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authorMatt Corallo <git@bluematt.me>2017-08-24 11:36:07 -0400
committerMatt Corallo <git@bluematt.me>2017-09-11 15:51:25 -0400
commitba206d2c63a8d3cbd4a8dd47e9ef126af1bb3bb9 (patch)
treeae365cb374d581224b5fee69629e4f235f0d71f4 /src/miner.cpp
parent31e72b284ef54c4c221015c8d700946c6143fb7a (diff)
Deprecate confusing blockmaxsize, fix getmininginfo output
* This removes block-size-limiting code in favor of GBT clients doing the limiting themselves (if at all). * -blockmaxsize is deprecated and only used to calculate an implied blockmaxweight, addressing confusion from multiple users. * getmininginfo's currentblocksize return value was returning garbage values, and has been removed, also removing a GetSerializeSize call in some block generation inner loops and potentially addressing some performance edge cases.
Diffstat (limited to 'src/miner.cpp')
-rw-r--r--src/miner.cpp38
1 files changed, 2 insertions, 36 deletions
diff --git a/src/miner.cpp b/src/miner.cpp
index 249ea172a6..a9989f4b17 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -43,7 +43,6 @@
// its ancestors.
uint64_t nLastBlockTx = 0;
-uint64_t nLastBlockSize = 0;
uint64_t nLastBlockWeight = 0;
int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParams, const CBlockIndex* pindexPrev)
@@ -64,7 +63,6 @@ int64_t UpdateTime(CBlockHeader* pblock, const Consensus::Params& consensusParam
BlockAssembler::Options::Options() {
blockMinFeeRate = CFeeRate(DEFAULT_BLOCK_MIN_TX_FEE);
nBlockMaxWeight = DEFAULT_BLOCK_MAX_WEIGHT;
- nBlockMaxSize = DEFAULT_BLOCK_MAX_SIZE;
}
BlockAssembler::BlockAssembler(const CChainParams& params, const Options& options) : chainparams(params)
@@ -72,10 +70,6 @@ BlockAssembler::BlockAssembler(const CChainParams& params, const Options& option
blockMinFeeRate = options.blockMinFeeRate;
// Limit weight to between 4K and MAX_BLOCK_WEIGHT-4K for sanity:
nBlockMaxWeight = std::max<size_t>(4000, std::min<size_t>(MAX_BLOCK_WEIGHT - 4000, options.nBlockMaxWeight));
- // Limit size to between 1K and MAX_BLOCK_SERIALIZED_SIZE-1K for sanity:
- nBlockMaxSize = std::max<size_t>(1000, std::min<size_t>(MAX_BLOCK_SERIALIZED_SIZE - 1000, options.nBlockMaxSize));
- // Whether we need to account for byte usage (in addition to weight usage)
- fNeedSizeAccounting = (nBlockMaxSize < MAX_BLOCK_SERIALIZED_SIZE - 1000);
}
static BlockAssembler::Options DefaultOptions(const CChainParams& params)
@@ -85,20 +79,7 @@ static BlockAssembler::Options DefaultOptions(const CChainParams& params)
// If only one is given, only restrict the specified resource.
// If both are given, restrict both.
BlockAssembler::Options options;
- options.nBlockMaxWeight = DEFAULT_BLOCK_MAX_WEIGHT;
- options.nBlockMaxSize = DEFAULT_BLOCK_MAX_SIZE;
- bool fWeightSet = false;
- if (gArgs.IsArgSet("-blockmaxweight")) {
- options.nBlockMaxWeight = gArgs.GetArg("-blockmaxweight", DEFAULT_BLOCK_MAX_WEIGHT);
- options.nBlockMaxSize = MAX_BLOCK_SERIALIZED_SIZE;
- fWeightSet = true;
- }
- if (gArgs.IsArgSet("-blockmaxsize")) {
- options.nBlockMaxSize = gArgs.GetArg("-blockmaxsize", DEFAULT_BLOCK_MAX_SIZE);
- if (!fWeightSet) {
- options.nBlockMaxWeight = options.nBlockMaxSize * WITNESS_SCALE_FACTOR;
- }
- }
+ options.nBlockMaxWeight = gArgs.GetArg("-blockmaxweight", DEFAULT_BLOCK_MAX_WEIGHT);
if (gArgs.IsArgSet("-blockmintxfee")) {
CAmount n = 0;
ParseMoney(gArgs.GetArg("-blockmintxfee", ""), n);
@@ -116,7 +97,6 @@ void BlockAssembler::resetBlock()
inBlock.clear();
// Reserve space for coinbase tx
- nBlockSize = 1000;
nBlockWeight = 4000;
nBlockSigOpsCost = 400;
fIncludeWitness = false;
@@ -176,7 +156,6 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc
int64_t nTime1 = GetTimeMicros();
nLastBlockTx = nBlockTx;
- nLastBlockSize = nBlockSize;
nLastBlockWeight = nBlockWeight;
// Create coinbase transaction.
@@ -191,8 +170,7 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc
pblocktemplate->vchCoinbaseCommitment = GenerateCoinbaseCommitment(*pblock, pindexPrev, chainparams.GetConsensus());
pblocktemplate->vTxFees[0] = -nFees;
- uint64_t nSerializeSize = GetSerializeSize(*pblock, SER_NETWORK, PROTOCOL_VERSION);
- LogPrintf("CreateNewBlock(): total size: %u block weight: %u txs: %u fees: %ld sigops %d\n", nSerializeSize, GetBlockWeight(*pblock), nBlockTx, nFees, nBlockSigOpsCost);
+ LogPrintf("CreateNewBlock(): block weight: %u txs: %u fees: %ld sigops %d\n", GetBlockWeight(*pblock), nBlockTx, nFees, nBlockSigOpsCost);
// Fill in header
pblock->hashPrevBlock = pindexPrev->GetBlockHash();
@@ -239,22 +217,13 @@ bool BlockAssembler::TestPackage(uint64_t packageSize, int64_t packageSigOpsCost
// - transaction finality (locktime)
// - premature witness (in case segwit transactions are added to mempool before
// segwit activation)
-// - serialized size (in case -blockmaxsize is in use)
bool BlockAssembler::TestPackageTransactions(const CTxMemPool::setEntries& package)
{
- uint64_t nPotentialBlockSize = nBlockSize; // only used with fNeedSizeAccounting
for (const CTxMemPool::txiter it : package) {
if (!IsFinalTx(it->GetTx(), nHeight, nLockTimeCutoff))
return false;
if (!fIncludeWitness && it->GetTx().HasWitness())
return false;
- if (fNeedSizeAccounting) {
- uint64_t nTxSize = ::GetSerializeSize(it->GetTx(), SER_NETWORK, PROTOCOL_VERSION);
- if (nPotentialBlockSize + nTxSize >= nBlockMaxSize) {
- return false;
- }
- nPotentialBlockSize += nTxSize;
- }
}
return true;
}
@@ -264,9 +233,6 @@ void BlockAssembler::AddToBlock(CTxMemPool::txiter iter)
pblock->vtx.emplace_back(iter->GetSharedTx());
pblocktemplate->vTxFees.push_back(iter->GetFee());
pblocktemplate->vTxSigOpsCost.push_back(iter->GetSigOpCost());
- if (fNeedSizeAccounting) {
- nBlockSize += ::GetSerializeSize(iter->GetTx(), SER_NETWORK, PROTOCOL_VERSION);
- }
nBlockWeight += iter->GetTxWeight();
++nBlockTx;
nBlockSigOpsCost += iter->GetSigOpCost();