, CBlockIndex*>::iterator miPrev = mapBlockIndex.find(hashPrevBlock);
genesis 1197 if (miPrev != mapBlockIndex.end())
genesis 1198 {
genesis 1199 pindexNew->pprev = (*miPrev).second;
genesis 1200 pindexNew->nHeight = pindexNew->pprev->nHeight + 1;
genesis 1201 }
genesis 1202 pindexNew->bnChainWork = (pindexNew->pprev ? pindexNew->pprev->bnChainWork : 0) + pindexNew->GetBlockWork();
genesis 1203
genesis 1204 CTxDB txdb;
genesis 1205 txdb.TxnBegin();
genesis 1206 txdb.WriteBlockIndex(CDiskBlockIndex(pindexNew));
genesis 1207 if (!txdb.TxnCommit())
genesis 1208 return false;
genesis 1209
genesis 1210
genesis 1211 if (pindexNew->bnChainWork > bnBestChainWork)
genesis 1212 if (!SetBestChain(txdb, pindexNew))
genesis 1213 return false;
genesis 1214
genesis 1215 txdb.Close();
genesis 1216
genesis 1217 if (pindexNew == pindexBest)
genesis 1218 {
genesis 1219
genesis 1220 static uint256 hashPrevBestCoinBase;
genesis 1221 UpdatedTransaction(hashPrevBestCoinBase);
genesis 1222 hashPrevBestCoinBase = vtx[0].GetHash();
genesis 1223 }
genesis 1224
genesis 1225 MainFrameRepaint();
genesis 1226 return true;
genesis 1227 }
genesis 1228
genesis 1229
genesis 1230
genesis 1231
genesis 1232 bool CBlock::CheckBlock() const
genesis 1233 {
genesis 1234
genesis 1235
genesis 1236
genesis 1237
genesis 1238 if (vtx.empty() || vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(*this, SER_NETWORK) > MAX_BLOCK_SIZE)
genesis 1239 return DoS(100, error("CheckBlock() : size limits failed"));
genesis 1240
genesis 1241
genesis 1242 if (!CheckProofOfWork(GetHash(), nBits))
genesis 1243 return DoS(50, error("CheckBlock() : proof of work failed"));
genesis 1244
genesis 1245
genesis 1246 if (GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60)
genesis 1247 return error("CheckBlock() : block timestamp too far in the future");
genesis 1248
genesis 1249
genesis 1250 if (vtx.empty() || !vtx[0].IsCoinBase())
genesis 1251 return DoS(100, error("CheckBlock() : first tx is not coinbase"));
genesis 1252 for (int i = 1; i < vtx.size(); i++)
genesis 1253 if (vtx[i].IsCoinBase())
genesis 1254 return DoS(100, error("CheckBlock() : more than one coinbase"));
genesis 1255
genesis 1256
genesis 1257 BOOST_FOREACH(const CTransaction& tx, vtx)
genesis 1258 if (!tx.CheckTransaction())
genesis 1259 return DoS(tx.nDoS, error("CheckBlock() : CheckTransaction failed"));
genesis 1260
genesis 1261
genesis 1262 if (GetSigOpCount() > MAX_BLOCK_SIGOPS)
genesis 1263 return DoS(100, error("CheckBlock() : out-of-bounds SigOpCount"));
genesis 1264
genesis 1265
genesis 1266 if (hashMerkleRoot != BuildMerkleTree())
genesis 1267 return DoS(100, error("CheckBlock() : hashMerkleRoot mismatch"));
genesis 1268
genesis 1269 return true;
genesis 1270 }
genesis 1271
genesis 1272 bool CBlock::AcceptBlock()
genesis 1273 {
genesis 1274
genesis 1275 uint256 hash = GetHash();
genesis 1276 if (mapBlockIndex.count(hash))
genesis 1277 return error("AcceptBlock() : block already in mapBlockIndex");
genesis 1278
genesis 1279
genesis 1280 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashPrevBlock);
genesis 1281 if (mi == mapBlockIndex.end())
genesis 1282 return DoS(10, error("AcceptBlock() : prev block not found"));
genesis 1283 CBlockIndex* pindexPrev = (*mi).second;
genesis 1284 int nHeight = pindexPrev->nHeight+1;
genesis 1285
genesis 1286
genesis 1287 if (nBits != GetNextWorkRequired(pindexPrev, this))
genesis 1288 return DoS(100, error("AcceptBlock() : incorrect proof of work"));
genesis 1289
genesis 1290
genesis 1291 if (GetBlockTime() <= pindexPrev->GetMedianTimePast())
genesis 1292 return error("AcceptBlock() : block's timestamp is too early");
genesis 1293
genesis 1294
genesis 1295 BOOST_FOREACH(const CTransaction& tx, vtx)
genesis 1296 if (!tx.IsFinal(nHeight, GetBlockTime()))
genesis 1297 return DoS(10, error("AcceptBlock() : contains a non-final transaction"));
genesis 1298
genesis 1299
genesis 1300 if (!Checkpoints::CheckBlock(nHeight, hash))
genesis 1301 return DoS(100, error("AcceptBlock() : rejected by checkpoint lockin at %d", nHeight));
genesis 1302
genesis 1303
genesis 1304 if (!CheckDiskSpace(::GetSerializeSize(*this, SER_DISK)))
genesis 1305 return error("AcceptBlock() : out of disk space");
genesis 1306 unsigned int nFile = -1;
genesis 1307 unsigned int nBlockPos = 0;
genesis 1308 if (!WriteToDisk(nFile, nBlockPos))
genesis 1309 return error("AcceptBlock() : WriteToDisk failed");
genesis 1310 if (!AddToBlockIndex(nFile, nBlockPos))
genesis 1311 return error("AcceptBlock() : AddToBlockIndex failed");
genesis 1312
genesis 1313
genesis 1314 if (hashBestChain == hash)
genesis 1315 CRITICAL_BLOCK(cs_vNodes)
genesis 1316 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 1317 if (nBestHeight > (pnode->nStartingHeight != -1 ? pnode->nStartingHeight - 2000 : 140700))
genesis 1318 pnode->PushInventory(CInv(MSG_BLOCK, hash));
genesis 1319
genesis 1320 return true;
genesis 1321 }
genesis 1322
genesis 1323 bool ProcessBlock(CNode* pfrom, CBlock* pblock)
genesis 1324 {
genesis 1325
genesis 1326 uint256 hash = pblock->GetHash();
genesis 1327 if (mapBlockIndex.count(hash))
genesis 1328 return error("ProcessBlock() : already have block %d %s", mapBlockIndex[hash]->nHeight, hash.ToString().substr(0,20).c_str());
genesis 1329
genesis 1330
genesis 1331 if (!pblock->CheckBlock())
genesis 1332 return error("ProcessBlock() : CheckBlock FAILED");
genesis 1333
genesis 1334 CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint(mapBlockIndex);
genesis 1335 if (pcheckpoint && pblock->hashPrevBlock != hashBestChain)
genesis 1336 {
genesis 1337
genesis 1338 int64 deltaTime = pblock->GetBlockTime() - pcheckpoint->nTime;
genesis 1339 if (deltaTime < 0)
genesis 1340 {
genesis 1341 if (pfrom)
genesis 1342 pfrom->Misbehaving(100);
genesis 1343 return error("ProcessBlock() : block with timestamp before last checkpoint");
genesis 1344 }
genesis 1345 CBigNum bnNewBlock;
genesis 1346 bnNewBlock.SetCompact(pblock->nBits);
genesis 1347 CBigNum bnRequired;
genesis 1348 bnRequired.SetCompact(ComputeMinWork(pcheckpoint->nBits, deltaTime));
genesis 1349 if (bnNewBlock > bnRequired)
genesis 1350 {
genesis 1351 if (pfrom)
genesis 1352 pfrom->Misbehaving(100);
genesis 1353 return error("ProcessBlock() : block with too little proof-of-work");
genesis 1354 }
genesis 1355 }
genesis 1356
asciilifeform_orp... 1357
genesis 1358 if (!mapBlockIndex.count(pblock->hashPrevBlock))
genesis 1359 {
asciilifeform_orp... 1360 printf("ProcessBlock: BASTARD BLOCK, prev=%s, DISCARDED\n", pblock->hashPrevBlock.ToString().substr(0,20).c_str());
genesis 1361
genesis 1362
genesis 1363 if (pfrom)
asciilifeform_orp... 1364 pfrom->PushGetBlocks(pindexBest, pblock->hashPrevBlock);
asciilifeform_orp... 1365
asciilifeform_orp... 1366 return true;
genesis 1367 }
genesis 1368
genesis 1369
genesis 1370 if (!pblock->AcceptBlock())
genesis 1371 return error("ProcessBlock() : AcceptBlock FAILED");
genesis 1372
genesis 1373 printf("ProcessBlock: ACCEPTED\n");
genesis 1374 return true;
genesis 1375 }
genesis 1376
genesis 1377
genesis 1378
genesis 1379
genesis 1380
genesis 1381
genesis 1382
genesis 1383
genesis 1384 bool CheckDiskSpace(uint64 nAdditionalBytes)
genesis 1385 {
genesis 1386 uint64 nFreeBytesAvailable = filesystem::space(GetDataDir()).available;
genesis 1387
genesis 1388
