void CMasternodeSync::SendGovernanceSyncRequest(CNode* pnode, CConnman& connman)
{
const CNetMsgMaker msgMaker(pnode->GetSendVersion());
if(pnode->nVersion >= GOVERNANCE_FILTER_PROTO_VERSION) {
CBloomFilter filter;
filter.clear();
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MNGOVERNANCESYNC, uint256(), filter));
// connman.PushMessage(pnode, NetMsgType::MNGOVERNANCESYNC, uint256(), filter);
}
else {
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MNGOVERNANCESYNC, uint256()));
// connman.PushMessage(pnode, NetMsgType::MNGOVERNANCESYNC, uint256());
}
}
bool CAlert::RelayTo(CNode* pnode) const
{
const CNetMsgMaker msgMaker(pnode->GetSendVersion());
if (!IsInEffect())
return false;
// don't relay to nodes which haven't sent their version message
if (pnode->nVersion == 0)
return false;
// returns true if wasn't already contained in the set
if (pnode->setKnown.insert(GetHash()).second)
{
if (AppliesTo(pnode->nVersion, pnode->strSubVer) ||
AppliesToMe() ||
GetAdjustedTime() < nRelayUntil)
{
CConnman& connman = *g_connman;
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::ALERT, *this));
return true;
}
}
return false;
}
void CMasternodeSync::ProcessTick(CConnman& connman)
{
static int nTick = 0;
if(nTick++ % MASTERNODE_SYNC_TICK_SECONDS != 0) return;
// reset the sync process if the last call to this function was more than 60 minutes ago (client was in sleep mode)
static int64_t nTimeLastProcess = GetTime();
if(GetTime() - nTimeLastProcess > 60*60) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- WARNING: no actions for too long, restarting sync...\n");
Reset();
SwitchToNextAsset(connman);
nTimeLastProcess = GetTime();
return;
}
nTimeLastProcess = GetTime();
// reset sync status in case of any other sync failure
if(IsFailed()) {
if(nTimeLastFailure + (1*60) < GetTime()) { // 1 minute cooldown after failed sync
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- WARNING: failed to sync, trying again...\n");
Reset();
SwitchToNextAsset(connman);
}
return;
}
// gradually request the rest of the votes after sync finished
if(IsSynced()) {
std::vector<CNode*> vNodesCopy = connman.CopyNodeVector(CConnman::FullyConnectedOnly);
governance.RequestGovernanceObjectVotes(vNodesCopy, connman);
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// Calculate "progress" for LOG reporting / GUI notification
double nSyncProgress = double(nRequestedMasternodeAttempt + (nRequestedMasternodeAssets - 1) * 8) / (8*4);
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d nRequestedMasternodeAttempt %d nSyncProgress %f\n", nTick, nRequestedMasternodeAssets, nRequestedMasternodeAttempt, nSyncProgress);
uiInterface.NotifyAdditionalDataSyncProgressChanged(nSyncProgress);
std::vector<CNode*> vNodesCopy = connman.CopyNodeVector(CConnman::FullyConnectedOnly);
for (auto& pnode : vNodesCopy)
{
// Don't try to sync any data from outbound "masternode" connections -
// they are temporary and should be considered unreliable for a sync process.
// Inbound connection this early is most likely a "masternode" connection
// initiated from another node, so skip it too.
if(pnode->fMasternode || (fMasternodeMode && pnode->fInbound)) continue;
const CNetMsgMaker msgMaker(pnode->GetSendVersion());
// QUICK MODE (REGTEST ONLY!)
if(Params().NetworkIDString() == CBaseChainParams::REGTEST)
{
if(nRequestedMasternodeAttempt <= 2) {
mnodeman.DsegUpdate(pnode, connman);
} else if(nRequestedMasternodeAttempt < 4) {
//sync payment votes
if(pnode->nVersion == 70018) {
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MASTERNODEPAYMENTSYNC, mnpayments.GetStorageLimit())); //sync payment votes
} else {
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MASTERNODEPAYMENTSYNC)); //sync payment votes
}
// connman.PushMessage(pnode, NetMsgType::MASTERNODEPAYMENTSYNC, nMnCount); //sync payment votes
SendGovernanceSyncRequest(pnode, connman);
} else {
nRequestedMasternodeAssets = MASTERNODE_SYNC_FINISHED;
}
nRequestedMasternodeAttempt++;
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// NORMAL NETWORK MODE - TESTNET/MAINNET
{
if(netfulfilledman.HasFulfilledRequest(pnode->addr, "full-sync")) {
// We already fully synced from this node recently,
// disconnect to free this connection slot for another peer.
