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removeForReorg calls once-per-disconnect-> once-per-reorg

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Matt Corallo 2015-09-09 16:31:20 -07:00 committed by Suhas Daftuar
parent 474b84a741
commit bb8ea1f630
2 changed files with 15 additions and 9 deletions
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22
src/main.cpp
View File

@ -2310,12 +2310,11 @@ void static UpdateTip(CBlockIndex *pindexNew) {
}
}
/** Disconnect chainActive's tip. You want to manually re-limit mempool size after this */
/** Disconnect chainActive's tip. You probably want to call mempool.removeForReorg and manually re-limit mempool size after this, with cs_main held. */
bool static DisconnectTip(CValidationState& state, const Consensus::Params& consensusParams)
{
CBlockIndex *pindexDelete = chainActive.Tip();
assert(pindexDelete);
mempool.check(pcoinsTip);
// Read block from disk.
CBlock block;
if (!ReadBlockFromDisk(block, pindexDelete, consensusParams))
@ -2350,8 +2349,6 @@ bool static DisconnectTip(CValidationState& state, const Consensus::Params& cons
// UpdateTransactionsFromBlock finds descendants of any transactions in this
// block that were added back and cleans up the mempool state.
mempool.UpdateTransactionsFromBlock(vHashUpdate);
mempool.removeForReorg(pcoinsTip, pindexDelete->nHeight);
mempool.check(pcoinsTip);
// Update chainActive and related variables.
UpdateTip(pindexDelete->pprev);
// Let wallets know transactions went from 1-confirmed to
@ -2375,7 +2372,6 @@ static int64_t nTimePostConnect = 0;
bool static ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const CBlock* pblock)
{
assert(pindexNew->pprev == chainActive.Tip());
mempool.check(pcoinsTip);
// Read block from disk.
int64_t nTime1 = GetTimeMicros();
CBlock block;
@ -2412,7 +2408,6 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
// Remove conflicting transactions from the mempool.
list<CTransaction> txConflicted;
mempool.removeForBlock(pblock->vtx, pindexNew->nHeight, txConflicted, !IsInitialBlockDownload());
mempool.check(pcoinsTip);
// Update chainActive & related variables.
UpdateTip(pindexNew);
// Tell wallet about transactions that went from mempool
@ -2515,8 +2510,11 @@ static bool ActivateBestChainStep(CValidationState& state, const CChainParams& c
// Disconnect active blocks which are no longer in the best chain.
bool fBlocksDisconnected = false;
while (chainActive.Tip() && chainActive.Tip() != pindexFork) {
if (!DisconnectTip(state, chainparams.GetConsensus()))
if (!DisconnectTip(state, chainparams.GetConsensus())) {
// Probably an AbortNode() error, but try to keep mempool consistent anyway
mempool.removeForReorg(pcoinsTip, chainActive.Tip()->nHeight + 1);
return false;
}
fBlocksDisconnected = true;
}
@ -2550,6 +2548,9 @@ static bool ActivateBestChainStep(CValidationState& state, const CChainParams& c
break;
} else {
// A system error occurred (disk space, database error, ...).
// Probably gonna shut down ASAP, but try to keep mempool consistent anyway
if (fBlocksDisconnected)
mempool.removeForReorg(pcoinsTip, chainActive.Tip()->nHeight + 1);
return false;
}
} else {
@ -2563,8 +2564,11 @@ static bool ActivateBestChainStep(CValidationState& state, const CChainParams& c
}
}
if (fBlocksDisconnected)
if (fBlocksDisconnected) {
mempool.removeForReorg(pcoinsTip, chainActive.Tip()->nHeight + 1);
mempool.TrimToSize(GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000);
}
mempool.check(pcoinsTip);
// Callbacks/notifications for a new best chain.
if (fInvalidFound)
@ -2672,6 +2676,7 @@ bool InvalidateBlock(CValidationState& state, const Consensus::Params& consensus
// ActivateBestChain considers blocks already in chainActive
// unconditionally valid already, so force disconnect away from it.
if (!DisconnectTip(state, consensusParams)) {
mempool.removeForReorg(pcoinsTip, chainActive.Tip()->nHeight + 1);
return false;
}
}
@ -2689,6 +2694,7 @@ bool InvalidateBlock(CValidationState& state, const Consensus::Params& consensus
}
InvalidChainFound(pindex);
mempool.removeForReorg(pcoinsTip, chainActive.Tip()->nHeight + 1);
return true;
}

2
src/main.h
View File

@ -467,7 +467,7 @@ bool InvalidateBlock(CValidationState& state, const Consensus::Params& consensus
/** Remove invalidity status from a block and its descendants. */
bool ReconsiderBlock(CValidationState& state, CBlockIndex *pindex);
/** The currently-connected chain of blocks. */
/** The currently-connected chain of blocks (protected by cs_main). */
extern CChain chainActive;
/** Global variable that points to the active CCoinsView (protected by cs_main) */