// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2014 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
# include "miner.h"
# ifdef ENABLE_MINING
# include "pow/tromp/equi_miner.h"
# endif
# include "amount.h"
# include "base58.h"
# include "chainparams.h"
# include "consensus/consensus.h"
# include "consensus/upgrades.h"
# include "consensus/validation.h"
# ifdef ENABLE_MINING
# include "crypto/equihash.h"
# endif
# include "hash.h"
# include "main.h"
# include "metrics.h"
# include "net.h"
# include "pow.h"
# include "primitives/transaction.h"
# include "random.h"
# include "timedata.h"
# include "ui_interface.h"
Split up util.cpp/h
Split up util.cpp/h into:
- string utilities (hex, base32, base64): no internal dependencies, no dependency on boost (apart from foreach)
- money utilities (parsesmoney, formatmoney)
- time utilities (gettime*, sleep, format date):
- and the rest (logging, argument parsing, config file parsing)
The latter is basically the environment and OS handling,
and is stripped of all utility functions, so we may want to
rename it to something else than util.cpp/h for clarity (Matt suggested
osinterface).
Breaks dependency of sha256.cpp on all the things pulled in by util.
10 years ago
# include "util.h"
# include "utilmoneystr.h"
# ifdef ENABLE_WALLET
# include "wallet/wallet.h"
# endif
# include "sodium.h"
Split up util.cpp/h
Split up util.cpp/h into:
- string utilities (hex, base32, base64): no internal dependencies, no dependency on boost (apart from foreach)
- money utilities (parsesmoney, formatmoney)
- time utilities (gettime*, sleep, format date):
- and the rest (logging, argument parsing, config file parsing)
The latter is basically the environment and OS handling,
and is stripped of all utility functions, so we may want to
rename it to something else than util.cpp/h for clarity (Matt suggested
osinterface).
Breaks dependency of sha256.cpp on all the things pulled in by util.
10 years ago
# include <boost/thread.hpp>
# include <boost/tuple/tuple.hpp>
# ifdef ENABLE_MINING
# include <functional>
# endif
# include <mutex>
Split up util.cpp/h
Split up util.cpp/h into:
- string utilities (hex, base32, base64): no internal dependencies, no dependency on boost (apart from foreach)
- money utilities (parsesmoney, formatmoney)
- time utilities (gettime*, sleep, format date):
- and the rest (logging, argument parsing, config file parsing)
The latter is basically the environment and OS handling,
and is stripped of all utility functions, so we may want to
rename it to something else than util.cpp/h for clarity (Matt suggested
osinterface).
Breaks dependency of sha256.cpp on all the things pulled in by util.
10 years ago
using namespace std ;
//////////////////////////////////////////////////////////////////////////////
//
// BitcoinMiner
//
//
// Unconfirmed transactions in the memory pool often depend on other
// transactions in the memory pool. When we select transactions from the
// pool, we select by highest priority or fee rate, so we might consider
// transactions that depend on transactions that aren't yet in the block.
// The COrphan class keeps track of these 'temporary orphans' while
// CreateBlock is figuring out which transactions to include.
//
class COrphan
{
public :
const CTransaction * ptx ;
set < uint256 > setDependsOn ;
CFeeRate feeRate ;
double dPriority ;
COrphan ( const CTransaction * ptxIn ) : ptx ( ptxIn ) , feeRate ( 0 ) , dPriority ( 0 )
{
}
} ;
uint64_t nLastBlockTx = 0 ;
uint64_t nLastBlockSize = 0 ;
// We want to sort transactions by priority and fee rate, so:
typedef boost : : tuple < double , CFeeRate , const CTransaction * > TxPriority ;
class TxPriorityCompare
{
bool byFee ;
public :
TxPriorityCompare ( bool _byFee ) : byFee ( _byFee ) { }
bool operator ( ) ( const TxPriority & a , const TxPriority & b )
{
if ( byFee )
{
if ( a . get < 1 > ( ) = = b . get < 1 > ( ) )
return a . get < 0 > ( ) < b . get < 0 > ( ) ;
return a . get < 1 > ( ) < b . get < 1 > ( ) ;
}
else
{
if ( a . get < 0 > ( ) = = b . get < 0 > ( ) )
return a . get < 1 > ( ) < b . get < 1 > ( ) ;
return a . get < 0 > ( ) < b . get < 0 > ( ) ;
}
}
} ;
void UpdateTime ( CBlockHeader * pblock , const Consensus : : Params & consensusParams , const CBlockIndex * pindexPrev )
{
pblock - > nTime = std : : max ( pindexPrev - > GetMedianTimePast ( ) + 1 , GetAdjustedTime ( ) ) ;
}
# include "komodo_defs.h"
extern int32_t ASSETCHAINS_SEED , IS_KOMODO_NOTARY , USE_EXTERNAL_PUBKEY , KOMODO_CHOSEN_ONE , ASSETCHAIN_INIT , KOMODO_INITDONE , KOMODO_ON_DEMAND , KOMODO_INITDONE , KOMODO_PASSPORT_INITDONE ;
extern uint32_t ASSETCHAINS_REWARD , ASSETCHAINS_COMMISSION ;
extern char ASSETCHAINS_SYMBOL [ KOMODO_ASSETCHAIN_MAXLEN ] ;
extern std : : string NOTARY_PUBKEY ;
extern uint8_t NOTARY_PUBKEY33 [ 33 ] , ASSETCHAINS_OVERRIDE_PUBKEY33 [ 33 ] ;
uint32_t Mining_start , Mining_height ;
int32_t komodo_chosennotary ( int32_t * notaryidp , int32_t height , uint8_t * pubkey33 , uint32_t timestamp ) ;
int32_t komodo_pax_opreturn ( int32_t height , uint8_t * opret , int32_t maxsize ) ;
uint64_t komodo_paxtotal ( ) ;
int32_t komodo_baseid ( char * origbase ) ;
int32_t komodo_is_issuer ( ) ;
int32_t komodo_gateway_deposits ( CMutableTransaction * txNew , char * symbol , int32_t tokomodo ) ;
