Auto merge of #2940 - str4d:nu-activation-mempool-expiry, r=str4d

Mempool improvements, branch ID awareness

Whenever the local chain tip is updated, transactions in the mempool which commit to an
unmineable branch ID (for example, just before a network upgrade activates, where the
next block will have a different branch ID) will be removed.

Includes commits cherry-picked from the following upstream PRs:

- bitcoin/bitcoin#6654
  - Only the mempool index change.
- bitcoin/bitcoin#6776
- bitcoin/bitcoin#7020
- bitcoin/bitcoin#6915

Part of #2074.
This commit is contained in:
Homu
2018-02-19 19:00:30 -08:00
17 changed files with 536 additions and 126 deletions

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@@ -2,6 +2,7 @@
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "consensus/upgrades.h"
#include "main.h"
#include "txmempool.h"
#include "util.h"
@@ -17,6 +18,7 @@ BOOST_AUTO_TEST_CASE(MempoolRemoveTest)
{
// Test CTxMemPool::remove functionality
TestMemPoolEntryHelper entry;
// Parent transaction with three children,
// and three grand-children:
CMutableTransaction txParent;
@@ -60,17 +62,17 @@ BOOST_AUTO_TEST_CASE(MempoolRemoveTest)
BOOST_CHECK_EQUAL(removed.size(), 0);
// Just the parent:
testPool.addUnchecked(txParent.GetHash(), CTxMemPoolEntry(txParent, 0, 0, 0.0, 1));
testPool.addUnchecked(txParent.GetHash(), entry.FromTx(txParent));
testPool.remove(txParent, removed, true);
BOOST_CHECK_EQUAL(removed.size(), 1);
removed.clear();
// Parent, children, grandchildren:
testPool.addUnchecked(txParent.GetHash(), CTxMemPoolEntry(txParent, 0, 0, 0.0, 1));
testPool.addUnchecked(txParent.GetHash(), entry.FromTx(txParent));
for (int i = 0; i < 3; i++)
{
testPool.addUnchecked(txChild[i].GetHash(), CTxMemPoolEntry(txChild[i], 0, 0, 0.0, 1));
testPool.addUnchecked(txGrandChild[i].GetHash(), CTxMemPoolEntry(txGrandChild[i], 0, 0, 0.0, 1));
testPool.addUnchecked(txChild[i].GetHash(), entry.FromTx(txChild[i]));
testPool.addUnchecked(txGrandChild[i].GetHash(), entry.FromTx(txGrandChild[i]));
}
// Remove Child[0], GrandChild[0] should be removed:
testPool.remove(txChild[0], removed, true);
@@ -90,8 +92,8 @@ BOOST_AUTO_TEST_CASE(MempoolRemoveTest)
// Add children and grandchildren, but NOT the parent (simulate the parent being in a block)
for (int i = 0; i < 3; i++)
{
testPool.addUnchecked(txChild[i].GetHash(), CTxMemPoolEntry(txChild[i], 0, 0, 0.0, 1));
testPool.addUnchecked(txGrandChild[i].GetHash(), CTxMemPoolEntry(txGrandChild[i], 0, 0, 0.0, 1));
testPool.addUnchecked(txChild[i].GetHash(), entry.FromTx(txChild[i]));
testPool.addUnchecked(txGrandChild[i].GetHash(), entry.FromTx(txGrandChild[i]));
}
// Now remove the parent, as might happen if a block-re-org occurs but the parent cannot be
// put into the mempool (maybe because it is non-standard):
@@ -101,4 +103,113 @@ BOOST_AUTO_TEST_CASE(MempoolRemoveTest)
removed.clear();
}
BOOST_AUTO_TEST_CASE(MempoolIndexingTest)
{
CTxMemPool pool(CFeeRate(0));
TestMemPoolEntryHelper entry;
entry.hadNoDependencies = true;
/* 3rd highest fee */
CMutableTransaction tx1 = CMutableTransaction();
tx1.vout.resize(1);
tx1.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx1.vout[0].nValue = 10 * COIN;
pool.addUnchecked(tx1.GetHash(), entry.Fee(10000LL).Priority(10.0).FromTx(tx1));
/* highest fee */
CMutableTransaction tx2 = CMutableTransaction();
tx2.vout.resize(1);
tx2.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx2.vout[0].nValue = 2 * COIN;
pool.addUnchecked(tx2.GetHash(), entry.Fee(20000LL).Priority(9.0).FromTx(tx2));
/* lowest fee */
CMutableTransaction tx3 = CMutableTransaction();