pnode->fDisconnect = true;
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- disconnecting from recently synced peer=%d\n", pnode->GetId());
continue;
}
// INITIAL TIMEOUT
if(nRequestedMasternodeAssets == MASTERNODE_SYNC_WAITING) {
if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
// At this point we know that:
// a) there are peers (because we are looping on at least one of them);
// b) we waited for at least MASTERNODE_SYNC_TIMEOUT_SECONDS since we reached
// the headers tip the last time (i.e. since we switched from
// MASTERNODE_SYNC_INITIAL to MASTERNODE_SYNC_WAITING and bumped time);
// c) there were no blocks (UpdatedBlockTip, NotifyHeaderTip) or headers (AcceptedBlockHeader)
// for at least MASTERNODE_SYNC_TIMEOUT_SECONDS.
// We must be at the tip already, let's move to the next asset.
SwitchToNextAsset(connman);
}
}
// MNLIST : SYNC MASTERNODE LIST FROM OTHER CONNECTED CLIENTS
if(nRequestedMasternodeAssets == MASTERNODE_SYNC_LIST) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d nTimeLastBumped %lld GetTime() %lld diff %lld\n", nTick, nRequestedMasternodeAssets, nTimeLastBumped, GetTime(), GetTime() - nTimeLastBumped);
// check for timeout first
if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d -- timeout\n", nTick, nRequestedMasternodeAssets);
if (nRequestedMasternodeAttempt == 0) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- ERROR: failed to sync %s\n", GetAssetName());
// there is no way we can continue without masternode list, fail here and try later
Fail();
connman.ReleaseNodeVector(vNodesCopy);
return;
}
SwitchToNextAsset(connman);
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// request from three peers max
if (nRequestedMasternodeAttempt > 2) {
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// only request once from each peer
if(netfulfilledman.HasFulfilledRequest(pnode->addr, "masternode-list-sync")) continue;
netfulfilledman.AddFulfilledRequest(pnode->addr, "masternode-list-sync");
if (pnode->nVersion < mnpayments.GetMinMasternodePaymentsProto()) continue;
nRequestedMasternodeAttempt++;
mnodeman.DsegUpdate(pnode, connman);
connman.ReleaseNodeVector(vNodesCopy);
return; //this will cause each peer to get one request each six seconds for the various assets we need
}
// MNW : SYNC MASTERNODE PAYMENT VOTES FROM OTHER CONNECTED CLIENTS
if(nRequestedMasternodeAssets == MASTERNODE_SYNC_MNW) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d nTimeLastBumped %lld GetTime() %lld diff %lld\n", nTick, nRequestedMasternodeAssets, nTimeLastBumped, GetTime(), GetTime() - nTimeLastBumped);
// check for timeout first
// This might take a lot longer than MASTERNODE_SYNC_TIMEOUT_SECONDS due to new blocks,
// but that should be OK and it should timeout eventually.
