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
mod6_manifest 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
asciilifeform_agg... 1728
asciilifeform_agg... 1729 if (!pfrom->fClient)
genesis 1730 {
genesis 1731 pfrom->PushGetBlocks(pindexBest, uint256(0));
genesis 1732 }
genesis 1733
genesis 1734 pfrom->fSuccessfullyConnected = true;
genesis 1735
genesis 1736 printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);
genesis 1737
genesis 1738 cPeerBlockCounts.input(pfrom->nStartingHeight);
genesis 1739 }
genesis 1740
genesis 1741
genesis 1742 else if (pfrom->nVersion == 0)
genesis 1743 {
genesis 1744
genesis 1745 pfrom->Misbehaving(1);
genesis 1746 return false;
genesis 1747 }
genesis 1748
genesis 1749
genesis 1750 else if (strCommand == "verack")
genesis 1751 {
genesis 1752 pfrom->vRecv.SetVersion(min(pfrom->nVersion, VERSION));
genesis 1753 }
genesis 1754
genesis 1755
genesis 1756 else if (strCommand == "addr")
genesis 1757 {
genesis 1758 vector<CAddress> vAddr;
genesis 1759 vRecv >> vAddr;
genesis 1760
genesis 1761
genesis 1762 if (pfrom->nVersion < 209)
genesis 1763 return true;
genesis 1764 if (pfrom->nVersion < 31402 && mapAddresses.size() > 1000)
genesis 1765 return true;
genesis 1766 if (vAddr.size() > 1000)
genesis 1767 {
genesis 1768 pfrom->Misbehaving(20);
genesis 1769 return error("message addr size() = %d", vAddr.size());
genesis 1770 }
genesis 1771
genesis 1772
genesis 1773 CAddrDB addrDB;
genesis 1774 addrDB.TxnBegin();
genesis 1775 int64 nNow = GetAdjustedTime();
genesis 1776 int64 nSince = nNow - 10 * 60;
genesis 1777 BOOST_FOREACH(CAddress& addr, vAddr)
genesis 1778 {
genesis 1779 if (fShutdown)
genesis 1780 return true;
genesis 1781
genesis 1782 if (!addr.IsIPv4())
genesis 1783 continue;
genesis 1784 if (addr.nTime <= 100000000 || addr.nTime > nNow + 10 * 60)
genesis 1785 addr.nTime = nNow - 5 * 24 * 60 * 60;
genesis 1786 AddAddress(addr, 2 * 60 * 60, &addrDB);
genesis 1787 pfrom->AddAddressKnown(addr);
genesis 1788 if (addr.nTime > nSince && !pfrom->fGetAddr && vAddr.size() <= 10 && addr.IsRoutable())
genesis 1789 {
genesis 1790
genesis 1791 CRITICAL_BLOCK(cs_vNodes)
genesis 1792 {
genesis 1793
genesis 1794
genesis 1795 static uint256 hashSalt;
genesis 1796 if (hashSalt == 0)
genesis 1797 RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
genesis 1798 uint256 hashRand = hashSalt ^ (((int64)addr.ip)<<32) ^ ((GetTime()+addr.ip)/(24*60*60));
genesis 1799 hashRand = Hash(BEGIN(hashRand), END(hashRand));
genesis 1800 multimap<uint256, CNode*> mapMix;
genesis 1801 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 1802 {
genesis 1803 if (pnode->nVersion < 31402)
genesis 1804 continue;
genesis 1805 unsigned int nPointer;
genesis 1806 memcpy(&nPointer, &pnode, sizeof(nPointer));
genesis 1807 uint256 hashKey = hashRand ^ nPointer;
genesis 1808 hashKey = Hash(BEGIN(hashKey), END(hashKey));
genesis 1809 mapMix.insert(make_pair(hashKey, pnode));
genesis 1810 }
genesis 1811 int nRelayNodes = 2;
genesis 1812 for (multimap<uint256, CNode*>::iterator mi = mapMix.begin(); mi != mapMix.end() && nRelayNodes-- > 0; ++mi)
genesis 1813 ((*mi).second)->PushAddress(addr);
genesis 1814 }
genesis 1815 }
genesis 1816 }
genesis 1817 addrDB.TxnCommit();
genesis 1818 if (vAddr.size() < 1000)
genesis 1819 pfrom->fGetAddr = false;
genesis 1820 }
genesis 1821
genesis 1822
genesis 1823 else if (strCommand == "inv")
genesis 1824 {
genesis 1825 vector<CInv> vInv;
genesis 1826 vRecv >> vInv;
genesis 1827 if (vInv.size() > 50000)
genesis 1828 {
genesis 1829 pfrom->Misbehaving(20);
genesis 1830 return error("message inv size() = %d", vInv.size());
genesis 1831 }
genesis 1832
genesis 1833 CTxDB txdb("r");
genesis 1834 BOOST_FOREACH(const CInv& inv, vInv)
genesis 1835 {
genesis 1836 if (fShutdown)
genesis 1837 return true;
genesis 1838 pfrom->AddInventoryKnown(inv);
genesis 1839
genesis 1840 bool fAlreadyHave = AlreadyHave(txdb, inv);
genesis 1841 if (fDebug)
genesis 1842 printf(" got inventory: %s %s\n", inv.ToString().c_str(), fAlreadyHave ? "have" : "new");
genesis 1843
genesis 1844 if (!fAlreadyHave)
genesis 1845 pfrom->AskFor(inv);
genesis 1846
genesis 1847
genesis 1848 Inventory(inv.hash);
genesis 1849 }
genesis 1850 }
genesis 1851
genesis 1852
genesis 1853 else if (strCommand == "getdata")
genesis 1854 {
genesis 1855 vector<CInv> vInv;
genesis 1856 vRecv >> vInv;
genesis 1857 if (vInv.size() > 50000)
genesis 1858 {
genesis 1859 pfrom->Misbehaving(20);
genesis 1860 return error("message getdata size() = %d", vInv.size());
genesis 1861 }
genesis 1862
genesis 1863 BOOST_FOREACH(const CInv& inv, vInv)
genesis 1864 {
genesis 1865 if (fShutdown)
genesis 1866 return true;
genesis 1867 printf("received getdata for: %s\n", inv.ToString().c_str());
genesis 1868
genesis 1869 if (inv.type == MSG_BLOCK)
genesis 1870 {
genesis 1871
genesis 1872 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(inv.hash);
genesis 1873 if (mi != mapBlockIndex.end())
genesis 1874 {
genesis 1875 CBlock block;
genesis 1876 block.ReadFromDisk((*mi).second);
genesis 1877 pfrom->PushMessage("block", block);
genesis 1878
genesis 1879
