521 lines
24 KiB
C++
521 lines
24 KiB
C++
// Copyright (c) 2014-2017 The Dash Core developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "activemasternode.h"
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#include "governance.h"
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#include "init.h"
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#include "validation.h"
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#include "masternode-payments.h"
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#include "masternode-sync.h"
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#include "masternodeman.h"
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#include "netfulfilledman.h"
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#include "netmessagemaker.h"
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#include "ui_interface.h"
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#include "evo/deterministicmns.h"
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class CMasternodeSync;
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CMasternodeSync masternodeSync;
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void CMasternodeSync::Fail()
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{
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nTimeLastFailure = GetTime();
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nCurrentAsset = MASTERNODE_SYNC_FAILED;
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}
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void CMasternodeSync::Reset()
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{
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nCurrentAsset = MASTERNODE_SYNC_INITIAL;
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nTriedPeerCount = 0;
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nTimeAssetSyncStarted = GetTime();
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nTimeLastBumped = GetTime();
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nTimeLastFailure = 0;
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}
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void CMasternodeSync::BumpAssetLastTime(const std::string& strFuncName)
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{
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if(IsSynced() || IsFailed()) return;
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nTimeLastBumped = GetTime();
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LogPrint("mnsync", "CMasternodeSync::BumpAssetLastTime -- %s\n", strFuncName);
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}
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std::string CMasternodeSync::GetAssetName()
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{
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switch(nCurrentAsset)
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{
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case(MASTERNODE_SYNC_INITIAL): return "MASTERNODE_SYNC_INITIAL";
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case(MASTERNODE_SYNC_WAITING): return "MASTERNODE_SYNC_WAITING";
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case(MASTERNODE_SYNC_LIST): return "MASTERNODE_SYNC_LIST";
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case(MASTERNODE_SYNC_MNW): return "MASTERNODE_SYNC_MNW";
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case(MASTERNODE_SYNC_GOVERNANCE): return "MASTERNODE_SYNC_GOVERNANCE";
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case(MASTERNODE_SYNC_FAILED): return "MASTERNODE_SYNC_FAILED";
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case MASTERNODE_SYNC_FINISHED: return "MASTERNODE_SYNC_FINISHED";
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default: return "UNKNOWN";
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}
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}
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void CMasternodeSync::SwitchToNextAsset(CConnman& connman)
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{
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switch(nCurrentAsset)
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{
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case(MASTERNODE_SYNC_FAILED):
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throw std::runtime_error("Can't switch to next asset from failed, should use Reset() first!");
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break;
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case(MASTERNODE_SYNC_INITIAL):
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nCurrentAsset = MASTERNODE_SYNC_WAITING;
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Starting %s\n", GetAssetName());
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break;
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case(MASTERNODE_SYNC_WAITING):
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Completed %s in %llds\n", GetAssetName(), GetTime() - nTimeAssetSyncStarted);
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if (deterministicMNManager->IsDeterministicMNsSporkActive()) {
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nCurrentAsset = MASTERNODE_SYNC_GOVERNANCE;
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} else {
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nCurrentAsset = MASTERNODE_SYNC_LIST;
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}
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Starting %s\n", GetAssetName());
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break;
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case(MASTERNODE_SYNC_LIST):
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Completed %s in %llds\n", GetAssetName(), GetTime() - nTimeAssetSyncStarted);
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if (deterministicMNManager->IsDeterministicMNsSporkActive()) {
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nCurrentAsset = MASTERNODE_SYNC_GOVERNANCE;
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} else {
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nCurrentAsset = MASTERNODE_SYNC_MNW;
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}
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Starting %s\n", GetAssetName());
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break;
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case(MASTERNODE_SYNC_MNW):
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Completed %s in %llds\n", GetAssetName(), GetTime() - nTimeAssetSyncStarted);
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nCurrentAsset = MASTERNODE_SYNC_GOVERNANCE;
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Starting %s\n", GetAssetName());
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break;
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case(MASTERNODE_SYNC_GOVERNANCE):
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Completed %s in %llds\n", GetAssetName(), GetTime() - nTimeAssetSyncStarted);
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nCurrentAsset = MASTERNODE_SYNC_FINISHED;
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uiInterface.NotifyAdditionalDataSyncProgressChanged(1);
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//try to activate our masternode if possible
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legacyActiveMasternodeManager.ManageState(connman);
