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Don't load caches when blocks/chainstate was deleted and also delete old caches (#3280)

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* Don't load caches when blocks/chainstate was not present

* Delete old cache files when we decided to not load them

* Make sure cache files are of the exact format we expected them to be, flush empty objects into them instead of deleting files naively

* Streamline logic a bit, rename fIgnoreCacheFiles to fLoadCacheFiles

Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
This commit is contained in:
Alexander Block 2020-01-10 11:24:21 +01:00 committed by UdjinM6
parent ebf529e8aa
commit ce924278df
1 changed files with 39 additions and 13 deletions
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52
src/init.cpp
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@ -2074,32 +2074,58 @@ bool AppInitMain(boost::thread_group& threadGroup, CScheduler& scheduler)
// LOAD SERIALIZED DAT FILES INTO DATA CACHES FOR INTERNAL USE
bool fIgnoreCacheFiles = fLiteMode || fReindex || fReindexChainState;
if (!fIgnoreCacheFiles) {
fs::path pathDB = GetDataDir();
std::string strDBName;
bool fLoadCacheFiles = !(fLiteMode || fReindex || fReindexChainState);
{
LOCK(cs_main);
// was blocks/chainstate deleted?
if (chainActive.Tip() == nullptr) {
fLoadCacheFiles = false;
}
}
fs::path pathDB = GetDataDir();
std::string strDBName;
strDBName = "mncache.dat";
uiInterface.InitMessage(_("Loading masternode cache..."));
CFlatDB<CMasternodeMetaMan> flatdb1(strDBName, "magicMasternodeCache");
strDBName = "mncache.dat";
uiInterface.InitMessage(_("Loading masternode cache..."));
CFlatDB<CMasternodeMetaMan> flatdb1(strDBName, "magicMasternodeCache");
if (fLoadCacheFiles) {
if(!flatdb1.Load(mmetaman)) {
return InitError(_("Failed to load masternode cache from") + "\n" + (pathDB / strDBName).string());
}
} else {
CMasternodeMetaMan mmetamanTmp;
if(!flatdb1.Dump(mmetamanTmp)) {
return InitError(_("Failed to clear masternode cache at") + "\n" + (pathDB / strDBName).string());
}
}
strDBName = "governance.dat";
uiInterface.InitMessage(_("Loading governance cache..."));
CFlatDB<CGovernanceManager> flatdb3(strDBName, "magicGovernanceCache");
strDBName = "governance.dat";
uiInterface.InitMessage(_("Loading governance cache..."));
CFlatDB<CGovernanceManager> flatdb3(strDBName, "magicGovernanceCache");
if (fLoadCacheFiles) {
if(!flatdb3.Load(governance)) {
return InitError(_("Failed to load governance cache from") + "\n" + (pathDB / strDBName).string());
}
governance.InitOnLoad();
} else {
CGovernanceManager governanceTmp;
if(!flatdb3.Dump(governanceTmp)) {
return InitError(_("Failed to clear governance cache at") + "\n" + (pathDB / strDBName).string());
}
}
strDBName = "netfulfilled.dat";
uiInterface.InitMessage(_("Loading fulfilled requests cache..."));
CFlatDB<CNetFulfilledRequestManager> flatdb4(strDBName, "magicFulfilledCache");
strDBName = "netfulfilled.dat";
uiInterface.InitMessage(_("Loading fulfilled requests cache..."));
CFlatDB<CNetFulfilledRequestManager> flatdb4(strDBName, "magicFulfilledCache");
if (fLoadCacheFiles) {
if(!flatdb4.Load(netfulfilledman)) {
return InitError(_("Failed to load fulfilled requests cache from") + "\n" + (pathDB / strDBName).string());
}
} else {
CNetFulfilledRequestManager netfulfilledmanTmp;
if(!flatdb4.Dump(netfulfilledmanTmp)) {
return InitError(_("Failed to clear fulfilled requests cache at") + "\n" + (pathDB / strDBName).string());
}
}
// ********************************************************* Step 10c: schedule Dash-specific tasks