genesis 1880 if (inv.hash == pfrom->hashContinue)
genesis 1881 {
genesis 1882
genesis 1883
genesis 1884
genesis 1885 vector<CInv> vInv;
genesis 1886 vInv.push_back(CInv(MSG_BLOCK, hashBestChain));
genesis 1887 pfrom->PushMessage("inv", vInv);
genesis 1888 pfrom->hashContinue = 0;
genesis 1889 }
genesis 1890 }
genesis 1891 }
genesis 1892 else if (inv.IsKnownType())
genesis 1893 {
genesis 1894
genesis 1895 CRITICAL_BLOCK(cs_mapRelay)
genesis 1896 {
genesis 1897 map<CInv, CDataStream>::iterator mi = mapRelay.find(inv);
genesis 1898 if (mi != mapRelay.end())
genesis 1899 pfrom->PushMessage(inv.GetCommand(), (*mi).second);
genesis 1900 }
genesis 1901 }
malleus_mikehearn... 1902 else
malleus_mikehearn... 1903 {
malleus_mikehearn... 1904 pfrom->Misbehaving(100);
malleus_mikehearn... 1905 return error("BANNED peer issuing unknown inv type.");
malleus_mikehearn... 1906 }
genesis 1907
genesis 1908
genesis 1909 Inventory(inv.hash);
genesis 1910 }
genesis 1911 }
genesis 1912
genesis 1913
genesis 1914 else if (strCommand == "getblocks")
genesis 1915 {
genesis 1916 CBlockLocator locator;
genesis 1917 uint256 hashStop;
genesis 1918 vRecv >> locator >> hashStop;
genesis 1919
genesis 1920
genesis 1921 CBlockIndex* pindex = locator.GetBlockIndex();
genesis 1922
genesis 1923
genesis 1924 if (pindex)
genesis 1925 pindex = pindex->pnext;
genesis 1926 int nLimit = 500 + locator.GetDistanceBack();
genesis 1927 unsigned int nBytes = 0;
genesis 1928 printf("getblocks %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
genesis 1929 for (; pindex; pindex = pindex->pnext)
genesis 1930 {
genesis 1931 if (pindex->GetBlockHash() == hashStop)
genesis 1932 {
genesis 1933 printf(" getblocks stopping at %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes);
genesis 1934 break;
genesis 1935 }
genesis 1936 pfrom->PushInventory(CInv(MSG_BLOCK, pindex->GetBlockHash()));
genesis 1937 CBlock block;
genesis 1938 block.ReadFromDisk(pindex, true);
genesis 1939 nBytes += block.GetSerializeSize(SER_NETWORK);
genesis 1940 if (--nLimit <= 0 || nBytes >= SendBufferSize()/2)
genesis 1941 {
genesis 1942
genesis 1943
genesis 1944 printf(" getblocks stopping at limit %d %s (%u bytes)\n", pindex->nHeight, pindex->GetBlockHash().ToString().substr(0,20).c_str(), nBytes);
genesis 1945 pfrom->hashContinue = pindex->GetBlockHash();
genesis 1946 break;
genesis 1947 }
genesis 1948 }
genesis 1949 }
genesis 1950
genesis 1951
genesis 1952 else if (strCommand == "getheaders")
genesis 1953 {
genesis 1954 CBlockLocator locator;
genesis 1955 uint256 hashStop;
genesis 1956 vRecv >> locator >> hashStop;
genesis 1957
genesis 1958 CBlockIndex* pindex = NULL;
genesis 1959 if (locator.IsNull())
genesis 1960 {
genesis 1961
genesis 1962 map<uint256, CBlockIndex*>::iterator mi = mapBlockIndex.find(hashStop);
genesis 1963 if (mi == mapBlockIndex.end())
genesis 1964 return true;
genesis 1965 pindex = (*mi).second;
genesis 1966 }
genesis 1967 else
genesis 1968 {
genesis 1969
genesis 1970 pindex = locator.GetBlockIndex();
genesis 1971 if (pindex)
genesis 1972 pindex = pindex->pnext;
genesis 1973 }
genesis 1974
genesis 1975 vector<CBlock> vHeaders;
genesis 1976 int nLimit = 2000 + locator.GetDistanceBack();
genesis 1977 printf("getheaders %d to %s limit %d\n", (pindex ? pindex->nHeight : -1), hashStop.ToString().substr(0,20).c_str(), nLimit);
genesis 1978 for (; pindex; pindex = pindex->pnext)
genesis 1979 {
genesis 1980 vHeaders.push_back(pindex->GetBlockHeader());
genesis 1981 if (--nLimit <= 0 || pindex->GetBlockHash() == hashStop)
genesis 1982 break;
genesis 1983 }
genesis 1984 pfrom->PushMessage("headers", vHeaders);
genesis 1985 }
genesis 1986
genesis 1987
genesis 1988 else if (strCommand == "tx")
genesis 1989 {
genesis 1990 vector<uint256> vWorkQueue;
genesis 1991 CDataStream vMsg(vRecv);
genesis 1992 CTransaction tx;
genesis 1993 vRecv >> tx;
genesis 1994
genesis 1995 CInv inv(MSG_TX, tx.GetHash());
genesis 1996 pfrom->AddInventoryKnown(inv);
genesis 1997
genesis 1998 bool fMissingInputs = false;
genesis 1999 if (tx.AcceptToMemoryPool(true, &fMissingInputs))
genesis 2000 {
genesis 2001 SyncWithWallets(tx, NULL, true);
genesis 2002 RelayMessage(inv, vMsg);
genesis 2003 mapAlreadyAskedFor.erase(inv);
genesis 2004 vWorkQueue.push_back(inv.hash);
genesis 2005 }
genesis 2006 else if (fMissingInputs)
genesis 2007 {
asciilifeform_tx-... 2008 printf("REJECTED orphan tx %s\n", inv.hash.ToString().substr(0,10).c_str());
genesis 2009 }
genesis 2010 if (tx.nDoS) pfrom->Misbehaving(tx.nDoS);
genesis 2011 }
genesis 2012
genesis 2013
genesis 2014 else if (strCommand == "block")
genesis 2015 {
genesis 2016 CBlock block;
genesis 2017 vRecv >> block;
genesis 2018
genesis 2019 printf("received block %s\n", block.GetHash().ToString().substr(0,20).c_str());
genesis 2020
genesis 2021
genesis 2022 CInv inv(MSG_BLOCK, block.GetHash());
genesis 2023 pfrom->AddInventoryKnown(inv);
genesis 2024
genesis 2025 if (ProcessBlock(pfrom, &block))
genesis 2026 mapAlreadyAskedFor.erase(inv);
genesis 2027 if (block.nDoS) pfrom->Misbehaving(block.nDoS);
genesis 2028 }
genesis 2029
genesis 2030
genesis 2031 else if (strCommand == "getaddr")
