Merge #9602: Remove coin age priority and free transactions - implementation

b421e6d Update example bitcoin.conf (Alex Morcos)
7d4e950 Allow setting minrelaytxfee to 0 (Alex Morcos)
359e8a0 [cleanup] Remove coin age priority completely. (Alex Morcos)
f9b9371 [rpc] Remove priorityDelta from prioritisetransaction (Alex Morcos)
49be7e1 [rpc] Remove priority information from mempool RPC calls (Alex Morcos)
0315888 [test] Remove priority from tests (Alex Morcos)
f838005 No longer allow "free" transactions (Alex Morcos)
ad727f4 [rpc] sendrawtransaction no longer bypasses minRelayTxFee (Alex Morcos)
fe282ac [cleanup] Remove estimatePriority and estimateSmartPriority (Alex Morcos)
400b151 [debug] Change -printpriority option (Alex Morcos)
272b25a [mining] Remove -blockprioritysize. (Alex Morcos)
12839cd [rpc] Remove estimatepriority and estimatesmartpriority. (Alex Morcos)
ddf58c7 wallet: Remove sendfree (MarcoFalke)

Tree-SHA512: a9a4499405923ce794ef18f9e334dbbd59dfc73a3dc2df6f85cc9c62af6f353ec2eed9c2d5e58e904f918d0d7ab738f403dd4939d9bc2276136864fe63710782

5 files changed, 33 insertions, 46 deletions

diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp
index 91f549fe48..a3f706d9af 100644
--- a/src/test/mempool_tests.cpp
+++ b/src/test/mempool_tests.cpp
@@ -126,28 +126,28 @@ BOOST_AUTO_TEST_CASE(MempoolIndexingTest)
     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));
+    pool.addUnchecked(tx1.GetHash(), entry.Fee(10000LL).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));
+    pool.addUnchecked(tx2.GetHash(), entry.Fee(20000LL).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));
+    pool.addUnchecked(tx3.GetHash(), entry.Fee(0LL).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));
+    pool.addUnchecked(tx4.GetHash(), entry.Fee(15000LL).FromTx(tx4));
 
     /* equal fee rate to tx1, but newer */
     CMutableTransaction tx5 = CMutableTransaction();
@@ -155,7 +155,6 @@ BOOST_AUTO_TEST_CASE(MempoolIndexingTest)
     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);
 
@@ -328,14 +327,14 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest)
     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));
+    pool.addUnchecked(tx1.GetHash(), entry.Fee(10000LL).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));
+    pool.addUnchecked(tx2.GetHash(), entry.Fee(20000LL).FromTx(tx2));
     uint64_t tx2Size = GetVirtualTransactionSize(tx2);
 
     /* lowest fee */
@@ -343,14 +342,14 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest)
     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));
+    pool.addUnchecked(tx3.GetHash(), entry.Fee(0LL).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));
+    pool.addUnchecked(tx4.GetHash(), entry.Fee(15000LL).FromTx(tx4));
 
     /* equal fee rate to tx1, but newer */
     CMutableTransaction tx5 = CMutableTransaction();
@@ -408,7 +407,6 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest)
     /* set the fee to just below tx2's feerate when including ancestor */
     CAmount fee = (20000/tx2Size)*(tx7Size + tx6Size) - 1;
 
-    //CTxMemPoolEntry entry7(tx7, fee, 2, 10.0, 1, true);
     pool.addUnchecked(tx7.GetHash(), entry.Fee(fee).FromTx(tx7));
     BOOST_CHECK_EQUAL(pool.size(), 7);
     sortedOrder.insert(sortedOrder.begin()+1, tx7.GetHash().ToString());
@@ -434,7 +432,6 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
 {
     CTxMemPool pool(CFeeRate(1000));
     TestMemPoolEntryHelper entry;
-    entry.dPriority = 10.0;
 
