Merge pull request #2647 from patricklodder/1.14.5-addl-aux-methods
[rpc] Add createauxblock and submitauxblock back to RPC
This commit is contained in:
commit
85226b80bd
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@ -151,6 +151,7 @@ testScripts = [
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# 'p2p-versionbits-warning.py',
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'preciousblock.py',
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'importprunedfunds.py',
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'createauxblock.py',
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'signmessages.py',
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# 'nulldummy.py',
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'import-rescan.py',
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196
qa/rpc-tests/createauxblock.py
Normal file
196
qa/rpc-tests/createauxblock.py
Normal file
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@ -0,0 +1,196 @@
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#!/usr/bin/env python
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# Copyright (c) 2021 The Dogecoin 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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"""CreateAuxBlock QA test.
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# Tests createauxblock and submitauxblock RPC endpoints
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"""
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from test_framework import scrypt_auxpow as auxpow
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class CreateAuxBlockTest(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.setup_clean_chain = True
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self.num_nodes = 2
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self.is_network_split = False
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def setup_network(self):
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self.nodes = []
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self.nodes.append(start_node(0, self.options.tmpdir, ["-debug", "-txindex"]))
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self.nodes.append(start_node(1, self.options.tmpdir, ["-debug"]))
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connect_nodes_bi(self.nodes, 0, 1)
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self.sync_all()
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def run_test(self):
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# Generate an initial chain
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self.nodes[0].generate(100)
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self.sync_all()
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# Generate a block so that we are not "downloading blocks".
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self.nodes[1].generate(1)
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self.sync_all()
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dummy_p2pkh_addr = "mmMP9oKFdADezYzduwJFcLNmmi8JHUKdx9"
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dummy_p2sh_addr = "2Mwvgpd2H7wDPXx8jWe3Vqiciix6JqSbsyz"
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# Compare basic data of createauxblock to getblocktemplate.
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auxblock = self.nodes[0].createauxblock(dummy_p2pkh_addr)
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blocktemplate = self.nodes[0].getblocktemplate()
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assert_equal(auxblock["coinbasevalue"], blocktemplate["coinbasevalue"])
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assert_equal(auxblock["bits"], blocktemplate["bits"])
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assert_equal(auxblock["height"], blocktemplate["height"])
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assert_equal(auxblock["previousblockhash"], blocktemplate["previousblockhash"])
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# Compare target and take byte order into account.
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target = auxblock["target"]
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reversedTarget = auxpow.reverseHex(target)
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assert_equal(reversedTarget, blocktemplate["target"])
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# Verify data that can be found in another way.
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assert_equal(auxblock["chainid"], 98)
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assert_equal(auxblock["height"], self.nodes[0].getblockcount() + 1)
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assert_equal(auxblock["previousblockhash"], self.nodes[0].getblockhash(auxblock["height"] - 1))
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# Calling again should give the same block.
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auxblock2 = self.nodes[0].createauxblock(dummy_p2pkh_addr)
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assert_equal(auxblock2, auxblock)
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# Calling with an invalid address must fail
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try:
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auxblock2 = self.nodes[0].createauxblock("x")
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raise AssertionError("invalid address accepted")
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except JSONRPCException as exc:
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assert_equal(exc.error["code"], -8)
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# Calling with a different address ...
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dummy_addr2 = self.nodes[0].getnewaddress()
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auxblock3 = self.nodes[0].createauxblock(dummy_addr2)
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# ... must give another block because the coinbase recipient differs ...
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assert auxblock3["hash"] != auxblock["hash"]
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# ... but must have retained the same parameterization otherwise
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assert_equal(auxblock["coinbasevalue"], auxblock3["coinbasevalue"])
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assert_equal(auxblock["bits"], auxblock3["bits"])
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assert_equal(auxblock["height"], auxblock3["height"])
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assert_equal(auxblock["previousblockhash"], auxblock3["previousblockhash"])
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assert_equal(auxblock["chainid"], auxblock3["chainid"])
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assert_equal(auxblock["target"], auxblock3["target"])
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# If we receive a new block, the template cache must be emptied.
