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Introduce -blockmintxfee

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This commit is contained in:
Alex Morcos 2016-12-13 11:51:51 -05:00
parent 123ea73624
commit daec955fd6
4 changed files with 21 additions and 2 deletions
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10
src/init.cpp
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@ -476,6 +476,7 @@ std::string HelpMessage(HelpMessageMode mode)
strUsage += HelpMessageOpt("-blockmaxweight=<n>", strprintf(_("Set maximum BIP141 block weight (default: %d)"), DEFAULT_BLOCK_MAX_WEIGHT));
strUsage += HelpMessageOpt("-blockmaxsize=<n>", strprintf(_("Set maximum block size in bytes (default: %d)"), DEFAULT_BLOCK_MAX_SIZE));
strUsage += HelpMessageOpt("-blockprioritysize=<n>", strprintf(_("Set maximum size of high-priority/low-fee transactions in bytes (default: %d)"), DEFAULT_BLOCK_PRIORITY_SIZE));
strUsage += HelpMessageOpt("-blockmintxfee=<amt>", strprintf(_("Set lowest fee rate (in %s/kB) for transactions to be included in block creation. (default: %s)"), CURRENCY_UNIT, FormatMoney(DEFAULT_BLOCK_MIN_TX_FEE)));
if (showDebug)
strUsage += HelpMessageOpt("-blockversion=<n>", "Override block version to test forking scenarios");
@ -970,6 +971,15 @@ bool AppInitParameterInteraction()
::minRelayTxFee = CFeeRate(n);
}
// Sanity check argument for min fee for including tx in block
// TODO: Harmonize which arguments need sanity checking and where that happens
if (IsArgSet("-blockmintxfee"))
{
CAmount n = 0;
if (!ParseMoney(GetArg("-blockmintxfee", ""), n))
return InitError(AmountErrMsg("blockmintxfee", GetArg("-blockmintxfee", "")));
}
fRequireStandard = !GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard());
if (chainparams.RequireStandard() && !fRequireStandard)
return InitError(strprintf("acceptnonstdtxn is not currently supported for %s chain", chainparams.NetworkIDString()));

10
src/miner.cpp
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@ -95,12 +95,18 @@ BlockAssembler::BlockAssembler(const CChainParams& _chainparams)
nBlockMaxWeight = nBlockMaxSize * WITNESS_SCALE_FACTOR;
}
}
if (IsArgSet("-blockmintxfee")) {
CAmount n = 0;
ParseMoney(GetArg("-blockmintxfee", ""), n);
blockMinFeeRate = CFeeRate(n);
} else {
blockMinFeeRate = CFeeRate(DEFAULT_BLOCK_MIN_TX_FEE);
}
// Limit weight to between 4K and MAX_BLOCK_WEIGHT-4K for sanity:
nBlockMaxWeight = std::max((unsigned int)4000, std::min((unsigned int)(MAX_BLOCK_WEIGHT-4000), nBlockMaxWeight));
// Limit size to between 1K and MAX_BLOCK_SERIALIZED_SIZE-1K for sanity:
nBlockMaxSize = std::max((unsigned int)1000, std::min((unsigned int)(MAX_BLOCK_SERIALIZED_SIZE-1000), nBlockMaxSize));
// Whether we need to account for byte usage (in addition to weight usage)
fNeedSizeAccounting = (nBlockMaxSize < MAX_BLOCK_SERIALIZED_SIZE-1000);
}
@ -460,7 +466,7 @@ void BlockAssembler::addPackageTxs()
packageSigOpsCost = modit->nSigOpCostWithAncestors;
}
if (packageFees < ::minRelayTxFee.GetFee(packageSize)) {
if (packageFees < blockMinFeeRate.GetFee(packageSize)) {
// Everything else we might consider has a lower fee rate
return;
}

1
src/miner.h
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@ -143,6 +143,7 @@ private:
bool fIncludeWitness;
unsigned int nBlockMaxWeight, nBlockMaxSize;
bool fNeedSizeAccounting;
CFeeRate blockMinFeeRate;
// Information on the current status of the block
uint64_t nBlockWeight;

2
src/policy/policy.h
View File

@ -20,6 +20,8 @@ static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000;
static const unsigned int DEFAULT_BLOCK_PRIORITY_SIZE = 0;
/** Default for -blockmaxweight, which controls the range of block weights the mining code will create **/
static const unsigned int DEFAULT_BLOCK_MAX_WEIGHT = 3000000;
/** Default for -blockmintxfee, which sets the minimum feerate for a transaction in blocks created by mining code **/
static const unsigned int DEFAULT_BLOCK_MIN_TX_FEE = 1000;
/** The maximum weight for transactions we're willing to relay/mine */
static const unsigned int MAX_STANDARD_TX_WEIGHT = 400000;
/** Maximum number of signature check operations in an IsStandard() P2SH script */