if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d -- timeout\n", nTick, nRequestedMasternodeAssets);
if (nRequestedMasternodeAttempt == 0) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- ERROR: failed to sync %s\n", GetAssetName());
// probably not a good idea to proceed without winner list
Fail();
connman.ReleaseNodeVector(vNodesCopy);
return;
}
SwitchToNextAsset(connman);
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// check for data
// if mnpayments already has enough blocks and votes, switch to the next asset
// try to fetch data from at least two peers though
if(nRequestedMasternodeAttempt > 1 && mnpayments.IsEnoughData()) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d -- found enough data\n", nTick, nRequestedMasternodeAssets);
SwitchToNextAsset(connman);
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// request from three peers max
if (nRequestedMasternodeAttempt > 2) {
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// only request once from each peer
if(netfulfilledman.HasFulfilledRequest(pnode->addr, "masternode-payment-sync")) continue;
netfulfilledman.AddFulfilledRequest(pnode->addr, "masternode-payment-sync");
if(pnode->nVersion < mnpayments.GetMinMasternodePaymentsProto()) continue;
nRequestedMasternodeAttempt++;
// ask node for all payment votes it has (new nodes will only return votes for future payments)
//sync payment votes
if(pnode->nVersion == 70018) {
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MASTERNODEPAYMENTSYNC, mnpayments.GetStorageLimit()));
} else {
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MASTERNODEPAYMENTSYNC));
}
// connman.PushMessage(pnode, NetMsgType::MASTERNODEPAYMENTSYNC, mnpayments.GetStorageLimit());
// ask node for missing pieces only (old nodes will not be asked)
mnpayments.RequestLowDataPaymentBlocks(pnode, connman);
connman.ReleaseNodeVector(vNodesCopy);
return; //this will cause each peer to get one request each six seconds for the various assets we need
}
// GOVOBJ : SYNC GOVERNANCE ITEMS FROM OUR PEERS
if(nRequestedMasternodeAssets == MASTERNODE_SYNC_GOVERNANCE) {
LogPrint(MCLog::GOV, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d nTimeLastBumped %lld GetTime() %lld diff %lld\n", nTick, nRequestedMasternodeAssets, nTimeLastBumped, GetTime(), GetTime() - nTimeLastBumped);
// check for timeout first
if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d -- timeout\n", nTick, nRequestedMasternodeAssets);
if(nRequestedMasternodeAttempt == 0) {
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- WARNING: failed to sync %s\n", GetAssetName());
// it's kind of ok to skip this for now, hopefully we'll catch up later?
}
SwitchToNextAsset(connman);
connman.ReleaseNodeVector(vNodesCopy);
return;
}
// only request obj sync once from each peer, then request votes on per-obj basis
if(netfulfilledman.HasFulfilledRequest(pnode->addr, "governance-sync")) {
int nObjsLeftToAsk = governance.RequestGovernanceObjectVotes(pnode, connman);
static int64_t nTimeNoObjectsLeft = 0;
// check for data
if(nObjsLeftToAsk == 0) {
static int nLastTick = 0;
static int nLastVotes = 0;
if(nTimeNoObjectsLeft == 0) {
// asked all objects for votes for the first time
nTimeNoObjectsLeft = GetTime();
}
// make sure the condition below is checked only once per tick
if(nLastTick == nTick) continue;
if(GetTime() - nTimeNoObjectsLeft > MASTERNODE_SYNC_TIMEOUT_SECONDS &&
governance.GetVoteCount() - nLastVotes < std::max(int(0.0001 * nLastVotes), MASTERNODE_SYNC_TICK_SECONDS)
) {
// We already asked for all objects, waited for MASTERNODE_SYNC_TIMEOUT_SECONDS
// after that and less then 0.01% or MASTERNODE_SYNC_TICK_SECONDS
// (i.e. 1 per second) votes were recieved during the last tick.
// We can be pretty sure that we are done syncing.
LogPrint(MCLog::MN, "CMasternodeSync::ProcessTick -- nTick %d nRequestedMasternodeAssets %d -- asked for all objects, nothing to do\n", nTick, nRequestedMasternodeAssets);
// reset nTimeNoObjectsLeft to be able to use the same condition on resync
nTimeNoObjectsLeft = 0;
SwitchToNextAsset(connman);
connman.ReleaseNodeVector(vNodesCopy);
return;
}
nLastTick = nTick;
nLastVotes = governance.GetVoteCount();
}
continue;
}
netfulfilledman.AddFulfilledRequest(pnode->addr, "governance-sync");
if (pnode->nVersion < MIN_GOVERNANCE_PEER_PROTO_VERSION) continue;
nRequestedMasternodeAttempt++;
SendGovernanceSyncRequest(pnode, connman);
connman.ReleaseNodeVector(vNodesCopy);
return; //this will cause each peer to get one request each six seconds for the various assets we need
}
}
}
// looped through all nodes, release them
connman.ReleaseNodeVector(vNodesCopy);
}