genesis 2032 {
genesis 2033
genesis 2034 pfrom->vAddrToSend.clear();
genesis 2035 int64 nSince = GetAdjustedTime() - 3 * 60 * 60;
genesis 2036 CRITICAL_BLOCK(cs_mapAddresses)
genesis 2037 {
genesis 2038 unsigned int nCount = 0;
genesis 2039 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
genesis 2040 {
genesis 2041 const CAddress& addr = item.second;
genesis 2042 if (addr.nTime > nSince)
genesis 2043 nCount++;
genesis 2044 }
genesis 2045 BOOST_FOREACH(const PAIRTYPE(vector<unsigned char>, CAddress)& item, mapAddresses)
genesis 2046 {
genesis 2047 const CAddress& addr = item.second;
genesis 2048 if (addr.nTime > nSince && GetRand(nCount) < 2500)
genesis 2049 pfrom->PushAddress(addr);
genesis 2050 }
genesis 2051 }
genesis 2052 }
genesis 2053
genesis 2054
genesis 2055 else if (strCommand == "checkorder")
genesis 2056 {
genesis 2057 uint256 hashReply;
genesis 2058 vRecv >> hashReply;
genesis 2059
genesis 2060 if (!GetBoolArg("-allowreceivebyip"))
genesis 2061 {
genesis 2062 pfrom->PushMessage("reply", hashReply, (int)2, string(""));
genesis 2063 return true;
genesis 2064 }
genesis 2065
genesis 2066 CWalletTx order;
genesis 2067 vRecv >> order;
genesis 2068
genesis 2069
genesis 2070
genesis 2071
genesis 2072 if (!mapReuseKey.count(pfrom->addr.ip))
genesis 2073 pwalletMain->GetKeyFromPool(mapReuseKey[pfrom->addr.ip], true);
genesis 2074
genesis 2075
genesis 2076 CScript scriptPubKey;
genesis 2077 scriptPubKey << mapReuseKey[pfrom->addr.ip] << OP_CHECKSIG;
genesis 2078 pfrom->PushMessage("reply", hashReply, (int)0, scriptPubKey);
genesis 2079 }
genesis 2080
genesis 2081
genesis 2082 else if (strCommand == "reply")
genesis 2083 {
genesis 2084 uint256 hashReply;
genesis 2085 vRecv >> hashReply;
genesis 2086
genesis 2087 CRequestTracker tracker;
genesis 2088 CRITICAL_BLOCK(pfrom->cs_mapRequests)
genesis 2089 {
genesis 2090 map<uint256, CRequestTracker>::iterator mi = pfrom->mapRequests.find(hashReply);
genesis 2091 if (mi != pfrom->mapRequests.end())
genesis 2092 {
genesis 2093 tracker = (*mi).second;
genesis 2094 pfrom->mapRequests.erase(mi);
genesis 2095 }
genesis 2096 }
genesis 2097 if (!tracker.IsNull())
genesis 2098 tracker.fn(tracker.param1, vRecv);
genesis 2099 }
genesis 2100
genesis 2101
genesis 2102 else if (strCommand == "ping")
genesis 2103 {
genesis 2104 }
genesis 2105
genesis 2106
genesis 2107 else
genesis 2108 {
malleus_mikehearn... 2109
malleus_mikehearn... 2110 pfrom->Misbehaving(100);
malleus_mikehearn... 2111 return error("BANNED peer issuing heathen command.");
genesis 2112 }
genesis 2113
genesis 2114
genesis 2115
genesis 2116 if (pfrom->fNetworkNode)
genesis 2117 if (strCommand == "version" || strCommand == "addr" || strCommand == "inv" || strCommand == "getdata" || strCommand == "ping")
genesis 2118 AddressCurrentlyConnected(pfrom->addr);
genesis 2119
genesis 2120
genesis 2121 return true;
genesis 2122 }
genesis 2123
genesis 2124 bool ProcessMessages(CNode* pfrom)
genesis 2125 {
genesis 2126 CDataStream& vRecv = pfrom->vRecv;
genesis 2127 if (vRecv.empty())
genesis 2128 return true;
genesis 2129
genesis 2130
genesis 2131
genesis 2132
genesis 2133
genesis 2134
genesis 2135
genesis 2136
genesis 2137
genesis 2138
genesis 2139
genesis 2140
genesis 2141 loop
genesis 2142 {
genesis 2143
genesis 2144 CDataStream::iterator pstart = search(vRecv.begin(), vRecv.end(), BEGIN(pchMessageStart), END(pchMessageStart));
genesis 2145 int nHeaderSize = vRecv.GetSerializeSize(CMessageHeader());
genesis 2146 if (vRecv.end() - pstart < nHeaderSize)
genesis 2147 {
genesis 2148 if (vRecv.size() > nHeaderSize)
genesis 2149 {
genesis 2150 printf("\n\nPROCESSMESSAGE MESSAGESTART NOT FOUND\n\n");
genesis 2151 vRecv.erase(vRecv.begin(), vRecv.end() - nHeaderSize);
genesis 2152 }
genesis 2153 break;
genesis 2154 }
genesis 2155 if (pstart - vRecv.begin() > 0)
genesis 2156 printf("\n\nPROCESSMESSAGE SKIPPED %d BYTES\n\n", pstart - vRecv.begin());
genesis 2157 vRecv.erase(vRecv.begin(), pstart);
genesis 2158
genesis 2159
genesis 2160 vector<char> vHeaderSave(vRecv.begin(), vRecv.begin() + nHeaderSize);
genesis 2161 CMessageHeader hdr;
genesis 2162 vRecv >> hdr;
genesis 2163 if (!hdr.IsValid())
genesis 2164 {
genesis 2165 printf("\n\nPROCESSMESSAGE: ERRORS IN HEADER %s\n\n\n", hdr.GetCommand().c_str());
genesis 2166 continue;
genesis 2167 }
genesis 2168 string strCommand = hdr.GetCommand();
genesis 2169
genesis 2170
genesis 2171 unsigned int nMessageSize = hdr.nMessageSize;
genesis 2172 if (nMessageSize > MAX_SIZE)
genesis 2173 {
genesis 2174 printf("ProcessMessage(%s, %u bytes) : nMessageSize > MAX_SIZE\n", strCommand.c_str(), nMessageSize);
genesis 2175 continue;
genesis 2176 }
genesis 2177 if (nMessageSize > vRecv.size())
genesis 2178 {
genesis 2179
genesis 2180 vRecv.insert(vRecv.begin(), vHeaderSave.begin(), vHeaderSave.end());
genesis 2181 break;
genesis 2182 }
genesis 2183
genesis 2184
genesis 2185 if (vRecv.GetVersion() >= 209)
genesis 2186 {
genesis 2187 uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
genesis 2188 unsigned int nChecksum = 0;
genesis 2189 memcpy(&nChecksum, &hash, sizeof(nChecksum));
