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Add pblock to connectTrace at the end of ConnectTip, not start

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This makes ConnectTip responsible for the ConnectTrace instead
of splitting the logic between ActivateBestChainStep and ConnectTip
This commit is contained in:
Matt Corallo 2017-03-06 17:11:33 -05:00
parent f5e9a019a4
commit 822000cf82
1 changed files with 7 additions and 8 deletions
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15
src/validation.cpp
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@ -2219,24 +2219,23 @@ struct ConnectTrace {
* Connect a new block to chainActive. pblock is either NULL or a pointer to a CBlock
* corresponding to pindexNew, to bypass loading it again from disk.
*
* The block is always added to connectTrace (either after loading from disk or by copying
* pblock) - if that is not intended, care must be taken to remove the last entry in
* blocksConnected in case of failure.
* The block is added to connectTrace if connection succeeds.
*/
bool static ConnectTip(CValidationState& state, const CChainParams& chainparams, CBlockIndex* pindexNew, const std::shared_ptr<const CBlock>& pblock, ConnectTrace& connectTrace)
{
assert(pindexNew->pprev == chainActive.Tip());
// Read block from disk.
int64_t nTime1 = GetTimeMicros();
std::shared_ptr<const CBlock> pthisBlock;
if (!pblock) {
std::shared_ptr<CBlock> pblockNew = std::make_shared<CBlock>();
connectTrace.blocksConnected.emplace_back(pindexNew, pblockNew);
if (!ReadBlockFromDisk(*pblockNew, pindexNew, chainparams.GetConsensus()))
return AbortNode(state, "Failed to read block");
pthisBlock = pblockNew;
} else {
connectTrace.blocksConnected.emplace_back(pindexNew, pblock);
pthisBlock = pblock;
}
const CBlock& blockConnecting = *connectTrace.blocksConnected.back().second;
const CBlock& blockConnecting = *pthisBlock;
// Apply the block atomically to the chain state.
int64_t nTime2 = GetTimeMicros(); nTimeReadFromDisk += nTime2 - nTime1;
int64_t nTime3;
@ -2270,6 +2269,8 @@ bool static ConnectTip(CValidationState& state, const CChainParams& chainparams,
int64_t nTime6 = GetTimeMicros(); nTimePostConnect += nTime6 - nTime5; nTimeTotal += nTime6 - nTime1;
LogPrint(BCLog::BENCH, " - Connect postprocess: %.2fms [%.2fs]\n", (nTime6 - nTime5) * 0.001, nTimePostConnect * 0.000001);
LogPrint(BCLog::BENCH, "- Connect block: %.2fms [%.2fs]\n", (nTime6 - nTime1) * 0.001, nTimeTotal * 0.000001);
connectTrace.blocksConnected.emplace_back(pindexNew, std::move(pthisBlock));
return true;
}
@ -2388,8 +2389,6 @@ static bool ActivateBestChainStep(CValidationState& state, const CChainParams& c
state = CValidationState();
fInvalidFound = true;
fContinue = false;
// If we didn't actually connect the block, don't notify listeners about it
connectTrace.blocksConnected.pop_back();
break;
} else {
// A system error occurred (disk space, database error, ...).