genesis 1389 if (nFreeBytesAvailable < (uint64)15000000 + nAdditionalBytes)
genesis 1390 {
genesis 1391 fShutdown = true;
genesis 1392 string strMessage = _("Warning: Disk space is low ");
genesis 1393 strMiscWarning = strMessage;
genesis 1394 printf("*** %s\n", strMessage.c_str());
genesis 1395 ThreadSafeMessageBox(strMessage, "Bitcoin", wxOK | wxICON_EXCLAMATION);
genesis 1396 CreateThread(Shutdown, NULL);
genesis 1397 return false;
genesis 1398 }
genesis 1399 return true;
genesis 1400 }
genesis 1401
genesis 1402 FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode)
genesis 1403 {
genesis 1404 if (nFile == -1)
genesis 1405 return NULL;
genesis 1406 FILE* file = fopen(strprintf("%s/blk%04d.dat", GetDataDir().c_str(), nFile).c_str(), pszMode);
genesis 1407 if (!file)
genesis 1408 return NULL;
genesis 1409 if (nBlockPos != 0 && !strchr(pszMode, 'a') && !strchr(pszMode, 'w'))
genesis 1410 {
genesis 1411 if (fseek(file, nBlockPos, SEEK_SET) != 0)
genesis 1412 {
genesis 1413 fclose(file);
genesis 1414 return NULL;
genesis 1415 }
genesis 1416 }
genesis 1417 return file;
genesis 1418 }
genesis 1419
genesis 1420 static unsigned int nCurrentBlockFile = 1;
genesis 1421
genesis 1422 FILE* AppendBlockFile(unsigned int& nFileRet)
genesis 1423 {
genesis 1424 nFileRet = 0;
genesis 1425 loop
genesis 1426 {
genesis 1427 FILE* file = OpenBlockFile(nCurrentBlockFile, 0, "ab");
genesis 1428 if (!file)
genesis 1429 return NULL;
genesis 1430 if (fseek(file, 0, SEEK_END) != 0)
genesis 1431 return NULL;
genesis 1432
genesis 1433 if (ftell(file) < 0x7F000000 - MAX_SIZE)
genesis 1434 {
genesis 1435 nFileRet = nCurrentBlockFile;
genesis 1436 return file;
genesis 1437 }
genesis 1438 fclose(file);
genesis 1439 nCurrentBlockFile++;
genesis 1440 }
genesis 1441 }
genesis 1442
genesis 1443 bool LoadBlockIndex(bool fAllowNew)
genesis 1444 {
genesis 1445
genesis 1446
genesis 1447
genesis 1448 CTxDB txdb("cr");
genesis 1449 if (!txdb.LoadBlockIndex())
genesis 1450 return false;
genesis 1451 txdb.Close();
genesis 1452
genesis 1453
genesis 1454
genesis 1455
genesis 1456 if (mapBlockIndex.empty())
genesis 1457 {
genesis 1458 if (!fAllowNew)
genesis 1459 return false;
genesis 1460
genesis 1461
genesis 1462
genesis 1463
genesis 1464
genesis 1465
genesis 1466
genesis 1467
genesis 1468
genesis 1469 const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
genesis 1470 CTransaction txNew;
genesis 1471 txNew.vin.resize(1);
genesis 1472 txNew.vout.resize(1);
genesis 1473 txNew.vin[0].scriptSig = CScript() << 486604799 << CBigNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
genesis 1474 txNew.vout[0].nValue = 50 * COIN;
genesis 1475 txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
genesis 1476 CBlock block;
genesis 1477 block.vtx.push_back(txNew);
genesis 1478 block.hashPrevBlock = 0;
genesis 1479 block.hashMerkleRoot = block.BuildMerkleTree();
genesis 1480 block.nVersion = 1;
genesis 1481 block.nTime = 1231006505;
genesis 1482 block.nBits = 0x1d00ffff;
genesis 1483 block.nNonce = 2083236893;
genesis 1484
genesis 1485
genesis 1486 printf("%s\n", block.GetHash().ToString().c_str());
genesis 1487 printf("%s\n", hashGenesisBlock.ToString().c_str());
genesis 1488 printf("%s\n", block.hashMerkleRoot.ToString().c_str());
genesis 1489 assert(block.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
genesis 1490 block.print();
genesis 1491 assert(block.GetHash() == hashGenesisBlock);
genesis 1492
genesis 1493
genesis 1494 unsigned int nFile;
genesis 1495 unsigned int nBlockPos;
genesis 1496 if (!block.WriteToDisk(nFile, nBlockPos))
genesis 1497 return error("LoadBlockIndex() : writing genesis block to disk failed");
genesis 1498 if (!block.AddToBlockIndex(nFile, nBlockPos))
genesis 1499 return error("LoadBlockIndex() : genesis block not accepted");
genesis 1500 }
genesis 1501
genesis 1502 return true;
genesis 1503 }
genesis 1504
genesis 1505
genesis 1506
genesis 1507 void PrintBlockTree()
genesis 1508 {
genesis 1509
genesis 1510 map<CBlockIndex*, vector<CBlockIndex*> > mapNext;
genesis 1511 for (map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.begin(); mi != mapBlockIndex.end(); ++mi)
genesis 1512 {
genesis 1513 CBlockIndex* pindex = (*mi).second;
genesis 1514 mapNext[pindex->pprev].push_back(pindex);
genesis 1515
genesis 1516
genesis 1517
genesis 1518 }
genesis 1519
genesis 1520 vector<pair<int, CBlockIndex*> > vStack;
genesis 1521 vStack.push_back(make_pair(0, pindexGenesisBlock));
genesis 1522
genesis 1523 int nPrevCol = 0;
genesis 1524 while (!vStack.empty())
genesis 1525 {
genesis 1526 int nCol = vStack.back().first;
genesis 1527 CBlockIndex* pindex = vStack.back().second;
genesis 1528 vStack.pop_back();
genesis 1529
genesis 1530
genesis 1531 if (nCol > nPrevCol)
genesis 1532 {
genesis 1533 for (int i = 0; i < nCol-1; i++)
genesis 1534 printf("| ");
genesis 1535 printf("|\\\n");
genesis 1536 }
genesis 1537 else if (nCol < nPrevCol)
genesis 1538 {
genesis 1539 for (int i = 0; i < nCol; i++)
genesis 1540 printf("| ");
genesis 1541 printf("|\n");
genesis 1542 }
genesis 1543 nPrevCol = nCol;
genesis 1544
genesis 1545
genesis 1546 for (int i = 0; i < nCol; i++)
genesis 1547 printf("| ");
genesis 1548
genesis 1549
genesis 1550 CBlock block;
genesis 1551 block.ReadFromDisk(pindex);
genesis 1552 printf("%d (%u,%u) %s %s tx %d",
genesis 1553 pindex->nHeight,
genesis 1554 pindex->nFile,
genesis 1555 pindex->nBlockPos,
genesis 1556 block.GetHash().ToString().substr(0,20).c_str(),
genesis 1557 DateTimeStrFormat("%x %H:%M:%S", block.GetBlockTime()).c_str(),
genesis 1558 block.vtx.size());
genesis 1559
genesis 1560 PrintWallets(block);
genesis 1561
genesis 1562
genesis 1563 vector<CBlockIndex*>& vNext = mapNext[pindex];
genesis 1564 for (int i = 0; i < vNext.size(); i++)
genesis 1565 {
genesis 1566 if (vNext[i]->pnext)
genesis 1567 {
genesis 1568 swap(vNext[0], vNext[i]);
genesis 1569 break;
genesis 1570 }
genesis 1571 }
genesis 1572
genesis 1573
genesis 1574 for (int i = 0; i < vNext.size(); i++)
genesis 1575 vStack.push_back(make_pair(nCol+i, vNext[i]));
genesis 1576 }
genesis 1577 }
genesis 1578
genesis 1579
genesis 1580
genesis 1581
genesis 1582
bitcoin-asciilife... 1583
genesis 1584
genesis 1585
genesis 1586 string GetWarnings(string strFor)
genesis 1587 {
genesis 1588 int nPriority = 0;
genesis 1589 string strStatusBar;
genesis 1590 string strRPC;
genesis 1591 if (GetBoolArg("-testsafemode"))
genesis 1592 strRPC = "test";
genesis 1593
genesis 1594
genesis 1595 if (strMiscWarning != "")
genesis 1596 {
genesis 1597 nPriority = 1000;
genesis 1598 strStatusBar = strMiscWarning;
genesis 1599 }
genesis 1600
genesis 1601
genesis 1602 if (pindexBest && bnBestInvalidWork > bnBestChainWork + pindexBest->GetBlockWork() * 6)
genesis 1603 {
genesis 1604 nPriority = 2000;
genesis 1605 strStatusBar = strRPC = "WARNING: Displayed transactions may not be correct! You may need to upgrade, or other nodes may need to upgrade.";
genesis 1606 }
genesis 1607
genesis 1608 if (strFor == "statusbar")
genesis 1609 return strStatusBar;
genesis 1610 else if (strFor == "rpc")
genesis 1611 return strRPC;
genesis 1612 assert(!"GetWarnings() : invalid parameter");
genesis 1613 return "error";
genesis 1614 }
genesis 1615
genesis 1616
genesis 1617
genesis 1618
genesis 1619
genesis 1620
genesis 1621
genesis 1622
genesis 1623 bool static AlreadyHave(CTxDB& txdb, const CInv& inv)