genesis 2190 if (nChecksum != hdr.nChecksum)
genesis 2191 {
genesis 2192 printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
genesis 2193 strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
genesis 2194 continue;
genesis 2195 }
genesis 2196 }
genesis 2197
genesis 2198
genesis 2199 CDataStream vMsg(vRecv.begin(), vRecv.begin() + nMessageSize, vRecv.nType, vRecv.nVersion);
genesis 2200 vRecv.ignore(nMessageSize);
genesis 2201
genesis 2202
genesis 2203 bool fRet = false;
genesis 2204 try
genesis 2205 {
genesis 2206 CRITICAL_BLOCK(cs_main)
genesis 2207 fRet = ProcessMessage(pfrom, strCommand, vMsg);
genesis 2208 if (fShutdown)
genesis 2209 return true;
genesis 2210 }
genesis 2211 catch (std::ios_base::failure& e)
genesis 2212 {
genesis 2213 if (strstr(e.what(), "end of data"))
genesis 2214 {
genesis 2215
genesis 2216 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 2217 }
genesis 2218 else if (strstr(e.what(), "size too large"))
genesis 2219 {
genesis 2220
genesis 2221 printf("ProcessMessage(%s, %u bytes) : Exception '%s' caught\n", strCommand.c_str(), nMessageSize, e.what());
genesis 2222 }
genesis 2223 else
genesis 2224 {
genesis 2225 PrintExceptionContinue(&e, "ProcessMessage()");
genesis 2226 }
genesis 2227 }
genesis 2228 catch (std::exception& e) {
genesis 2229 PrintExceptionContinue(&e, "ProcessMessage()");
genesis 2230 } catch (...) {
genesis 2231 PrintExceptionContinue(NULL, "ProcessMessage()");
genesis 2232 }
genesis 2233
genesis 2234 if (!fRet)
genesis 2235 printf("ProcessMessage(%s, %u bytes) FAILED\n", strCommand.c_str(), nMessageSize);
genesis 2236 }
genesis 2237
genesis 2238 vRecv.Compact();
genesis 2239 return true;
genesis 2240 }
genesis 2241
genesis 2242
genesis 2243 bool SendMessages(CNode* pto, bool fSendTrickle)
genesis 2244 {
genesis 2245 CRITICAL_BLOCK(cs_main)
genesis 2246 {
genesis 2247
genesis 2248 if (pto->nVersion == 0)
genesis 2249 return true;
genesis 2250
genesis 2251
genesis 2252 if (pto->nLastSend && GetTime() - pto->nLastSend > 30 * 60 && pto->vSend.empty())
genesis 2253 pto->PushMessage("ping");
genesis 2254
genesis 2255
genesis 2256 ResendWalletTransactions();
genesis 2257
genesis 2258
genesis 2259 static int64 nLastRebroadcast;
genesis 2260 if (GetTime() - nLastRebroadcast > 24 * 60 * 60)
genesis 2261 {
genesis 2262 nLastRebroadcast = GetTime();
genesis 2263 CRITICAL_BLOCK(cs_vNodes)
genesis 2264 {
genesis 2265 BOOST_FOREACH(CNode* pnode, vNodes)
genesis 2266 {
genesis 2267
genesis 2268 pnode->setAddrKnown.clear();
genesis 2269
genesis 2270
genesis 2271 if (addrLocalHost.IsRoutable() && !fUseProxy)
genesis 2272 {
genesis 2273 CAddress addr(addrLocalHost);
genesis 2274 addr.nTime = GetAdjustedTime();
genesis 2275 pnode->PushAddress(addr);
genesis 2276 }
genesis 2277 }
genesis 2278 }
genesis 2279 }
genesis 2280
genesis 2281
genesis 2282 static int64 nLastClear;
genesis 2283 if (nLastClear == 0)
genesis 2284 nLastClear = GetTime();
genesis 2285 if (GetTime() - nLastClear > 10 * 60 && vNodes.size() >= 3)
genesis 2286 {
genesis 2287 nLastClear = GetTime();
genesis 2288 CRITICAL_BLOCK(cs_mapAddresses)
genesis 2289 {
genesis 2290 CAddrDB addrdb;
genesis 2291 int64 nSince = GetAdjustedTime() - 14 * 24 * 60 * 60;
genesis 2292 for (map<vector<unsigned char>, CAddress>::iterator mi = mapAddresses.begin();
genesis 2293 mi != mapAddresses.end();)
genesis 2294 {
genesis 2295 const CAddress& addr = (*mi).second;
genesis 2296 if (addr.nTime < nSince)
genesis 2297 {
genesis 2298 if (mapAddresses.size() < 1000 || GetTime() > nLastClear + 20)
genesis 2299 break;
genesis 2300 addrdb.EraseAddress(addr);
genesis 2301 mapAddresses.erase(mi++);
genesis 2302 }
genesis 2303 else
genesis 2304 mi++;
genesis 2305 }
genesis 2306 }
genesis 2307 }
genesis 2308
genesis 2309
genesis 2310
genesis 2311
genesis 2312
genesis 2313 if (fSendTrickle)
genesis 2314 {
genesis 2315 vector<CAddress> vAddr;
genesis 2316 vAddr.reserve(pto->vAddrToSend.size());
genesis 2317 BOOST_FOREACH(const CAddress& addr, pto->vAddrToSend)
genesis 2318 {
genesis 2319
genesis 2320 if (pto->setAddrKnown.insert(addr).second)
genesis 2321 {
genesis 2322 vAddr.push_back(addr);
genesis 2323
genesis 2324 if (vAddr.size() >= 1000)
genesis 2325 {
genesis 2326 pto->PushMessage("addr", vAddr);
genesis 2327 vAddr.clear();
genesis 2328 }
genesis 2329 }
genesis 2330 }
genesis 2331 pto->vAddrToSend.clear();
genesis 2332 if (!vAddr.empty())
genesis 2333 pto->PushMessage("addr", vAddr);
genesis 2334 }
genesis 2335
genesis 2336
genesis 2337
genesis 2338
genesis 2339
genesis 2340 vector<CInv> vInv;
genesis 2341 vector<CInv> vInvWait;
genesis 2342 CRITICAL_BLOCK(pto->cs_inventory)
genesis 2343 {
genesis 2344 vInv.reserve(pto->vInventoryToSend.size());
genesis 2345 vInvWait.reserve(pto->vInventoryToSend.size());
genesis 2346 BOOST_FOREACH(const CInv& inv, pto->vInventoryToSend)
genesis 2347 {
genesis 2348 if (pto->setInventoryKnown.count(inv))
genesis 2349 continue;
genesis 2350
genesis 2351
genesis 2352 if (inv.type == MSG_TX && !fSendTrickle)
genesis 2353 {
genesis 2354
genesis 2355 static uint256 hashSalt;
genesis 2356 if (hashSalt == 0)
