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Fix a potential issue with removing orphan blocks.

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The range loop is over a local var, so the local variable needs to be
updated and then set back into the chain instance after the range loop.
This commit is contained in:
Dave Collins 2013-08-04 13:41:05 -05:00
parent 0c2d4435ca
commit c00de3ffd5
1 changed files with 2 additions and 1 deletions
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3
chain.go
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@ -194,9 +194,10 @@ func (b *BlockChain) removeOrphanBlock(orphan *orphanBlock) {
if hash.IsEqual(orphanHash) { if hash.IsEqual(orphanHash) {
copy(orphans[i:], orphans[i+1:]) copy(orphans[i:], orphans[i+1:])
orphans[len(orphans)-1] = nil orphans[len(orphans)-1] = nil
b.prevOrphans[*prevHash] = orphans[:len(orphans)-1] orphans = orphans[:len(orphans)-1]
} }
} }
b.prevOrphans[*prevHash] = orphans
// Remove the map entry altogether if there are no longer any orphans // Remove the map entry altogether if there are no longer any orphans
// which depend on the parent hash. // which depend on the parent hash.