Merge pull request #2660 from TheBlueMatt/gmfrefactor
Refactor fee rules to make them actually readable.
This commit is contained in:
commit
b4a8a326c0
3 changed files with 15 additions and 29 deletions
37
src/main.cpp
37
src/main.cpp
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@ -719,30 +719,23 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state)
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return true;
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}
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int64 GetMinFee(const CTransaction& tx, unsigned int nBlockSize, bool fAllowFree, enum GetMinFee_mode mode)
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int64 GetMinFee(const CTransaction& tx, bool fAllowFree, enum GetMinFee_mode mode)
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{
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// Base fee is either nMinTxFee or nMinRelayTxFee
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int64 nBaseFee = (mode == GMF_RELAY) ? tx.nMinRelayTxFee : tx.nMinTxFee;
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unsigned int nBytes = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
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unsigned int nNewBlockSize = nBlockSize + nBytes;
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int64 nMinFee = (1 + (int64)nBytes / 1000) * nBaseFee;
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if (fAllowFree)
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{
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if (nBlockSize == 1)
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{
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// Transactions under 10K are free
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// (about 4500 BTC if made of 50 BTC inputs)
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if (nBytes < 10000)
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nMinFee = 0;
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}
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else
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{
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// Free transaction area
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if (nNewBlockSize < 27000)
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nMinFee = 0;
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}
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// There is a free transaction area in blocks created by most miners,
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// * If we are relaying we allow transactions up to DEFAULT_BLOCK_PRIORITY_SIZE - 1000
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// to be considered to fall into this category
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// * If we are creating a transaction we allow transactions up to DEFAULT_BLOCK_PRIORITY_SIZE - 17000
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// (= 10000) to be considered safe and assume they can likely make it into this section
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if (nBytes < (mode == GMF_SEND ? (DEFAULT_BLOCK_PRIORITY_SIZE - 17000) : (DEFAULT_BLOCK_PRIORITY_SIZE - 1000)))
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nMinFee = 0;
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}
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// To limit dust spam, require base fee if any output is less than 0.01
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@ -753,14 +746,6 @@ int64 GetMinFee(const CTransaction& tx, unsigned int nBlockSize, bool fAllowFree
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nMinFee = nBaseFee;
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}
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// Raise the price as the block approaches full
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if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
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{
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if (nNewBlockSize >= MAX_BLOCK_SIZE_GEN)
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return MAX_MONEY;
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nMinFee *= MAX_BLOCK_SIZE_GEN / (MAX_BLOCK_SIZE_GEN - nNewBlockSize);
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}
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if (!MoneyRange(nMinFee))
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nMinFee = MAX_MONEY;
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return nMinFee;
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@ -883,7 +868,7 @@ bool CTxMemPool::accept(CValidationState &state, CTransaction &tx, bool fLimitFr
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unsigned int nSize = ::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION);
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// Don't accept it if it can't get into a block
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int64 txMinFee = GetMinFee(tx, 1000, true, GMF_RELAY);
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int64 txMinFee = GetMinFee(tx, true, GMF_RELAY);
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if (fLimitFree && nFees < txMinFee)
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return error("CTxMemPool::accept() : not enough fees %s, %"PRI64d" < %"PRI64d,
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hash.ToString().c_str(),
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@ -4215,7 +4200,7 @@ CBlockTemplate* CreateNewBlock(CReserveKey& reservekey)
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// How much of the block should be dedicated to high-priority transactions,
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// included regardless of the fees they pay
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unsigned int nBlockPrioritySize = GetArg("-blockprioritysize", 27000);
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unsigned int nBlockPrioritySize = GetArg("-blockprioritysize", DEFAULT_BLOCK_PRIORITY_SIZE);
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nBlockPrioritySize = std::min(nBlockMaxSize, nBlockPrioritySize);
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// Minimum block size you want to create; block will be filled with free transactions
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@ -4343,7 +4328,7 @@ CBlockTemplate* CreateNewBlock(CReserveKey& reservekey)
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// Prioritize by fee once past the priority size or we run out of high-priority
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// transactions:
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if (!fSortedByFee &&
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((nBlockSize + nTxSize >= nBlockPrioritySize) || (dPriority < COIN * 144 / 250)))
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((nBlockSize + nTxSize >= nBlockPrioritySize) || !AllowFree(dPriority)))
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{
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fSortedByFee = true;
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comparer = TxPriorityCompare(fSortedByFee);
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@ -52,6 +52,8 @@ static const int COINBASE_MATURITY = 100;
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static const unsigned int LOCKTIME_THRESHOLD = 500000000; // Tue Nov 5 00:53:20 1985 UTC
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/** Maximum number of script-checking threads allowed */
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static const int MAX_SCRIPTCHECK_THREADS = 16;
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/** Default amount of block size reserved for high-priority transactions (in bytes) */
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static const int DEFAULT_BLOCK_PRIORITY_SIZE = 27000;
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#ifdef USE_UPNP
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static const int fHaveUPnP = true;
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#else
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@ -260,12 +262,11 @@ struct CDiskTxPos : public CDiskBlockPos
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enum GetMinFee_mode
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{
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GMF_BLOCK,
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GMF_RELAY,
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GMF_SEND,
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};
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int64 GetMinFee(const CTransaction& tx, unsigned int nBlockSize = 1, bool fAllowFree = true, enum GetMinFee_mode mode = GMF_BLOCK);
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int64 GetMinFee(const CTransaction& tx, bool fAllowFree, enum GetMinFee_mode mode);
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//
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// Check transaction inputs, and make sure any
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@ -1307,7 +1307,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend,
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// Check that enough fee is included
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int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
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bool fAllowFree = AllowFree(dPriority);
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int64 nMinFee = GetMinFee(wtxNew, 1, fAllowFree, GMF_SEND);
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int64 nMinFee = GetMinFee(wtxNew, fAllowFree, GMF_SEND);
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if (nFeeRet < max(nPayFee, nMinFee))
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{
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nFeeRet = max(nPayFee, nMinFee);
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