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llmq: Some refactoring in CQuorumManger (#3935)

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* llmq: Refactor CQuorumManager::{BuildQuorumFromCommitment, GetQuorum}

Construct and cache new quorums inside BuildQuorumFromCommitment

* llmq: Make all methods of CQuorumManager const
This commit is contained in:
dustinface 2021-01-18 19:54:50 +01:00 committed by GitHub
parent bdbadc1809
commit ddb57ce2a3
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 30 additions and 35 deletions
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45
src/llmq/quorums.cpp
View File

@ -161,7 +161,7 @@ CQuorumManager::CQuorumManager(CEvoDB& _evoDb, CBLSWorker& _blsWorker, CDKGSessi
{
}
void CQuorumManager::UpdatedBlockTip(const CBlockIndex* pindexNew, bool fInitialDownload)
void CQuorumManager::UpdatedBlockTip(const CBlockIndex* pindexNew, bool fInitialDownload) const
{
if (!masternodeSync.IsBlockchainSynced()) {
return;
@ -172,7 +172,7 @@ void CQuorumManager::UpdatedBlockTip(const CBlockIndex* pindexNew, bool fInitial
}
}
void CQuorumManager::EnsureQuorumConnections(Consensus::LLMQType llmqType, const CBlockIndex* pindexNew)
void CQuorumManager::EnsureQuorumConnections(Consensus::LLMQType llmqType, const CBlockIndex* pindexNew) const
{
const auto& params = Params().GetConsensus().llmqs.at(llmqType);
@ -203,11 +203,20 @@ void CQuorumManager::EnsureQuorumConnections(Consensus::LLMQType llmqType, const
}
}
bool CQuorumManager::BuildQuorumFromCommitment(const CFinalCommitment& qc, const CBlockIndex* pindexQuorum, const uint256& minedBlockHash, std::shared_ptr<CQuorum>& quorum) const
CQuorumPtr CQuorumManager::BuildQuorumFromCommitment(const Consensus::LLMQType llmqType, const CBlockIndex* pindexQuorum) const
{
AssertLockHeld(quorumsCacheCs);
assert(pindexQuorum);
CFinalCommitment qc;
const uint256& quorumHash{pindexQuorum->GetBlockHash()};
uint256 minedBlockHash;
if (!quorumBlockProcessor->GetMinedCommitment(llmqType, quorumHash, qc, minedBlockHash)) {
return nullptr;
}
assert(qc.quorumHash == pindexQuorum->GetBlockHash());
auto quorum = std::make_shared<CQuorum>(llmq::GetLLMQParams(llmqType), blsWorker);
auto members = CLLMQUtils::GetAllQuorumMembers((Consensus::LLMQType)qc.llmqType, pindexQuorum);
quorum->Init(qc, pindexQuorum, minedBlockHash, members);
@ -231,7 +240,9 @@ bool CQuorumManager::BuildQuorumFromCommitment(const CFinalCommitment& qc, const
CQuorum::StartCachePopulatorThread(quorum);
}
return true;
quorumsCache.emplace(std::make_pair(llmqType, quorumHash), quorum);
return quorum;
}
bool CQuorumManager::BuildQuorumContributions(const CFinalCommitment& fqc, std::shared_ptr<CQuorum>& quorum) const
@ -275,7 +286,7 @@ bool CQuorumManager::HasQuorum(Consensus::LLMQType llmqType, const uint256& quor
return quorumBlockProcessor->HasMinedCommitment(llmqType, quorumHash);
}
std::vector<CQuorumCPtr> CQuorumManager::ScanQuorums(Consensus::LLMQType llmqType, size_t maxCount)
std::vector<CQuorumCPtr> CQuorumManager::ScanQuorums(Consensus::LLMQType llmqType, size_t maxCount) const
{
const CBlockIndex* pindex;
{
@ -285,7 +296,7 @@ std::vector<CQuorumCPtr> CQuorumManager::ScanQuorums(Consensus::LLMQType llmqTyp
return ScanQuorums(llmqType, pindex, maxCount);
}
std::vector<CQuorumCPtr> CQuorumManager::ScanQuorums(Consensus::LLMQType llmqType, const CBlockIndex* pindexStart, size_t maxCount)
std::vector<CQuorumCPtr> CQuorumManager::ScanQuorums(Consensus::LLMQType llmqType, const CBlockIndex* pindexStart, size_t maxCount) const
{
auto& params = Params().GetConsensus().llmqs.at(llmqType);
@ -333,7 +344,7 @@ std::vector<CQuorumCPtr> CQuorumManager::ScanQuorums(Consensus::LLMQType llmqTyp
return result;
}
CQuorumCPtr CQuorumManager::GetQuorum(Consensus::LLMQType llmqType, const uint256& quorumHash)
CQuorumCPtr CQuorumManager::GetQuorum(Consensus::LLMQType llmqType, const uint256& quorumHash) const
{
CBlockIndex* pindexQuorum;
{
@ -348,7 +359,7 @@ CQuorumCPtr CQuorumManager::GetQuorum(Consensus::LLMQType llmqType, const uint25
return GetQuorum(llmqType, pindexQuorum);
}
CQuorumCPtr CQuorumManager::GetQuorum(Consensus::LLMQType llmqType, const CBlockIndex* pindexQuorum)
CQuorumCPtr CQuorumManager::GetQuorum(Consensus::LLMQType llmqType, const CBlockIndex* pindexQuorum) const
{
assert(pindexQuorum);
@ -367,23 +378,7 @@ CQuorumCPtr CQuorumManager::GetQuorum(Consensus::LLMQType llmqType, const CBlock
return it->second;
}
CFinalCommitment qc;
uint256 minedBlockHash;
if (!quorumBlockProcessor->GetMinedCommitment(llmqType, quorumHash, qc, minedBlockHash)) {
return nullptr;
}
auto& params = Params().GetConsensus().llmqs.at(llmqType);
auto quorum = std::make_shared<CQuorum>(params, blsWorker);
if (!BuildQuorumFromCommitment(qc, pindexQuorum, minedBlockHash, quorum)) {
return nullptr;
}
quorumsCache.emplace(std::make_pair(llmqType, quorumHash), quorum);
return quorum;
return BuildQuorumFromCommitment(llmqType, pindexQuorum);
}
} // namespace llmq