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connman.ForEachNode(CConnman::AllNodes, [](CNode* pnode) {
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netfulfilledman.AddFulfilledRequest(pnode->addr, "full-sync");
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});
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LogPrintf("CMasternodeSync::SwitchToNextAsset -- Sync has finished\n");
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break;
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}
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nTriedPeerCount = 0;
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nTimeAssetSyncStarted = GetTime();
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BumpAssetLastTime("CMasternodeSync::SwitchToNextAsset");
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}
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std::string CMasternodeSync::GetSyncStatus()
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{
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switch (masternodeSync.nCurrentAsset) {
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case MASTERNODE_SYNC_INITIAL: return _("Synchroning blockchain...");
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case MASTERNODE_SYNC_WAITING: return _("Synchronization pending...");
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case MASTERNODE_SYNC_LIST: return _("Synchronizing masternodes...");
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case MASTERNODE_SYNC_MNW: return _("Synchronizing masternode payments...");
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case MASTERNODE_SYNC_GOVERNANCE: return _("Synchronizing governance objects...");
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case MASTERNODE_SYNC_FAILED: return _("Synchronization failed");
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case MASTERNODE_SYNC_FINISHED: return _("Synchronization finished");
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default: return "";
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}
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}
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void CMasternodeSync::ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv)
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{
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if (strCommand == NetMsgType::SYNCSTATUSCOUNT) { //Sync status count
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//do not care about stats if sync process finished or failed
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if(IsSynced() || IsFailed()) return;
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int nItemID;
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int nCount;
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vRecv >> nItemID >> nCount;
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LogPrintf("SYNCSTATUSCOUNT -- got inventory count: nItemID=%d nCount=%d peer=%d\n", nItemID, nCount, pfrom->id);
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}
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}
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void CMasternodeSync::ProcessTick(CConnman& connman)
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{
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static int nTick = 0;
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nTick++;
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// reset the sync process if the last call to this function was more than 60 minutes ago (client was in sleep mode)
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static int64_t nTimeLastProcess = GetTime();
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if(GetTime() - nTimeLastProcess > 60*60) {
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LogPrintf("CMasternodeSync::ProcessTick -- WARNING: no actions for too long, restarting sync...\n");
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Reset();
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SwitchToNextAsset(connman);
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nTimeLastProcess = GetTime();
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return;
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}
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if(GetTime() - nTimeLastProcess < MASTERNODE_SYNC_TICK_SECONDS) {
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// too early, nothing to do here
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return;
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}
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nTimeLastProcess = GetTime();
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// reset sync status in case of any other sync failure
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if(IsFailed()) {
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if(nTimeLastFailure + (1*60) < GetTime()) { // 1 minute cooldown after failed sync
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LogPrintf("CMasternodeSync::ProcessTick -- WARNING: failed to sync, trying again...\n");
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Reset();
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SwitchToNextAsset(connman);
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}
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return;
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}
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// gradually request the rest of the votes after sync finished
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if(IsSynced()) {
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std::vector<CNode*> vNodesCopy = connman.CopyNodeVector(CConnman::FullyConnectedOnly);
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governance.RequestGovernanceObjectVotes(vNodesCopy, connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// Calculate "progress" for LOG reporting / GUI notification
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double nSyncProgress = double(nTriedPeerCount + (nCurrentAsset - 1) * 8) / (8*4);
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d nTriedPeerCount %d nSyncProgress %f\n", nTick, nCurrentAsset, nTriedPeerCount, nSyncProgress);
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uiInterface.NotifyAdditionalDataSyncProgressChanged(nSyncProgress);
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std::vector<CNode*> vNodesCopy = connman.CopyNodeVector(CConnman::FullyConnectedOnly);
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for (auto& pnode : vNodesCopy)
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{
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CNetMsgMaker msgMaker(pnode->GetSendVersion());
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// Don't try to sync any data from outbound "masternode" connections -
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// they are temporary and should be considered unreliable for a sync process.
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// Inbound connection this early is most likely a "masternode" connection
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// initiated from another node, so skip it too.
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if(pnode->fMasternode || (fMasternodeMode && pnode->fInbound)) continue;
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// QUICK MODE (REGTEST ONLY!)