genesis 1624 {
genesis 1625 switch (inv.type)
genesis 1626 {
asciilifeform_tx-... 1627 case MSG_TX: return mapTransactions.count(inv.hash) || txdb.ContainsTx(inv.hash);
asciilifeform_orp... 1628 case MSG_BLOCK: return mapBlockIndex.count(inv.hash);
genesis 1629 }
genesis 1630
genesis 1631 return true;
genesis 1632 }
genesis 1633
genesis 1634
genesis 1635
genesis 1636
genesis 1637
genesis 1638
genesis 1639
genesis 1640 unsigned char pchMessageStart[4] = { 0xf9, 0xbe, 0xb4, 0xd9 };
genesis 1641
genesis 1642
genesis 1643 bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
genesis 1644 {
genesis 1645 static map<unsigned int, vector<unsigned char> > mapReuseKey;
genesis 1646 RandAddSeedPerfmon();
genesis 1647 if (fDebug) {
genesis 1648 printf("%s ", DateTimeStrFormat("%x %H:%M:%S", GetTime()).c_str());
genesis 1649 printf("received: %s (%d bytes)\n", strCommand.c_str(), vRecv.size());
genesis 1650 }
genesis 1651 if (mapArgs.count("-dropmessagestest") && GetRand(atoi(mapArgs["-dropmessagestest"])) == 0)
genesis 1652 {
genesis 1653 printf("dropmessagestest DROPPING RECV MESSAGE\n");
genesis 1654 return true;
genesis 1655 }
genesis 1656
genesis 1657
genesis 1658
genesis 1659
genesis 1660
genesis 1661 if (strCommand == "version")
genesis 1662 {
genesis 1663
genesis 1664 if (pfrom->nVersion != 0)
genesis 1665 {
genesis 1666 pfrom->Misbehaving(1);
genesis 1667 return false;
genesis 1668 }
genesis 1669
genesis 1670 int64 nTime;
genesis 1671 CAddress addrMe;
genesis 1672 CAddress addrFrom;
genesis 1673 uint64 nNonce = 1;
genesis 1674 vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
genesis 1675 if (pfrom->nVersion == 10300)
genesis 1676 pfrom->nVersion = 300;
genesis 1677 if (pfrom->nVersion >= 106 && !vRecv.empty())
genesis 1678 vRecv >> addrFrom >> nNonce;
genesis 1679 if (pfrom->nVersion >= 106 && !vRecv.empty())
genesis 1680 vRecv >> pfrom->strSubVer;
genesis 1681 if (pfrom->nVersion >= 209 && !vRecv.empty())
genesis 1682 vRecv >> pfrom->nStartingHeight;
genesis 1683
genesis 1684 if (pfrom->nVersion == 0)
genesis 1685 return false;
genesis 1686
genesis 1687
genesis 1688 if (nNonce == nLocalHostNonce && nNonce > 1)
genesis 1689 {
genesis 1690 printf("connected to self at %s, disconnecting\n", pfrom->addr.ToString().c_str());
genesis 1691 pfrom->fDisconnect = true;
genesis 1692 return true;
genesis 1693 }
genesis 1694
genesis 1695
genesis 1696 if (pfrom->fInbound)
genesis 1697 pfrom->PushVersion();
genesis 1698
genesis 1699 pfrom->fClient = !(pfrom->nServices & NODE_NETWORK);
genesis 1700
genesis 1701 AddTimeData(pfrom->addr.ip, nTime);
genesis 1702
genesis 1703
genesis 1704 if (pfrom->nVersion >= 209)
genesis 1705 pfrom->PushMessage("verack");
genesis 1706 pfrom->vSend.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1707 if (pfrom->nVersion < 209)
genesis 1708 pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1709
genesis 1710 if (!pfrom->fInbound)
genesis 1711 {
genesis 1712
genesis 1713 if (addrLocalHost.IsRoutable() && !fUseProxy)
genesis 1714 {
genesis 1715 CAddress addr(addrLocalHost);
genesis 1716 addr.nTime = GetAdjustedTime();
genesis 1717 pfrom->PushAddress(addr);
genesis 1718 }
genesis 1719
genesis 1720
genesis 1721 if (pfrom->nVersion >= 31402 || mapAddresses.size() < 1000)
genesis 1722 {
genesis 1723 pfrom->PushMessage("getaddr");
genesis 1724 pfrom->fGetAddr = true;
genesis 1725 }
genesis 1726 }
genesis 1727
genesis 1728
genesis 1729 static int nAskedForBlocks;
genesis 1730 if (!pfrom->fClient &&
genesis 1731 (pfrom->nVersion < 32000 || pfrom->nVersion >= 32400) &&
genesis 1732 (nAskedForBlocks < 1 || vNodes.size() <= 1))
genesis 1733 {
genesis 1734 nAskedForBlocks++;
genesis 1735 pfrom->PushGetBlocks(pindexBest, uint256(0));
genesis 1736 }
genesis 1737
genesis 1738 pfrom->fSuccessfullyConnected = true;
genesis 1739
genesis 1740 printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);
genesis 1741
genesis 1742 cPeerBlockCounts.input(pfrom->nStartingHeight);
genesis 1743 }
genesis 1744
genesis 1745
genesis 1746 else if (pfrom->nVersion == 0)
genesis 1747 {
genesis 1748
genesis 1749 pfrom->Misbehaving(1);
genesis 1750 return false;
genesis 1751 }
genesis 1752
genesis 1753
genesis 1754 else if (strCommand == "verack")
genesis 1755 {
genesis 1756 pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1757 }
genesis 1758
genesis 1759
genesis 1760 else if (strCommand == "addr")
genesis 1761 {
genesis 1762 vector<CAddress> vAddr;
genesis 1763 vRecv >> vAddr;
genesis 1764
genesis 1765
genesis 1766 if (pfrom->nVersion < 209)
genesis 1767 return true;
genesis 1768 if (pfrom->nVersion < 31402 && mapAddresses.size() > 1000)
genesis 1769 return true;
genesis 1770 if (vAddr.size() > 1000)
genesis 1771 {
genesis 1772 pfrom->Misbehaving(20);
genesis 1773 return error("message addr size() = %d", vAddr.size());
genesis 1774 }
genesis 1775
genesis 1776
genesis 1777 CAddrDB addrDB;
genesis 1778 addrDB.TxnBegin();
genesis 1779 int64 nNow = GetAdjustedTime();
genesis 1780 int64 nSince = nNow - 10 * 60;
genesis 1781 BOOST_FOREACH(CAddress& addr, vAddr)
genesis 1782 {
genesis 1783 if (fShutdown)
genesis 1784 return true;
genesis 1785
genesis 1786 if (!addr.IsIPv4())
genesis 1787 continue;
genesis 1788 if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60)
genesis 1789 addr.nTime = nNow - 5 * 24 * 60 * 60;
genesis 1790 AddAddress(addr, 2 * 60 * 60, &addrDB);
genesis 1791 pfrom->AddAddressKnown(addr);
genesis 1792 if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable())
genesis 1793 {
genesis 1794
genesis 1795 CRITICAL_BLOCK(cs_vNodes)
genesis 1796 {
genesis 1797
genesis 1798
genesis 1799 static uint256 hashSalt;
genesis 1800 if (hashSalt == 0)
genesis 1801 RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
genesis 1802 uint256 hashRand = hashSalt ^ (((int64)addr.ip)<<32) ^ ((GetTime()+addr.ip)/(24*60*60));
genesis 1803 hashRand = Hash(BEGIN(hashRand), END(hashRand));
genesis 1804 multimap<uint256, CNode*> mapMix;
genesis 1805 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 1806 {
genesis 1807 if (pnode->nVersion < 31402)
genesis 1808 continue;
genesis 1809 unsigned int nPointer;
genesis 1810 memcpy(&nPointer, &pnode, sizeof(nPointer));
genesis 1811 uint256 hashKey = hashRand ^ nPointer;
genesis 1812 hashKey = Hash(BEGIN(hashKey), END(hashKey));
genesis 1813 mapMix.insert(make_pair(hashKey, pnode));
genesis 1814 }
genesis 1815 int nRelayNodes = 2;
genesis 1816 for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)
genesis 1817 ((*mi).second)->PushAddress(addr);
genesis 1818 }
genesis 1819 }
genesis 1820 }
genesis 1821 addrDB.TxnCommit();
genesis 1822 if (vAddr.size() < 1000)
genesis 1823 pfrom->fGetAddr = false;
genesis 1824 }
genesis 1825
genesis 1826
genesis 1827 else if (strCommand == "inv")
genesis 1828 {
genesis 1829 vector<CInv> vInv;
genesis 1830 vRecv >> vInv;
genesis 1831 if (vInv.size() > 50000)
genesis 1832 {
genesis 1833 pfrom->Misbehaving(20);
genesis 1834 return error("message inv size() = %d", vInv.size());
genesis 1835 }
genesis 1836
genesis 1837 CTxDB txdb("r");
genesis 1838 BOOST_FOREACH(const CInv& inv, vInv)
genesis 1839 {
genesis 1840 if (fShutdown)
genesis 1841 return true;
genesis 1842 pfrom->AddInventoryKnown(inv);
genesis 1843
genesis 1844 bool fAlreadyHave = AlreadyHave(txdb, inv);
genesis 1845 if (fDebug)