tx3.vout.resize(1);
tx3.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx3.vout[0].nValue = 5 * COIN;
pool.addUnchecked(tx3.GetHash(), entry.Fee(0LL).Priority(100.0).FromTx(tx3));
/* 2nd highest fee */
CMutableTransaction tx4 = CMutableTransaction();
tx4.vout.resize(1);
tx4.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx4.vout[0].nValue = 6 * COIN;
pool.addUnchecked(tx4.GetHash(), entry.Fee(15000LL).Priority(1.0).FromTx(tx4));
/* equal fee rate to tx1, but newer */
CMutableTransaction tx5 = CMutableTransaction();
tx5.vout.resize(1);
tx5.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx5.vout[0].nValue = 11 * COIN;
entry.nTime = 1;
entry.dPriority = 10.0;
pool.addUnchecked(tx5.GetHash(), entry.Fee(10000LL).FromTx(tx5));
BOOST_CHECK_EQUAL(pool.size(), 5);
// Check the fee-rate index is in order, should be tx2, tx4, tx1, tx5, tx3
CTxMemPool::indexed_transaction_set::nth_index<1>::type::iterator it = pool.mapTx.get<1>().begin();
BOOST_CHECK_EQUAL(it++->GetTx().GetHash().ToString(), tx2.GetHash().ToString());
BOOST_CHECK_EQUAL(it++->GetTx().GetHash().ToString(), tx4.GetHash().ToString());
BOOST_CHECK_EQUAL(it++->GetTx().GetHash().ToString(), tx1.GetHash().ToString());
BOOST_CHECK_EQUAL(it++->GetTx().GetHash().ToString(), tx5.GetHash().ToString());
BOOST_CHECK_EQUAL(it++->GetTx().GetHash().ToString(), tx3.GetHash().ToString());
BOOST_CHECK(it == pool.mapTx.get<1>().end());
}
BOOST_AUTO_TEST_CASE(RemoveWithoutBranchId) {
CTxMemPool pool(CFeeRate(0));
TestMemPoolEntryHelper entry;
entry.nFee = 10000LL;
entry.hadNoDependencies = true;
// Add some Sprout transactions
for (auto i = 1; i < 11; i++) {
CMutableTransaction tx = CMutableTransaction();
tx.vout.resize(1);
tx.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx.vout[0].nValue = i * COIN;
pool.addUnchecked(tx.GetHash(), entry.BranchId(NetworkUpgradeInfo[Consensus::BASE_SPROUT].nBranchId).FromTx(tx));
}
BOOST_CHECK_EQUAL(pool.size(), 10);
// Check the pool only contains Sprout transactions
for (CTxMemPool::indexed_transaction_set::const_iterator it = pool.mapTx.begin(); it != pool.mapTx.end(); it++) {
BOOST_CHECK_EQUAL(it->GetValidatedBranchId(), NetworkUpgradeInfo[Consensus::BASE_SPROUT].nBranchId);
}
// Add some dummy transactions
for (auto i = 1; i < 11; i++) {
CMutableTransaction tx = CMutableTransaction();
tx.vout.resize(1);
tx.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx.vout[0].nValue = i * COIN + 100;
pool.addUnchecked(tx.GetHash(), entry.BranchId(NetworkUpgradeInfo[Consensus::UPGRADE_TESTDUMMY].nBranchId).FromTx(tx));
}
BOOST_CHECK_EQUAL(pool.size(), 20);
// Add some Overwinter transactions
for (auto i = 1; i < 11; i++) {
CMutableTransaction tx = CMutableTransaction();
tx.vout.resize(1);
tx.vout[0].scriptPubKey = CScript() << OP_11 << OP_EQUAL;
tx.vout[0].nValue = i * COIN + 200;
pool.addUnchecked(tx.GetHash(), entry.BranchId(NetworkUpgradeInfo[Consensus::UPGRADE_OVERWINTER].nBranchId).FromTx(tx));
}
BOOST_CHECK_EQUAL(pool.size(), 30);
// Remove transactions that are not for Overwinter
pool.removeWithoutBranchId(NetworkUpgradeInfo[Consensus::UPGRADE_OVERWINTER].nBranchId);
BOOST_CHECK_EQUAL(pool.size(), 10);
// Check the pool only contains Overwinter transactions
for (CTxMemPool::indexed_transaction_set::const_iterator it = pool.mapTx.begin(); it != pool.mapTx.end(); it++) {
BOOST_CHECK_EQUAL(it->GetValidatedBranchId(), NetworkUpgradeInfo[Consensus::UPGRADE_OVERWINTER].nBranchId);
}
// Roll back to Sprout
pool.removeWithoutBranchId(NetworkUpgradeInfo[Consensus::BASE_SPROUT].nBranchId);
BOOST_CHECK_EQUAL(pool.size(), 0);
}
BOOST_AUTO_TEST_SUITE_END()

