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refactoring: move LoadChainTip to CChainState method

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This commit is contained in:
James O'Beirne 2019-03-29 14:09:55 -04:00
parent f5809d5b13
commit bcf73d3b84
3 changed files with 18 additions and 14 deletions
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4
src/init.cpp
View file

@ -1557,8 +1557,8 @@ bool AppInitMain(InitInterfaces& interfaces)
is_coinsview_empty = fReset || fReindexChainState ||
::ChainstateActive().CoinsTip().GetBestBlock().IsNull();
if (!is_coinsview_empty) {
// LoadChainTip sets ::ChainActive() based on CoinsTip()'s best block
if (!LoadChainTip(chainparams)) {
// LoadChainTip initializes the chain based on CoinsTip()'s best block
if (!::ChainstateActive().LoadChainTip(chainparams)) {
strLoadError = _("Error initializing block database").translated;
break;
}

23
src/validation.cpp
View file

@ -3932,28 +3932,31 @@ bool static LoadBlockIndexDB(const CChainParams& chainparams) EXCLUSIVE_LOCKS_RE
return true;
}
bool LoadChainTip(const CChainParams& chainparams)
bool CChainState::LoadChainTip(const CChainParams& chainparams)
{
AssertLockHeld(cs_main);
const CCoinsViewCache& coins_cache = ::ChainstateActive().CoinsTip();
const CCoinsViewCache& coins_cache = CoinsTip();
assert(!coins_cache.GetBestBlock().IsNull()); // Never called when the coins view is empty
const CBlockIndex* tip = m_chain.Tip();
if (::ChainActive().Tip() &&
::ChainActive().Tip()->GetBlockHash() == coins_cache.GetBestBlock()) return true;
if (tip && tip->GetBlockHash() == coins_cache.GetBestBlock()) {
return true;
}
// Load pointer to end of best chain
CBlockIndex* pindex = LookupBlockIndex(coins_cache.GetBestBlock());
if (!pindex) {
return false;
}
::ChainActive().SetTip(pindex);
::ChainstateActive().PruneBlockIndexCandidates();
m_chain.SetTip(pindex);
PruneBlockIndexCandidates();
tip = m_chain.Tip();
LogPrintf("Loaded best chain: hashBestChain=%s height=%d date=%s progress=%f\n",
::ChainActive().Tip()->GetBlockHash().ToString(), ::ChainActive().Height(),
FormatISO8601DateTime(::ChainActive().Tip()->GetBlockTime()),
GuessVerificationProgress(chainparams.TxData(), ::ChainActive().Tip()));
tip->GetBlockHash().ToString(),
m_chain.Height(),
FormatISO8601DateTime(tip->GetBlockTime()),
GuessVerificationProgress(chainparams.TxData(), tip));
return true;
}

5
src/validation.h
View file

@ -240,8 +240,6 @@ bool LoadGenesisBlock(const CChainParams& chainparams);
/** Load the block tree and coins database from disk,
* initializing state if we're running with -reindex. */
bool LoadBlockIndex(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
/** Update the chain tip based on database information. */
bool LoadChainTip(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
/** Unload database information */
void UnloadBlockIndex();
/** Run an instance of the script checking thread */
@ -721,6 +719,9 @@ public:
*/
void CheckBlockIndex(const Consensus::Params& consensusParams);
/** Update the chain tip based on database information, i.e. CoinsTip()'s best block. */
bool LoadChainTip(const CChainParams& chainparams) EXCLUSIVE_LOCKS_REQUIRED(cs_main);
private:
bool ActivateBestChainStep(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexMostWork, const std::shared_ptr<const CBlock>& pblock, bool& fInvalidFound, ConnectTrace& connectTrace) EXCLUSIVE_LOCKS_REQUIRED(cs_main, ::mempool.cs);
bool ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace, DisconnectedBlockTransactions& disconnectpool) EXCLUSIVE_LOCKS_REQUIRED(cs_main, ::mempool.cs);