genesis 2357 RAND_bytes((unsigned char*)&hashSalt, sizeof(hashSalt));
genesis 2358 uint256 hashRand = inv.hash ^ hashSalt;
genesis 2359 hashRand = Hash(BEGIN(hashRand), END(hashRand));
genesis 2360 bool fTrickleWait = ((hashRand & 3) != 0);
genesis 2361
genesis 2362
genesis 2363 if (!fTrickleWait)
genesis 2364 {
genesis 2365 CWalletTx wtx;
genesis 2366 if (GetTransaction(inv.hash, wtx))
genesis 2367 if (wtx.fFromMe)
genesis 2368 fTrickleWait = true;
genesis 2369 }
genesis 2370
genesis 2371 if (fTrickleWait)
genesis 2372 {
genesis 2373 vInvWait.push_back(inv);
genesis 2374 continue;
genesis 2375 }
genesis 2376 }
genesis 2377
genesis 2378
genesis 2379 if (pto->setInventoryKnown.insert(inv).second)
genesis 2380 {
genesis 2381 vInv.push_back(inv);
genesis 2382 if (vInv.size() >= 1000)
genesis 2383 {
genesis 2384 pto->PushMessage("inv", vInv);
genesis 2385 vInv.clear();
genesis 2386 }
genesis 2387 }
genesis 2388 }
genesis 2389 pto->vInventoryToSend = vInvWait;
genesis 2390 }
genesis 2391 if (!vInv.empty())
genesis 2392 pto->PushMessage("inv", vInv);
genesis 2393
genesis 2394
genesis 2395
genesis 2396
genesis 2397
genesis 2398 vector<CInv> vGetData;
genesis 2399 int64 nNow = GetTime() * 1000000;
genesis 2400 CTxDB txdb("r");
genesis 2401 while (!pto->mapAskFor.empty() && (*pto->mapAskFor.begin()).first <= nNow)
genesis 2402 {
genesis 2403 const CInv& inv = (*pto->mapAskFor.begin()).second;
genesis 2404 if (!AlreadyHave(txdb, inv))
genesis 2405 {
genesis 2406 printf("sending getdata: %s\n", inv.ToString().c_str());
genesis 2407 vGetData.push_back(inv);
genesis 2408 if (vGetData.size() >= 1000)
genesis 2409 {
genesis 2410 pto->PushMessage("getdata", vGetData);
genesis 2411 vGetData.clear();
genesis 2412 }
genesis 2413 }
genesis 2414 mapAlreadyAskedFor[inv] = nNow;
genesis 2415 pto->mapAskFor.erase(pto->mapAskFor.begin());
genesis 2416 }
genesis 2417 if (!vGetData.empty())
genesis 2418 pto->PushMessage("getdata", vGetData);
genesis 2419
genesis 2420 }
genesis 2421 return true;
genesis 2422 }
genesis 2423
genesis 2424
genesis 2425
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 int static FormatHashBlocks(void* pbuffer, unsigned int len)
genesis 2443 {
genesis 2444 unsigned char* pdata = (unsigned char*)pbuffer;
genesis 2445 unsigned int blocks = 1 + ((len + 8) / 64);
genesis 2446 unsigned char* pend = pdata + 64 * blocks;
genesis 2447 memset(pdata + len, 0, 64 * blocks - len);
genesis 2448 pdata[len] = 0x80;
genesis 2449 unsigned int bits = len * 8;
genesis 2450 pend[-1] = (bits >> 0) & 0xff;
genesis 2451 pend[-2] = (bits >> 8) & 0xff;
genesis 2452 pend[-3] = (bits >> 16) & 0xff;
genesis 2453 pend[-4] = (bits >> 24) & 0xff;
genesis 2454 return blocks;
genesis 2455 }
genesis 2456
genesis 2457 static const unsigned int pSHA256InitState[8] =
genesis 2458 {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
genesis 2459
genesis 2460 void SHA256Transform(void* pstate, void* pinput, const void* pinit)
genesis 2461 {
genesis 2462 SHA256_CTX ctx;
genesis 2463 unsigned char data[64];
genesis 2464
genesis 2465 SHA256_Init(&ctx);
genesis 2466
genesis 2467 for (int i = 0; i < 16; i++)
genesis 2468 ((uint32_t*)data)[i] = ByteReverse(((uint32_t*)pinput)[i]);
genesis 2469
genesis 2470 for (int i = 0; i < 8; i++)
genesis 2471 ctx.h[i] = ((uint32_t*)pinit)[i];
genesis 2472
genesis 2473 SHA256_Update(&ctx, data, sizeof(data));
genesis 2474 for (int i = 0; i < 8; i++)
genesis 2475 ((uint32_t*)pstate)[i] = ctx.h[i];
genesis 2476 }
genesis 2477
genesis 2478
genesis 2479
genesis 2480
genesis 2481
genesis 2482
genesis 2483
genesis 2484
genesis 2485 unsigned int static ScanHash_CryptoPP(char* pmidstate, char* pdata, char* phash1, char* phash, unsigned int& nHashesDone)
genesis 2486 {
genesis 2487 unsigned int& nNonce = *(unsigned int*)(pdata + 12);
genesis 2488 for (;;)
genesis 2489 {
genesis 2490
genesis 2491
genesis 2492
genesis 2493 nNonce++;
genesis 2494 SHA256Transform(phash1, pdata, pmidstate);
genesis 2495 SHA256Transform(phash, phash1, pSHA256InitState);
genesis 2496
genesis 2497
genesis 2498
genesis 2499 if (((unsigned short*)phash)[14] == 0)
genesis 2500 return nNonce;
genesis 2501
genesis 2502
genesis 2503 if ((nNonce & 0xffff) == 0)
genesis 2504 {
genesis 2505 nHashesDone = 0xffff+1;
genesis 2506 return -1;
genesis 2507 }
genesis 2508 }
genesis 2509 }
genesis 2510
genesis 2511
genesis 2512 class COrphan
genesis 2513 {
genesis 2514 public:
genesis 2515 CTransaction* ptx;
genesis 2516 set<uint256> setDependsOn;
genesis 2517 double dPriority;
genesis 2518
genesis 2519 COrphan(CTransaction* ptxIn)
genesis 2520 {
genesis 2521 ptx = ptxIn;
genesis 2522 dPriority = 0;
genesis 2523 }
genesis 2524
genesis 2525 void print() const
genesis 2526 {
genesis 2527 printf("COrphan(hash=%s, dPriority=%.1f)\n", ptx->GetHash().ToString().substr(0,10).c_str(), dPriority);
genesis 2528 BOOST_FOREACH(uint256 hash, setDependsOn)
genesis 2529 printf(" setDependsOn %s\n", hash.ToString().substr(0,10).c_str());
genesis 2530 }
genesis 2531 };
genesis 2532
genesis 2533
genesis 2534 CBlock* CreateNewBlock(CReserveKey& reservekey)
genesis 2535 {
genesis 2536 CBlockIndex* pindexPrev = pindexBest;
