RPC: augment getblockchaininfo bip9_softforks data
This commit is contained in:
mruddy
parent
d736a6eb1f
commit
fc146095d2
7 changed files with 121 additions and 44 deletions
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@ -81,6 +81,9 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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return info['bip9_softforks'][key]
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def test_BIP(self, bipName, activated_version, invalidate, invalidatePostSignature, bitno):
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assert_equal(self.get_bip9_status(bipName)['status'], 'defined')
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assert_equal(self.get_bip9_status(bipName)['since'], 0)
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# generate some coins for later
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self.coinbase_blocks = self.nodes[0].generate(2)
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self.height = 3 # height of the next block to build
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@ -89,6 +92,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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self.last_block_time = int(time.time())
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assert_equal(self.get_bip9_status(bipName)['status'], 'defined')
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assert_equal(self.get_bip9_status(bipName)['since'], 0)
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tmpl = self.nodes[0].getblocktemplate({})
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assert(bipName not in tmpl['rules'])
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assert(bipName not in tmpl['vbavailable'])
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@ -101,6 +105,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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yield TestInstance(test_blocks, sync_every_block=False)
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assert_equal(self.get_bip9_status(bipName)['status'], 'started')
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assert_equal(self.get_bip9_status(bipName)['since'], 144)
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tmpl = self.nodes[0].getblocktemplate({})
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assert(bipName not in tmpl['rules'])
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assert_equal(tmpl['vbavailable'][bipName], bitno)
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@ -117,6 +122,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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yield TestInstance(test_blocks, sync_every_block=False)
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assert_equal(self.get_bip9_status(bipName)['status'], 'started')
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assert_equal(self.get_bip9_status(bipName)['since'], 144)
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tmpl = self.nodes[0].getblocktemplate({})
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assert(bipName not in tmpl['rules'])
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assert_equal(tmpl['vbavailable'][bipName], bitno)
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@ -133,6 +139,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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yield TestInstance(test_blocks, sync_every_block=False)
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assert_equal(self.get_bip9_status(bipName)['status'], 'locked_in')
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assert_equal(self.get_bip9_status(bipName)['since'], 432)
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tmpl = self.nodes[0].getblocktemplate({})
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assert(bipName not in tmpl['rules'])
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@ -142,6 +149,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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yield TestInstance(test_blocks, sync_every_block=False)
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assert_equal(self.get_bip9_status(bipName)['status'], 'locked_in')
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assert_equal(self.get_bip9_status(bipName)['since'], 432)
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tmpl = self.nodes[0].getblocktemplate({})
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assert(bipName not in tmpl['rules'])
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@ -167,6 +175,7 @@ class BIP9SoftForksTest(ComparisonTestFramework):
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yield TestInstance([[block, True]])
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assert_equal(self.get_bip9_status(bipName)['status'], 'active')
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assert_equal(self.get_bip9_status(bipName)['since'], 576)
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tmpl = self.nodes[0].getblocktemplate({})
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assert(bipName in tmpl['rules'])
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assert(bipName not in tmpl['vbavailable'])
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@ -6918,6 +6918,12 @@ ThresholdState VersionBitsTipState(const Consensus::Params& params, Consensus::D
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return VersionBitsState(chainActive.Tip(), params, pos, versionbitscache);
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}
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int VersionBitsTipStateSinceHeight(const Consensus::Params& params, Consensus::DeploymentPos pos)
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{
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LOCK(cs_main);
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return VersionBitsStateSinceHeight(chainActive.Tip(), params, pos, versionbitscache);
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}
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class CMainCleanup
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{
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public:
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@ -297,7 +297,8 @@ std::string FormatStateMessage(const CValidationState &state);
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/** Get the BIP9 state for a given deployment at the current tip. */
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ThresholdState VersionBitsTipState(const Consensus::Params& params, Consensus::DeploymentPos pos);
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/** Get the block height at which the BIP9 deployment switched into the state for the block building on the current tip. */
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int VersionBitsTipStateSinceHeight(const Consensus::Params& params, Consensus::DeploymentPos pos);
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/**
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* Count ECDSA signature operations the old-fashioned (pre-0.6) way
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@ -1009,6 +1009,7 @@ static UniValue BIP9SoftForkDesc(const Consensus::Params& consensusParams, Conse
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}