int32_t komodo_isrealtime ( int32_t * kmdheightp ) ;
int32_t komodo_validate_interest ( const CTransaction & tx , int32_t txheight , uint32_t nTime , int32_t dispflag ) ;
uint64_t komodo_commission ( const CBlock & block ) ;
CBlockTemplate * CreateNewBlock ( const CScript & scriptPubKeyIn )
{
uint64_t deposits ; int32_t isrealtime , kmdheight ; const CChainParams & chainparams = Params ( ) ;
// Create new block
std : : unique_ptr < CBlockTemplate > pblocktemplate ( new CBlockTemplate ( ) ) ;
if ( ! pblocktemplate . get ( ) )
{
fprintf ( stderr , " pblocktemplate.get() failure \n " ) ;
return NULL ;
}
CBlock * pblock = & pblocktemplate - > block ; // pointer for convenience
if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 & & komodo_baseid ( ASSETCHAINS_SYMBOL ) > = 0 & & chainActive . Tip ( ) - > nHeight > = ASSETCHAINS_MINHEIGHT )
{
isrealtime = komodo_isrealtime ( & kmdheight ) ;
deposits = komodo_paxtotal ( ) ;
while ( KOMODO_ON_DEMAND = = 0 & & deposits = = 0 & & ( int32_t ) mempool . GetTotalTxSize ( ) = = 0 )
{
deposits = komodo_paxtotal ( ) ;
if ( KOMODO_PASSPORT_INITDONE = = 0 | | KOMODO_INITDONE = = 0 | | ( komodo_baseid ( ASSETCHAINS_SYMBOL ) > = 0 & & ( isrealtime = komodo_isrealtime ( & kmdheight ) ) = = 0 ) )
{
//fprintf(stderr,"INITDONE.%d RT.%d deposits %.8f ht.%d\n",KOMODO_INITDONE,isrealtime,(double)deposits/COIN,kmdheight);
}
else if ( komodo_isrealtime ( & kmdheight ) ! = 0 & & ( deposits ! = 0 | | ( int32_t ) mempool . GetTotalTxSize ( ) > 0 ) )
{
fprintf ( stderr , " start CreateNewBlock %s initdone.%d deposit %.8f mempool.%d RT.%u KOMODO_ON_DEMAND.%d \n " , ASSETCHAINS_SYMBOL , KOMODO_INITDONE , ( double ) komodo_paxtotal ( ) / COIN , ( int32_t ) mempool . GetTotalTxSize ( ) , isrealtime , KOMODO_ON_DEMAND ) ;
break ;
}
sleep ( 10 ) ;
}
KOMODO_ON_DEMAND = 0 ;
if ( 0 & & deposits ! = 0 )
printf ( " miner KOMODO_DEPOSIT %llu pblock->nHeight %d mempool.GetTotalTxSize(%d) \n " , ( long long ) komodo_paxtotal ( ) , ( int32_t ) chainActive . Tip ( ) - > nHeight , ( int32_t ) mempool . GetTotalTxSize ( ) ) ;
}
// -regtest only: allow overriding block.nVersion with
// -blockversion=N to test forking scenarios
if ( Params ( ) . MineBlocksOnDemand ( ) )
pblock - > nVersion = GetArg ( " -blockversion " , pblock - > nVersion ) ;
// Add dummy coinbase tx as first transaction
pblock - > vtx . push_back ( CTransaction ( ) ) ;
pblocktemplate - > vTxFees . push_back ( - 1 ) ; // updated at end
pblocktemplate - > vTxSigOps . push_back ( - 1 ) ; // updated at end
// Largest block you're willing to create:
unsigned int nBlockMaxSize = GetArg ( " -blockmaxsize " , DEFAULT_BLOCK_MAX_SIZE ) ;
// Limit to betweeen 1K and MAX_BLOCK_SIZE-1K for sanity:
nBlockMaxSize = std : : max ( ( unsigned int ) 1000 , std : : min ( ( unsigned int ) ( MAX_BLOCK_SIZE - 1000 ) , nBlockMaxSize ) ) ;
// How much of the block should be dedicated to high-priority transactions,
// included regardless of the fees they pay
unsigned int nBlockPrioritySize = GetArg ( " -blockprioritysize " , DEFAULT_BLOCK_PRIORITY_SIZE ) ;
nBlockPrioritySize = std : : min ( nBlockMaxSize , nBlockPrioritySize ) ;
// Minimum block size you want to create; block will be filled with free transactions
// until there are no more or the block reaches this size:
unsigned int nBlockMinSize = GetArg ( " -blockminsize " , DEFAULT_BLOCK_MIN_SIZE ) ;
nBlockMinSize = std : : min ( nBlockMaxSize , nBlockMinSize ) ;
// Collect memory pool transactions into the block
CAmount nFees = 0 ;
{
LOCK2 ( cs_main , mempool . cs ) ;
CBlockIndex * pindexPrev = chainActive . Tip ( ) ;
const int nHeight = pindexPrev - > nHeight + 1 ;
uint32_t consensusBranchId = CurrentEpochBranchId ( nHeight , chainparams . GetConsensus ( ) ) ;
pblock - > nTime = GetAdjustedTime ( ) ;
const int64_t nMedianTimePast = pindexPrev - > GetMedianTimePast ( ) ;
CCoinsViewCache view ( pcoinsTip ) ;
uint32_t expired ; uint64_t commission ;
// Priority order to process transactions
list < COrphan > vOrphan ; // list memory doesn't move
map < uint256 , vector < COrphan * > > mapDependers ;
bool fPrintPriority = GetBoolArg ( " -printpriority " , false ) ;
// This vector will be sorted into a priority queue:
vector < TxPriority > vecPriority ;
vecPriority . reserve ( mempool . mapTx . size ( ) ) ;
for ( CTxMemPool : : indexed_transaction_set : : iterator mi = mempool . mapTx . begin ( ) ;
mi ! = mempool . mapTx . end ( ) ; + + mi )
{
const CTransaction & tx = mi - > GetTx ( ) ;
int64_t nLockTimeCutoff = ( STANDARD_LOCKTIME_VERIFY_FLAGS & LOCKTIME_MEDIAN_TIME_PAST )
? nMedianTimePast
: pblock - > GetBlockTime ( ) ;
if ( tx . IsCoinBase ( ) | | ! IsFinalTx ( tx , nHeight , nLockTimeCutoff ) | | IsExpiredTx ( tx , nHeight ) )
continue ;
if ( komodo_validate_interest ( tx , nHeight , ( uint32_t ) pblock - > nTime , 2 ) < 0 )
{
fprintf ( stderr , " CreateNewBlock: komodo_validate_interest failure \n " ) ;
continue ;
}
COrphan * porphan = NULL ;
double dPriority = 0 ;
CAmount nTotalIn = 0 ;
bool fMissingInputs = false ;
BOOST_FOREACH ( const CTxIn & txin , tx . vin )
{
// Read prev transaction
if ( ! view . HaveCoins ( txin . prevout . hash ) )
{
// This should never happen; all transactions in the memory
// pool should connect to either transactions in the chain
// or other transactions in the memory pool.
