dash/src/governance-votedb.h
UdjinM6 e71cb3861d
Store CGovernanceVote hash in memory instead of recalculating it via GetHash() every time (#1946)
* Store CGovernanceVote hash in memory instead of recalculating it via GetHash() every time

* Rename GetVoteDataStream to SerializeVoteToStream
2018-02-21 19:35:37 +03:00

93 lines
2.1 KiB
C++

// Copyright (c) 2014-2017 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 GOVERNANCE_VOTEDB_H
#define GOVERNANCE_VOTEDB_H
#include <list>
#include <map>
#include "governance-vote.h"
#include "serialize.h"
#include "streams.h"
#include "uint256.h"
/**
* Represents the collection of votes associated with a given CGovernanceObject
* Recently received votes are held in memory until a maximum size is reached after
* which older votes a flushed to a disk file.
*
* Note: This is a stub implementation that doesn't limit the number of votes held
* in memory and doesn't flush to disk.
*/
class CGovernanceObjectVoteFile
{
public: // Types
typedef std::list<CGovernanceVote> vote_l_t;
typedef vote_l_t::iterator vote_l_it;
typedef vote_l_t::const_iterator vote_l_cit;
typedef std::map<uint256,vote_l_it> vote_m_t;
typedef vote_m_t::iterator vote_m_it;
typedef vote_m_t::const_iterator vote_m_cit;
private:
static const int MAX_MEMORY_VOTES = -1;
int nMemoryVotes;
vote_l_t listVotes;
vote_m_t mapVoteIndex;
public:
CGovernanceObjectVoteFile();
CGovernanceObjectVoteFile(const CGovernanceObjectVoteFile& other);
/**
* Add a vote to the file
*/
void AddVote(const CGovernanceVote& vote);
/**
* Return true if the vote with this hash is currently cached in memory
*/
bool HasVote(const uint256& nHash) const;
/**
* Retrieve a vote cached in memory
*/
bool SerializeVoteToStream(const uint256& nHash, CDataStream& ss) const;
int GetVoteCount() {
return nMemoryVotes;
}
std::vector<CGovernanceVote> GetVotes() const;
void RemoveVotesFromMasternode(const COutPoint& outpointMasternode);
ADD_SERIALIZE_METHODS;
template <typename Stream, typename Operation>
inline void SerializationOp(Stream& s, Operation ser_action)
{
READWRITE(nMemoryVotes);
READWRITE(listVotes);
if(ser_action.ForRead()) {
RebuildIndex();
}
}
private:
void RebuildIndex();
};
#endif