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self.sync_all()
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self.nodes[1].generate(1)
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self.sync_all()
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auxblock4 = self.nodes[0].createauxblock(dummy_p2pkh_addr)
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assert auxblock["hash"] != auxblock4["hash"]
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try:
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self.nodes[0].submitauxblock(auxblock["hash"], "x")
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raise AssertionError("invalid block hash accepted")
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except JSONRPCException as exc:
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assert_equal(exc.error["code"], -8)
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# Invalid format for auxpow.
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try:
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self.nodes[0].submitauxblock(auxblock4["hash"], "x")
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raise AssertionError("malformed auxpow accepted")
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except JSONRPCException as exc:
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assert_equal(exc.error["code"], -1)
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# Invalidate the block again, send a transaction and query for the
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# auxblock to solve that contains the transaction.
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self.nodes[0].generate(1)
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addr = self.nodes[1].getnewaddress()
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txid = self.nodes[0].sendtoaddress(addr, 1)
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self.sync_all()
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assert_equal(self.nodes[1].getrawmempool(), [txid])
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auxblock = self.nodes[0].createauxblock(dummy_p2pkh_addr)
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reversedTarget = auxpow.reverseHex(auxblock["target"])
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# Compute invalid auxpow.
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apow = auxpow.computeAuxpowWithChainId(auxblock["hash"], reversedTarget, "98", False)
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res = self.nodes[0].submitauxblock(auxblock["hash"], apow)
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assert not res
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# Compute and submit valid auxpow.
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apow = auxpow.computeAuxpowWithChainId(auxblock["hash"], reversedTarget, "98", True)
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res = self.nodes[0].submitauxblock(auxblock["hash"], apow)
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assert res
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# Make sure that the block is accepted.
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self.sync_all()
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assert_equal(self.nodes[1].getrawmempool(), [])
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height = self.nodes[1].getblockcount()
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assert_equal(height, auxblock["height"])
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assert_equal(self.nodes[1].getblockhash(height), auxblock["hash"])
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# check the mined block and transaction
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self.check_mined_block(auxblock, apow, dummy_p2pkh_addr, Decimal("500000"), txid)
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# Mine to a p2sh address while having multiple cached aux block templates
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auxblock1 = self.nodes[0].createauxblock(dummy_p2pkh_addr)
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auxblock2 = self.nodes[0].createauxblock(dummy_p2sh_addr)
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auxblock3 = self.nodes[0].createauxblock(dummy_addr2)
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reversedTarget = auxpow.reverseHex(auxblock2["target"])
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apow = auxpow.computeAuxpowWithChainId(auxblock2["hash"], reversedTarget, "98", True)
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res = self.nodes[0].submitauxblock(auxblock2["hash"], apow)
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assert res
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self.sync_all()
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# check the mined block
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self.check_mined_block(auxblock2, apow, dummy_p2sh_addr, Decimal("500000"))
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# Solve the first p2pkh template before requesting a new auxblock
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# this succeeds but creates a chaintip fork
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reversedTarget = auxpow.reverseHex(auxblock1["target"])
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apow = auxpow.computeAuxpowWithChainId(auxblock1["hash"], reversedTarget, "98", True)
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res = self.nodes[0].submitauxblock(auxblock1["hash"], apow)
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assert res
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chaintips = self.nodes[0].getchaintips()
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tipsFound = 0;
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for ct in chaintips:
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if ct["hash"] in [ auxblock1["hash"], auxblock2["hash"] ]:
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tipsFound += 1
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assert_equal(tipsFound, 2)
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# Solve the last p2pkh template after requesting a new auxblock - this fails
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self.nodes[0].createauxblock(dummy_p2pkh_addr)
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reversedTarget = auxpow.reverseHex(auxblock3["target"])
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apow = auxpow.computeAuxpowWithChainId(auxblock3["hash"], reversedTarget, "98", True)
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try:
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self.nodes[0].submitauxblock(auxblock3["hash"], apow)
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raise AssertionError("Outdated blockhash accepted")
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except JSONRPCException as exc:
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assert_equal(exc.error["code"], -8)
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def check_mined_block(self, auxblock, apow, addr, min_value, txid=None):
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# Call getblock and verify the auxpow field.