genesis 2537
genesis 2538
genesis 2539 auto_ptr<CBlock> pblock(new CBlock());
genesis 2540 if (!pblock.get())
genesis 2541 return NULL;
genesis 2542
genesis 2543
genesis 2544 CTransaction txNew;
genesis 2545 txNew.vin.resize(1);
genesis 2546 txNew.vin[0].prevout.SetNull();
genesis 2547 txNew.vout.resize(1);
genesis 2548 txNew.vout[0].scriptPubKey << reservekey.GetReservedKey() << OP_CHECKSIG;
genesis 2549
genesis 2550
genesis 2551 pblock->vtx.push_back(txNew);
genesis 2552
genesis 2553
genesis 2554 int64 nFees = 0;
genesis 2555 CRITICAL_BLOCK(cs_main)
genesis 2556 CRITICAL_BLOCK(cs_mapTransactions)
genesis 2557 {
genesis 2558 CTxDB txdb("r");
genesis 2559
genesis 2560
genesis 2561 list<COrphan> vOrphan;
genesis 2562 map<uint256, vector<COrphan*> > mapDependers;
genesis 2563 multimap<double, CTransaction*> mapPriority;
genesis 2564 for (map<uint256, CTransaction>::iterator mi = mapTransactions.begin(); mi != mapTransactions.end(); ++mi)
genesis 2565 {
genesis 2566 CTransaction& tx = (*mi).second;
genesis 2567 if (tx.IsCoinBase() || !tx.IsFinal())
genesis 2568 continue;
genesis 2569
genesis 2570 COrphan* porphan = NULL;
genesis 2571 double dPriority = 0;
genesis 2572 BOOST_FOREACH(const CTxIn& txin, tx.vin)
genesis 2573 {
genesis 2574
genesis 2575 CTransaction txPrev;
genesis 2576 CTxIndex txindex;
genesis 2577 if (!txPrev.ReadFromDisk(txdb, txin.prevout, txindex))
genesis 2578 {
genesis 2579
genesis 2580 if (!porphan)
genesis 2581 {
genesis 2582
genesis 2583 vOrphan.push_back(COrphan(&tx));
genesis 2584 porphan = &vOrphan.back();
genesis 2585 }
genesis 2586 mapDependers[txin.prevout.hash].push_back(porphan);
genesis 2587 porphan->setDependsOn.insert(txin.prevout.hash);
genesis 2588 continue;
genesis 2589 }
genesis 2590 int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
genesis 2591
genesis 2592
genesis 2593 int nConf = txindex.GetDepthInMainChain();
genesis 2594
genesis 2595 dPriority += (double)nValueIn * nConf;
genesis 2596
genesis 2597 if (fDebug && GetBoolArg("-printpriority"))
genesis 2598 printf("priority nValueIn=%-12I64d nConf=%-5d dPriority=%-20.1f\n", nValueIn, nConf, dPriority);
genesis 2599 }
genesis 2600
genesis 2601
genesis 2602 dPriority /= ::GetSerializeSize(tx, SER_NETWORK);
genesis 2603
genesis 2604 if (porphan)
genesis 2605 porphan->dPriority = dPriority;
genesis 2606 else
genesis 2607 mapPriority.insert(make_pair(-dPriority, &(*mi).second));
genesis 2608
genesis 2609 if (fDebug && GetBoolArg("-printpriority"))
genesis 2610 {
genesis 2611 printf("priority %-20.1f %s\n%s", dPriority, tx.GetHash().ToString().substr(0,10).c_str(), tx.ToString().c_str());
genesis 2612 if (porphan)
genesis 2613 porphan->print();
genesis 2614 printf("\n");
genesis 2615 }
genesis 2616 }
genesis 2617
genesis 2618
genesis 2619 map<uint256, CTxIndex> mapTestPool;
genesis 2620 uint64 nBlockSize = 1000;
genesis 2621 int nBlockSigOps = 100;
genesis 2622 while (!mapPriority.empty())
genesis 2623 {
genesis 2624
genesis 2625 double dPriority = -(*mapPriority.begin()).first;
genesis 2626 CTransaction& tx = *(*mapPriority.begin()).second;
genesis 2627 mapPriority.erase(mapPriority.begin());
genesis 2628
genesis 2629
genesis 2630 unsigned int nTxSize = ::GetSerializeSize(tx, SER_NETWORK);
genesis 2631 if (nBlockSize + nTxSize >= MAX_BLOCK_SIZE_GEN)
genesis 2632 continue;
genesis 2633 int nTxSigOps = tx.GetSigOpCount();
genesis 2634 if (nBlockSigOps + nTxSigOps >= MAX_BLOCK_SIGOPS)
genesis 2635 continue;
genesis 2636
genesis 2637
genesis 2638 bool fAllowFree = (nBlockSize + nTxSize < 4000 || CTransaction::AllowFree(dPriority));
genesis 2639 int64 nMinFee = tx.GetMinFee(nBlockSize, fAllowFree);
genesis 2640
genesis 2641
genesis 2642
genesis 2643 map<uint256, CTxIndex> mapTestPoolTmp(mapTestPool);
genesis 2644 bool fInvalid;
genesis 2645 if (!tx.ConnectInputs(txdb, mapTestPoolTmp, CDiskTxPos(1,1,1), pindexPrev, nFees, false, true, nMinFee, fInvalid))
genesis 2646 continue;
genesis 2647 swap(mapTestPool, mapTestPoolTmp);
genesis 2648
genesis 2649
genesis 2650 pblock->vtx.push_back(tx);
genesis 2651 nBlockSize += nTxSize;
genesis 2652 nBlockSigOps += nTxSigOps;
genesis 2653
genesis 2654
genesis 2655 uint256 hash = tx.GetHash();
genesis 2656 if (mapDependers.count(hash))
genesis 2657 {
genesis 2658 BOOST_FOREACH(COrphan* porphan, mapDependers[hash])
genesis 2659 {
genesis 2660 if (!porphan->setDependsOn.empty())
genesis 2661 {
genesis 2662 porphan->setDependsOn.erase(hash);
genesis 2663 if (porphan->setDependsOn.empty())
genesis 2664 mapPriority.insert(make_pair(-porphan->dPriority, porphan->ptx));
genesis 2665 }
genesis 2666 }
genesis 2667 }
genesis 2668 }
genesis 2669 }
genesis 2670 pblock->vtx[0].vout[0].nValue = GetBlockValue(pindexPrev->nHeight+1, nFees);
genesis 2671
genesis 2672
genesis 2673 pblock->hashPrevBlock = pindexPrev->GetBlockHash();
genesis 2674 pblock->hashMerkleRoot = pblock->BuildMerkleTree();
genesis 2675 pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
genesis 2676 pblock->nBits = GetNextWorkRequired(pindexPrev, pblock.get());
genesis 2677 pblock->nNonce = 0;
genesis 2678
genesis 2679 return pblock.release();
