diff options
| -rw-r--r-- | src/consensus/params.h | 1 | ||||
| -rw-r--r-- | src/main.cpp | 2 | ||||
| -rw-r--r-- | src/main.h | 2 | ||||
| -rw-r--r-- | src/rpc/mining.cpp | 50 | ||||
| -rw-r--r-- | src/versionbits.cpp | 11 | ||||
| -rw-r--r-- | src/versionbits.h | 7 |
6 files changed, 70 insertions, 3 deletions
diff --git a/src/consensus/params.h b/src/consensus/params.h index 4f3480b89b..6c4cc49479 100644 --- a/src/consensus/params.h +++ b/src/consensus/params.h @@ -16,6 +16,7 @@ enum DeploymentPos { DEPLOYMENT_TESTDUMMY, DEPLOYMENT_CSV, // Deployment of BIP68, BIP112, and BIP113. + // NOTE: Also add new deployments to VersionBitsDeploymentInfo in versionbits.cpp MAX_VERSION_BITS_DEPLOYMENTS }; diff --git a/src/main.cpp b/src/main.cpp index f74cb30574..623d77985c 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -2122,7 +2122,7 @@ void PartitionCheck(bool (*initialDownloadCheck)(), CCriticalSection& cs, const } // Protected by cs_main -static VersionBitsCache versionbitscache; +VersionBitsCache versionbitscache; int32_t ComputeBlockVersion(const CBlockIndex* pindexPrev, const Consensus::Params& params) { diff --git a/src/main.h b/src/main.h index 6936b5379a..404a787e4d 100644 --- a/src/main.h +++ b/src/main.h @@ -551,6 +551,8 @@ extern CBlockTreeDB *pblocktree; */ int GetSpendHeight(const CCoinsViewCache& inputs); +extern VersionBitsCache versionbitscache; + /** * Determine what nVersion a new block should use. */ diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp index c33082fca0..277696fe0b 100644 --- a/src/rpc/mining.cpp +++ b/src/rpc/mining.cpp @@ -7,6 +7,7 @@ #include "chain.h" #include "chainparams.h" #include "consensus/consensus.h" +#include "consensus/params.h" #include "consensus/validation.h" #include "core_io.h" #include "init.h" @@ -260,6 +261,13 @@ static UniValue BIP22ValidationResult(const CValidationState& state) return "valid?"; } +std::string gbt_vb_name(const Consensus::DeploymentPos pos) { + const struct BIP9DeploymentInfo& vbinfo = VersionBitsDeploymentInfo[pos]; + std::string s = vbinfo.name; + s.insert(s.begin(), '!'); + return s; +} + UniValue getblocktemplate(const UniValue& params, bool fHelp) { if (fHelp || params.size() > 1) @@ -267,7 +275,9 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) "getblocktemplate ( \"jsonrequestobject\" )\n" "\nIf the request parameters include a 'mode' key, that is used to explicitly select between the default 'template' request or a 'proposal'.\n" "It returns data needed to construct a block to work on.\n" - "See https://en.bitcoin.it/wiki/BIP_0022 for full specification.\n" + "For full specification, see BIPs 22 and 9:\n" + " https://github.com/bitcoin/bips/blob/master/bip-0022.mediawiki\n" + " https://github.com/bitcoin/bips/blob/master/bip-0009.mediawiki#getblocktemplate_changes\n" "\nArguments:\n" "1. \"jsonrequestobject\" (string, optional) A json object in the following spec\n" @@ -283,6 +293,12 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) "\nResult:\n" "{\n" " \"version\" : n, (numeric) The block version\n" + " \"rules\" : [ \"rulename\", ... ], (array of strings) specific block rules that are to be enforced\n" + " \"vbavailable\" : { (json object) set of pending, supported versionbit (BIP 9) softfork deployments\n" + " \"rulename\" : bitnumber (numeric) identifies the bit number as indicating acceptance and readiness for the named softfork rule\n" + " ,...