dash/src/llmq/quorums_dkgsessionmgr.h
2019-01-09 12:16:12 +01:00

77 lines
2.9 KiB
C++

// Copyright (c) 2018 The Dash Core developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef DASH_QUORUMS_DKGSESSIONMGR_H
#define DASH_QUORUMS_DKGSESSIONMGR_H
#include "llmq/quorums_dkgsessionhandler.h"
#include "validation.h"
#include "ctpl.h"
class UniValue;
namespace llmq
{
class CDKGSessionManager
{
static const int64_t MAX_CONTRIBUTION_CACHE_TIME = 60 * 1000;
private:
CEvoDB& evoDb;
CBLSWorker& blsWorker;
ctpl::thread_pool messageHandlerPool;
std::map<Consensus::LLMQType, CDKGSessionHandler> dkgSessionHandlers;
CCriticalSection contributionsCacheCs;
struct ContributionsCacheKey {
Consensus::LLMQType llmqType;
uint256 quorumHash;
uint256 proTxHash;
bool operator<(const ContributionsCacheKey& r) const
{
if (llmqType != r.llmqType) return llmqType < r.llmqType;
if (quorumHash != r.quorumHash) return quorumHash < r.quorumHash;
return proTxHash < r.proTxHash;
}
};
struct ContributionsCacheEntry {
int64_t entryTime;
BLSVerificationVectorPtr vvec;
CBLSSecretKey skContribution;
};
std::map<ContributionsCacheKey, ContributionsCacheEntry> contributionsCache;
public:
CDKGSessionManager(CEvoDB& _evoDb, CBLSWorker& _blsWorker);
~CDKGSessionManager();
void UpdatedBlockTip(const CBlockIndex *pindexNew, const CBlockIndex *pindexFork, bool fInitialDownload);
void ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, CConnman& connman);
bool AlreadyHave(const CInv& inv) const;
bool GetContribution(const uint256& hash, CDKGContribution& ret) const;
bool GetComplaint(const uint256& hash, CDKGComplaint& ret) const;
bool GetJustification(const uint256& hash, CDKGJustification& ret) const;
bool GetPrematureCommitment(const uint256& hash, CDKGPrematureCommitment& ret) const;
// Verified contributions are written while in the DKG
void WriteVerifiedVvecContribution(Consensus::LLMQType llmqType, const uint256& quorumHash, const uint256& proTxHash, const BLSVerificationVectorPtr& vvec);
void WriteVerifiedSkContribution(Consensus::LLMQType llmqType, const uint256& quorumHash, const uint256& proTxHash, const CBLSSecretKey& skContribution);
bool GetVerifiedContributions(Consensus::LLMQType llmqType, const uint256& quorumHash, const std::vector<bool>& validMembers, std::vector<uint16_t>& memberIndexesRet, std::vector<BLSVerificationVectorPtr>& vvecsRet, BLSSecretKeyVector& skContributionsRet);
bool GetVerifiedContribution(Consensus::LLMQType llmqType, const uint256& quorumHash, const uint256& proTxHash, BLSVerificationVectorPtr& vvecRet, CBLSSecretKey& skContributionRet);
private:
void CleanupCache();
};
extern CDKGSessionManager* quorumDKGSessionManager;
}
#endif //DASH_QUORUMS_DKGSESSIONMGR_H