genesis 1846 printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");
genesis 1847
genesis 1848 if (!fAlreadyHave)
genesis 1849 pfrom->AskFor(inv);
genesis 1850
genesis 1851
genesis 1852 Inventory(inv.hash);
genesis 1853 }
genesis 1854 }
genesis 1855
genesis 1856
genesis 1857 else if (strCommand == "getdata")
genesis 1858 {
genesis 1859 vector<CInv> vInv;
genesis 1860 vRecv >> vInv;
genesis 1861 if (vInv.size() > 50000)
genesis 1862 {
genesis 1863 pfrom->Misbehaving(20);
genesis 1864 return error("message getdata size() = %d", vInv.size());
genesis 1865 }
genesis 1866
genesis 1867 BOOST_FOREACH(const CInv& inv, vInv)
genesis 1868 {
genesis 1869 if (fShutdown)
genesis 1870 return true;
genesis 1871 printf("received getdata for: %s\n", inv.ToString().c_str());
genesis 1872
genesis 1873 if (inv.type == MSG_BLOCK)
genesis 1874 {
genesis 1875
genesis 1876 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(inv.hash);
genesis 1877 if (mi != mapBlockIndex.end())
genesis 1878 {
genesis 1879 CBlock block;
genesis 1880 block.ReadFromDisk((*mi).second);
genesis 1881 pfrom->PushMessage("block", block);
genesis 1882
genesis 1883
genesis 1884 if (inv.hash == pfrom->hashContinue)
genesis 1885 {
genesis 1886
genesis 1887
genesis 1888
genesis 1889 vector<CInv> vInv;
genesis 1890 vInv.push_back(CInv(MSG_BLOCK, hashBestChain));
genesis 1891 pfrom->PushMessage("inv", vInv);
genesis 1892 pfrom->hashContinue = 0;
genesis 1893 }
genesis 1894 }
genesis 1895 }
genesis 1896 else if (inv.IsKnownType())
genesis 1897 {
genesis 1898
genesis 1899 CRITICAL_BLOCK(cs_mapRelay)
genesis 1900 {
genesis 1901 map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);
genesis 1902 if (mi != mapRelay.end())
genesis 1903 pfrom->PushMessage(inv.GetCommand(), (*mi).second);
genesis 1904 }
genesis 1905 }
malleus_mikehearn... 1906 else
malleus_mikehearn... 1907 {
malleus_mikehearn... 1908 pfrom->Misbehaving(100);
malleus_mikehearn... 1909 return error("BANNED peer issuing unknown inv type.");
malleus_mikehearn... 1910 }
genesis 1911
genesis 1912
genesis 1913 Inventory(inv.hash);
genesis 1914 }
genesis 1915 }
genesis 1916
genesis 1917
genesis 1918 else if (strCommand == "getblocks")
genesis 1919 {
genesis 1920 CBlockLocator locator;
genesis 1921 uint256 hashStop;
genesis 1922 vRecv >> locator >> hashStop;
genesis 1923
genesis 1924
genesis 1925 CBlockIndex* pindex = locator.GetBlockIndex();
genesis 1926
genesis 1927
genesis 1928 if (pindex)
genesis 1929 pindex = pindex->pnext;
genesis 1930 int nLimit = 500 + locator.GetDistanceBack();
genesis 1931 unsigned int nBytes = 0;
genesis 1932 printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
genesis 1933 for (; pindex; pindex = pindex->pnext)
genesis 1934 {
genesis 1935 if (pindex->GetBlockHash() == hashStop)
genesis 1936 {
genesis 1937 printf(" getblocks stopping at %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes);
genesis 1938 break;
genesis 1939 }
genesis 1940 pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
genesis 1941 CBlock block;
genesis 1942 block.ReadFromDisk(pindex, true);
genesis 1943 nBytes += block.GetSerializeSize(SER_NETWORK);
genesis 1944 if (--nLimit <= 0 || nBytes >= SendBufferSize()/2)
genesis 1945 {
genesis 1946
genesis 1947
genesis 1948 printf(" getblocks stopping at limit %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes);
genesis 1949 pfrom->hashContinue = pindex->GetBlockHash();
genesis 1950 break;
genesis 1951 }
genesis 1952 }
genesis 1953 }
genesis 1954
genesis 1955
genesis 1956 else if (strCommand == "getheaders")
genesis 1957 {
genesis 1958 CBlockLocator locator;
genesis 1959 uint256 hashStop;
genesis 1960 vRecv >> locator >> hashStop;
genesis 1961
genesis 1962 CBlockIndex* pindex = NULL;
genesis 1963 if (locator.IsNull())
genesis 1964 {
genesis 1965
genesis 1966 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashStop);
genesis 1967 if (mi == mapBlockIndex.end())
genesis 1968 return true;
genesis 1969 pindex = (*mi).second;
genesis 1970 }
genesis 1971 else
genesis 1972 {
genesis 1973
genesis 1974 pindex = locator.GetBlockIndex();
genesis 1975 if (pindex)
genesis 1976 pindex = pindex->pnext;
genesis 1977 }
genesis 1978
genesis 1979 vector<CBlock> vHeaders;
genesis 1980 int nLimit = 2000 + locator.GetDistanceBack();
genesis 1981 printf("getheaders %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
genesis 1982 for (; pindex; pindex = pindex->pnext)
genesis 1983 {
genesis 1984 vHeaders.push_back(pindex->GetBlockHeader());
genesis 1985 if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop)
genesis 1986 break;
genesis 1987 }
genesis 1988 pfrom->PushMessage("headers", vHeaders);
genesis 1989 }
genesis 1990
genesis 1991
genesis 1992 else if (strCommand == "tx")
genesis 1993 {
genesis 1994 vector<uint256> vWorkQueue;
genesis 1995 CDataStream vMsg(vRecv);
genesis 1996 CTransaction tx;
genesis 1997 vRecv >> tx;
genesis 1998
genesis 1999 CInv inv(MSG_TX, tx.GetHash());
genesis 2000 pfrom->AddInventoryKnown(inv);
genesis 2001
genesis 2002 bool fMissingInputs = false;
genesis 2003 if (tx.AcceptToMemoryPool(true, &fMissingInputs))
genesis 2004 {
genesis 2005 SyncWithWallets(tx, NULL, true);
genesis 2006 RelayMessage(inv, vMsg);
genesis 2007 mapAlreadyAskedFor.erase(inv);
genesis 2008 vWorkQueue.push_back(inv.hash);
genesis 2009 }
genesis 2010 else if (fMissingInputs)
genesis 2011 {
asciilifeform_tx-... 2012 printf("REJECTED orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
genesis 2013 }
genesis 2014 if (tx.nDoS) pfrom->Misbehaving(tx.nDoS);
genesis 2015 }
genesis 2016
genesis 2017
genesis 2018 else if (strCommand == "block")
genesis 2019 {
genesis 2020 CBlock block;
genesis 2021 vRecv >> block;
genesis 2022
genesis 2023 printf("received block %s\n", block.GetHash().ToString().substr(0,20).c_str());
genesis 2024
genesis 2025
genesis 2026 CInv inv(MSG_BLOCK, block.GetHash());
genesis 2027 pfrom->AddInventoryKnown(inv);
genesis 2028
genesis 2029 if (ProcessBlock(pfrom, &block))
genesis 2030 mapAlreadyAskedFor.erase(inv);
genesis 2031 if (block.nDoS) pfrom->Misbehaving(block.nDoS);
genesis 2032 }
genesis 2033
genesis 2034
genesis 2035 else if (strCommand == "getaddr")
genesis 2036 {
genesis 2037
genesis 2038 pfrom->vAddrToSend.clear();
genesis 2039 int64 nSince = GetAdjustedTime() - 3 * 60 * 60;
genesis 2040 CRITICAL_BLOCK(cs_mapAddresses)
genesis 2041 {
genesis 2042 unsigned int nCount = 0;
genesis 2043 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
genesis 2044 {
genesis 2045 const CAddress& addr = item.second;
genesis 2046 if (addr.nTime > nSince)
genesis 2047 nCount++;
genesis 2048 }
genesis 2049 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
genesis 2050 {
genesis 2051 const CAddress& addr = item.second;
genesis 2052 if (addr.nTime > nSince && GetRand(nCount) < 2500)
genesis 2053 pfrom->PushAddress(addr);
genesis 2054 }
genesis 2055 }
genesis 2056 }
genesis 2057
genesis 2058
genesis 2059 else if (strCommand == "checkorder")
genesis 2060 {
genesis 2061 uint256 hashReply;
genesis 2062 vRecv >> hashReply;
genesis 2063
genesis 2064 if (!GetBoolArg("-allowreceivebyip"))
genesis 2065 {
genesis 2066 pfrom->PushMessage("reply", hashReply, (int)2, string(""));
genesis 2067 return true;
genesis 2068 }
genesis 2069
genesis 2070 CWalletTx order;
genesis 2071 vRecv >> order;
genesis 2072
genesis 2073
genesis 2074
genesis 2075
