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core: add a workaround for light sync

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Péter Szilágyi 2017-10-25 11:59:07 +03:00
parent 192d23327c
commit af93ad5e30
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1 changed files with 5 additions and 1 deletions
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6
core/chain_indexer.go
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@ -201,7 +201,11 @@ func (c *ChainIndexer) eventLoop(currentHeader *types.Header, events chan ChainE
}
header := ev.Block.Header()
if header.ParentHash != prevHash {
c.newHead(FindCommonAncestor(c.chainDb, prevHeader, header).Number.Uint64(), true)
// Reorg to the common ancestor (might not exist in light sync mode, skip reorg then)
// TODO(karalabe, zsfelfoldi): This seems a bit brittle, can we detect this case explicitly?
if h := FindCommonAncestor(c.chainDb, prevHeader, header); h != nil {
c.newHead(h.Number.Uint64(), true)
}
}
c.newHead(header.Number.Uint64(), false)