\n" + " },\n" + " \"vbrequired\" : n, (numeric) bit mask of versionbits the server requires set in submissions\n" " \"previousblockhash\" : \"xxxx\", (string) The hash of current highest block\n" " \"transactions\" : [ (array) contents of non-coinbase transactions that should be included in the next block\n" " {\n" @@ -458,9 +474,10 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) pindexPrev = pindexPrevNew; } CBlock* pblock = &pblocktemplate->block; // pointer for convenience + const Consensus::Params& consensusParams = Params().GetConsensus(); // Update nTime - UpdateTime(pblock, Params().GetConsensus(), pindexPrev); + UpdateTime(pblock, consensusParams, pindexPrev); pblock->nNonce = 0; UniValue aCaps(UniValue::VARR); aCaps.push_back("proposal"); @@ -511,7 +528,36 @@ UniValue getblocktemplate(const UniValue& params, bool fHelp) UniValue result(UniValue::VOBJ); result.push_back(Pair("capabilities", aCaps)); + + UniValue aRules(UniValue::VARR); + UniValue vbavailable(UniValue::VOBJ); + for (int i = 0; i < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++i) { + Consensus::DeploymentPos pos = Consensus::DeploymentPos(i); + ThresholdState state = VersionBitsState(pindexPrev, consensusParams, pos, versionbitscache); + switch (state) { + case THRESHOLD_DEFINED: + case THRESHOLD_FAILED: + // Not exposed to GBT at all + break; + case THRESHOLD_LOCKED_IN: + // Ensure bit is set in block version + pblock->nVersion |= VersionBitsMask(consensusParams, pos); + // FALL THROUGH to get vbavailable set... + case THRESHOLD_STARTED: + // Add to vbavailable (and it's presumably in version already) + vbavailable.push_back(Pair(gbt_vb_name(pos), consensusParams.vDeployments[pos].bit)); + break; + case THRESHOLD_ACTIVE: + // Add to rules only + aRules.push_back(gbt_vb_name(pos)); + break; + } + } result.push_back(Pair("version", pblock->nVersion)); + result.push_back(Pair("rules", aRules)); + result.push_back(Pair("vbavailable", vbavailable)); + result.push_back(Pair("vbrequired", int(0))); + result.push_back(Pair("previousblockhash", pblock->hashPrevBlock.GetHex())); result.push_back(Pair("transactions", transactions)); result.push_back(Pair("coinbaseaux", aux)); diff --git a/src/versionbits.cpp b/src/versionbits.cpp index fbb60c0fc5..041ca2adbc 100644 --- a/src/versionbits.cpp +++ b/src/versionbits.cpp @@ -4,6 +4,17 @@ #include "versionbits.h" +#include "consensus/params.h" + +const struct BIP9DeploymentInfo VersionBitsDeploymentInfo[Consensus::MAX_VERSION_BITS_DEPLOYMENTS] = { + { + /*.name =*/ "testdummy", + }, + { + /*.name =*/ "csv", + } +}; + ThresholdState AbstractThresholdConditionChecker::GetStateFor(const CBlockIndex* pindexPrev, const Consensus::Params& params, ThresholdConditionCache& cache) const { int nPeriod = Period(params); diff --git a/src/versionbits.h b/src/versionbits.h index 04f4738272..d805942028 100644 --- a/src/versionbits.h +++ b/src/versionbits.h @@ -30,6 +30,13 @@ enum ThresholdState { // will either be NULL or a block with (height + 1) % Period() == 0. typedef std::map<const CBlockIndex*, ThresholdState> ThresholdConditionCache; +struct BIP9DeploymentInfo { + /** Deployment name */ + const char *name; +}; + +extern const struct BIP9DeploymentInfo VersionBitsDeploymentInfo[]; + /** * Abstract class that implements BIP9-style threshold logic, and caches results. */ |