     CMutableTransaction tx1 = CMutableTransaction();
     tx1.vin.resize(1);
@@ -442,7 +439,7 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     tx1.vout.resize(1);
     tx1.vout[0].scriptPubKey = CScript() << OP_1 << OP_EQUAL;
     tx1.vout[0].nValue = 10 * COIN;
-    pool.addUnchecked(tx1.GetHash(), entry.Fee(10000LL).FromTx(tx1, &pool));
+    pool.addUnchecked(tx1.GetHash(), entry.Fee(10000LL).FromTx(tx1));
 
     CMutableTransaction tx2 = CMutableTransaction();
     tx2.vin.resize(1);
@@ -450,7 +447,7 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     tx2.vout.resize(1);
     tx2.vout[0].scriptPubKey = CScript() << OP_2 << OP_EQUAL;
     tx2.vout[0].nValue = 10 * COIN;
-    pool.addUnchecked(tx2.GetHash(), entry.Fee(5000LL).FromTx(tx2, &pool));
+    pool.addUnchecked(tx2.GetHash(), entry.Fee(5000LL).FromTx(tx2));
 
     pool.TrimToSize(pool.DynamicMemoryUsage()); // should do nothing
     BOOST_CHECK(pool.exists(tx1.GetHash()));
@@ -460,7 +457,7 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     BOOST_CHECK(pool.exists(tx1.GetHash()));
     BOOST_CHECK(!pool.exists(tx2.GetHash()));
 
-    pool.addUnchecked(tx2.GetHash(), entry.FromTx(tx2, &pool));
+    pool.addUnchecked(tx2.GetHash(), entry.FromTx(tx2));
     CMutableTransaction tx3 = CMutableTransaction();
     tx3.vin.resize(1);
     tx3.vin[0].prevout = COutPoint(tx2.GetHash(), 0);
@@ -468,7 +465,7 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     tx3.vout.resize(1);
     tx3.vout[0].scriptPubKey = CScript() << OP_3 << OP_EQUAL;
     tx3.vout[0].nValue = 10 * COIN;
-    pool.addUnchecked(tx3.GetHash(), entry.Fee(20000LL).FromTx(tx3, &pool));
+    pool.addUnchecked(tx3.GetHash(), entry.Fee(20000LL).FromTx(tx3));
 
     pool.TrimToSize(pool.DynamicMemoryUsage() * 3 / 4); // tx3 should pay for tx2 (CPFP)
     BOOST_CHECK(!pool.exists(tx1.GetHash()));
@@ -531,10 +528,10 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     tx7.vout[1].scriptPubKey = CScript() << OP_7 << OP_EQUAL;
     tx7.vout[1].nValue = 10 * COIN;
 
-    pool.addUnchecked(tx4.GetHash(), entry.Fee(7000LL).FromTx(tx4, &pool));
-    pool.addUnchecked(tx5.GetHash(), entry.Fee(1000LL).FromTx(tx5, &pool));
-    pool.addUnchecked(tx6.GetHash(), entry.Fee(1100LL).FromTx(tx6, &pool));
-    pool.addUnchecked(tx7.GetHash(), entry.Fee(9000LL).FromTx(tx7, &pool));
+    pool.addUnchecked(tx4.GetHash(), entry.Fee(7000LL).FromTx(tx4));
+    pool.addUnchecked(tx5.GetHash(), entry.Fee(1000LL).FromTx(tx5));
+    pool.addUnchecked(tx6.GetHash(), entry.Fee(1100LL).FromTx(tx6));
+    pool.addUnchecked(tx7.GetHash(), entry.Fee(9000LL).FromTx(tx7));
 