20
src/llmq/quorums.h
View File

@ -85,32 +85,32 @@ private:
CBLSWorker& blsWorker;
CDKGSessionManager& dkgManager;
CCriticalSection quorumsCacheCs;
std::map<std::pair<Consensus::LLMQType, uint256>, CQuorumPtr> quorumsCache;
unordered_lru_cache<std::pair<Consensus::LLMQType, uint256>, std::vector<CQuorumCPtr>, StaticSaltedHasher, 32> scanQuorumsCache;
mutable CCriticalSection quorumsCacheCs;
mutable std::map<std::pair<Consensus::LLMQType, uint256>, CQuorumPtr> quorumsCache;
mutable unordered_lru_cache<std::pair<Consensus::LLMQType, uint256>, std::vector<CQuorumCPtr>, StaticSaltedHasher, 32> scanQuorumsCache;
public:
CQuorumManager(CEvoDB& _evoDb, CBLSWorker& _blsWorker, CDKGSessionManager& _dkgManager);
void UpdatedBlockTip(const CBlockIndex *pindexNew, bool fInitialDownload);
void UpdatedBlockTip(const CBlockIndex *pindexNew, bool fInitialDownload) const;
static bool HasQuorum(Consensus::LLMQType llmqType, const uint256& quorumHash);
// all these methods will lock cs_main for a short period of time
CQuorumCPtr GetQuorum(Consensus::LLMQType llmqType, const uint256& quorumHash);
std::vector<CQuorumCPtr> ScanQuorums(Consensus::LLMQType llmqType, size_t maxCount);
CQuorumCPtr GetQuorum(Consensus::LLMQType llmqType, const uint256& quorumHash) const;
std::vector<CQuorumCPtr> ScanQuorums(Consensus::LLMQType llmqType, size_t maxCount) const;
// this one is cs_main-free
std::vector<CQuorumCPtr> ScanQuorums(Consensus::LLMQType llmqType, const CBlockIndex* pindexStart, size_t maxCount);
std::vector<CQuorumCPtr> ScanQuorums(Consensus::LLMQType llmqType, const CBlockIndex* pindexStart, size_t maxCount) const;
private:
// all private methods here are cs_main-free
void EnsureQuorumConnections(Consensus::LLMQType llmqType, const CBlockIndex *pindexNew);
void EnsureQuorumConnections(Consensus::LLMQType llmqType, const CBlockIndex *pindexNew) const;
bool BuildQuorumFromCommitment(const CFinalCommitment& qc, const CBlockIndex* pindexQuorum, const uint256& minedBlockHash, std::shared_ptr<CQuorum>& quorum) const;
CQuorumPtr BuildQuorumFromCommitment(Consensus::LLMQType llmqType, const CBlockIndex* pindexQuorum) const;
bool BuildQuorumContributions(const CFinalCommitment& fqc, std::shared_ptr<CQuorum>& quorum) const;
CQuorumCPtr GetQuorum(Consensus::LLMQType llmqType, const CBlockIndex* pindex);
CQuorumCPtr GetQuorum(Consensus::LLMQType llmqType, const CBlockIndex* pindex) const;
};
extern CQuorumManager* quorumManager;