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data = self.nodes[1].getblock(auxblock["hash"])
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assert "auxpow" in data
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auxJson = data["auxpow"]
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assert_equal(auxJson["index"], 0)
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assert_equal(auxJson["parentblock"], apow[-160:])
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# Call getrawtransaction and verify the coinbase tx
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coinbasetx = self.nodes[0].getrawtransaction(data["tx"][0], True)
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assert coinbasetx["vout"][0]["value"] >= min_value
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assert_equal(coinbasetx["vout"][0]["scriptPubKey"]["addresses"][0], addr)
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# Make sure the coinbase contains the block height
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coinbase = coinbasetx["vin"][0]["coinbase"]
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assert_equal("01%02x01" % auxblock["height"], coinbase[0:6])
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# Make sure our transaction got mined, if any
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if not txid is None:
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assert txid in data["tx"]
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if __name__ == "__main__":
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CreateAuxBlockTest().main()
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@ -49,7 +49,6 @@ UniValue GetNetworkHashPS(int lookup, int height) {
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// If lookup is -1, then use blocks since last difficulty change.
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if (lookup <= 0)
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lookup = pb->nHeight % Params().GetConsensus(pb->nHeight).DifficultyAdjustmentInterval() + 1;
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//
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// If lookup is larger than chain, then set it to chain length.
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if (lookup > pb->nHeight)
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@ -969,6 +968,158 @@ UniValue estimatesmartpriority(const JSONRPCRequest& request)
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/* ************************************************************************** */
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/* Merge mining. */
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/**
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* The variables below are used to keep track of created and not yet
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* submitted auxpow blocks. Lock them to be sure even for multiple
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* RPC threads running in parallel.
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*/
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static CCriticalSection cs_auxblockCache;
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static std::map<uint256, CBlock*> mapNewBlock;
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static std::vector<std::unique_ptr<CBlockTemplate>> vNewBlockTemplate;
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void AuxMiningCheck()
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{
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if(!g_connman)
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throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
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if (g_connman->GetNodeCount(CConnman::CONNECTIONS_ALL) == 0 && !Params().MineBlocksOnDemand())
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throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Dogecoin is not connected!");
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if (IsInitialBlockDownload() && !Params().MineBlocksOnDemand())
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throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD,
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"Dogecoin is downloading blocks...");
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/* This should never fail, since the chain is already
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past the point of merge-mining start. Check nevertheless. */
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{
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LOCK(cs_main);
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if (Params().GetConsensus(chainActive.Height() + 1).fAllowLegacyBlocks)
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throw std::runtime_error("getauxblock method is not yet available");
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}
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}
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static UniValue AuxMiningCreateBlock(const CScript& scriptPubKey)
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{
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AuxMiningCheck();
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LOCK(cs_auxblockCache);
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static unsigned nTransactionsUpdatedLast;
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static const CBlockIndex* pindexPrev = nullptr;
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static uint64_t nStart;
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static std::map<CScriptID, CBlock*> curBlocks;
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static unsigned nExtraNonce = 0;
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// Dogecoin: Never mine witness tx
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const bool fMineWitnessTx = false;
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/* Search for cached blocks with given scriptPubKey and assign it to pBlock
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* if we find a match. This allows for creating multiple aux templates with
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* a single dogecoind instance, for example when a pool runs multiple sub-
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* pools with different payout strategies.
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*/
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CBlock* pblock = nullptr;
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CScriptID scriptID (scriptPubKey);
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auto iter = curBlocks.find(scriptID);
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if (iter != curBlocks.end()) pblock = iter->second;
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{
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LOCK(cs_main);
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// Update block
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if (pblock == nullptr || pindexPrev != chainActive.Tip()
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|| (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast
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&& GetTime() - nStart > 60))
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{
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if (pindexPrev != chainActive.Tip())
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{
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// Clear old blocks since they're obsolete now.