     // we only require this remove, at max, 2 txn, because its not clear what we're really optimizing for aside from that
     pool.TrimToSize(pool.DynamicMemoryUsage() - 1);
@@ -543,8 +540,8 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     BOOST_CHECK(!pool.exists(tx7.GetHash()));
 
     if (!pool.exists(tx5.GetHash()))
-        pool.addUnchecked(tx5.GetHash(), entry.Fee(1000LL).FromTx(tx5, &pool));
-    pool.addUnchecked(tx7.GetHash(), entry.Fee(9000LL).FromTx(tx7, &pool));
+        pool.addUnchecked(tx5.GetHash(), entry.Fee(1000LL).FromTx(tx5));
+    pool.addUnchecked(tx7.GetHash(), entry.Fee(9000LL).FromTx(tx7));
 
     pool.TrimToSize(pool.DynamicMemoryUsage() / 2); // should maximize mempool size by only removing 5/7
     BOOST_CHECK(pool.exists(tx4.GetHash()));
@@ -552,8 +549,8 @@ BOOST_AUTO_TEST_CASE(MempoolSizeLimitTest)
     BOOST_CHECK(pool.exists(tx6.GetHash()));
     BOOST_CHECK(!pool.exists(tx7.GetHash()));
 
-    pool.addUnchecked(tx5.GetHash(), entry.Fee(1000LL).FromTx(tx5, &pool));
-    pool.addUnchecked(tx7.GetHash(), entry.Fee(9000LL).FromTx(tx7, &pool));
+    pool.addUnchecked(tx5.GetHash(), entry.Fee(1000LL).FromTx(tx5));
+    pool.addUnchecked(tx7.GetHash(), entry.Fee(9000LL).FromTx(tx7));
 
     std::vector<CTransactionRef> vtx;
     SetMockTime(42);
diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp
index 5dbbb1b634..41f42c7b88 100644
--- a/src/test/miner_tests.cpp
+++ b/src/test/miner_tests.cpp
@@ -88,7 +88,6 @@ bool TestSequenceLocks(const CTransaction &tx, int flags)
 // Test suite for ancestor feerate transaction selection.
 // Implemented as an additional function, rather than a separate test case,
 // to allow reusing the blockchain created in CreateNewBlock_validity.
-// Note that this test assumes blockprioritysize is 0.
 void TestPackageSelection(const CChainParams& chainparams, CScript scriptPubKey, std::vector<CTransactionRef>& txFirst)
 {
     // Test the ancestor feerate transaction selection.
@@ -203,7 +202,6 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     uint256 hash;
     TestMemPoolEntryHelper entry;
     entry.nFee = 11;
-    entry.dPriority = 111.0;
     entry.nHeight = 11;
 
     LOCK(cs_main);
@@ -308,7 +306,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     BOOST_CHECK_THROW(AssemblerForTest(chainparams).CreateNewBlock(scriptPubKey), std::runtime_error);
     mempool.clear();
 
-    // child with higher priority than parent
+    // child with higher feerate than parent
     tx.vin[0].scriptSig = CScript() << OP_1;
     tx.vin[0].prevout.hash = txFirst[1]->GetHash();
     tx.vout[0].nValue = BLOCKSUBSIDY-HIGHFEE;
diff --git a/src/test/policyestimator_tests.cpp b/src/test/policyestimator_tests.cpp
index 0c060801bc..d01ef7c6ee 100644
--- a/src/test/policyestimator_tests.cpp
+++ b/src/test/policyestimator_tests.cpp
@@ -56,7 +56,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
             for (int k = 0; k < 4; k++) { // add 4 fee txs
                 tx.vin[0].prevout.n = 10000*blocknum+100*j+k; // make transaction unique
                 uint256 hash = tx.GetHash();
-                mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
+                mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Height(blocknum).FromTx(tx));
                 txHashes[j].push_back(hash);
             }
         }
@@ -132,7 +132,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
             for (int k = 0; k < 4; k++) { // add 4 fee txs
                 tx.vin[0].prevout.n = 10000*blocknum+100*j+k;
                 uint256 hash = tx.GetHash();
-                mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
+                mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Height(blocknum).FromTx(tx));
                 txHashes[j].push_back(hash);
             }
         }
@@ -169,7 +169,7 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
             for (int k = 0; k < 4; k++) { // add 4 fee txs
                 tx.vin[0].prevout.n = 10000*blocknum+100*j+k;
                 uint256 hash = tx.GetHash();
-                mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
+                mpool.addUnchecked(hash, entry.Fee(feeV[j]).Time(GetTime()).Height(blocknum).FromTx(tx));
                 CTransactionRef ptx = mpool.get(hash);
                 if (ptx)
                     block.push_back(ptx);
@@ -185,15 +185,13 @@ BOOST_AUTO_TEST_CASE(BlockPolicyEstimates)
     }
 
