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Update adaptivepow to handle variable block times

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This commit is contained in:
jl777
2019-07-29 21:25:49 -11:00
parent b55da04025
commit 02e6851870
4 changed files with 27 additions and 31 deletions
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23
src/komodo_bitcoind.h
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@@ -1416,6 +1416,29 @@ uint32_t komodo_stakehash(uint256 *hashp,char *address,uint8_t *hashbuf,uint256
return(addrhash.uints[0]);
}
arith_uint256 komodo_adaptivepow_target(int32_t height,arith_uint256 bnTarget,uint32_t nTime)
{
arith_uint256 origtarget,easy; int32_t diff,mult; bool fNegative,fOverflow; CBlockIndex *tipindex;
if ( height > 10 && (tipindex= komodo_chainactive(height - 1)) != 0 )
{
diff = (nTime - tipindex->GetMedianTimePast());
if ( diff > 20 * ASSETCHAINS_BLOCKTIME )
{
mult = diff - 19 * ASSETCHAINS_BLOCKTIME;
mult = (mult / ASSETCHAINS_BLOCKTIME) * ASSETCHAINS_BLOCKTIME + ASSETCHAINS_BLOCKTIME / 3;
origtarget = bnTarget;
bnTarget = bnTarget * arith_uint256(mult * mult);
easy.SetCompact(KOMODO_MINDIFF_NBITS,&fNegative,&fOverflow);
if ( bnTarget < origtarget || bnTarget > easy ) // deal with overflow
{
bnTarget = easy;
fprintf(stderr,"miner overflowed, set to mindiff\n");
} else fprintf(stderr,"miner elapsed %d, adjust by factor of %d\n",diff,mult);
}
}
return(bnTarget);
}
arith_uint256 komodo_PoWtarget(int32_t *percPoSp,arith_uint256 target,int32_t height,int32_t goalperc)
{
int32_t oldflag = 0,dispflag = 0;