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@@ -143,6 +143,10 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
CMutableTransaction tx,tx2;
CScript script;
uint256 hash;
TestMemPoolEntryHelper entry;
entry.nFee = 11;
entry.dPriority = 111.0;
entry.nHeight = 11;
LOCK(cs_main);
fCheckpointsEnabled = false;
@@ -281,7 +285,8 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
{
tx.vout[0].nValue -= 10;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
bool spendsCoinbase = (i == 0) ? true : false; // only first tx spends coinbase
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(spendsCoinbase).FromTx(tx));
tx.vin[0].prevout.hash = hash;
}
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
@@ -301,7 +306,8 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
{
tx.vout[0].nValue -= 350;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
bool spendsCoinbase = (i == 0) ? true : false; // only first tx spends coinbase
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(spendsCoinbase).FromTx(tx));
tx.vin[0].prevout.hash = hash;
}
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
@@ -310,7 +316,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
// orphan in mempool
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).FromTx(tx));
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
delete pblocktemplate;
mempool.clear();
@@ -320,7 +326,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
tx.vin[0].prevout.hash = txFirst[1]->GetHash();
tx.vout[0].nValue = 39000LL;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
tx.vin[0].prevout.hash = hash;
tx.vin.resize(2);
tx.vin[1].scriptSig = CScript() << OP_1;
@@ -328,7 +334,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
tx.vin[1].prevout.n = 0;
tx.vout[0].nValue = 49000LL;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
delete pblocktemplate;
mempool.clear();
@@ -339,7 +345,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
tx.vin[0].scriptSig = CScript() << OP_0 << OP_1;
tx.vout[0].nValue = 0;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(false).FromTx(tx));
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
delete pblocktemplate;
mempool.clear();
@@ -352,12 +358,12 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
script = CScript() << OP_0;
tx.vout[0].scriptPubKey = GetScriptForDestination(CScriptID(script));
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
tx.vin[0].prevout.hash = hash;
tx.vin[0].scriptSig = CScript() << (std::vector<unsigned char>)script;
tx.vout[0].nValue -= 10000;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(false).FromTx(tx));
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
delete pblocktemplate;
mempool.clear();
@@ -368,10 +374,10 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
tx.vout[0].nValue = 49000LL;
tx.vout[0].scriptPubKey = CScript() << OP_1;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
tx.vout[0].scriptPubKey = CScript() << OP_2;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));
delete pblocktemplate;
mempool.clear();
@@ -397,7 +403,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
tx.vout[0].scriptPubKey = CScript() << OP_1;
tx.nLockTime = chainActive.Tip()->nHeight+1;
hash = tx.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx));
BOOST_CHECK(!CheckFinalTx(tx, LOCKTIME_MEDIAN_TIME_PAST));
// time locked
@@ -411,7 +417,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
tx2.vout[0].scriptPubKey = CScript() << OP_1;
tx2.nLockTime = chainActive.Tip()->GetMedianTimePast()+1;
hash = tx2.GetHash();
mempool.addUnchecked(hash, CTxMemPoolEntry(tx2, 11, GetTime(), 111.0, 11));
mempool.addUnchecked(hash, entry.Time(GetTime()).SpendsCoinbase(true).FromTx(tx2));
BOOST_CHECK(!CheckFinalTx(tx2, LOCKTIME_MEDIAN_TIME_PAST));
BOOST_CHECK(pblocktemplate = CreateNewBlock(scriptPubKey));