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mapNewBlock.clear();
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vNewBlockTemplate.clear();
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curBlocks.clear();
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pblock = nullptr;
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}
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// Create new block with nonce = 0 and extraNonce = 1
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std::unique_ptr<CBlockTemplate> newBlock
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= BlockAssembler(Params()).CreateNewBlock(scriptPubKey, fMineWitnessTx);
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if (!newBlock)
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throw JSONRPCError(RPC_OUT_OF_MEMORY, "out of memory");
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// Update state only when CreateNewBlock succeeded
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nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
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pindexPrev = chainActive.Tip();
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nStart = GetTime();
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// Finalise it by setting the version and building the merkle root
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IncrementExtraNonce(&newBlock->block, pindexPrev, nExtraNonce);
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newBlock->block.SetAuxpowFlag(true);
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// Save
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pblock = &newBlock->block;
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curBlocks[scriptID] = pblock;
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mapNewBlock[pblock->GetHash()] = pblock;
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vNewBlockTemplate.push_back(std::move(newBlock));
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}
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}
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// At this point, pblock is always initialised: If we make it here
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// without creating a new block above, it means that, in particular,
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// pindexPrev == chainActive.Tip(). But for that to happen, we must
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// already have created a pblock in a previous call, as pindexPrev is
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// initialised only when pblock is.
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assert(pblock);
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arith_uint256 target;
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bool fNegative, fOverflow;
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target.SetCompact(pblock->nBits, &fNegative, &fOverflow);
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if (fNegative || fOverflow || target == 0)
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throw std::runtime_error("invalid difficulty bits in block");
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UniValue result(UniValue::VOBJ);
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result.pushKV("hash", pblock->GetHash().GetHex());
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result.pushKV("chainid", pblock->GetChainId());
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result.pushKV("previousblockhash", pblock->hashPrevBlock.GetHex());
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result.pushKV("coinbasevalue", (int64_t)pblock->vtx[0]->vout[0].nValue);
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result.pushKV("bits", strprintf("%08x", pblock->nBits));
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result.pushKV("height", static_cast<int64_t> (pindexPrev->nHeight + 1));
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result.pushKV("target", HexStr(BEGIN(target), END(target)));
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return result;
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}
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static bool AuxMiningSubmitBlock(const std::string& hashHex, const std::string& auxpowHex)
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{
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AuxMiningCheck();
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LOCK(cs_auxblockCache);
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uint256 hash;
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hash.SetHex(hashHex);
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const std::map<uint256, CBlock*>::iterator mit = mapNewBlock.find(hash);
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if (mit == mapNewBlock.end())
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throw JSONRPCError(RPC_INVALID_PARAMETER, "block hash unknown");