genesis 2076 if (!mapReuseKey.count(pfrom->addr.ip))
genesis 2077 pwalletMain->GetKeyFromPool(mapReuseKey[pfrom->addr.ip], true);
genesis 2078
genesis 2079
genesis 2080 CScript scriptPubKey;
genesis 2081 scriptPubKey << mapReuseKey[pfrom->addr.ip] << OP_CHECKSIG;
genesis 2082 pfrom->PushMessage("reply", hashReply, (int)0, scriptPubKey);
genesis 2083 }
genesis 2084
genesis 2085
genesis 2086 else if (strCommand == "reply")
genesis 2087 {
genesis 2088 uint256 hashReply;
genesis 2089 vRecv >> hashReply;
genesis 2090
genesis 2091 CRequestTracker tracker;
genesis 2092 CRITICAL_BLOCK(pfrom->cs_mapRequests)
genesis 2093 {
genesis 2094 map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);
genesis 2095 if (mi != pfrom->mapRequests.end())
genesis 2096 {
genesis 2097 tracker = (*mi).second;
genesis 2098 pfrom->mapRequests.erase(mi);
genesis 2099 }
genesis 2100 }
genesis 2101 if (!tracker.IsNull())
genesis 2102 tracker.fn(tracker.param1, vRecv);
genesis 2103 }
genesis 2104
genesis 2105
genesis 2106 else if (strCommand == "ping")
genesis 2107 {
genesis 2108 }
genesis 2109
genesis 2110
genesis 2111 else
genesis 2112 {
malleus_mikehearn... 2113
malleus_mikehearn... 2114 pfrom->Misbehaving(100);
malleus_mikehearn... 2115 return error("BANNED peer issuing heathen command.");
genesis 2116 }
genesis 2117
genesis 2118
genesis 2119
genesis 2120 if (pfrom->fNetworkNode)
genesis 2121 if (strCommand == "version" || strCommand == "addr" || strCommand == "inv" || strCommand == "getdata" || strCommand == "ping")
genesis 2122 AddressCurrentlyConnected(pfrom->addr);
genesis 2123
genesis 2124
genesis 2125 return true;
genesis 2126 }
genesis 2127
genesis 2128 bool ProcessMessages(CNode* pfrom)
genesis 2129 {
genesis 2130 CDataStream& vRecv = pfrom->vRecv;
genesis 2131 if (vRecv.empty())
genesis 2132 return true;
genesis 2133
genesis 2134
genesis 2135
genesis 2136
genesis 2137
genesis 2138
genesis 2139
genesis 2140
genesis 2141
genesis 2142
genesis 2143
genesis 2144
genesis 2145 loop
genesis 2146 {
genesis 2147
genesis 2148 CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));
genesis 2149 int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());
genesis 2150 if (vRecv.end() - pstart < nHeaderSize)
genesis 2151 {
genesis 2152 if (vRecv.size() > nHeaderSize)
genesis 2153 {
genesis 2154 printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");
genesis 2155 vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);
genesis 2156 }
genesis 2157 break;
genesis 2158 }
genesis 2159 if (pstart - vRecv.begin() > 0)
genesis 2160 printf("\n\nPROCESSMESSAGE SKIPPED %d BYTES\n\n", pstart - vRecv.begin());
genesis 2161 vRecv.erase(vRecv.begin(), pstart);
genesis 2162
genesis 2163
genesis 2164 vector<char> vHeaderSave(vRecv.begin(), vRecv.begin() + nHeaderSize);
genesis 2165 CMessageHeader hdr;
genesis 2166 vRecv >> hdr;
genesis 2167 if (!hdr.IsValid())
genesis 2168 {
genesis 2169 printf("\n\nPROCESSMESSAGE: ERRORS IN HEADER %s\n\n\n", hdr.GetCommand().c_str());
genesis 2170 continue;
genesis 2171 }
genesis 2172 string strCommand = hdr.GetCommand();
genesis 2173
genesis 2174
genesis 2175 unsigned int nMessageSize = hdr.nMessageSize;
genesis 2176 if (nMessageSize > MAX_SIZE)
genesis 2177 {
genesis 2178 printf("ProcessMessage(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
genesis 2179 continue;
genesis 2180 }
genesis 2181 if (nMessageSize > vRecv.size())
genesis 2182 {
genesis 2183
genesis 2184 vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());
genesis 2185 break;
genesis 2186 }
genesis 2187
genesis 2188
genesis 2189 if (vRecv.GetVersion() >= 209)
genesis 2190 {
genesis 2191 uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
genesis 2192 unsigned int nChecksum = 0;
genesis 2193 memcpy(&nChecksum, &hash, sizeof(nChecksum));
genesis 2194 if (nChecksum != hdr.nChecksum)
genesis 2195 {
genesis 2196 printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
genesis 2197 strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
genesis 2198 continue;
genesis 2199 }
genesis 2200 }
genesis 2201
genesis 2202
genesis 2203 CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);
genesis 2204 vRecv.ignore(nMessageSize);
genesis 2205
genesis 2206
genesis 2207 bool fRet = false;
genesis 2208 try
genesis 2209 {
genesis 2210 CRITICAL_BLOCK(cs_main)
genesis 2211 fRet = ProcessMessage(pfrom, strCommand, vMsg);
genesis 2212 if (fShutdown)
genesis 2213 return true;
genesis 2214 }
genesis 2215 catch (std::ios_base::failure& e)
genesis 2216 {
genesis 2217 if (strstr(e.what(), "end of data"))
genesis 2218 {
genesis 2219
genesis 2220 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());
genesis 2221 }
genesis 2222 else if (strstr(e.what(), "size too large"))
genesis 2223 {
genesis 2224
genesis 2225 printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
genesis 2226 }
genesis 2227 else
genesis 2228 {
genesis 2229 PrintExceptionContinue(&e, "ProcessMessage()");
genesis 2230 }
genesis 2231 }
genesis 2232 catch (std::exception& e) {
genesis 2233 PrintExceptionContinue(&e, "ProcessMessage()");
genesis 2234 } catch (...) {
genesis 2235 PrintExceptionContinue(NULL, "ProcessMessage()");
genesis 2236 }
genesis 2237
genesis 2238 if (!fRet)
genesis 2239 printf("ProcessMessage(%s, %u bytes) FAILED\n", strCommand.c_str(), nMessageSize);
genesis 2240 }
genesis 2241
genesis 2242 vRecv.Compact();
genesis 2243 return true;
genesis 2244 }
genesis 2245
genesis 2246
genesis 2247 bool SendMessages(CNode* pto, bool fSendTrickle)
genesis 2248 {
genesis 2249 CRITICAL_BLOCK(cs_main)
genesis 2250 {
genesis 2251
genesis 2252 if (pto->nVersion == 0)
genesis 2253 return true;
genesis 2254
genesis 2255
genesis 2256 if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())
genesis 2257 pto->PushMessage("ping");
genesis 2258
genesis 2259
genesis 2260 ResendWalletTransactions();
genesis 2261
genesis 2262
genesis 2263 static int64 nLastRebroadcast;
genesis 2264 if (GetTime() - nLastRebroadcast > 24 * 60 * 60)
genesis 2265 {
genesis 2266 nLastRebroadcast = GetTime();
genesis 2267 CRITICAL_BLOCK(cs_vNodes)
genesis 2268 {
genesis 2269 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 2270 {
genesis 2271
genesis 2272 pnode->setAddrKnown.clear();
genesis 2273
genesis 2274
genesis 2275 if (addrLocalHost.IsRoutable() && !fUseProxy)
genesis 2276 {
genesis 2277 CAddress addr(addrLocalHost);
genesis 2278 addr.nTime = GetAdjustedTime();
genesis 2279 pnode->PushAddress(addr);
genesis 2280 }
genesis 2281 }
genesis 2282 }
genesis 2283 }
genesis 2284
genesis 2285
genesis 2286 static int64 nLastClear;
genesis 2287 if (nLastClear == 0)
genesis 2288 nLastClear = GetTime();
genesis 2289 if (GetTime() - nLastClear > 10 * 60 && vNodes.size() >= 3)
genesis 2290 {
genesis 2291 nLastClear = GetTime();
genesis 2292 CRITICAL_BLOCK(cs_mapAddresses)
genesis 2293 {
genesis 2294 CAddrDB addrdb;
genesis 2295 int64 nSince = GetAdjustedTime() - 14 * 24 * 60 * 60;
genesis 2296 for (map<vector<unsigned char>, CAddress>::iterator mi = mapAddresses.begin();
genesis 2297 mi != mapAddresses.end();)
genesis 2298 {
genesis 2299 const CAddress& addr = (*mi).second;
genesis 2300 if (addr.nTime < nSince)
genesis 2301 {
genesis 2302 if (mapAddresses.size() < 1000 || GetTime() > nLastClear + 20)
genesis 2303 break;
genesis 2304 addrdb.EraseAddress(addr);
genesis 2305 mapAddresses.erase(mi++);
genesis 2306 }