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rv.push_back(Pair("startTime", consensusParams.vDeployments[id].nStartTime));
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rv.push_back(Pair("timeout", consensusParams.vDeployments[id].nTimeout));
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rv.push_back(Pair("since", VersionBitsTipStateSinceHeight(consensusParams, id)));
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return rv;
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}
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@ -1053,7 +1054,8 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp)
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" \"status\": \"xxxx\", (string) one of \"defined\", \"started\", \"locked_in\", \"active\", \"failed\"\n"
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" \"bit\": xx, (numeric) the bit (0-28) in the block version field used to signal this softfork (only for \"started\" status)\n"
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" \"startTime\": xx, (numeric) the minimum median time past of a block at which the bit gains its meaning\n"
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" \"timeout\": xx (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in\n"
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" \"timeout\": xx, (numeric) the median time past of a block at which the deployment is considered failed if not yet locked in\n"
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" \"since\": xx (numeric) height of the first block to which the status applies\n"
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" }\n"
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" }\n"
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"}\n"
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@ -1,4 +1,4 @@
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// Copyright (c) 2014-2015 The Bitcoin Core developers
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// Copyright (c) 2014-2016 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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@ -30,6 +30,7 @@ public:
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bool Condition(const CBlockIndex* pindex, const Consensus::Params& params) const { return (pindex->nVersion & 0x100); }
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ThresholdState GetStateFor(const CBlockIndex* pindexPrev) const { return AbstractThresholdConditionChecker::GetStateFor(pindexPrev, paramsDummy, cache); }
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int GetStateSinceHeightFor(const CBlockIndex* pindexPrev) const { return AbstractThresholdConditionChecker::GetStateSinceHeightFor(pindexPrev, paramsDummy, cache); }
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};
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#define CHECKERS 6
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@ -78,6 +79,16 @@ public:
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return *this;
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}
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VersionBitsTester& TestStateSinceHeight(int height) {
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for (int i = 0; i < CHECKERS; i++) {
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if ((insecure_rand() & ((1 << i) - 1)) == 0) {
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BOOST_CHECK_MESSAGE(checker[i].GetStateSinceHeightFor(vpblock.empty() ? NULL : vpblock.back()) == height, strprintf("Test %i for StateSinceHeight", num));
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}
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}
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num++;
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return *this;
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}
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VersionBitsTester& TestDefined() {
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for (int i = 0; i < CHECKERS; i++) {
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if ((insecure_rand() & ((1 << i) - 1)) == 0) {
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@ -137,53 +148,64 @@ BOOST_AUTO_TEST_CASE(versionbits_test)
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{
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for (int i = 0; i < 64; i++) {
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// DEFINED -> FAILED
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VersionBitsTester().TestDefined()
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.Mine(1, TestTime(1), 0x100).TestDefined()
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.Mine(11, TestTime(11), 0x100).TestDefined()
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.Mine(989, TestTime(989), 0x100).TestDefined()
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.Mine(999, TestTime(20000), 0x100).TestDefined()
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.Mine(1000, TestTime(20000), 0x100).TestFailed()
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.Mine(1999, TestTime(30001), 0x100).TestFailed()
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.Mine(2000, TestTime(30002), 0x100).TestFailed()
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.Mine(2001, TestTime(30003), 0x100).TestFailed()
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.Mine(2999, TestTime(30004), 0x100).TestFailed()
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.Mine(3000, TestTime(30005), 0x100).TestFailed()
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VersionBitsTester().TestDefined().TestStateSinceHeight(0)
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.Mine(1, TestTime(1), 0x100).TestDefined().TestStateSinceHeight(0)
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.Mine(11, TestTime(11), 0x100).TestDefined().TestStateSinceHeight(0)
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.Mine(989, TestTime(989), 0x100).TestDefined().TestStateSinceHeight(0)
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.Mine(999, TestTime(20000), 0x100).TestDefined().TestStateSinceHeight(0)
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.Mine(1000, TestTime(20000), 0x100).TestFailed().TestStateSinceHeight(1000)
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.Mine(1999, TestTime(30001), 0x100).TestFailed().TestStateSinceHeight(1000)
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.Mine(2000, TestTime(30002), 0x100).TestFailed().TestStateSinceHeight(1000)
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.Mine(2001, TestTime(30003), 0x100).TestFailed().TestStateSinceHeight(1000)
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.Mine(2999, TestTime(30004), 0x100).TestFailed().TestStateSinceHeight(1000)
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.Mine(3000, TestTime(30005), 0x100).TestFailed().TestStateSinceHeight(1000)
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// DEFINED -> STARTED -> FAILED
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.Reset().TestDefined()
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.Mine(1, TestTime(1), 0).TestDefined()
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.Mine(1000, TestTime(10000) - 1, 0x100).TestDefined() // One second more and it would be defined
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.Mine(2000, TestTime(10000), 0x100).TestStarted() // So that's what happens the next period
