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Zawys new algo 

1) FTL 4 seconds
2) MTP from 11 -> 1
3) must calc MAX(diff[I]) for past 11 blocks
4) bnTarget *= mult*mult
5) bnTarget.nBits -> onchain
warmup
jl777 5 years ago
parent
b6507d34de
commit
23ca86df3a
5 changed files with 51 additions and 24 deletions
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  1. 8
      src/komodo_bitcoind.h
  2. 12
      src/main.cpp
  3. 19
      src/miner.cpp
  4. 31
      src/pow.cpp
  5. 5
      src/rpc/mining.cpp

8
src/komodo_bitcoind.h
View File

@ -1419,13 +1419,13 @@ uint32_t komodo_stakehash(uint256 *hashp,char *address,uint8_t *hashbuf,uint256
arith_uint256 komodo_adaptivepow_target(int32_t height,arith_uint256 bnTarget,uint32_t nTime)
{
arith_uint256 origtarget,easy; int32_t diff,tipdiff; int64_t mult; bool fNegative,fOverflow; CBlockIndex *tipindex;
if ( height > 10 && (tipindex= komodo_chainactive(height - 1)) != 0 )
if ( height > 10 && (tipindex= komodo_chainactive(height - 1)) != 0 ) // disable offchain diffchange
{
diff = (nTime - tipindex->GetMedianTimePast());
tipdiff = (nTime - tipindex->nTime);
if ( tipdiff > 13*ASSETCHAINS_BLOCKTIME )
diff = tipdiff;
if ( diff >= 13 * ASSETCHAINS_BLOCKTIME && (height < 3000 || tipdiff > 2*ASSETCHAINS_BLOCKTIME) )
if ( diff >= 13 * ASSETCHAINS_BLOCKTIME && (height < 30 || tipdiff > 2*ASSETCHAINS_BLOCKTIME) )
{
mult = diff - 12 * ASSETCHAINS_BLOCKTIME;
mult = (mult / ASSETCHAINS_BLOCKTIME) * ASSETCHAINS_BLOCKTIME + ASSETCHAINS_BLOCKTIME / 2;
@ -2286,8 +2286,8 @@ int32_t komodo_checkPOW(int32_t slowflag,CBlock *pblock,int32_t height)
if ( height == 0 )
return(0);
}
if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
bnTarget = komodo_adaptivepow_target(height,bnTarget,pblock->nTime);
//if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
// bnTarget = komodo_adaptivepow_target(height,bnTarget,pblock->nTime);
if ( ASSETCHAINS_LWMAPOS != 0 && bhash > bnTarget )
{
// if proof of stake is active, check if this is a valid PoS block before we fail

12
src/main.cpp
View File

@ -5043,7 +5043,15 @@ bool CheckBlockHeader(int32_t *futureblockp,int32_t height,CBlockIndex *pindex,
}
}
*futureblockp = 0;
if (blockhdr.GetBlockTime() > GetAdjustedTime() + 60)
if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
{
if (blockhdr.GetBlockTime() > GetAdjustedTime() + 4)
{
//LogPrintf("CheckBlockHeader block from future %d error",blockhdr.GetBlockTime() - GetAdjustedTime());
return false;
}
}
else if (blockhdr.GetBlockTime() > GetAdjustedTime() + 60)
{
/*CBlockIndex *tipindex;
//fprintf(stderr,"ht.%d future block %u vs time.%u + 60\n",height,(uint32_t)blockhdr.GetBlockTime(),(uint32_t)GetAdjustedTime());
@ -5288,7 +5296,7 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
}
// Check timestamp against prev
if ( ASSETCHAINS_ADAPTIVEPOW == 0 || nHeight < 3000 )
if ( ASSETCHAINS_ADAPTIVEPOW == 0 || nHeight < 30 )
{
if (block.GetBlockTime() <= pindexPrev->GetMedianTimePast() )
{

19
src/miner.cpp
View File

@ -1452,8 +1452,8 @@ void static BitcoinMiner_noeq()
HASHTarget.SetCompact(KOMODO_MINDIFF_NBITS,&fNegative,&fOverflow);
LogPrintf("Block %d : PoS %d%% vs target %d%%\n", Mining_height, percPoS, (int32_t)ASSETCHAINS_STAKED);
}
else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
HASHTarget_POW = komodo_adaptivepow_target(Mining_height,HASHTarget,pblock->nTime);
//else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
// HASHTarget_POW = komodo_adaptivepow_target(Mining_height,HASHTarget,pblock->nTime);
while (true)
{
@ -1487,8 +1487,8 @@ void static BitcoinMiner_noeq()
}
else if ( ASSETCHAINS_STAKED == 100 && Mining_height > 100 )
hashTarget = HASHTarget;
else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
hashTarget = HASHTarget_POW;
//else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
// hashTarget = HASHTarget_POW;
// for speed check NONCEMASK at a time
for (i = 0; i < count; i++)
@ -1825,8 +1825,8 @@ void static BitcoinMiner()
if ( ASSETCHAINS_STAKED < 100 )
LogPrintf("Block %d : PoS %d%% vs target %d%% \n",Mining_height,percPoS,(int32_t)ASSETCHAINS_STAKED);
}
else if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
HASHTarget_POW = komodo_adaptivepow_target(Mining_height,HASHTarget,pblock->nTime);
//else if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
// HASHTarget_POW = komodo_adaptivepow_target(Mining_height,HASHTarget,pblock->nTime);
gotinvalid = 0;
while (true)
{
@ -1854,8 +1854,8 @@ void static BitcoinMiner()
arith_uint256 hashTarget;
if ( KOMODO_MININGTHREADS > 0 && ASSETCHAINS_STAKED > 0 && ASSETCHAINS_STAKED < 100 && Mining_height > 10 )
hashTarget = HASHTarget_POW;
else if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
hashTarget = HASHTarget_POW;
//else if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
// hashTarget = HASHTarget_POW;
else hashTarget = HASHTarget;
std::function<bool(std::vector<unsigned char>)> validBlock =
#ifdef ENABLE_WALLET
@ -2048,7 +2048,8 @@ void static BitcoinMiner()
if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
{
UpdateTime(pblock, chainparams.GetConsensus(), pindexPrev);
hashTarget = HASHTarget_POW = komodo_adaptivepow_target(Mining_height,HASHTarget,pblock->nTime);
HASHTarget.SetCompact(pblock->nBits);
//hashTarget = HASHTarget_POW = komodo_adaptivepow_target(Mining_height,HASHTarget,pblock->nTime);
}
/*if ( NOTARY_PUBKEY33[0] == 0 )
{