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@@ -16,6 +16,7 @@ BOOST_FIXTURE_TEST_SUITE(policyestimator_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
{
CTxMemPool mpool(CFeeRate(1000));
TestMemPoolEntryHelper entry;
CAmount basefee(2000);
double basepri = 1e6;
CAmount deltaFee(100);
@@ -63,7 +64,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
for (int k = 0; k < 5; k++) { // add 4 fee txs for every priority tx
tx.vin[0].prevout.n = 10000*blocknum+100*j+k; // make transaction unique
uint256 hash = tx.GetHash();
mpool.addUnchecked(hash, CTxMemPoolEntry(tx, feeV[k/4][j], GetTime(), priV[k/4][j], blocknum, mpool.HasNoInputsOf(tx)));
mpool.addUnchecked(hash, entry.Fee(feeV[k/4][j]).Time(GetTime()).Priority(priV[k/4][j]).Height(blocknum).FromTx(tx, &mpool));
txHashes[j].push_back(hash);
}
}
@@ -132,7 +133,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
for (int k = 0; k < 5; k++) { // add 4 fee txs for every priority tx
tx.vin[0].prevout.n = 10000*blocknum+100*j+k;
uint256 hash = tx.GetHash();
mpool.addUnchecked(hash, CTxMemPoolEntry(tx, feeV[k/4][j], GetTime(), priV[k/4][j], blocknum, mpool.HasNoInputsOf(tx)));
mpool.addUnchecked(hash, entry.Fee(feeV[k/4][j]).Time(GetTime()).Priority(priV[k/4][j]).Height(blocknum).FromTx(tx, &mpool));
txHashes[j].push_back(hash);
}
}
@@ -168,7 +169,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
for (int k = 0; k < 5; k++) { // add 4 fee txs for every priority tx
tx.vin[0].prevout.n = 10000*blocknum+100*j+k;
uint256 hash = tx.GetHash();
mpool.addUnchecked(hash, CTxMemPoolEntry(tx, feeV[k/4][j], GetTime(), priV[k/4][j], blocknum, mpool.HasNoInputsOf(tx)));
mpool.addUnchecked(hash, entry.Fee(feeV[k/4][j]).Time(GetTime()).Priority(priV[k/4][j]).Height(blocknum).FromTx(tx, &mpool));
CTransaction btx;
if (mpool.lookup(hash, btx))
block.push_back(btx);

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@@ -12,6 +12,7 @@
#include "main.h"
#include "random.h"
#include "txdb.h"
#include "txmempool.h"
#include "ui_interface.h"
#include "util.h"
#ifdef ENABLE_WALLET
@@ -102,6 +103,13 @@ TestingSetup::~TestingSetup()
boost::filesystem::remove_all(pathTemp);
}
CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(CMutableTransaction &tx, CTxMemPool *pool) {
return CTxMemPoolEntry(tx, nFee, nTime, dPriority, nHeight,
pool ? pool->HasNoInputsOf(tx) : hadNoDependencies,
spendsCoinbase, nBranchId);
}
void Shutdown(void* parg)
{
exit(0);

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@@ -1,6 +1,7 @@
#ifndef BITCOIN_TEST_TEST_BITCOIN_H
#define BITCOIN_TEST_TEST_BITCOIN_H
#include "consensus/upgrades.h"
#include "pubkey.h"
#include "txdb.h"
@@ -36,4 +37,34 @@ struct TestingSetup: public JoinSplitTestingSetup {
~TestingSetup();
};
class CTxMemPoolEntry;
class CTxMemPool;
struct TestMemPoolEntryHelper
{
// Default values
CAmount nFee;
int64_t nTime;
double dPriority;
unsigned int nHeight;
bool hadNoDependencies;
bool spendsCoinbase;
uint32_t nBranchId;
TestMemPoolEntryHelper() :
nFee(0), nTime(0), dPriority(0.0), nHeight(1),
hadNoDependencies(false), spendsCoinbase(false),
nBranchId(SPROUT_BRANCH_ID) { }
CTxMemPoolEntry FromTx(CMutableTransaction &tx, CTxMemPool *pool = NULL);
// Change the default value
TestMemPoolEntryHelper &Fee(CAmount _fee) { nFee = _fee; return *this; }
TestMemPoolEntryHelper &Time(int64_t _time) { nTime = _time; return *this; }
TestMemPoolEntryHelper &Priority(double _priority) { dPriority = _priority; return *this; }
TestMemPoolEntryHelper &Height(unsigned int _height) { nHeight = _height; return *this; }
TestMemPoolEntryHelper &HadNoDependencies(bool _hnd) { hadNoDependencies = _hnd; return *this; }
TestMemPoolEntryHelper &SpendsCoinbase(bool _flag) { spendsCoinbase = _flag; return *this; }
TestMemPoolEntryHelper &BranchId(uint32_t _branchId) { nBranchId = _branchId; return *this; }
};
#endif