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TxMemPool: Change mapTx to a boost::multi_index_container

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Indexes on:
- Tx Hash
- Fee Rate (fee-per-kb)
This commit is contained in:
Ashley Holman
2015-06-24 03:32:20 -05:00
committed by Suhas Daftuar
parent d5d1d2e65a
commit 34628a1807
5 changed files with 127 additions and 32 deletions
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52
src/test/mempool_tests.cpp
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@@ -100,4 +100,56 @@ BOOST_AUTO_TEST_CASE(MempoolRemoveTest)
removed.clear();
}
BOOST_AUTO_TEST_CASE(MempoolIndexingTest)
{
CTxMemPool pool(CFeeRate(0));
/* 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(), CTxMemPoolEntry(tx1, 10000LL, 0, 10.0, 1, true));
/* 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(), CTxMemPoolEntry(tx2, 20000LL, 0, 9.0, 1, true));
/* 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(), CTxMemPoolEntry(tx3, 0LL, 0, 100.0, 1, true));
/* 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(), CTxMemPoolEntry(tx4, 15000LL, 0, 1.0, 1, true));
/* 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;
pool.addUnchecked(tx5.GetHash(), CTxMemPoolEntry(tx5, 10000LL, 1, 10.0, 1, true));
// there should be 4 transactions in the mempool
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_SUITE_END()