if ( ! mempool . mapTx . count ( txin . prevout . hash ) )
{
LogPrintf ( " ERROR: mempool transaction missing input \n " ) ;
if ( fDebug ) assert ( " mempool transaction missing input " = = 0 ) ;
fMissingInputs = true ;
if ( porphan )
vOrphan . pop_back ( ) ;
break ;
}
// Has to wait for dependencies
if ( ! porphan )
{
// Use list for automatic deletion
vOrphan . push_back ( COrphan ( & tx ) ) ;
porphan = & vOrphan . back ( ) ;
}
mapDependers [ txin . prevout . hash ] . push_back ( porphan ) ;
porphan - > setDependsOn . insert ( txin . prevout . hash ) ;
nTotalIn + = mempool . mapTx . find ( txin . prevout . hash ) - > GetTx ( ) . vout [ txin . prevout . n ] . nValue ;
continue ;
}
const CCoins * coins = view . AccessCoins ( txin . prevout . hash ) ;
assert ( coins ) ;
CAmount nValueIn = coins - > vout [ txin . prevout . n ] . nValue ;
nTotalIn + = nValueIn ;
int nConf = nHeight - coins - > nHeight ;
dPriority + = ( double ) nValueIn * nConf ;
}
nTotalIn + = tx . GetJoinSplitValueIn ( ) ;
if ( fMissingInputs ) continue ;
// Priority is sum(valuein * age) / modified_txsize
unsigned int nTxSize = : : GetSerializeSize ( tx , SER_NETWORK , PROTOCOL_VERSION ) ;
dPriority = tx . ComputePriority ( dPriority , nTxSize ) ;
uint256 hash = tx . GetHash ( ) ;
mempool . ApplyDeltas ( hash , dPriority , nTotalIn ) ;
CFeeRate feeRate ( nTotalIn - tx . GetValueOut ( ) , nTxSize ) ;
if ( porphan )
{
porphan - > dPriority = dPriority ;
porphan - > feeRate = feeRate ;
}
else
vecPriority . push_back ( TxPriority ( dPriority , feeRate , & ( mi - > GetTx ( ) ) ) ) ;
}
// Collect transactions into block
uint64_t nBlockSize = 1000 ;
uint64_t nBlockTx = 0 ;
int64_t interest ;
int nBlockSigOps = 100 ;
bool fSortedByFee = ( nBlockPrioritySize < = 0 ) ;
TxPriorityCompare comparer ( fSortedByFee ) ;
std : : make_heap ( vecPriority . begin ( ) , vecPriority . end ( ) , comparer ) ;
while ( ! vecPriority . empty ( ) )
{
// Take highest priority transaction off the priority queue:
double dPriority = vecPriority . front ( ) . get < 0 > ( ) ;
CFeeRate feeRate = vecPriority . front ( ) . get < 1 > ( ) ;
const CTransaction & tx = * ( vecPriority . front ( ) . get < 2 > ( ) ) ;
std : : pop_heap ( vecPriority . begin ( ) , vecPriority . end ( ) , comparer ) ;
vecPriority . pop_back ( ) ;
// Size limits
unsigned int nTxSize = : : GetSerializeSize ( tx , SER_NETWORK , PROTOCOL_VERSION ) ;
if ( nBlockSize + nTxSize > = nBlockMaxSize )
continue ;
// Legacy limits on sigOps:
unsigned int nTxSigOps = GetLegacySigOpCount ( tx ) ;
if ( nBlockSigOps + nTxSigOps > = MAX_BLOCK_SIGOPS )
continue ;
// Skip free transactions if we're past the minimum block size:
const uint256 & hash = tx . GetHash ( ) ;
double dPriorityDelta = 0 ;
CAmount nFeeDelta = 0 ;
mempool . ApplyDeltas ( hash , dPriorityDelta , nFeeDelta ) ;
if ( fSortedByFee & & ( dPriorityDelta < = 0 ) & & ( nFeeDelta < = 0 ) & & ( feeRate < : : minRelayTxFee ) & & ( nBlockSize + nTxSize > = nBlockMinSize ) )
continue ;
// Prioritise by fee once past the priority size or we run out of high-priority
// transactions:
if ( ! fSortedByFee & &
( ( nBlockSize + nTxSize > = nBlockPrioritySize ) | | ! AllowFree ( dPriority ) ) )
{
fSortedByFee = true ;
comparer = TxPriorityCompare ( fSortedByFee ) ;
std : : make_heap ( vecPriority . begin ( ) , vecPriority . end ( ) , comparer ) ;
}
if ( ! view . HaveInputs ( tx ) )
continue ;
CAmount nTxFees = view . GetValueIn ( chainActive . Tip ( ) - > nHeight , & interest , tx , chainActive . Tip ( ) - > nTime ) - tx . GetValueOut ( ) ;
nTxSigOps + = GetP2SHSigOpCount ( tx , view ) ;
if ( nBlockSigOps + nTxSigOps > = MAX_BLOCK_SIGOPS )
continue ;
// Note that flags: we don't want to set mempool/IsStandard()
// policy here, but we still have to ensure that the block we
// create only contains transactions that are valid in new blocks.