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CBlock& block = *mit->second;
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const std::vector<unsigned char> vchAuxPow = ParseHex(auxpowHex);
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CDataStream ss(vchAuxPow, SER_GETHASH, PROTOCOL_VERSION);
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CAuxPow pow;
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ss >> pow;
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block.SetAuxpow(new CAuxPow(pow));
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assert(block.GetHash() == hash);
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submitblock_StateCatcher sc(block.GetHash());
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RegisterValidationInterface(&sc);
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std::shared_ptr<const CBlock> shared_block
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= std::make_shared<const CBlock>(block);
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bool fAccepted = ProcessNewBlock(Params(), shared_block, true, nullptr);
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UnregisterValidationInterface(&sc);
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return fAccepted;
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}
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UniValue getauxblockbip22(const JSONRPCRequest& request)
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{
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if (request.fHelp
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|
@ -1011,31 +1162,8 @@ UniValue getauxblockbip22(const JSONRPCRequest& request)
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if (!coinbaseScript->reserveScript.size())
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throw JSONRPCError(RPC_INTERNAL_ERROR, "No coinbase script available (mining requires a wallet)");
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if(!g_connman)
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throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
|
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|
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if (g_connman->GetNodeCount(CConnman::CONNECTIONS_ALL) == 0 && !Params().MineBlocksOnDemand())
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throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Dogecoin is not connected!");
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if (IsInitialBlockDownload() && !Params().MineBlocksOnDemand())
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throw JSONRPCError(RPC_CLIENT_IN_INITIAL_DOWNLOAD,
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"Dogecoin is downloading blocks...");
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/* This should never fail, since the chain is already
|
||||
past the point of merge-mining start. Check nevertheless. */
|
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{
|
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LOCK(cs_main);
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if (Params().GetConsensus(chainActive.Height() + 1).fAllowLegacyBlocks)
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throw std::runtime_error("getauxblock method is not yet available");
|
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}
|
||||
|
||||
/* The variables below are used to keep track of created and not yet
|
||||
submitted auxpow blocks. Lock them to be sure even for multiple
|
||||
RPC threads running in parallel. */
|
||||
static CCriticalSection cs_auxblockCache;
|
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AuxMiningCheck();
|
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LOCK(cs_auxblockCache);
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static std::map<uint256, CBlock*> mapNewBlock;
|
||||
static std::vector<std::unique_ptr<CBlockTemplate>> vNewBlockTemplate;
|
||||
|
||||
/* Create a new block? */
|
||||
if (request.params.size() == 0)
|
||||
|
@ -1050,38 +1178,38 @@ UniValue getauxblockbip22(const JSONRPCRequest& request)
|
|||
// Dogecoin: Never mine witness tx
|
||||
const bool fMineWitnessTx = false;
|
||||
{
|
||||
LOCK(cs_main);
|
||||
if (pindexPrev != chainActive.Tip()
|
||||
|| (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast
|
||||
&& GetTime() - nStart > 60))
|
||||
{
|
||||
if (pindexPrev != chainActive.Tip())
|
||||
LOCK(cs_main);
|
||||
if (pindexPrev != chainActive.Tip()
|
||||
|| (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast
|
||||
&& GetTime() - nStart > 60))
|
||||
{
|
||||
// Clear old blocks since they're obsolete now.
|
||||
mapNewBlock.clear();
|
||||
vNewBlockTemplate.clear();
|
||||
pblock = nullptr;
|
||||
if (pindexPrev != chainActive.Tip())
|
||||
{
|
||||
// Clear old blocks since they're obsolete now.
|
||||
mapNewBlock.clear();
|
||||
vNewBlockTemplate.clear();
|
||||
pblock = nullptr;
|
||||
}
|
||||
|
||||
// Create new block with nonce = 0 and extraNonce = 1
|
||||