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if(Params().NetworkIDString() == CBaseChainParams::REGTEST)
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{
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if (nCurrentAsset == MASTERNODE_SYNC_WAITING) {
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connman.PushMessage(pnode, msgMaker.Make(NetMsgType::GETSPORKS)); //get current network sporks
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SwitchToNextAsset(connman);
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} else if (nCurrentAsset == MASTERNODE_SYNC_LIST) {
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if (!deterministicMNManager->IsDeterministicMNsSporkActive()) {
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mnodeman.DsegUpdate(pnode, connman);
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}
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SwitchToNextAsset(connman);
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} else if (nCurrentAsset == MASTERNODE_SYNC_MNW) {
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if (!deterministicMNManager->IsDeterministicMNsSporkActive()) {
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connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MASTERNODEPAYMENTSYNC)); //sync payment votes
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}
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SwitchToNextAsset(connman);
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} else if (nCurrentAsset == MASTERNODE_SYNC_GOVERNANCE) {
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SendGovernanceSyncRequest(pnode, connman);
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SwitchToNextAsset(connman);
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}
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// NORMAL NETWORK MODE - TESTNET/MAINNET
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{
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if(netfulfilledman.HasFulfilledRequest(pnode->addr, "full-sync")) {
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// We already fully synced from this node recently,
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// disconnect to free this connection slot for another peer.
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pnode->fDisconnect = true;
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LogPrintf("CMasternodeSync::ProcessTick -- disconnecting from recently synced peer=%d\n", pnode->id);
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continue;
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}
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// SPORK : ALWAYS ASK FOR SPORKS AS WE SYNC
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if(!netfulfilledman.HasFulfilledRequest(pnode->addr, "spork-sync")) {
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// always get sporks first, only request once from each peer
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netfulfilledman.AddFulfilledRequest(pnode->addr, "spork-sync");
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// get current network sporks
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connman.PushMessage(pnode, msgMaker.Make(NetMsgType::GETSPORKS));
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d -- requesting sporks from peer=%d\n", nTick, nCurrentAsset, pnode->id);
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}
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// INITIAL TIMEOUT
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if(nCurrentAsset == MASTERNODE_SYNC_WAITING) {
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if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
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// At this point we know that:
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// a) there are peers (because we are looping on at least one of them);
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// b) we waited for at least MASTERNODE_SYNC_TIMEOUT_SECONDS since we reached
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// the headers tip the last time (i.e. since we switched from
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// MASTERNODE_SYNC_INITIAL to MASTERNODE_SYNC_WAITING and bumped time);
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// c) there were no blocks (UpdatedBlockTip, NotifyHeaderTip) or headers (AcceptedBlockHeader)
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// for at least MASTERNODE_SYNC_TIMEOUT_SECONDS.
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// We must be at the tip already, let's move to the next asset.
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SwitchToNextAsset(connman);
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}
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}
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// MNLIST : SYNC MASTERNODE LIST FROM OTHER CONNECTED CLIENTS
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if(nCurrentAsset == MASTERNODE_SYNC_LIST) {
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if (deterministicMNManager->IsDeterministicMNsSporkActive()) {
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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LogPrint("masternode", "CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d nTimeLastBumped %lld GetTime() %lld diff %lld\n", nTick, nCurrentAsset, nTimeLastBumped, GetTime(), GetTime() - nTimeLastBumped);
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// check for timeout first
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if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d -- timeout\n", nTick, nCurrentAsset);
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if (nTriedPeerCount == 0) {
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LogPrintf("CMasternodeSync::ProcessTick -- ERROR: failed to sync %s\n", GetAssetName());
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// there is no way we can continue without masternode list, fail here and try later
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Fail();
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// request from three peers max
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if (nTriedPeerCount > 2) {
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// only request once from each peer
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if(netfulfilledman.HasFulfilledRequest(pnode->addr, "masternode-list-sync")) continue;
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netfulfilledman.AddFulfilledRequest(pnode->addr, "masternode-list-sync");
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if (pnode->nVersion < mnpayments.GetMinMasternodePaymentsProto()) continue;
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nTriedPeerCount++;
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mnodeman.DsegUpdate(pnode, connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return; //this will cause each peer to get one request each six seconds for the various assets we need
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}
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// MNW : SYNC MASTERNODE PAYMENT VOTES FROM OTHER CONNECTED CLIENTS
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if(nCurrentAsset == MASTERNODE_SYNC_MNW) {
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if (deterministicMNManager->IsDeterministicMNsSporkActive()) {
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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LogPrint("mnpayments", "CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d nTimeLastBumped %lld GetTime() %lld diff %lld\n", nTick, nCurrentAsset, nTimeLastBumped, GetTime(), GetTime() - nTimeLastBumped);
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// check for timeout first
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// This might take a lot longer than MASTERNODE_SYNC_TIMEOUT_SECONDS due to new blocks,
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// but that should be OK and it should timeout eventually.