CValidationState state ;
PrecomputedTransactionData txdata ( tx ) ;
if ( ! ContextualCheckInputs ( tx , state , view , true , MANDATORY_SCRIPT_VERIFY_FLAGS , true , txdata , Params ( ) . GetConsensus ( ) , consensusBranchId ) )
continue ;
UpdateCoins ( tx , view , nHeight ) ;
// Added
pblock - > vtx . push_back ( tx ) ;
pblocktemplate - > vTxFees . push_back ( nTxFees ) ;
pblocktemplate - > vTxSigOps . push_back ( nTxSigOps ) ;
nBlockSize + = nTxSize ;
+ + nBlockTx ;
nBlockSigOps + = nTxSigOps ;
nFees + = nTxFees ;
if ( fPrintPriority )
{
LogPrintf ( " priority %.1f fee %s txid %s \n " , dPriority , feeRate . ToString ( ) , tx . GetHash ( ) . ToString ( ) ) ;
}
// Add transactions that depend on this one to the priority queue
if ( mapDependers . count ( hash ) )
{
BOOST_FOREACH ( COrphan * porphan , mapDependers [ hash ] )
{
if ( ! porphan - > setDependsOn . empty ( ) )
{
porphan - > setDependsOn . erase ( hash ) ;
if ( porphan - > setDependsOn . empty ( ) )
{
vecPriority . push_back ( TxPriority ( porphan - > dPriority , porphan - > feeRate , porphan - > ptx ) ) ;
std : : push_heap ( vecPriority . begin ( ) , vecPriority . end ( ) , comparer ) ;
}
}
}
}
}
nLastBlockTx = nBlockTx ;
nLastBlockSize = nBlockSize ;
LogPrintf ( " CreateNewBlock(): total size %u \n " , nBlockSize ) ;
// Create coinbase tx
CMutableTransaction txNew = CreateNewContextualCMutableTransaction ( chainparams . GetConsensus ( ) , nHeight ) ;
txNew . vin . resize ( 1 ) ;
txNew . vin [ 0 ] . prevout . SetNull ( ) ;
txNew . vout . resize ( 1 ) ;
txNew . vout [ 0 ] . scriptPubKey = scriptPubKeyIn ;
txNew . vout [ 0 ] . nValue = GetBlockSubsidy ( nHeight , chainparams . GetConsensus ( ) ) ;
txNew . nExpiryHeight = 0 ;
// Add fees
txNew . vout [ 0 ] . nValue + = nFees ;
txNew . vin [ 0 ] . scriptSig = CScript ( ) < < nHeight < < OP_0 ;
/*if ( ASSETCHAINS_SYMBOL[0] == 0 )
{
int32_t i , opretlen ; uint8_t opret [ 256 ] , * ptr ;
if ( ( nHeight % 60 ) = = 0 | | komodo_gateway_deposits ( & txNew , ( char * ) " KMD " , 1 ) = = 0 )
{
if ( ( opretlen = komodo_pax_opreturn ( ( int32_t ) nHeight , opret , sizeof ( opret ) ) ) > 0 ) // have pricefeed
{
txNew . vout . resize ( 2 ) ;
txNew . vout [ 1 ] . scriptPubKey . resize ( opretlen ) ;
ptr = ( uint8_t * ) txNew . vout [ 1 ] . scriptPubKey . data ( ) ;
for ( i = 0 ; i < opretlen ; i + + )
ptr [ i ] = opret [ i ] ;
txNew . vout [ 1 ] . nValue = 0 ;
//fprintf(stderr,"opretlen.%d\n",opretlen);
} //else printf("null opretlen for prices\n");
}
}
else if ( komodo_is_issuer ( ) ! = 0 )
{
komodo_gateway_deposits ( & txNew , ASSETCHAINS_SYMBOL , 0 ) ;
if ( txNew . vout . size ( ) > 1 )
fprintf ( stderr , " %s txNew numvouts.%d \n " , ASSETCHAINS_SYMBOL , ( int32_t ) txNew . vout . size ( ) ) ;
} */
pblock - > vtx [ 0 ] = txNew ;
if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 & & ASSETCHAINS_OVERRIDE_PUBKEY33 [ 0 ] ! = 0 & & ASSETCHAINS_COMMISSION ! = 0 & & ( commission = komodo_commission ( pblocktemplate - > block ) ) ! = 0 )
{
int32_t i ; uint8_t * ptr ;
txNew . vout . resize ( 2 ) ;
txNew . vout [ 1 ] . nValue = commission ;
txNew . vout [ 1 ] . scriptPubKey . resize ( 35 ) ;
ptr = ( uint8_t * ) txNew . vout [ 1 ] . scriptPubKey . data ( ) ;
ptr [ 0 ] = 33 ;
for ( i = 0 ; i < 33 ; i + + )
ptr [ i + 1 ] = ASSETCHAINS_OVERRIDE_PUBKEY33 [ i ] ;
ptr [ 34 ] = OP_CHECKSIG ;
//printf("autocreate commision vout\n");
pblock - > vtx [ 0 ] = txNew ;
}
pblocktemplate - > vTxFees [ 0 ] = - nFees ;
// Randomise nonce
arith_uint256 nonce = UintToArith256 ( GetRandHash ( ) ) ;
// Clear the top and bottom 16 bits (for local use as thread flags and counters)
nonce < < = 32 ;
nonce > > = 16 ;
pblock - > nNonce = ArithToUint256 ( nonce ) ;
// Fill in header
pblock - > hashPrevBlock = pindexPrev - > GetBlockHash ( ) ;
pblock - > hashReserved = uint256 ( ) ;
//UpdateTime(pblock, Params().GetConsensus(), pindexPrev);
pblock - > nBits = GetNextWorkRequired ( pindexPrev , pblock , Params ( ) . GetConsensus ( ) ) ;
pblock - > nSolution . clear ( ) ;
pblocktemplate - > vTxSigOps [ 0 ] = GetLegacySigOpCount ( pblock - > vtx [ 0 ] ) ;
CValidationState state ;
if ( ! TestBlockValidity ( state , * pblock , pindexPrev , false , false ) )
{
static uint32_t counter ;
if ( counter + + < 100 )
fprintf ( stderr , " warning: testblockvalidity failed \n " ) ;
return ( 0 ) ;
}
}
return pblocktemplate . release ( ) ;
}
/*
# ifdef ENABLE_WALLET
boost : : optional < CScript > GetMinerScriptPubKey ( CReserveKey & reservekey )
# else
boost : : optional < CScript > GetMinerScriptPubKey ( )
# endif
{
CKeyID keyID ;
CBitcoinAddress addr ;
if ( addr . SetString ( GetArg ( " -mineraddress " , " " ) ) ) {
addr . GetKeyID ( keyID ) ;
} else {
# ifdef ENABLE_WALLET
CPubKey pubkey ;
if ( ! reservekey . GetReservedKey ( pubkey ) ) {
return boost : : optional < CScript > ( ) ;
}
keyID = pubkey . GetID ( ) ;
# else
return boost : : optional < CScript > ( ) ;
# endif
}
CScript scriptPubKey = CScript ( ) < < OP_DUP < < OP_HASH160 < < ToByteVector ( keyID ) < < OP_EQUALVERIFY < < OP_CHECKSIG ;
return scriptPubKey ;
}
# ifdef ENABLE_WALLET
CBlockTemplate * CreateNewBlockWithKey ( CReserveKey & reservekey )
{
boost : : optional < CScript > scriptPubKey = GetMinerScriptPubKey ( reservekey ) ;
# else
CBlockTemplate * CreateNewBlockWithKey ( )
{
boost : : optional < CScript > scriptPubKey = GetMinerScriptPubKey ( ) ;
# endif
if ( ! scriptPubKey ) {
return NULL ;
}
return CreateNewBlock ( * scriptPubKey ) ;
} */
//////////////////////////////////////////////////////////////////////////////
//
// Internal miner
//
# ifdef ENABLE_MINING
void IncrementExtraNonce ( CBlock * pblock , CBlockIndex * pindexPrev , unsigned int & nExtraNonce )