genesis 2307 else
genesis 2308 mi++;
genesis 2309 }
genesis 2310 }
genesis 2311 }
genesis 2312
genesis 2313
genesis 2314
genesis 2315
genesis 2316
genesis 2317 if (fSendTrickle)
genesis 2318 {
genesis 2319 vector<CAddress> vAddr;
genesis 2320 vAddr.reserve(pto->vAddrToSend.size());
genesis 2321 BOOST_FOREACH(const CAddress& addr, pto->vAddrToSend)
genesis 2322 {
genesis 2323
genesis 2324 if (pto->setAddrKnown.insert(addr).second)
genesis 2325 {
genesis 2326 vAddr.push_back(addr);
genesis 2327
genesis 2328 if (vAddr.size() >= 1000)
genesis 2329 {
genesis 2330 pto->PushMessage("addr", vAddr);
genesis 2331 vAddr.clear();
genesis 2332 }
genesis 2333 }
genesis 2334 }
genesis 2335 pto->vAddrToSend.clear();
genesis 2336 if (!vAddr.empty())
genesis 2337 pto->PushMessage("addr", vAddr);
genesis 2338 }
genesis 2339
genesis 2340
genesis 2341
genesis 2342
genesis 2343
genesis 2344 vector<CInv> vInv;
genesis 2345 vector<CInv> vInvWait;
genesis 2346 CRITICAL_BLOCK(pto->cs_inventory)
genesis 2347 {
genesis 2348 vInv.reserve(pto->vInventoryToSend.size());
genesis 2349 vInvWait.reserve(pto->vInventoryToSend.size());
genesis 2350 BOOST_FOREACH(const CInv& inv, pto->vInventoryToSend)
genesis 2351 {
genesis 2352 if (pto->setInventoryKnown.count(inv))
genesis 2353 continue;
genesis 2354
genesis 2355
genesis 2356 if (inv.type == MSG_TX && !fSendTrickle)
genesis 2357 {
genesis 2358
genesis 2359 static uint256 hashSalt;
genesis 2360 if (hashSalt == 0)
genesis 2361 RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
genesis 2362 uint256 hashRand = inv.hash ^ hashSalt;
genesis 2363 hashRand = Hash(BEGIN(hashRand), END(hashRand));
genesis 2364 bool fTrickleWait = ((hashRand & 3) != 0);
genesis 2365
genesis 2366
genesis 2367 if (!fTrickleWait)
genesis 2368 {
genesis 2369 CWalletTx wtx;
genesis 2370 if (GetTransaction(inv.hash, wtx))
genesis 2371 if (wtx.fFromMe)
genesis 2372 fTrickleWait = true;
genesis 2373 }
genesis 2374
genesis 2375 if (fTrickleWait)
genesis 2376 {
genesis 2377 vInvWait.push_back(inv);
genesis 2378 continue;
genesis 2379 }
genesis 2380 }
genesis 2381
genesis 2382
genesis 2383 if (pto->setInventoryKnown.insert(inv).second)
genesis 2384 {
genesis 2385 vInv.push_back(inv);
genesis 2386 if (vInv.size() >= 1000)
genesis 2387 {
genesis 2388 pto->PushMessage("inv", vInv);
genesis 2389 vInv.clear();
genesis 2390 }
genesis 2391 }
genesis 2392 }
genesis 2393 pto->vInventoryToSend = vInvWait;
genesis 2394 }
genesis 2395 if (!vInv.empty())
genesis 2396 pto->PushMessage("inv", vInv);
genesis 2397
genesis 2398
genesis 2399
genesis 2400
genesis 2401
genesis 2402 vector<CInv> vGetData;
genesis 2403 int64 nNow = GetTime() * 1000000;
genesis 2404 CTxDB txdb("r");
genesis 2405 while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow)
genesis 2406 {
genesis 2407 const CInv& inv = (*pto->mapAskFor.begin()).second;
genesis 2408 if (!AlreadyHave(txdb, inv))
genesis 2409 {
genesis 2410 printf("sending getdata: %s\n", inv.ToString().c_str());
genesis 2411 vGetData.push_back(inv);
genesis 2412 if (vGetData.size() >= 1000)
genesis 2413 {
genesis 2414 pto->PushMessage("getdata", vGetData);
genesis 2415 vGetData.clear();
genesis 2416 }
genesis 2417 }
genesis 2418 mapAlreadyAskedFor[inv] = nNow;
genesis 2419 pto->mapAskFor.erase(pto->mapAskFor.begin());
genesis 2420 }
genesis 2421 if (!vGetData.empty())
genesis 2422 pto->PushMessage("getdata", vGetData);
genesis 2423
genesis 2424 }
genesis 2425 return true;
genesis 2426 }
genesis 2427
genesis 2428
genesis 2429
genesis 2430
genesis 2431
genesis 2432
genesis 2433
genesis 2434
genesis 2435
genesis 2436
genesis 2437
genesis 2438
genesis 2439
genesis 2440
genesis 2441
genesis 2442
genesis 2443
genesis 2444
genesis 2445
genesis 2446 int static FormatHashBlocks(void* pbuffer, unsigned int len)
genesis 2447 {
genesis 2448 unsigned char* pdata = (unsigned char*)pbuffer;
genesis 2449 unsigned int blocks = 1 + ((len + 8) / 64);
genesis 2450 unsigned char* pend = pdata + 64 * blocks;
genesis 2451 memset(pdata + len, 0, 64 * blocks - len);
genesis 2452 pdata[len] = 0x80;
genesis 2453 unsigned int bits = len * 8;
genesis 2454 pend[-1] = (bits >> 0) & 0xff;
genesis 2455 pend[-2] = (bits >> 8) & 0xff;
genesis 2456 pend[-3] = (bits >> 16) & 0xff;
genesis 2457 pend[-4] = (bits >> 24) & 0xff;
genesis 2458 return blocks;
genesis 2459 }
genesis 2460
genesis 2461 static const unsigned int pSHA256InitState[8] =
genesis 2462 {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
genesis 2463
genesis 2464 void SHA256Transform(void* pstate, void* pinput, const void* pinit)
genesis 2465 {
genesis 2466 SHA256_CTX ctx;
genesis 2467 unsigned char data[64];
genesis 2468
genesis 2469 SHA256_Init(&ctx);
genesis 2470
genesis 2471 for (int i = 0; i < 16; i++)
genesis 2472 ((uint32_t*)data)[i] = ByteReverse(((uint32_t*)pinput)[i]);
genesis 2473
genesis 2474 for (int i = 0; i < 8; i++)
genesis 2475 ctx.h[i] = ((uint32_t*)pinit)[i];
genesis 2476
genesis 2477 SHA256_Update(&ctx, data, sizeof(data));
genesis 2478 for (int i = 0; i < 8; i++)
genesis 2479 ((uint32_t*)pstate)[i] = ctx.h[i];
genesis 2480 }
genesis 2481
genesis 2482
genesis 2483
genesis 2484
genesis 2485
genesis 2486
genesis 2487
genesis 2488
genesis 2489 unsigned int static ScanHash_CryptoPP(char* pmidstate, char* pdata, char* phash1, char* phash, unsigned int& nHashesDone)
genesis 2490 {
genesis 2491 unsigned int& nNonce = *(unsigned int*)(pdata + 12);
genesis 2492 for (;;)
genesis 2493 {
genesis 2494
genesis 2495
genesis 2496
genesis 2497 nNonce++;
genesis 2498 SHA256Transform(phash1, pdata, pmidstate);
genesis 2499 SHA256Transform(phash, phash1, pSHA256InitState);
genesis 2500
genesis 2501
genesis 2502
genesis 2503 if (((unsigned short*)phash)[14] == 0)
genesis 2504 return nNonce;
genesis 2505
genesis 2506
genesis 2507 if ((nNonce & 0xffff) == 0)
genesis 2508 {
genesis 2509 nHashesDone = 0xffff+1;
genesis 2510 return -1;
genesis 2511 }
genesis 2512 }
genesis 2513 }
genesis 2514
genesis 2515
genesis 2516 class COrphan
genesis 2517 {
genesis 2518 public:
genesis 2519 CTransaction* ptx;
genesis 2520 set<uint256> setDependsOn;
genesis 2521 double dPriority;
genesis 2522
genesis 2523 COrphan(CTransaction* ptxIn)
genesis 2524 {
genesis 2525 ptx = ptxIn;
genesis 2526 dPriority = 0;
genesis 2527 }
genesis 2528
genesis 2529 void print() const
genesis 2530 {
genesis 2531 printf("COrphan(hash=%s, dPriority=%.1f)\n", ptx->GetHash().ToString().substr(0,10).c_str(), dPriority);
genesis 2532 BOOST_FOREACH(uint256 hash, setDependsOn)
genesis 2533 printf(" setDependsOn %s\n", hash.ToString().substr(0,10).c_str());
genesis 2534 }
genesis 2535 };
genesis 2536
genesis 2537
genesis 2538 CBlock* CreateNewBlock(CReserveKey& reservekey)
genesis 2539 {
genesis 2540 CBlockIndex* pindexPrev = pindexBest;
genesis 2541
genesis 2542
genesis 2543 auto_ptr<CBlock> pblock(new CBlock());
genesis 2544 if (!pblock.get())
genesis 2545 return NULL;
genesis 2546
genesis 2547
genesis 2548 CTransaction txNew;
genesis 2549 txNew.vin.resize(1);
genesis 2550 txNew.vin[0].prevout.SetNull();
genesis 2551 txNew.vout.resize(1);
genesis 2552 txNew.vout[0].scriptPubKey << reservekey.GetReservedKey() << OP_CHECKSIG;
genesis 2553
genesis 2554
genesis 2555 pblock->vtx.push_back(txNew);
genesis 2556
genesis 2557
genesis 2558 int64 nFees = 0;
genesis 2559 CRITICAL_BLOCK(cs_main)