31
src/pow.cpp
View File

@ -73,11 +73,19 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
// Find the first block in the averaging interval
const CBlockIndex* pindexFirst = pindexLast;
arith_uint256 bnTot {0};
for (int i = 0; pindexFirst && i < params.nPowAveragingWindow; i++) {
arith_uint256 bnTarget,bnTot {0};
uint32_t nbits; int64_t diff,mult = pblock->nTime - pindexFirst->nTime - 7 * ASSETCHAINS_BLOCKTIME;
for (int i = 0; pindexFirst && i < params.nPowAveragingWindow; i++)
{
arith_uint256 bnTmp;
bnTmp.SetCompact(pindexFirst->nBits);
bnTot += bnTmp;
if ( ASSETCHAINS_ADAPTIVEPOW > 0 && i < 12 )
{
diff = pblock->nTime - pindexFirst->nTime - (8+i)*ASSETCHAINS_BLOCKTIME;
if ( diff > mult )
mult = diff;
}
pindexFirst = pindexFirst->pprev;
}
@ -85,9 +93,18 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
if (pindexFirst == NULL)
return nProofOfWorkLimit;
arith_uint256 bnAvg {bnTot / params.nPowAveragingWindow};
return CalculateNextWorkRequired(bnAvg, pindexLast->GetMedianTimePast(), pindexFirst->GetMedianTimePast(), params);
bool fNegative,fOverflow; arith_uint256 easy,origtarget,bnAvg {bnTot / params.nPowAveragingWindow};
nbits = CalculateNextWorkRequired(bnAvg, pindexLast->GetMedianTimePast(), pindexFirst->GetMedianTimePast(), params);
if ( ASSETCHAINS_ADAPTIVEPOW > 0 && mult > 1 )
{
origtarget = bnTarget = arith_uint256().SetCompact(nbits);
bnTarget = bnTarget * arith_uint256(mult * mult);
easy.SetCompact(KOMODO_MINDIFF_NBITS,&fNegative,&fOverflow);
if ( bnTarget < origtarget || bnTarget > easy )
bnTarget = easy;
nbits = bnTarget.GetCompact();
}
return(nbits);
}
unsigned int CalculateNextWorkRequired(arith_uint256 bnAvg,
@ -453,8 +470,8 @@ bool CheckProofOfWork(const CBlockHeader &blkHeader, uint8_t *pubkey33, int32_t
arith_uint256 bnMaxPoSdiff;
bnTarget.SetCompact(KOMODO_MINDIFF_NBITS,&fNegative,&fOverflow);
}
else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
bnTarget = komodo_adaptivepow_target(height,bnTarget,blkHeader.nTime);
//else if ( ASSETCHAINS_ADAPTIVEPOW > 0 && ASSETCHAINS_STAKED == 0 )
// bnTarget = komodo_adaptivepow_target(height,bnTarget,blkHeader.nTime);
// Check proof of work matches claimed amount
if ( UintToArith256(hash = blkHeader.GetHash()) > bnTarget && !blkHeader.IsVerusPOSBlock() )
{

5
src/rpc/mining.cpp
View File

@ -838,9 +838,10 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp)
result.push_back(Pair("ac_staked", (int64_t)ASSETCHAINS_STAKED));
result.push_back(Pair("origtarget", hashTarget.GetHex()));
}
else if ( ASSETCHAINS_ADAPTIVEPOW != 0 )
/*else if ( ASSETCHAINS_ADAPTIVEPOW > 0 )
result.push_back(Pair("target",komodo_adaptivepow_target((int32_t)(pindexPrev->GetHeight()+1),hashTarget,pblock->nTime).GetHex()));
else result.push_back(Pair("target", hashTarget.GetHex()));
else*/
result.push_back(Pair("target", hashTarget.GetHex()));
result.push_back(Pair("mintime", (int64_t)pindexPrev->GetMedianTimePast()+1));
result.push_back(Pair("mutable", aMutable));
result.push_back(Pair("noncerange", "00000000ffffffff"));

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