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if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d -- timeout\n", nTick, nCurrentAsset);
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if (nTriedPeerCount == 0) {
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LogPrintf("CMasternodeSync::ProcessTick -- ERROR: failed to sync %s\n", GetAssetName());
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// probably not a good idea to proceed without winner list
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Fail();
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// check for data
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// if mnpayments already has enough blocks and votes, switch to the next asset
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// try to fetch data from at least two peers though
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if(nTriedPeerCount > 1 && mnpayments.IsEnoughData()) {
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d -- found enough data\n", nTick, nCurrentAsset);
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// request from three peers max
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if (nTriedPeerCount > 2) {
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// only request once from each peer
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if(netfulfilledman.HasFulfilledRequest(pnode->addr, "masternode-payment-sync")) continue;
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netfulfilledman.AddFulfilledRequest(pnode->addr, "masternode-payment-sync");
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if(pnode->nVersion < mnpayments.GetMinMasternodePaymentsProto()) continue;
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nTriedPeerCount++;
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// ask node for all payment votes it has (new nodes will only return votes for future payments)
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connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MASTERNODEPAYMENTSYNC));
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// ask node for missing pieces only (old nodes will not be asked)
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mnpayments.RequestLowDataPaymentBlocks(pnode, connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return; //this will cause each peer to get one request each six seconds for the various assets we need
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}
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// GOVOBJ : SYNC GOVERNANCE ITEMS FROM OUR PEERS
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if(nCurrentAsset == MASTERNODE_SYNC_GOVERNANCE) {
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LogPrint("gobject", "CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d nTimeLastBumped %lld GetTime() %lld diff %lld\n", nTick, nCurrentAsset, nTimeLastBumped, GetTime(), GetTime() - nTimeLastBumped);
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// check for timeout first
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if(GetTime() - nTimeLastBumped > MASTERNODE_SYNC_TIMEOUT_SECONDS) {
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d -- timeout\n", nTick, nCurrentAsset);
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if(nTriedPeerCount == 0) {
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LogPrintf("CMasternodeSync::ProcessTick -- WARNING: failed to sync %s\n", GetAssetName());
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// it's kind of ok to skip this for now, hopefully we'll catch up later?
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}
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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// only request obj sync once from each peer, then request votes on per-obj basis
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if(netfulfilledman.HasFulfilledRequest(pnode->addr, "governance-sync")) {
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int nObjsLeftToAsk = governance.RequestGovernanceObjectVotes(pnode, connman);
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static int64_t nTimeNoObjectsLeft = 0;
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// check for data
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if(nObjsLeftToAsk == 0) {
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static int nLastTick = 0;
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static int nLastVotes = 0;
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if(nTimeNoObjectsLeft == 0) {
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// asked all objects for votes for the first time
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nTimeNoObjectsLeft = GetTime();
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}
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// make sure the condition below is checked only once per tick
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if(nLastTick == nTick) continue;
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if(GetTime() - nTimeNoObjectsLeft > MASTERNODE_SYNC_TIMEOUT_SECONDS &&
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governance.GetVoteCount() - nLastVotes < std::max(int(0.0001 * nLastVotes), MASTERNODE_SYNC_TICK_SECONDS)
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) {
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// We already asked for all objects, waited for MASTERNODE_SYNC_TIMEOUT_SECONDS
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// after that and less then 0.01% or MASTERNODE_SYNC_TICK_SECONDS
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// (i.e. 1 per second) votes were recieved during the last tick.
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// We can be pretty sure that we are done syncing.