{
// Update nExtraNonce
static uint256 hashPrevBlock ;
if ( hashPrevBlock ! = pblock - > hashPrevBlock )
{
nExtraNonce = 0 ;
hashPrevBlock = pblock - > hashPrevBlock ;
}
+ + nExtraNonce ;
unsigned int nHeight = pindexPrev - > nHeight + 1 ; // Height first in coinbase required for block.version=2
CMutableTransaction txCoinbase ( pblock - > vtx [ 0 ] ) ;
txCoinbase . vin [ 0 ] . scriptSig = ( CScript ( ) < < nHeight < < CScriptNum ( nExtraNonce ) ) + COINBASE_FLAGS ;
assert ( txCoinbase . vin [ 0 ] . scriptSig . size ( ) < = 100 ) ;
pblock - > vtx [ 0 ] = txCoinbase ;
pblock - > hashMerkleRoot = pblock - > BuildMerkleTree ( ) ;
}
# ifdef ENABLE_WALLET
//////////////////////////////////////////////////////////////////////////////
//
// Internal miner
//
CBlockTemplate * CreateNewBlockWithKey ( CReserveKey & reservekey )
{
CPubKey pubkey ; CScript scriptPubKey ; uint8_t * script , * ptr ; int32_t i ;
if ( USE_EXTERNAL_PUBKEY ! = 0 )
{
//fprintf(stderr,"use notary pubkey\n");
scriptPubKey = CScript ( ) < < ParseHex ( NOTARY_PUBKEY ) < < OP_CHECKSIG ;
}
else
{
if ( ! reservekey . GetReservedKey ( pubkey ) )
{
return NULL ;
}
scriptPubKey . resize ( 35 ) ;
ptr = ( uint8_t * ) pubkey . begin ( ) ;
script = ( uint8_t * ) scriptPubKey . data ( ) ;
script [ 0 ] = 33 ;
for ( i = 0 ; i < 33 ; i + + )
script [ i + 1 ] = ptr [ i ] ;
script [ 34 ] = OP_CHECKSIG ;
//scriptPubKey = CScript() << ToByteVector(pubkey) << OP_CHECKSIG;
}
return CreateNewBlock ( scriptPubKey ) ;
}
static bool ProcessBlockFound ( CBlock * pblock , CWallet & wallet , CReserveKey & reservekey )
# else
static bool ProcessBlockFound ( CBlock * pblock )
# endif // ENABLE_WALLET
{
LogPrintf ( " %s \n " , pblock - > ToString ( ) ) ;
LogPrintf ( " generated %s height.%d \n " , FormatMoney ( pblock - > vtx [ 0 ] . vout [ 0 ] . nValue ) , chainActive . Tip ( ) - > nHeight + 1 ) ;
// Found a solution
{
LOCK ( cs_main ) ;
if ( pblock - > hashPrevBlock ! = chainActive . Tip ( ) - > GetBlockHash ( ) )
{
uint256 hash ; int32_t i ;
hash = pblock - > hashPrevBlock ;
for ( i = 31 ; i > = 0 ; i - - )
fprintf ( stderr , " %02x " , ( ( uint8_t * ) & hash ) [ i ] ) ;
fprintf ( stderr , " <- prev (stale) \n " ) ;
hash = chainActive . Tip ( ) - > GetBlockHash ( ) ;
for ( i = 31 ; i > = 0 ; i - - )
fprintf ( stderr , " %02x " , ( ( uint8_t * ) & hash ) [ i ] ) ;
fprintf ( stderr , " <- chainTip (stale) \n " ) ;
return error ( " KomodoMiner: generated block is stale " ) ;
}
}
# ifdef ENABLE_WALLET
// Remove key from key pool
if ( IS_KOMODO_NOTARY = = 0 )
{
if ( GetArg ( " -mineraddress " , " " ) . empty ( ) ) {
// Remove key from key pool
reservekey . KeepKey ( ) ;
}
}
// Track how many getdata requests this block gets
//if ( 0 )
{
LOCK ( wallet . cs_wallet ) ;
wallet . mapRequestCount [ pblock - > GetHash ( ) ] = 0 ;
}
# endif
// Process this block the same as if we had received it from another node
CValidationState state ;
if ( ! ProcessNewBlock ( chainActive . Tip ( ) - > nHeight + 1 , state , NULL , pblock , true , NULL ) )
return error ( " KomodoMiner: ProcessNewBlock, block not accepted " ) ;
TrackMinedBlock ( pblock - > GetHash ( ) ) ;
return true ;
}
int32_t komodo_baseid ( char * origbase ) ;
int32_t komodo_eligiblenotary ( uint8_t pubkeys [ 66 ] [ 33 ] , int32_t * mids , int32_t * nonzpkeysp , int32_t height ) ;
int32_t FOUND_BLOCK , KOMODO_MAYBEMINED ;
extern int32_t KOMODO_LASTMINED ;
int32_t roundrobin_delay ;
# ifdef ENABLE_WALLET
void static BitcoinMiner ( CWallet * pwallet )
# else
void static BitcoinMiner ( )
# endif
{
LogPrintf ( " KomodoMiner started \n " ) ;
SetThreadPriority ( THREAD_PRIORITY_LOWEST ) ;
RenameThread ( " komodo-miner " ) ;
const CChainParams & chainparams = Params ( ) ;
# ifdef ENABLE_WALLET
// Each thread has its own key
CReserveKey reservekey ( pwallet ) ;
# endif
// Each thread has its own counter
unsigned int nExtraNonce = 0 ;
unsigned int n = chainparams . EquihashN ( ) ;
unsigned int k = chainparams . EquihashK ( ) ;
uint8_t * script ; uint64_t total , checktoshis ; int32_t i , j , notaryid = - 1 ;
while ( ( ASSETCHAIN_INIT = = 0 | | KOMODO_INITDONE = = 0 ) ) //chainActive.Tip()->nHeight != 235300 &&
{
sleep ( 1 ) ;
if ( komodo_baseid ( ASSETCHAINS_SYMBOL ) < 0 )
break ;
}
//sleep(60);
komodo_chosennotary ( & notaryid , chainActive . Tip ( ) - > nHeight , NOTARY_PUBKEY33 , ( uint32_t ) chainActive . Tip ( ) - > GetBlockTime ( ) ) ;
std : : string solver ;
//if ( notaryid >= 0 || ASSETCHAINS_SYMBOL[0] != 0 )
solver = " tromp " ;
//else solver = "default";
assert ( solver = = " tromp " | | solver = = " default " ) ;
LogPrint ( " pow " , " Using Equihash solver \" %s \" with n = %u, k = %u \n " , solver , n , k ) ;
if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
fprintf ( stderr , " notaryid.%d Mining.%s with %s \n " , notaryid , ASSETCHAINS_SYMBOL , solver . c_str ( ) ) ;
std : : mutex m_cs ;
bool cancelSolver = false ;
boost : : signals2 : : connection c = uiInterface . NotifyBlockTip . connect (
[ & m_cs , & cancelSolver ] ( const uint256 & hashNewTip ) mutable {
std : : lock_guard < std : : mutex > lock { m_cs } ;
cancelSolver = true ;
}
) ;
miningTimer . start ( ) ;
try {
if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
fprintf ( stderr , " try %s Mining with %s \n " , ASSETCHAINS_SYMBOL , solver . c_str ( ) ) ;
while ( true )
{
if ( chainparams . MiningRequiresPeers ( ) ) //chainActive.Tip()->nHeight != 235300 &&
{
//if ( ASSETCHAINS_SEED != 0 && chainActive.Tip()->nHeight < 100 )
// break;
// Busy-wait for the network to come online so we don't waste time mining
// on an obsolete chain. In regtest mode we expect to fly solo.