genesis 2560 CRITICAL_BLOCK(cs_mapTransactions)
genesis 2561 {
genesis 2562 CTxDB txdb("r");
genesis 2563
genesis 2564
genesis 2565 list<COrphan> vOrphan;
genesis 2566 map<uint256, vector<COrphan*> > mapDependers;
genesis 2567 multimap<double, CTransaction*> mapPriority;
genesis 2568 for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi)
genesis 2569 {
genesis 2570 CTransaction& tx = (*mi).second;
genesis 2571 if (tx.IsCoinBase() || !tx.IsFinal())
genesis 2572 continue;
genesis 2573
genesis 2574 COrphan* porphan = NULL;
genesis 2575 double dPriority = 0;
genesis 2576 BOOST_FOREACH(const CTxIn& txin, tx.vin)
genesis 2577 {
genesis 2578
genesis 2579 CTransaction txPrev;
genesis 2580 CTxIndex txindex;
genesis 2581 if (!txPrev.ReadFromDisk(txdb, txin.prevout, txindex))
genesis 2582 {
genesis 2583
genesis 2584 if (!porphan)
genesis 2585 {
genesis 2586
genesis 2587 vOrphan.push_back(COrphan(&tx));
genesis 2588 porphan = &vOrphan.back();
genesis 2589 }
genesis 2590 mapDependers[txin.prevout.hash].push_back(porphan);
genesis 2591 porphan->setDependsOn.insert(txin.prevout.hash);
genesis 2592 continue;
genesis 2593 }
genesis 2594 int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
genesis 2595
genesis 2596
genesis 2597 int nConf = txindex.GetDepthInMainChain();
genesis 2598
genesis 2599 dPriority += (double)nValueIn * nConf;
genesis 2600
genesis 2601 if (fDebug && GetBoolArg("-printpriority"))
genesis 2602 printf("priority nValueIn=%-12I64d nConf=%-5d dPriority=%-20.1f\n", nValueIn, nConf, dPriority);
genesis 2603 }
genesis 2604
genesis 2605
genesis 2606 dPriority /= ::GetSerializeSize(tx, SER_NETWORK);
genesis 2607
genesis 2608 if (porphan)
genesis 2609 porphan->dPriority = dPriority;
genesis 2610 else
genesis 2611 mapPriority.insert(make_pair(-dPriority, &(*mi).second));
genesis 2612
genesis 2613 if (fDebug && GetBoolArg("-printpriority"))
genesis 2614 {
genesis 2615 printf("priority %-20.1f %s\n%s", dPriority, tx.GetHash().ToString().substr(0,10).c_str(), tx.ToString().c_str());
genesis 2616 if (porphan)
genesis 2617 porphan->print();
genesis 2618 printf("\n");
genesis 2619 }
genesis 2620 }
genesis 2621
genesis 2622
genesis 2623 map<uint256, CTxIndex> mapTestPool;
genesis 2624 uint64 nBlockSize = 1000;
genesis 2625 int nBlockSigOps = 100;
genesis 2626 while (!mapPriority.empty())
genesis 2627 {
genesis 2628
genesis 2629 double dPriority = -(*mapPriority.begin()).first;
genesis 2630 CTransaction& tx = *(*mapPriority.begin()).second;
genesis 2631 mapPriority.erase(mapPriority.begin());
genesis 2632
genesis 2633
genesis 2634 unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);
genesis 2635 if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE_GEN)
genesis 2636 continue;
genesis 2637 int nTxSigOps = tx.GetSigOpCount();
genesis 2638 if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS)
genesis 2639 continue;
genesis 2640
genesis 2641
genesis 2642 bool fAllowFree = (nBlockSize + nTxSize < 4000 || CTransaction::AllowFree(dPriority));
genesis 2643 int64 nMinFee = tx.GetMinFee(nBlockSize, fAllowFree);
genesis 2644
genesis 2645
genesis 2646
genesis 2647 map<uint256, CTxIndex> mapTestPoolTmp(mapTestPool);
genesis 2648 bool fInvalid;
genesis 2649 if (!tx.ConnectInputs(txdb, mapTestPoolTmp, CDiskTxPos(1,1,1), pindexPrev, nFees, false, true, nMinFee, fInvalid))
genesis 2650 continue;
genesis 2651 swap(mapTestPool, mapTestPoolTmp);
genesis 2652
genesis 2653
genesis 2654 pblock->vtx.push_back(tx);
genesis 2655 nBlockSize += nTxSize;
genesis 2656 nBlockSigOps += nTxSigOps;
genesis 2657
genesis 2658
genesis 2659 uint256 hash = tx.GetHash();
genesis 2660 if (mapDependers.count(hash))
genesis 2661 {
genesis 2662 BOOST_FOREACH(COrphan* porphan, mapDependers[hash])
genesis 2663 {
genesis 2664 if (!porphan->setDependsOn.empty())
genesis 2665 {
genesis 2666 porphan->setDependsOn.erase(hash);
genesis 2667 if (porphan->setDependsOn.empty())
genesis 2668 mapPriority.insert(make_pair(-porphan->dPriority, porphan->ptx));
genesis 2669 }
genesis 2670 }
genesis 2671 }
genesis 2672 }
genesis 2673 }
genesis 2674 pblock->vtx[0].vout[0].nValue = GetBlockValue(pindexPrev->nHeight+1, nFees);
genesis 2675
genesis 2676
genesis 2677 pblock->hashPrevBlock = pindexPrev->GetBlockHash();
genesis 2678 pblock->hashMerkleRoot = pblock->BuildMerkleTree();
genesis 2679 pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
genesis 2680 pblock->nBits = GetNextWorkRequired(pindexPrev, pblock.get());
genesis 2681 pblock->nNonce = 0;
genesis 2682
genesis 2683 return pblock.release();
genesis 2684 }
genesis 2685
genesis 2686
genesis 2687 void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce)
genesis 2688 {
genesis 2689
genesis 2690 static uint256 hashPrevBlock;
genesis 2691 if (hashPrevBlock != pblock->hashPrevBlock)
genesis 2692 {
genesis 2693 nExtraNonce = 0;
genesis 2694 hashPrevBlock = pblock->hashPrevBlock;
genesis 2695 }
genesis 2696 ++nExtraNonce;
genesis 2697 pblock->vtx[0].vin[0].scriptSig = CScript() << pblock->nTime << CBigNum(nExtraNonce);
genesis 2698 pblock->hashMerkleRoot = pblock->BuildMerkleTree();
genesis 2699 }
genesis 2700
genesis 2701
genesis 2702 void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1)
genesis 2703 {
genesis 2704
genesis 2705
genesis 2706
genesis 2707 struct
genesis 2708 {
genesis 2709 struct unnamed2
genesis 2710 {
genesis 2711 int nVersion;
genesis 2712 uint256 hashPrevBlock;
genesis 2713 uint256 hashMerkleRoot;
genesis 2714 unsigned int nTime;
genesis 2715 unsigned int nBits;
genesis 2716 unsigned int nNonce;
genesis 2717 }
genesis 2718 block;
genesis 2719 unsigned char pchPadding0[64];
genesis 2720 uint256 hash1;
genesis 2721 unsigned char pchPadding1[64];
genesis 2722 }
genesis 2723 tmp;
genesis 2724 memset(&tmp, 0, sizeof(tmp));
genesis 2725
genesis 2726 tmp.block.nVersion = pblock->nVersion;
genesis 2727 tmp.block.hashPrevBlock = pblock->hashPrevBlock;
genesis 2728 tmp.block.hashMerkleRoot = pblock->hashMerkleRoot;
genesis 2729 tmp.block.nTime = pblock->nTime;
genesis 2730 tmp.block.nBits = pblock->nBits;
genesis 2731 tmp.block.nNonce = pblock->nNonce;
genesis 2732
genesis 2733 FormatHashBlocks(&tmp.block, sizeof(tmp.block));
genesis 2734 FormatHashBlocks(&tmp.hash1, sizeof(tmp.hash1));
genesis 2735
genesis 2736
genesis 2737 for (int i = 0; i < sizeof(tmp)/4; i++)
genesis 2738 ((unsigned int*)&tmp)[i] = ByteReverse(((unsigned int*)&tmp)[i]);
genesis 2739
genesis 2740
genesis 2741 SHA256Transform(pmidstate, &tmp.block, pSHA256InitState);
genesis 2742
genesis 2743 memcpy(pdata, &tmp.block, 128);
genesis 2744 memcpy(phash1, &tmp.hash1, 64);
genesis 2745 }
genesis 2746
genesis 2747
genesis 2748 bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
genesis 2749 {
genesis 2750 uint256 hash = pblock->GetHash();
genesis 2751 uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
genesis 2752
genesis 2753 if (hash > hashTarget)
genesis 2754 return false;
genesis 2755
genesis 2756
genesis 2757 printf("BitcoinMiner:\n");
genesis 2758 printf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex().c_str(), hashTarget.GetHex().c_str());
genesis 2759 pblock->print();
genesis 2760 printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
genesis 2761 printf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue).c_str());
genesis 2762
genesis 2763
genesis 2764 CRITICAL_BLOCK(cs_main)
