diff options
author | Suhas Daftuar <sdaftuar@gmail.com> | 2017-03-08 15:56:59 -0500 |
---|---|---|
committer | Suhas Daftuar <sdaftuar@gmail.com> | 2017-03-16 10:43:54 -0400 |
commit | 569596cc5148ef868350a9720013d38faf3e34ce (patch) | |
tree | 907377b3adb5cb56ae99a44c0ac425167a970bc4 /src | |
parent | 43a987c1cbcd04b9c59052606c3c31c56abc826e (diff) | |
download | bitcoin-569596cc5148ef868350a9720013d38faf3e34ce.tar.xz |
Don't require segwit in getblocktemplate for segwit signalling or mining
Segwit's version bit will be signalled for all invocations of CreateNewBlock,
and not specifying segwit only will cause CreateNewBlock to skip transactions
with witness from being selected.
Github-Pull: #9955
Rebased-From: abe7b3d3abe10e3554b770f40824174b3b217490
Diffstat (limited to 'src')
-rw-r--r-- | src/miner.cpp | 4 | ||||
-rw-r--r-- | src/miner.h | 2 | ||||
-rw-r--r-- | src/rpc/mining.cpp | 18 | ||||
-rw-r--r-- | src/versionbits.cpp | 2 |
4 files changed, 18 insertions, 8 deletions
diff --git a/src/miner.cpp b/src/miner.cpp index d01edd93b5..7b3d94d0e4 100644 --- a/src/miner.cpp +++ b/src/miner.cpp @@ -127,7 +127,7 @@ void BlockAssembler::resetBlock() blockFinished = false; } -std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn) +std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& scriptPubKeyIn, bool fMineWitnessTx) { resetBlock(); @@ -165,7 +165,7 @@ std::unique_ptr<CBlockTemplate> BlockAssembler::CreateNewBlock(const CScript& sc // -promiscuousmempoolflags is used. // TODO: replace this with a call to main to assess validity of a mempool // transaction (which in most cases can be a no-op). - fIncludeWitness = IsWitnessEnabled(pindexPrev, chainparams.GetConsensus()); + fIncludeWitness = IsWitnessEnabled(pindexPrev, chainparams.GetConsensus()) && fMineWitnessTx; addPriorityTxs(); addPackageTxs(); diff --git a/src/miner.h b/src/miner.h index 3ba92b16b8..29013c3bcc 100644 --- a/src/miner.h +++ b/src/miner.h @@ -165,7 +165,7 @@ private: public: BlockAssembler(const CChainParams& chainparams); /** Construct a new block template with coinbase to scriptPubKeyIn */ - std::unique_ptr<CBlockTemplate> CreateNewBlock(const CScript& scriptPubKeyIn); + std::unique_ptr<CBlockTemplate> CreateNewBlock(const CScript& scriptPubKeyIn, bool fMineWitnessTx=true); private: // utility functions diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp index 77cd282a3d..38d7b1eb1e 100644 --- a/src/rpc/mining.cpp +++ b/src/rpc/mining.cpp @@ -519,12 +519,22 @@ UniValue getblocktemplate(const JSONRPCRequest& request) // TODO: Maybe recheck connections/IBD and (if something wrong) send an expires-immediately template to stop miners? } + const struct BIP9DeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT]; + // If the caller is indicating segwit support, then allow CreateNewBlock() + // to select witness transactions, after segwit activates (otherwise + // don't). + bool fSupportsSegwit = setClientRules.find(segwit_info.name) != setClientRules.end(); + // Update block static CBlockIndex* pindexPrev; static int64_t nStart; static std::unique_ptr<CBlockTemplate> pblocktemplate; + // Cache whether the last invocation was with segwit support, to avoid returning + // a segwit-block to a non-segwit caller. + static bool fLastTemplateSupportsSegwit = true; if (pindexPrev != chainActive.Tip() || - (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5)) + (mempool.GetTransactionsUpdated() != nTransactionsUpdatedLast && GetTime() - nStart > 5) || + fLastTemplateSupportsSegwit != fSupportsSegwit) { // Clear pindexPrev so future calls make a new block, despite any failures from here on pindexPrev = nullptr; @@ -533,10 +543,11 @@ UniValue getblocktemplate(const JSONRPCRequest& request) nTransactionsUpdatedLast = mempool.GetTransactionsUpdated(); CBlockIndex* pindexPrevNew = chainActive.Tip(); nStart = GetTime(); + fLastTemplateSupportsSegwit = fSupportsSegwit; // Create new block CScript scriptDummy = CScript() << OP_TRUE; - pblocktemplate = BlockAssembler(Params()).CreateNewBlock(scriptDummy); + pblocktemplate = BlockAssembler(Params()).CreateNewBlock(scriptDummy, fSupportsSegwit); if (!pblocktemplate) throw JSONRPCError(RPC_OUT_OF_MEMORY, "Out of memory"); @@ -686,8 +697,7 @@ UniValue getblocktemplate(const JSONRPCRequest& request) result.push_back(Pair("bits", strprintf("%08x", pblock->nBits))); result.push_back(Pair("height", (int64_t)(pindexPrev->nHeight+1))); - const struct BIP9DeploymentInfo& segwit_info = VersionBitsDeploymentInfo[Consensus::DEPLOYMENT_SEGWIT]; - if (!pblocktemplate->vchCoinbaseCommitment.empty() && setClientRules.find(segwit_info.name) != setClientRules.end()) { + if (!pblocktemplate->vchCoinbaseCommitment.empty() && fSupportsSegwit) { result.push_back(Pair("default_witness_commitment", HexStr(pblocktemplate->vchCoinbaseCommitment.begin(), pblocktemplate->vchCoinbaseCommitment.end()))); } diff --git a/src/versionbits.cpp b/src/versionbits.cpp index d73f340510..8a7cce7485 100644 --- a/src/versionbits.cpp +++ b/src/versionbits.cpp @@ -17,7 +17,7 @@ const struct BIP9DeploymentInfo VersionBitsDeploymentInfo[Consensus::MAX_VERSION }, { /*.name =*/ "segwit", - /*.gbt_force =*/ false, + /*.gbt_force =*/ true, } }; |