genesis 2680 }
genesis 2681
genesis 2682
genesis 2683 void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce)
genesis 2684 {
genesis 2685
genesis 2686 static uint256 hashPrevBlock;
genesis 2687 if (hashPrevBlock != pblock->hashPrevBlock)
genesis 2688 {
genesis 2689 nExtraNonce = 0;
genesis 2690 hashPrevBlock = pblock->hashPrevBlock;
genesis 2691 }
genesis 2692 ++nExtraNonce;
genesis 2693 pblock->vtx[0].vin[0].scriptSig = CScript() << pblock->nTime << CBigNum(nExtraNonce);
genesis 2694 pblock->hashMerkleRoot = pblock->BuildMerkleTree();
genesis 2695 }
genesis 2696
genesis 2697
genesis 2698 void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1)
genesis 2699 {
genesis 2700
genesis 2701
genesis 2702
genesis 2703 struct
genesis 2704 {
genesis 2705 struct unnamed2
genesis 2706 {
genesis 2707 int nVersion;
genesis 2708 uint256 hashPrevBlock;
genesis 2709 uint256 hashMerkleRoot;
genesis 2710 unsigned int nTime;
genesis 2711 unsigned int nBits;
genesis 2712 unsigned int nNonce;
genesis 2713 }
genesis 2714 block;
genesis 2715 unsigned char pchPadding0[64];
genesis 2716 uint256 hash1;
genesis 2717 unsigned char pchPadding1[64];
genesis 2718 }
genesis 2719 tmp;
genesis 2720 memset(&tmp, 0, sizeof(tmp));
genesis 2721
genesis 2722 tmp.block.nVersion = pblock->nVersion;
genesis 2723 tmp.block.hashPrevBlock = pblock->hashPrevBlock;
genesis 2724 tmp.block.hashMerkleRoot = pblock->hashMerkleRoot;
genesis 2725 tmp.block.nTime = pblock->nTime;
genesis 2726 tmp.block.nBits = pblock->nBits;
genesis 2727 tmp.block.nNonce = pblock->nNonce;
genesis 2728
genesis 2729 FormatHashBlocks(&tmp.block, sizeof(tmp.block));
genesis 2730 FormatHashBlocks(&tmp.hash1, sizeof(tmp.hash1));
genesis 2731
genesis 2732
genesis 2733 for (int i = 0; i < sizeof(tmp)/4; i++)
genesis 2734 ((unsigned int*)&tmp)[i] = ByteReverse(((unsigned int*)&tmp)[i]);
genesis 2735
genesis 2736
genesis 2737 SHA256Transform(pmidstate, &tmp.block, pSHA256InitState);
genesis 2738
genesis 2739 memcpy(pdata, &tmp.block, 128);
genesis 2740 memcpy(phash1, &tmp.hash1, 64);
genesis 2741 }
genesis 2742
genesis 2743
genesis 2744 bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
genesis 2745 {
genesis 2746 uint256 hash = pblock->GetHash();
genesis 2747 uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
genesis 2748
genesis 2749 if (hash > hashTarget)
genesis 2750 return false;
genesis 2751
genesis 2752
genesis 2753 printf("BitcoinMiner:\n");
genesis 2754 printf("proof-of-work found \n hash: %s \ntarget: %s\n", hash.GetHex().c_str(), hashTarget.GetHex().c_str());
genesis 2755 pblock->print();
genesis 2756 printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
genesis 2757 printf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue).c_str());
genesis 2758
genesis 2759
genesis 2760 CRITICAL_BLOCK(cs_main)
genesis 2761 {
genesis 2762 if (pblock->hashPrevBlock != hashBestChain)
genesis 2763 return error("BitcoinMiner : generated block is stale");
genesis 2764
genesis 2765
genesis 2766 reservekey.KeepKey();
genesis 2767
genesis 2768
genesis 2769 CRITICAL_BLOCK(wallet.cs_wallet)
genesis 2770 wallet.mapRequestCount[pblock->GetHash()] = 0;
genesis 2771
genesis 2772
genesis 2773 if (!ProcessBlock(NULL, pblock))
genesis 2774 return error("BitcoinMiner : ProcessBlock, block not accepted");
genesis 2775 }
genesis 2776
genesis 2777 return true;
genesis 2778 }
genesis 2779
genesis 2780 void static ThreadBitcoinMiner(void* parg);
genesis 2781
genesis 2782 void static BitcoinMiner(CWallet *pwallet)
genesis 2783 {
genesis 2784 printf("BitcoinMiner started\n");
genesis 2785 SetThreadPriority(THREAD_PRIORITY_LOWEST);
genesis 2786
genesis 2787
genesis 2788 CReserveKey reservekey(pwallet);
genesis 2789 unsigned int nExtraNonce = 0;
genesis 2790
genesis 2791 while (fGenerateBitcoins)
genesis 2792 {
genesis 2793 if (AffinityBugWorkaround(ThreadBitcoinMiner))
genesis 2794 return;
genesis 2795 if (fShutdown)
genesis 2796 return;
genesis 2797 while (vNodes.empty() || IsInitialBlockDownload())
genesis 2798 {
genesis 2799 Sleep(1000);
genesis 2800 if (fShutdown)
genesis 2801 return;
genesis 2802 if (!fGenerateBitcoins)
genesis 2803 return;
genesis 2804 }
genesis 2805
genesis 2806
genesis 2807
genesis 2808
genesis 2809
genesis 2810 unsigned int nTransactionsUpdatedLast = nTransactionsUpdated;
genesis 2811 CBlockIndex* pindexPrev = pindexBest;
genesis 2812
genesis 2813 auto_ptr<CBlock> pblock(CreateNewBlock(reservekey));
genesis 2814 if (!pblock.get())
genesis 2815 return;
genesis 2816 IncrementExtraNonce(pblock.get(), pindexPrev, nExtraNonce);
genesis 2817
genesis 2818 printf("Running BitcoinMiner with %d transactions in block\n", pblock->vtx.size());
genesis 2819
genesis 2820
genesis 2821
genesis 2822
genesis 2823
genesis 2824 char pmidstatebuf[32+16]; char* pmidstate = alignup<16>(pmidstatebuf);
genesis 2825 char pdatabuf[128+16]; char* pdata = alignup<16>(pdatabuf);
genesis 2826 char phash1buf[64+16]; char* phash1 = alignup<16>(phash1buf);
genesis 2827
genesis 2828 FormatHashBuffers(pblock.get(), pmidstate, pdata, phash1);
genesis 2829
genesis 2830 unsigned int& nBlockTime = *(unsigned int*)(pdata + 64 + 4);