miningTimer . stop ( ) ;
do {
bool fvNodesEmpty ;
{
LOCK ( cs_vNodes ) ;
fvNodesEmpty = vNodes . empty ( ) ;
}
if ( ! fvNodesEmpty ) //&& !IsInitialBlockDownload())
break ;
MilliSleep ( 5000 ) ;
//fprintf(stderr,"fvNodesEmpty %d IsInitialBlockDownload(%s) %d\n",(int32_t)fvNodesEmpty,ASSETCHAINS_SYMBOL,(int32_t)IsInitialBlockDownload());
} while ( true ) ;
//fprintf(stderr,"%s Found peers\n",ASSETCHAINS_SYMBOL);
miningTimer . start ( ) ;
}
/*while ( ASSETCHAINS_SYMBOL[0] != 0 && chainActive.Tip()->nHeight < ASSETCHAINS_MINHEIGHT )
{
fprintf ( stderr , " %s waiting for block 100, ht.%d \n " , ASSETCHAINS_SYMBOL , chainActive . Tip ( ) - > nHeight ) ;
sleep ( 3 ) ;
} */
//
// Create new block
//
unsigned int nTransactionsUpdatedLast = mempool . GetTransactionsUpdated ( ) ;
CBlockIndex * pindexPrev = chainActive . Tip ( ) ;
if ( Mining_height ! = pindexPrev - > nHeight + 1 )
{
Mining_height = pindexPrev - > nHeight + 1 ;
Mining_start = ( uint32_t ) time ( NULL ) ;
}
if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
{
//fprintf(stderr,"%s create new block ht.%d\n",ASSETCHAINS_SYMBOL,Mining_height);
sleep ( 3 ) ;
}
# ifdef ENABLE_WALLET
CBlockTemplate * ptr = CreateNewBlockWithKey ( reservekey ) ;
# else
CBlockTemplate * ptr = CreateNewBlockWithKey ( ) ;
# endif
if ( ptr = = 0 )
{
static uint32_t counter ;
if ( counter + + < 100 )
fprintf ( stderr , " created illegal block, retry \n " ) ;
continue ;
}
unique_ptr < CBlockTemplate > pblocktemplate ( ptr ) ;
if ( ! pblocktemplate . get ( ) )
{
if ( GetArg ( " -mineraddress " , " " ) . empty ( ) ) {
LogPrintf ( " Error in KomodoMiner: Keypool ran out, please call keypoolrefill before restarting the mining thread \n " ) ;
} else {
// Should never reach here, because -mineraddress validity is checked in init.cpp
LogPrintf ( " Error in KomodoMiner: Invalid -mineraddress \n " ) ;
}
return ;
}
CBlock * pblock = & pblocktemplate - > block ;
if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
{
if ( ASSETCHAINS_REWARD = = 0 )
{
if ( pblock - > vtx . size ( ) = = 1 & & pblock - > vtx [ 0 ] . vout . size ( ) = = 1 & & Mining_height > ASSETCHAINS_MINHEIGHT )
{
static uint32_t counter ;
if ( counter + + < 10 )
fprintf ( stderr , " skip generating %s on-demand block, no tx avail \n " , ASSETCHAINS_SYMBOL ) ;
sleep ( 10 ) ;
continue ;
} else fprintf ( stderr , " %s vouts.%d mining.%d vs %d \n " , ASSETCHAINS_SYMBOL , ( int32_t ) pblock - > vtx [ 0 ] . vout . size ( ) , Mining_height , ASSETCHAINS_MINHEIGHT ) ;
}
}
IncrementExtraNonce ( pblock , pindexPrev , nExtraNonce ) ;
LogPrintf ( " Running KomodoMiner.%s with %u transactions in block (%u bytes) \n " , solver . c_str ( ) , pblock - > vtx . size ( ) , : : GetSerializeSize ( * pblock , SER_NETWORK , PROTOCOL_VERSION ) ) ;
//
// Search
//
uint8_t pubkeys [ 66 ] [ 33 ] ; int mids [ 256 ] , gpucount , nonzpkeys , i , j , externalflag ; uint32_t savebits ; int64_t nStart = GetTime ( ) ;
savebits = pblock - > nBits ;
arith_uint256 hashTarget = arith_uint256 ( ) . SetCompact ( pblock - > nBits ) ;
roundrobin_delay = ROUNDROBIN_DELAY ;
if ( ASSETCHAINS_SYMBOL [ 0 ] = = 0 & & notaryid > = 0 )
{
j = 65 ;
if ( ( Mining_height > = 235300 & & Mining_height < 236000 ) | | ( Mining_height % KOMODO_ELECTION_GAP ) > 64 | | ( Mining_height % KOMODO_ELECTION_GAP ) = = 0 )
{
komodo_eligiblenotary ( pubkeys , mids , & nonzpkeys , pindexPrev - > nHeight ) ;
if ( nonzpkeys > 0 )
{
for ( i = 0 ; i < 33 ; i + + )
if ( pubkeys [ 0 ] [ i ] ! = 0 )
break ;
if ( i = = 33 )
externalflag = 1 ;
else externalflag = 0 ;
if ( NOTARY_PUBKEY33 [ 0 ] ! = 0 & & ( notaryid < 3 | | notaryid = = 34 | | notaryid = = 51 | | notaryid = = 52 ) )
{
for ( i = 1 ; i < 66 ; i + + )
if ( memcmp ( pubkeys [ i ] , pubkeys [ 0 ] , 33 ) = = 0 )
break ;
if ( externalflag = = 0 & & i ! = 66 )
printf ( " VIOLATION at %d \n " , i ) ;
for ( j = gpucount = 0 ; j < 65 ; j + + )
{
if ( mids [ j ] > = 0 | | notaryid = = 34 )
fprintf ( stderr , " %d " , mids [ j ] ) ;
else fprintf ( stderr , " GPU " ) ;
if ( mids [ j ] = = - 1 )