     // Test that if the mempool is limited, estimateSmartFee won't return a value below the mempool min fee
-    // and that estimateSmartPriority returns essentially an infinite value
-    mpool.addUnchecked(tx.GetHash(),  entry.Fee(feeV[5]).Time(GetTime()).Priority(0).Height(blocknum).FromTx(tx, &mpool));
+    mpool.addUnchecked(tx.GetHash(),  entry.Fee(feeV[5]).Time(GetTime()).Height(blocknum).FromTx(tx));
     // evict that transaction which should set a mempool min fee of minRelayTxFee + feeV[5]
     mpool.TrimToSize(1);
     BOOST_CHECK(mpool.GetMinFee(1).GetFeePerK() > feeV[5]);
     for (int i = 1; i < 10; i++) {
         BOOST_CHECK(mpool.estimateSmartFee(i).GetFeePerK() >= mpool.estimateFee(i).GetFeePerK());
         BOOST_CHECK(mpool.estimateSmartFee(i).GetFeePerK() >= mpool.GetMinFee(1).GetFeePerK());
-        BOOST_CHECK(mpool.estimateSmartPriority(i) == INF_PRIORITY);
     }
 }
 
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index 6039424480..2297644c0b 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -141,17 +141,14 @@ TestChain100Setup::~TestChain100Setup()
 }
 
 
-CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CMutableTransaction &tx, CTxMemPool *pool) {
+CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CMutableTransaction &tx) {
     CTransaction txn(tx);
-    return FromTx(txn, pool);
+    return FromTx(txn);
 }
 
-CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CTransaction &txn, CTxMemPool *pool) {
-    // Hack to assume either it's completely dependent on other mempool txs or not at all
-    CAmount inChainValue = pool && pool->HasNoInputsOf(txn) ? txn.GetValueOut() : 0;
-
-    return CTxMemPoolEntry(MakeTransactionRef(txn), nFee, nTime, dPriority, nHeight,
-                           inChainValue, spendsCoinbase, sigOpCost, lp);
+CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CTransaction &txn) {
+    return CTxMemPoolEntry(MakeTransactionRef(txn), nFee, nTime, nHeight,
+                           spendsCoinbase, sigOpCost, lp);
 }
 
 void Shutdown(void* parg)
diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h
index 5ef6fa764f..a593f136eb 100644
--- a/src/test/test_bitcoin.h
+++ b/src/test/test_bitcoin.h
@@ -61,30 +61,27 @@ struct TestChain100Setup : public TestingSetup {
 };
 
 class CTxMemPoolEntry;
-class CTxMemPool;
 
 struct TestMemPoolEntryHelper
 {
     // Default values
     CAmount nFee;
     int64_t nTime;
-    double dPriority;
     unsigned int nHeight;
     bool spendsCoinbase;
     unsigned int sigOpCost;
     LockPoints lp;
 
     TestMemPoolEntryHelper() :
-        nFee(0), nTime(0), dPriority(0.0), nHeight(1),
+        nFee(0), nTime(0), nHeight(1),
         spendsCoinbase(false), sigOpCost(4) { }
     
-    CTxMemPoolEntry FromTx(const CMutableTransaction &tx, CTxMemPool *pool = NULL);
-    CTxMemPoolEntry FromTx(const CTransaction &tx, CTxMemPool *pool = NULL);
+    CTxMemPoolEntry FromTx(const CMutableTransaction &tx);
+    CTxMemPoolEntry FromTx(const CTransaction &tx);
 
     // 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 &SpendsCoinbase(bool _flag) { spendsCoinbase = _flag; return *this; }
     TestMemPoolEntryHelper &SigOpsCost(unsigned int _sigopsCost) { sigOpCost = _sigopsCost; return *this; }