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LogPrintf("CMasternodeSync::ProcessTick -- nTick %d nCurrentAsset %d -- asked for all objects, nothing to do\n", nTick, nCurrentAsset);
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// reset nTimeNoObjectsLeft to be able to use the same condition on resync
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nTimeNoObjectsLeft = 0;
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SwitchToNextAsset(connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return;
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}
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nLastTick = nTick;
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nLastVotes = governance.GetVoteCount();
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}
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continue;
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}
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netfulfilledman.AddFulfilledRequest(pnode->addr, "governance-sync");
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if (pnode->nVersion < MIN_GOVERNANCE_PEER_PROTO_VERSION) continue;
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nTriedPeerCount++;
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SendGovernanceSyncRequest(pnode, connman);
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connman.ReleaseNodeVector(vNodesCopy);
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return; //this will cause each peer to get one request each six seconds for the various assets we need
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}
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}
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}
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// looped through all nodes, release them
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connman.ReleaseNodeVector(vNodesCopy);
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}
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void CMasternodeSync::SendGovernanceSyncRequest(CNode* pnode, CConnman& connman)
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{
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CNetMsgMaker msgMaker(pnode->GetSendVersion());
|
|
|
|
if(pnode->nVersion >= GOVERNANCE_FILTER_PROTO_VERSION) {
|
|
CBloomFilter filter;
|
|
filter.clear();
|
|
|
|
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MNGOVERNANCESYNC, uint256(), filter));
|
|
}
|
|
else {
|
|
connman.PushMessage(pnode, msgMaker.Make(NetMsgType::MNGOVERNANCESYNC, uint256()));
|
|
}
|
|
}
|
|
|
|
void CMasternodeSync::AcceptedBlockHeader(const CBlockIndex *pindexNew)
|
|
{
|
|
LogPrint("mnsync", "CMasternodeSync::AcceptedBlockHeader -- pindexNew->nHeight: %d\n", pindexNew->nHeight);
|
|
|
|
if (!IsBlockchainSynced()) {
|
|
// Postpone timeout each time new block header arrives while we are still syncing blockchain
|
|
BumpAssetLastTime("CMasternodeSync::AcceptedBlockHeader");
|
|
}
|
|
}
|
|
|
|
void CMasternodeSync::NotifyHeaderTip(const CBlockIndex *pindexNew, bool fInitialDownload, CConnman& connman)
|
|
{
|
|
LogPrint("mnsync", "CMasternodeSync::NotifyHeaderTip -- pindexNew->nHeight: %d fInitialDownload=%d\n", pindexNew->nHeight, fInitialDownload);
|
|
|
|
if (IsFailed() || IsSynced() || !pindexBestHeader)
|
|
return;
|
|
|
|
if (!IsBlockchainSynced()) {
|
|
// Postpone timeout each time new block arrives while we are still syncing blockchain
|
|
BumpAssetLastTime("CMasternodeSync::NotifyHeaderTip");
|
|
}
|
|
}
|
|
|
|
void CMasternodeSync::UpdatedBlockTip(const CBlockIndex *pindexNew, bool fInitialDownload, CConnman& connman)
|
|
{
|
|
LogPrint("mnsync", "CMasternodeSync::UpdatedBlockTip -- pindexNew->nHeight: %d fInitialDownload=%d\n", pindexNew->nHeight, fInitialDownload);
|
|
|
|
if (IsFailed() || IsSynced() || !pindexBestHeader)
|
|
return;
|
|
|
|
if (!IsBlockchainSynced()) {
|
|
// Postpone timeout each time new block arrives while we are still syncing blockchain
|
|
BumpAssetLastTime("CMasternodeSync::UpdatedBlockTip");
|
|
}
|
|
|
|
if (fInitialDownload) {
|
|
// switched too early
|
|
if (IsBlockchainSynced()) {
|
|
Reset();
|
|
}
|
|
|
|
// no need to check any further while still in IBD mode
|
|
return;
|
|
}
|
|
|
|
// Note: since we sync headers first, it should be ok to use this
|
|
static bool fReachedBestHeader = false;
|
|
bool fReachedBestHeaderNew = pindexNew->GetBlockHash() == pindexBestHeader->GetBlockHash();
|
|
|
|
if (fReachedBestHeader && !fReachedBestHeaderNew) {
|
|
// Switching from true to false means that we previousely stuck syncing headers for some reason,
|
|
// probably initial timeout was not enough,
|
|
// because there is no way we can update tip not having best header
|
|
Reset();
|
|
fReachedBestHeader = false;
|
|
return;
|
|
}
|
|
|
|
fReachedBestHeader = fReachedBestHeaderNew;
|
|
|
|
LogPrint("mnsync", "CMasternodeSync::UpdatedBlockTip -- pindexNew->nHeight: %d pindexBestHeader->nHeight: %d fInitialDownload=%d fReachedBestHeader=%d\n",
|
|
pindexNew->nHeight, pindexBestHeader->nHeight, fInitialDownload, fReachedBestHeader);
|
|
|
|
if (!IsBlockchainSynced() && fReachedBestHeader) {
|
|
if (fLiteMode) {
|
|
// nothing to do in lite mode, just finish the process immediately
|
|
nCurrentAsset = MASTERNODE_SYNC_FINISHED;
|
|
return;
|
|
}
|
|
// Reached best header while being in initial mode.
|
|
// We must be at the tip already, let's move to the next asset.
|
|
SwitchToNextAsset(connman);
|
|
}
|
|
}
|
|
|
|
void CMasternodeSync::DoMaintenance(CConnman &connman)
|
|
{
|
|
if (ShutdownRequested()) return;
|
|
|
|
ProcessTick(connman);
|
|
}
|