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authorMatt Corallo <git@bluematt.me>2017-07-06 20:00:11 -0400
committerMatt Corallo <git@bluematt.me>2017-07-27 15:03:05 -0400
commitb0f32497b873cd1eaf0be86f8e265355aa86174f (patch)
tree4f9c82cd3d5f51e5236254cdc874279391e75034 /src/validation.cpp
parenteda888e57352037ab2e60f6ef90098b3ce23a157 (diff)
More user-friendly error message if UTXO DB runs ahead of block DB
This gives LoadChainTip a return value - allowing it to indicate that the UTXO DB ran ahead of the block DB. This just provides a nicer error message instead of the previous mysterious assert(!setBlockIndexCandidates.empty()) error. This also calls ActivateBestChain in case we just loaded the genesis block in LoadChainTip, avoiding relying on the ActivateBestChain in ThreadImport before continuing init process.
Diffstat (limited to 'src/validation.cpp')
-rw-r--r--src/validation.cpp17
1 files changed, 14 insertions, 3 deletions
diff --git a/src/validation.cpp b/src/validation.cpp
index ebbdb7e651..91982ead90 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -3538,14 +3538,24 @@ bool static LoadBlockIndexDB(const CChainParams& chainparams)
return true;
}
-void LoadChainTip(const CChainParams& chainparams)
+bool LoadChainTip(const CChainParams& chainparams)
{
- if (chainActive.Tip() && chainActive.Tip()->GetBlockHash() == pcoinsTip->GetBestBlock()) return;
+ if (chainActive.Tip() && chainActive.Tip()->GetBlockHash() == pcoinsTip->GetBestBlock()) return true;
+
+ if (pcoinsTip->GetBestBlock().IsNull() && mapBlockIndex.size() == 1) {
+ // In case we just added the genesis block, connect it now, so
+ // that we always have a chainActive.Tip() when we return.
+ LogPrintf("%s: Connecting genesis block...\n", __func__);
+ CValidationState state;
+ if (!ActivateBestChain(state, chainparams)) {
+ return false;
+ }
+ }
// Load pointer to end of best chain
BlockMap::iterator it = mapBlockIndex.find(pcoinsTip->GetBestBlock());
if (it == mapBlockIndex.end())
- return;
+ return false;
chainActive.SetTip(it->second);
PruneBlockIndexCandidates();
@@ -3554,6 +3564,7 @@ void LoadChainTip(const CChainParams& chainparams)
chainActive.Tip()->GetBlockHash().ToString(), chainActive.Height(),
DateTimeStrFormat("%Y-%m-%d %H:%M:%S", chainActive.Tip()->GetBlockTime()),
GuessVerificationProgress(chainparams.TxData(), chainActive.Tip()));
+ return true;
}
CVerifyDB::CVerifyDB()