gpucount + + ;
}
if ( gpucount > j / 2 )
{
double delta ;
if ( notaryid < 0 )
i = ( rand ( ) % 64 ) ;
else i = ( ( Mining_height + notaryid ) % 64 ) ;
delta = sqrt ( ( double ) gpucount - j / 2 ) / 2. ;
roundrobin_delay + = ( ( delta * i ) / 64 ) - delta ;
//fprintf(stderr,"delta.%f %f %f\n",delta,(double)(gpucount - j/3) / 2,(delta * i) / 64);
}
fprintf ( stderr , " <- prev minerids from ht.%d notary.%d gpucount.%d %.2f%% t.%u %d \n " , pindexPrev - > nHeight , notaryid , gpucount , 100. * ( double ) gpucount / j , ( uint32_t ) time ( NULL ) , roundrobin_delay ) ;
}
for ( j = 0 ; j < 65 ; j + + )
if ( mids [ j ] = = notaryid )
break ;
if ( j = = 65 )
KOMODO_LASTMINED = 0 ;
} else fprintf ( stderr , " no nonz pubkeys \n " ) ;
if ( ( Mining_height > = 235300 & & Mining_height < 236000 ) | | ( j = = 65 & & Mining_height > KOMODO_MAYBEMINED + 1 & & Mining_height > KOMODO_LASTMINED + 64 ) )
{
hashTarget = arith_uint256 ( ) . SetCompact ( KOMODO_MINDIFF_NBITS ) ;
fprintf ( stderr , " I am the chosen one for %s ht.%d \n " , ASSETCHAINS_SYMBOL , pindexPrev - > nHeight + 1 ) ;
} //else fprintf(stderr,"duplicate at j.%d\n",j);
} else Mining_start = 0 ;
} else Mining_start = 0 ;
while ( true )
{
/*if ( 0 && ASSETCHAINS_SYMBOL[0] != 0 && pblock->vtx[0].vout.size() == 1 && Mining_height > ASSETCHAINS_MINHEIGHT ) // skips when it shouldnt
{
fprintf ( stderr , " skip generating %s on-demand block, no tx avail \n " , ASSETCHAINS_SYMBOL ) ;
sleep ( 10 ) ;
break ;
} */
// Hash state
KOMODO_CHOSEN_ONE = 0 ;
crypto_generichash_blake2b_state state ;
EhInitialiseState ( n , k , state ) ;
// I = the block header minus nonce and solution.
CEquihashInput I { * pblock } ;
CDataStream ss ( SER_NETWORK , PROTOCOL_VERSION ) ;
ss < < I ;
// H(I||...
crypto_generichash_blake2b_update ( & state , ( unsigned char * ) & ss [ 0 ] , ss . size ( ) ) ;
// H(I||V||...
crypto_generichash_blake2b_state curr_state ;
curr_state = state ;
crypto_generichash_blake2b_update ( & curr_state , pblock - > nNonce . begin ( ) , pblock - > nNonce . size ( ) ) ;
// (x_1, x_2, ...) = A(I, V, n, k)
LogPrint ( " pow " , " Running Equihash solver \" %s \" with nNonce = %s \n " , solver , pblock - > nNonce . ToString ( ) ) ;
//fprintf(stderr,"running solver\n");
std : : function < bool ( std : : vector < unsigned char > ) > validBlock =
# ifdef ENABLE_WALLET
[ & pblock , & hashTarget , & pwallet , & reservekey , & m_cs , & cancelSolver , & chainparams ]
# else
[ & pblock , & hashTarget , & m_cs , & cancelSolver , & chainparams ]
# endif
( std : : vector < unsigned char > soln ) {
// Write the solution to the hash and compute the result.
LogPrint ( " pow " , " - Checking solution against target \n " ) ;
pblock - > nSolution = soln ;
solutionTargetChecks . increment ( ) ;
if ( UintToArith256 ( pblock - > GetHash ( ) ) > hashTarget )
{
//if ( 0 && ASSETCHAINS_SYMBOL[0] != 0 )
// fprintf(stderr," missed target\n");
return false ;
}
if ( /*ASSETCHAINS_SYMBOL[0] == 0 &&*/ Mining_start ! = 0 & & time ( NULL ) < Mining_start + roundrobin_delay )
{
//printf("Round robin diff sleep %d\n",(int32_t)(Mining_start+roundrobin_delay-time(NULL)));
int32_t nseconds = Mining_start + roundrobin_delay - time ( NULL ) ;
if ( nseconds > 0 )
sleep ( nseconds ) ;
MilliSleep ( ( rand ( ) % 1700 ) + 1 ) ;
}
else if ( ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
{
sleep ( rand ( ) % 30 ) ;
}
KOMODO_CHOSEN_ONE = 1 ;
// Found a solution
SetThreadPriority ( THREAD_PRIORITY_NORMAL ) ;
LogPrintf ( " KomodoMiner: \n " ) ;
LogPrintf ( " proof-of-work found \n hash: %s \n target: %s \n " , pblock - > GetHash ( ) . GetHex ( ) , hashTarget . GetHex ( ) ) ;
# ifdef ENABLE_WALLET
if ( ProcessBlockFound ( pblock , * pwallet , reservekey ) ) {
# else
if ( ProcessBlockFound ( pblock ) ) {
# endif
// Ignore chain updates caused by us
std : : lock_guard < std : : mutex > lock { m_cs } ;
cancelSolver = false ;
}
KOMODO_CHOSEN_ONE = 0 ;
SetThreadPriority ( THREAD_PRIORITY_LOWEST ) ;
// In regression test mode, stop mining after a block is found.