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.Mine(2051, TestTime(10010), 0).TestStarted() // 51 old blocks
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.Mine(2950, TestTime(10020), 0x100).TestStarted() // 899 new blocks
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.Mine(3000, TestTime(20000), 0).TestFailed() // 50 old blocks (so 899 out of the past 1000)
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.Mine(4000, TestTime(20010), 0x100).TestFailed()
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.Reset().TestDefined().TestStateSinceHeight(0)
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.Mine(1, TestTime(1), 0).TestDefined().TestStateSinceHeight(0)
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.Mine(1000, TestTime(10000) - 1, 0x100).TestDefined().TestStateSinceHeight(0) // One second more and it would be defined
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.Mine(2000, TestTime(10000), 0x100).TestStarted().TestStateSinceHeight(2000) // So that's what happens the next period
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.Mine(2051, TestTime(10010), 0).TestStarted().TestStateSinceHeight(2000) // 51 old blocks
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.Mine(2950, TestTime(10020), 0x100).TestStarted().TestStateSinceHeight(2000) // 899 new blocks
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.Mine(3000, TestTime(20000), 0).TestFailed().TestStateSinceHeight(3000) // 50 old blocks (so 899 out of the past 1000)
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.Mine(4000, TestTime(20010), 0x100).TestFailed().TestStateSinceHeight(3000)
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// DEFINED -> STARTED -> FAILED while threshold reached
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.Reset().TestDefined()
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.Mine(1, TestTime(1), 0).TestDefined()
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.Mine(1000, TestTime(10000) - 1, 0x101).TestDefined() // One second more and it would be defined
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.Mine(2000, TestTime(10000), 0x101).TestStarted() // So that's what happens the next period
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.Mine(2999, TestTime(30000), 0x100).TestStarted() // 999 new blocks
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.Mine(3000, TestTime(30000), 0x100).TestFailed() // 1 new block (so 1000 out of the past 1000 are new)
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.Mine(3999, TestTime(30001), 0).TestFailed()
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.Mine(4000, TestTime(30002), 0).TestFailed()
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.Mine(14333, TestTime(30003), 0).TestFailed()
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.Mine(24000, TestTime(40000), 0).TestFailed()
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.Reset().TestDefined().TestStateSinceHeight(0)
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.Mine(1, TestTime(1), 0).TestDefined().TestStateSinceHeight(0)
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.Mine(1000, TestTime(10000) - 1, 0x101).TestDefined().TestStateSinceHeight(0) // One second more and it would be defined
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.Mine(2000, TestTime(10000), 0x101).TestStarted().TestStateSinceHeight(2000) // So that's what happens the next period
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.Mine(2999, TestTime(30000), 0x100).TestStarted().TestStateSinceHeight(2000) // 999 new blocks
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.Mine(3000, TestTime(30000), 0x100).TestFailed().TestStateSinceHeight(3000) // 1 new block (so 1000 out of the past 1000 are new)
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.Mine(3999, TestTime(30001), 0).TestFailed().TestStateSinceHeight(3000)
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.Mine(4000, TestTime(30002), 0).TestFailed().TestStateSinceHeight(3000)
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.Mine(14333, TestTime(30003), 0).TestFailed().TestStateSinceHeight(3000)
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.Mine(24000, TestTime(40000), 0).TestFailed().TestStateSinceHeight(3000)
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// DEFINED -> STARTED -> LOCKEDIN at the last minute -> ACTIVE
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.Reset().TestDefined()
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.Mine(1, TestTime(1), 0).TestDefined()
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.Mine(1000, TestTime(10000) - 1, 0x101).TestDefined() // One second more and it would be defined
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.Mine(2000, TestTime(10000), 0x101).TestStarted() // So that's what happens the next period
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.Mine(2050, TestTime(10010), 0x200).TestStarted() // 50 old blocks
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.Mine(2950, TestTime(10020), 0x100).TestStarted() // 900 new blocks
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.Mine(2999, TestTime(19999), 0x200).TestStarted() // 49 old blocks
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.Mine(3000, TestTime(29999), 0x200).TestLockedIn() // 1 old block (so 900 out of the past 1000)
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.Mine(3999, TestTime(30001), 0).TestLockedIn()
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.Mine(4000, TestTime(30002), 0).TestActive()
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.Mine(14333, TestTime(30003), 0).TestActive()
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.Mine(24000, TestTime(40000), 0).TestActive();
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.Mine(1, TestTime(1), 0).TestDefined().TestStateSinceHeight(0)
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.Mine(1000, TestTime(10000) - 1, 0x101).TestDefined().TestStateSinceHeight(0) // One second more and it would be defined
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.Mine(2000, TestTime(10000), 0x101).TestStarted().TestStateSinceHeight(2000) // So that's what happens the next period
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.Mine(2050, TestTime(10010), 0x200).TestStarted().TestStateSinceHeight(2000) // 50 old blocks
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.Mine(2950, TestTime(10020), 0x100).TestStarted().TestStateSinceHeight(2000) // 900 new blocks
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.Mine(2999, TestTime(19999), 0x200).TestStarted().TestStateSinceHeight(2000) // 49 old blocks
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.Mine(3000, TestTime(29999), 0x200).TestLockedIn().TestStateSinceHeight(3000) // 1 old block (so 900 out of the past 1000)
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.Mine(3999, TestTime(30001), 0).TestLockedIn().TestStateSinceHeight(3000)
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.Mine(4000, TestTime(30002), 0).TestActive().TestStateSinceHeight(4000)
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.Mine(14333, TestTime(30003), 0).TestActive().TestStateSinceHeight(4000)
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.Mine(24000, TestTime(40000), 0).TestActive().TestStateSinceHeight(4000)