std::unique_ptr<CBlockTemplate> newBlock(BlockAssembler(Params()).CreateNewBlock(coinbaseScript->reserveScript, fMineWitnessTx));
|
||||
if (!newBlock)
|
||||
throw JSONRPCError(RPC_OUT_OF_MEMORY, "out of memory");
|
||||
|
||||
// Update state only when CreateNewBlock succeeded
|
||||
nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
|
||||
pindexPrev = chainActive.Tip();
|
||||
nStart = GetTime();
|
||||
|
||||
// Finalise it by setting the version and building the merkle root
|
||||
IncrementExtraNonce(&newBlock->block, pindexPrev, nExtraNonce);
|
||||
newBlock->block.SetAuxpowFlag(true);
|
||||
|
||||
// Save
|
||||
pblock = &newBlock->block;
|
||||
mapNewBlock[pblock->GetHash()] = pblock;
|
||||
vNewBlockTemplate.push_back(std::move(newBlock));
|
||||
}
|
||||
|
||||
// Create new block with nonce = 0 and extraNonce = 1
|
||||
std::unique_ptr<CBlockTemplate> newBlock(BlockAssembler(Params()).CreateNewBlock(coinbaseScript->reserveScript, fMineWitnessTx));
|
||||
if (!newBlock)
|
||||
throw JSONRPCError(RPC_OUT_OF_MEMORY, "out of memory");
|
||||
|
||||
// Update state only when CreateNewBlock succeeded
|
||||
nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
|
||||
pindexPrev = chainActive.Tip();
|
||||
nStart = GetTime();
|
||||
|
||||
// Finalise it by setting the version and building the merkle root
|
||||
IncrementExtraNonce(&newBlock->block, pindexPrev, nExtraNonce);
|
||||
newBlock->block.SetAuxpowFlag(true);
|
||||
|
||||
// Save
|
||||
pblock = &newBlock->block;
|
||||
mapNewBlock[pblock->GetHash()] = pblock;
|
||||
vNewBlockTemplate.push_back(std::move(newBlock));
|
||||
}
|
||||
}
|
||||
|
||||
arith_uint256 target;
|
||||
|
@ -1135,6 +1263,59 @@ UniValue getauxblockbip22(const JSONRPCRequest& request)
|
|||
return BIP22ValidationResult(sc.state);
|
||||
}
|
||||
|
||||
UniValue createauxblock(const JSONRPCRequest& request)
|
||||
{
|
||||
if (request.fHelp || request.params.size() != 1)
|
||||
throw std::runtime_error(
|
||||
"createauxblock <address>\n"
|
||||
"\ncreate a new block and return information required to merge-mine it.\n"
|
||||
"\nArguments:\n"
|
||||
"1. address (string, required) specify coinbase transaction payout address\n"
|
||||
"\nResult:\n"
|
||||
"{\n"
|
||||
" \"hash\" (string) hash of the created block\n"
|
||||
" \"chainid\" (numeric) chain ID for this block\n"
|
||||
" \"previousblockhash\" (string) hash of the previous block\n"
|
||||
" \"coinbasevalue\" (numeric) value of the block's coinbase\n"
|
||||
" \"bits\" (string) compressed target of the block\n"
|
||||
" \"height\" (numeric) height of the block\n"
|
||||
" \"target\" (string) target in reversed byte order\n"
|
||||
"}\n"
|
||||
"\nExamples:\n"
|
||||
+ HelpExampleCli("createauxblock", "\"address\"")
|
||||
+ HelpExampleRpc("createauxblock", "\"address\"")
|
||||
);
|
||||
|
||||
// Check coinbase payout address
|
||||
CBitcoinAddress coinbaseAddress(request.params[0].get_str());
|
||||
|
||||
if (!coinbaseAddress.IsValid())
|
||||
throw JSONRPCError(RPC_INVALID_PARAMETER,"Invalid coinbase payout address");
|
||||
|
||||
const CScript scriptPubKey = GetScriptForDestination(coinbaseAddress.Get());
|
||||
return AuxMiningCreateBlock(scriptPubKey);
|
||||
}
|
||||
|
||||
UniValue submitauxblock(const JSONRPCRequest& request)
|
||||
{
|
||||
if (request.fHelp || request.params.size() != 2)
|
||||
throw std::runtime_error(
|
||||
"submitauxblock <hash> <auxpow>\n"
|
||||
"\nsubmit a solved auxpow for a previously block created by 'createauxblock'.\n"
|
||||
"\nArguments:\n"
|
||||
"1. hash (string, required) hash of the block to submit\n"
|
||||
"2. auxpow (string, required) serialised auxpow found\n"
|
||||
"\nResult:\n"
|
||||
"xxxxx (boolean) whether the submitted block was correct\n"
|
||||
"\nExamples:\n"
|
||||
+ HelpExampleCli("submitauxblock", "\"hash\" \"serialised auxpow\"")
|
||||
+ HelpExampleRpc("submitauxblock", "\"hash\" \"serialised auxpow\"")
|
||||
);
|
||||
|
||||
return AuxMiningSubmitBlock(request.params[0].get_str(),
|
||||
request.params[1].get_str());
|
||||
}
|
||||
|
||||
UniValue getauxblock(const JSONRPCRequest& request)
|
||||
{
|
||||
const UniValue response = getauxblockbip22(request);
|
||||
|
@ -1157,7 +1338,10 @@ static const CRPCCommand commands[] =
|
|||
{ "mining", "prioritisetransaction", &prioritisetransaction, true, {"txid","priority_delta","fee_delta"} },
|
||||
{ "mining", "getblocktemplate", &getblocktemplate, true, {"template_request"} },
|
||||
{ "mining", "submitblock", &submitblock, true, {"hexdata","parameters"} },
|
||||
|
||||
{ "mining", "getauxblock", &getauxblock, true, {"hash", "auxpow"} },
|
||||
{ "mining", "createauxblock", &createauxblock, true, {"address"} },
|
||||
{ "mining", "submitauxblock", &submitauxblock, true, {"hash", "auxpow"} },
|
||||
|
||||
{ "generating", "generate", &generate, true, {"nblocks","maxtries","auxpow"} },
|
||||
{ "generating", "generatetoaddress", &generatetoaddress, true, {"nblocks","address","maxtries","auxpow"} },
|
||||
|
|
Loading…
Reference in a new issue