if ( chainparams . MineBlocksOnDemand ( ) ) {
// Increment here because throwing skips the call below
ehSolverRuns . increment ( ) ;
throw boost : : thread_interrupted ( ) ;
}
//if ( ASSETCHAINS_SYMBOL[0] == 0 && NOTARY_PUBKEY33[0] != 0 )
// sleep(1800);
return true ;
} ;
std : : function < bool ( EhSolverCancelCheck ) > cancelled = [ & m_cs , & cancelSolver ] ( EhSolverCancelCheck pos ) {
std : : lock_guard < std : : mutex > lock { m_cs } ;
return cancelSolver ;
} ;
// TODO: factor this out into a function with the same API for each solver.
if ( solver = = " tromp " ) { //&& notaryid >= 0 ) {
// Create solver and initialize it.
equi eq ( 1 ) ;
eq . setstate ( & curr_state ) ;
// Initialization done, start algo driver.
eq . digit0 ( 0 ) ;
eq . xfull = eq . bfull = eq . hfull = 0 ;
eq . showbsizes ( 0 ) ;
for ( u32 r = 1 ; r < WK ; r + + ) {
( r & 1 ) ? eq . digitodd ( r , 0 ) : eq . digiteven ( r , 0 ) ;
eq . xfull = eq . bfull = eq . hfull = 0 ;
eq . showbsizes ( r ) ;
}
eq . digitK ( 0 ) ;
ehSolverRuns . increment ( ) ;
// Convert solution indices to byte array (decompress) and pass it to validBlock method.
for ( size_t s = 0 ; s < eq . nsols ; s + + ) {
LogPrint ( " pow " , " Checking solution %d \n " , s + 1 ) ;
std : : vector < eh_index > index_vector ( PROOFSIZE ) ;
for ( size_t i = 0 ; i < PROOFSIZE ; i + + ) {
index_vector [ i ] = eq . sols [ s ] [ i ] ;
}
std : : vector < unsigned char > sol_char = GetMinimalFromIndices ( index_vector , DIGITBITS ) ;
if ( validBlock ( sol_char ) ) {
// If we find a POW solution, do not try other solutions
// because they become invalid as we created a new block in blockchain.
break ;
}
}
} else {
try {
// If we find a valid block, we rebuild
bool found = EhOptimisedSolve ( n , k , curr_state , validBlock , cancelled ) ;
ehSolverRuns . increment ( ) ;
if ( found ) {
int32_t i ; uint256 hash = pblock - > GetHash ( ) ;
for ( i = 0 ; i < 32 ; i + + )
fprintf ( stderr , " %02x " , ( ( uint8_t * ) & hash ) [ i ] ) ;
fprintf ( stderr , " <- %s Block found %d \n " , ASSETCHAINS_SYMBOL , Mining_height ) ;
FOUND_BLOCK = 1 ;
KOMODO_MAYBEMINED = Mining_height ;
break ;
}
} catch ( EhSolverCancelledException & ) {
LogPrint ( " pow " , " Equihash solver cancelled \n " ) ;
std : : lock_guard < std : : mutex > lock { m_cs } ;
cancelSolver = false ;
}
}
// Check for stop or if block needs to be rebuilt
boost : : this_thread : : interruption_point ( ) ;
// Regtest mode doesn't require peers
if ( FOUND_BLOCK ! = 0 )
{
FOUND_BLOCK = 0 ;
fprintf ( stderr , " FOUND_BLOCK! \n " ) ;
//sleep(2000);
}
if ( vNodes . empty ( ) & & chainparams . MiningRequiresPeers ( ) )
{
if ( ASSETCHAINS_SYMBOL [ 0 ] = = 0 | | Mining_height > ASSETCHAINS_MINHEIGHT )
{
fprintf ( stderr , " no nodes, break \n " ) ;
break ;
}
}
if ( ( UintToArith256 ( pblock - > nNonce ) & 0xffff ) = = 0xffff )
{
//if ( 0 && ASSETCHAINS_SYMBOL[0] != 0 )
fprintf ( stderr , " 0xffff, break \n " ) ;
break ;
}
if ( mempool . GetTransactionsUpdated ( ) ! = nTransactionsUpdatedLast & & GetTime ( ) - nStart > 60 )
{
if ( 0 & & ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
fprintf ( stderr , " timeout, break \n " ) ;
break ;
}
if ( pindexPrev ! = chainActive . Tip ( ) )
{
if ( 0 & & ASSETCHAINS_SYMBOL [ 0 ] ! = 0 )
fprintf ( stderr , " Tip advanced, break \n " ) ;
break ;
}
// Update nNonce and nTime
pblock - > nNonce = ArithToUint256 ( UintToArith256 ( pblock - > nNonce ) + 1 ) ;
pblock - > nBits = savebits ;
UpdateTime ( pblock , chainparams . GetConsensus ( ) , pindexPrev ) ;
if ( chainparams . GetConsensus ( ) . fPowAllowMinDifficultyBlocks )
{
// Changing pblock->nTime can change work required on testnet:
hashTarget . SetCompact ( pblock - > nBits ) ;
}
}
}
}
catch ( const boost : : thread_interrupted & )
{
miningTimer . stop ( ) ;
c . disconnect ( ) ;
LogPrintf ( " KomodoMiner terminated \n " ) ;
throw ;
}
catch ( const std : : runtime_error & e )
{
miningTimer . stop ( ) ;
c . disconnect ( ) ;
LogPrintf ( " KomodoMiner runtime error: %s \n " , e . what ( ) ) ;
return ;
}
miningTimer . stop ( ) ;
c . disconnect ( ) ;
}
# ifdef ENABLE_WALLET
void GenerateBitcoins ( bool fGenerate , CWallet * pwallet , int nThreads )
# else
void GenerateBitcoins ( bool fGenerate , int nThreads )
# endif
{
static boost : : thread_group * minerThreads = NULL ;
if ( nThreads < 0 )
nThreads = GetNumCores ( ) ;
if ( minerThreads ! = NULL )
{
minerThreads - > interrupt_all ( ) ;
delete minerThreads ;
minerThreads = NULL ;
}
if ( nThreads = = 0 | | ! fGenerate )
return ;
minerThreads = new boost : : thread_group ( ) ;
for ( int i = 0 ; i < nThreads ; i + + ) {
# ifdef ENABLE_WALLET
minerThreads - > create_thread ( boost : : bind ( & BitcoinMiner , pwallet ) ) ;
# else
minerThreads - > create_thread ( & BitcoinMiner ) ;
# endif
}
}
# endif // ENABLE_MINING