genesis 2765 {
genesis 2766 if (pblock->hashPrevBlock != hashBestChain)
genesis 2767 return error("BitcoinMiner : generated block is stale");
genesis 2768
genesis 2769
genesis 2770 reservekey.KeepKey();
genesis 2771
genesis 2772
genesis 2773 CRITICAL_BLOCK(wallet.cs_wallet)
genesis 2774 wallet.mapRequestCount[pblock->GetHash()] = 0;
genesis 2775
genesis 2776
genesis 2777 if (!ProcessBlock(NULL, pblock))
genesis 2778 return error("BitcoinMiner : ProcessBlock, block not accepted");
genesis 2779 }
genesis 2780
genesis 2781 return true;
genesis 2782 }
genesis 2783
genesis 2784 void static ThreadBitcoinMiner(void* parg);
genesis 2785
genesis 2786 void static BitcoinMiner(CWallet *pwallet)
genesis 2787 {
genesis 2788 printf("BitcoinMiner started\n");
genesis 2789 SetThreadPriority(THREAD_PRIORITY_LOWEST);
genesis 2790
genesis 2791
genesis 2792 CReserveKey reservekey(pwallet);
genesis 2793 unsigned int nExtraNonce = 0;
genesis 2794
genesis 2795 while (fGenerateBitcoins)
genesis 2796 {
genesis 2797 if (AffinityBugWorkaround(ThreadBitcoinMiner))
genesis 2798 return;
genesis 2799 if (fShutdown)
genesis 2800 return;
genesis 2801 while (vNodes.empty() || IsInitialBlockDownload())
genesis 2802 {
genesis 2803 Sleep(1000);
genesis 2804 if (fShutdown)
genesis 2805 return;
genesis 2806 if (!fGenerateBitcoins)
genesis 2807 return;
genesis 2808 }
genesis 2809
genesis 2810
genesis 2811
genesis 2812
genesis 2813
genesis 2814 unsigned int nTransactionsUpdatedLast = nTransactionsUpdated;
genesis 2815 CBlockIndex* pindexPrev = pindexBest;
genesis 2816
genesis 2817 auto_ptr<CBlock> pblock(CreateNewBlock(reservekey));
genesis 2818 if (!pblock.get())
genesis 2819 return;
genesis 2820 IncrementExtraNonce(pblock.get(), pindexPrev, nExtraNonce);
genesis 2821
genesis 2822 printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());
genesis 2823
genesis 2824
genesis 2825
genesis 2826
genesis 2827
genesis 2828 char pmidstatebuf[32+16]; char* pmidstate = alignup<16>(pmidstatebuf);
genesis 2829 char pdatabuf[128+16]; char* pdata = alignup<16>(pdatabuf);
genesis 2830 char phash1buf[64+16]; char* phash1 = alignup<16>(phash1buf);
genesis 2831
genesis 2832 FormatHashBuffers(pblock.get(), pmidstate, pdata, phash1);
genesis 2833
genesis 2834 unsigned int& nBlockTime = *(unsigned int*)(pdata + 64 + 4);
genesis 2835 unsigned int& nBlockNonce = *(unsigned int*)(pdata + 64 + 12);
genesis 2836
genesis 2837
genesis 2838
genesis 2839
genesis 2840
genesis 2841 int64 nStart = GetTime();
genesis 2842 uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
genesis 2843 uint256 hashbuf[2];
genesis 2844 uint256& hash = *alignup<16>(hashbuf);
genesis 2845 loop
genesis 2846 {
genesis 2847 unsigned int nHashesDone = 0;
genesis 2848 unsigned int nNonceFound;
genesis 2849
genesis 2850
genesis 2851 nNonceFound = ScanHash_CryptoPP(pmidstate, pdata + 64, phash1,
genesis 2852 (char*)&hash, nHashesDone);
genesis 2853
genesis 2854
genesis 2855 if (nNonceFound != -1)
genesis 2856 {
genesis 2857 for (int i = 0; i < sizeof(hash)/4; i++)
genesis 2858 ((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);
genesis 2859
genesis 2860 if (hash <= hashTarget)
genesis 2861 {
genesis 2862
genesis 2863 pblock->nNonce = ByteReverse(nNonceFound);
genesis 2864 assert(hash == pblock->GetHash());
genesis 2865
genesis 2866 SetThreadPriority(THREAD_PRIORITY_NORMAL);
genesis 2867 CheckWork(pblock.get(), *pwalletMain, reservekey);
genesis 2868 SetThreadPriority(THREAD_PRIORITY_LOWEST);
genesis 2869 break;
genesis 2870 }
genesis 2871 }
genesis 2872
genesis 2873
genesis 2874 static int64 nHashCounter;
genesis 2875 if (nHPSTimerStart == 0)
genesis 2876 {
genesis 2877 nHPSTimerStart = GetTimeMillis();
genesis 2878 nHashCounter = 0;
genesis 2879 }
genesis 2880 else
genesis 2881 nHashCounter += nHashesDone;
genesis 2882 if (GetTimeMillis() - nHPSTimerStart > 4000)
genesis 2883 {
genesis 2884 static CCriticalSection cs;
genesis 2885 CRITICAL_BLOCK(cs)
genesis 2886 {
genesis 2887 if (GetTimeMillis() - nHPSTimerStart > 4000)
genesis 2888 {
genesis 2889 dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
genesis 2890 nHPSTimerStart = GetTimeMillis();
genesis 2891 nHashCounter = 0;
genesis 2892 string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);
genesis 2893 UIThreadCall(boost::bind(CalledSetStatusBar, strStatus, 0));
genesis 2894 static int64 nLogTime;
genesis 2895 if (GetTime() - nLogTime > 30 * 60)
genesis 2896 {
genesis 2897 nLogTime = GetTime();
genesis 2898 printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
genesis 2899 printf("hashmeter %3d CPUs %6.0f khash/s\n", vnThreadsRunning[3], dHashesPerSec/1000.0);
genesis 2900 }
genesis 2901 }
genesis 2902 }
genesis 2903 }
genesis 2904
genesis 2905
genesis 2906 if (fShutdown)
genesis 2907 return;
genesis 2908 if (!fGenerateBitcoins)
genesis 2909 return;
genesis 2910 if (fLimitProcessors && vnThreadsRunning[3] > nLimitProcessors)
genesis 2911 return;
genesis 2912 if (vNodes.empty())
genesis 2913 break;
genesis 2914 if (nBlockNonce >= 0xffff0000)
genesis 2915 break;
genesis 2916 if (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)
genesis 2917 break;
genesis 2918 if (pindexPrev != pindexBest)
genesis 2919 break;
genesis 2920
genesis 2921
genesis 2922 pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
genesis 2923 nBlockTime = ByteReverse(pblock->nTime);
genesis 2924 }
genesis 2925 }
genesis 2926 }
genesis 2927
genesis 2928 void static ThreadBitcoinMiner(void* parg)
genesis 2929 {
genesis 2930 CWallet* pwallet = (CWallet*)parg;
genesis 2931 try
genesis 2932 {
genesis 2933 vnThreadsRunning[3]++;
genesis 2934 BitcoinMiner(pwallet);
genesis 2935 vnThreadsRunning[3]--;
genesis 2936 }
genesis 2937 catch (std::exception& e) {
genesis 2938 vnThreadsRunning[3]--;
genesis 2939 PrintException(&e, "ThreadBitcoinMiner()");
genesis 2940 } catch (...) {
genesis 2941 vnThreadsRunning[3]--;
genesis 2942 PrintException(NULL, "ThreadBitcoinMiner()");
genesis 2943 }
genesis 2944 UIThreadCall(boost::bind(CalledSetStatusBar, "", 0));
genesis 2945 nHPSTimerStart = 0;
genesis 2946 if (vnThreadsRunning[3] == 0)
genesis 2947 dHashesPerSec = 0;
genesis 2948 printf("ThreadBitcoinMiner exiting, %d threads remaining\n", vnThreadsRunning[3]);
genesis 2949 }
genesis 2950
genesis 2951
genesis 2952 void GenerateBitcoins(bool fGenerate, CWallet* pwallet)
genesis 2953 {
genesis 2954 if (fGenerateBitcoins != fGenerate)
genesis 2955 {
genesis 2956 fGenerateBitcoins = fGenerate;
genesis 2957 WriteSetting("fGenerateBitcoins", fGenerateBitcoins);
genesis 2958 MainFrameRepaint();
genesis 2959 }
genesis 2960 if (fGenerateBitcoins)
genesis 2961 {
genesis 2962 int nProcessors = boost::thread::hardware_concurrency();
genesis 2963 printf("%d processors\n", nProcessors);
genesis 2964 if (nProcessors < 1)
genesis 2965 nProcessors = 1;
genesis 2966 if (fLimitProcessors && nProcessors > nLimitProcessors)
genesis 2967 nProcessors = nLimitProcessors;
genesis 2968 int nAddThreads = nProcessors - vnThreadsRunning[3];
genesis 2969 printf("Starting %d BitcoinMiner threads\n", nAddThreads);
genesis 2970 for (int i = 0; i < nAddThreads; i++)
genesis 2971 {
genesis 2972 if (!CreateThread(ThreadBitcoinMiner, pwallet))
genesis 2973 printf("Error: CreateThread(ThreadBitcoinMiner) failed\n");
genesis 2974 Sleep(10);
genesis 2975 }
genesis 2976 }
genesis 2977 }