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// DEFINED multiple periods -> STARTED multiple periods -> FAILED
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.Reset().TestDefined().TestStateSinceHeight(0)
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.Mine(999, TestTime(999), 0).TestDefined().TestStateSinceHeight(0)
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.Mine(1000, TestTime(1000), 0).TestDefined().TestStateSinceHeight(0)
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.Mine(2000, TestTime(2000), 0).TestDefined().TestStateSinceHeight(0)
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.Mine(3000, TestTime(10000), 0).TestStarted().TestStateSinceHeight(3000)
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.Mine(4000, TestTime(10000), 0).TestStarted().TestStateSinceHeight(3000)
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.Mine(5000, TestTime(10000), 0).TestStarted().TestStateSinceHeight(3000)
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.Mine(6000, TestTime(20000), 0).TestFailed().TestStateSinceHeight(6000)
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.Mine(7000, TestTime(20000), 0x100).TestFailed().TestStateSinceHeight(6000);
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}
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// Sanity checks of version bit deployments
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@ -105,6 +105,36 @@ ThresholdState AbstractThresholdConditionChecker::GetStateFor(const CBlockIndex*
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return state;
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}
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int AbstractThresholdConditionChecker::GetStateSinceHeightFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const
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{
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const ThresholdState initialState = GetStateFor(pindexPrev, params, cache);
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// BIP 9 about state DEFINED: "The genesis block is by definition in this state for each deployment."
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if (initialState == THRESHOLD_DEFINED) {
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return 0;
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}
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const int nPeriod = Period(params);
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// A block's state is always the same as that of the first of its period, so it is computed based on a pindexPrev whose height equals a multiple of nPeriod - 1.
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// To ease understanding of the following height calculation, it helps to remember that
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// right now pindexPrev points to the block prior to the block that we are computing for, thus:
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// if we are computing for the last block of a period, then pindexPrev points to the second to last block of the period, and
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// if we are computing for the first block of a period, then pindexPrev points to the last block of the previous period.
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// The parent of the genesis block is represented by NULL.
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pindexPrev = pindexPrev->GetAncestor(pindexPrev->nHeight - ((pindexPrev->nHeight + 1) % nPeriod));
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const CBlockIndex* previousPeriodParent = pindexPrev->GetAncestor(pindexPrev->nHeight - nPeriod);
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while (previousPeriodParent != NULL && GetStateFor(previousPeriodParent, params, cache) == initialState) {
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pindexPrev = previousPeriodParent;
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previousPeriodParent = pindexPrev->GetAncestor(pindexPrev->nHeight - nPeriod);
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}
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// Adjust the result because right now we point to the parent block.
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return pindexPrev->nHeight + 1;
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}
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namespace
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{
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/**
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@ -137,6 +167,11 @@ ThresholdState VersionBitsState(const CBlockIndex* pindexPrev, const Consensus::
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return VersionBitsConditionChecker(pos).GetStateFor(pindexPrev, params, cache.caches[pos]);
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}
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int VersionBitsStateSinceHeight(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache)
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{
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return VersionBitsConditionChecker(pos).GetStateSinceHeightFor(pindexPrev, params, cache.caches[pos]);
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}
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uint32_t VersionBitsMask(const Consensus::Params& params, Consensus::DeploymentPos pos)
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{
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return VersionBitsConditionChecker(pos).Mask(params);
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@ -51,8 +51,9 @@ protected:
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virtual int Threshold(const Consensus::Params& params) const =0;
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public:
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// Note that the function below takes a pindexPrev as input: they compute information for block B based on its parent.
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// Note that the functions below take a pindexPrev as input: they compute information for block B based on its parent.
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ThresholdState GetStateFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const;
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int GetStateSinceHeightFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const;
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};
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struct VersionBitsCache
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@ -63,6 +64,7 @@ struct VersionBitsCache
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};
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ThresholdState VersionBitsState(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
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int VersionBitsStateSinceHeight(const CBlockIndex* pindexPrev, const Consensus::Params& params, Consensus::DeploymentPos pos, VersionBitsCache& cache);
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uint32_t VersionBitsMask(const Consensus::Params& params, Consensus::DeploymentPos pos);
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#endif
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