genesis 2831 unsigned int& nBlockNonce = *(unsigned int*)(pdata + 64 + 12);
genesis 2832
genesis 2833
genesis 2834
genesis 2835
genesis 2836
genesis 2837 int64 nStart = GetTime();
genesis 2838 uint256 hashTarget = CBigNum().SetCompact(pblock->nBits).getuint256();
genesis 2839 uint256 hashbuf[2];
genesis 2840 uint256& hash = *alignup<16>(hashbuf);
genesis 2841 loop
genesis 2842 {
genesis 2843 unsigned int nHashesDone = 0;
genesis 2844 unsigned int nNonceFound;
genesis 2845
genesis 2846
genesis 2847 nNonceFound = ScanHash_CryptoPP(pmidstate, pdata + 64, phash1,
genesis 2848 (char*)&hash, nHashesDone);
genesis 2849
genesis 2850
genesis 2851 if (nNonceFound != -1)
genesis 2852 {
genesis 2853 for (int i = 0; i < sizeof(hash)/4; i++)
genesis 2854 ((unsigned int*)&hash)[i] = ByteReverse(((unsigned int*)&hash)[i]);
genesis 2855
genesis 2856 if (hash <= hashTarget)
genesis 2857 {
genesis 2858
genesis 2859 pblock->nNonce = ByteReverse(nNonceFound);
genesis 2860 assert(hash == pblock->GetHash());
genesis 2861
genesis 2862 SetThreadPriority(THREAD_PRIORITY_NORMAL);
genesis 2863 CheckWork(pblock.get(), *pwalletMain, reservekey);
genesis 2864 SetThreadPriority(THREAD_PRIORITY_LOWEST);
genesis 2865 break;
genesis 2866 }
genesis 2867 }
genesis 2868
genesis 2869
genesis 2870 static int64 nHashCounter;
genesis 2871 if (nHPSTimerStart == 0)
genesis 2872 {
genesis 2873 nHPSTimerStart = GetTimeMillis();
genesis 2874 nHashCounter = 0;
genesis 2875 }
genesis 2876 else
genesis 2877 nHashCounter += nHashesDone;
genesis 2878 if (GetTimeMillis() - nHPSTimerStart > 4000)
genesis 2879 {
genesis 2880 static CCriticalSection cs;
genesis 2881 CRITICAL_BLOCK(cs)
genesis 2882 {
genesis 2883 if (GetTimeMillis() - nHPSTimerStart > 4000)
genesis 2884 {
genesis 2885 dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
genesis 2886 nHPSTimerStart = GetTimeMillis();
genesis 2887 nHashCounter = 0;
genesis 2888 string strStatus = strprintf(" %.0f khash/s", dHashesPerSec/1000.0);
genesis 2889 UIThreadCall(boost::bind(CalledSetStatusBar, strStatus, 0));
genesis 2890 static int64 nLogTime;
genesis 2891 if (GetTime() - nLogTime > 30 * 60)
genesis 2892 {
genesis 2893 nLogTime = GetTime();
genesis 2894 printf("%s ", DateTimeStrFormat("%x %H:%M", GetTime()).c_str());
genesis 2895 printf("hashmeter %3d CPUs %6.0f khash/s\n", vnThreadsRunning[3], dHashesPerSec/1000.0);
genesis 2896 }
genesis 2897 }
genesis 2898 }
genesis 2899 }
genesis 2900
genesis 2901
genesis 2902 if (fShutdown)
genesis 2903 return;
genesis 2904 if (!fGenerateBitcoins)
genesis 2905 return;
genesis 2906 if (fLimitProcessors && vnThreadsRunning[3] > nLimitProcessors)
genesis 2907 return;
genesis 2908 if (vNodes.empty())
genesis 2909 break;
genesis 2910 if (nBlockNonce >= 0xffff0000)
genesis 2911 break;
genesis 2912 if (nTransactionsUpdated != nTransactionsUpdatedLast && GetTime() - nStart > 60)
genesis 2913 break;
genesis 2914 if (pindexPrev != pindexBest)
genesis 2915 break;
genesis 2916
genesis 2917
genesis 2918 pblock->nTime = max(pindexPrev->GetMedianTimePast()+1, GetAdjustedTime());
genesis 2919 nBlockTime = ByteReverse(pblock->nTime);
genesis 2920 }
genesis 2921 }
genesis 2922 }
genesis 2923
genesis 2924 void static ThreadBitcoinMiner(void* parg)
genesis 2925 {
genesis 2926 CWallet* pwallet = (CWallet*)parg;
genesis 2927 try
genesis 2928 {
genesis 2929 vnThreadsRunning[3]++;
genesis 2930 BitcoinMiner(pwallet);
genesis 2931 vnThreadsRunning[3]--;
genesis 2932 }
genesis 2933 catch (std::exception& e) {
genesis 2934 vnThreadsRunning[3]--;
genesis 2935 PrintException(&e, "ThreadBitcoinMiner()");
genesis 2936 } catch (...) {
genesis 2937 vnThreadsRunning[3]--;
genesis 2938 PrintException(NULL, "ThreadBitcoinMiner()");
genesis 2939 }
genesis 2940 UIThreadCall(boost::bind(CalledSetStatusBar, "", 0));
genesis 2941 nHPSTimerStart = 0;
genesis 2942 if (vnThreadsRunning[3] == 0)
genesis 2943 dHashesPerSec = 0;
genesis 2944 printf("ThreadBitcoinMiner exiting, %d threads remaining\n", vnThreadsRunning[3]);
genesis 2945 }
genesis 2946
genesis 2947
genesis 2948 void GenerateBitcoins(bool fGenerate, CWallet* pwallet)
genesis 2949 {
genesis 2950 if (fGenerateBitcoins != fGenerate)
genesis 2951 {
genesis 2952 fGenerateBitcoins = fGenerate;
genesis 2953 WriteSetting("fGenerateBitcoins", fGenerateBitcoins);
genesis 2954 MainFrameRepaint();
genesis 2955 }
genesis 2956 if (fGenerateBitcoins)
genesis 2957 {
genesis 2958 int nProcessors = boost::thread::hardware_concurrency();
genesis 2959 printf("%d processors\n", nProcessors);
genesis 2960 if (nProcessors < 1)
genesis 2961 nProcessors = 1;
genesis 2962 if (fLimitProcessors && nProcessors > nLimitProcessors)
genesis 2963 nProcessors = nLimitProcessors;
genesis 2964 int nAddThreads = nProcessors - vnThreadsRunning[3];
genesis 2965 printf("Starting %d BitcoinMiner threads\n", nAddThreads);
genesis 2966 for (int i = 0; i < nAddThreads; i++)
genesis 2967 {
genesis 2968 if (!CreateThread(ThreadBitcoinMiner, pwallet))
genesis 2969 printf("Error: CreateThread(ThreadBitcoinMiner) failed\n");
genesis 2970 Sleep(10);
genesis 2971 }
genesis 2972 }
genesis 2973 }