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authorBas van Kervel <bas@ethdev.com>2016-07-26 22:37:04 +0800
committerBas van Kervel <bas@ethdev.com>2016-08-16 21:21:22 +0800
commitbb8059f6aa86d1052d7c2dd75a6985982cb278f4 (patch)
tree44c57f98592518652f9791655be98c75fc198760 /eth
parent4c2cc32f2e279baa3059603b8c8a4329f31606f6 (diff)
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core: ensure the canonical block is written before the canonical hash is set
Diffstat (limited to 'eth')
-rw-r--r--eth/filters/filter.go9
1 files changed, 6 insertions, 3 deletions
diff --git a/eth/filters/filter.go b/eth/filters/filter.go
index 995b588fb..fd739bf0e 100644
--- a/eth/filters/filter.go
+++ b/eth/filters/filter.go
@@ -74,6 +74,9 @@ func (self *Filter) SetTopics(topics [][]common.Hash) {
func (self *Filter) Find() vm.Logs {
latestHash := core.GetHeadBlockHash(self.db)
latestBlock := core.GetBlock(self.db, latestHash, core.GetBlockNumber(self.db, latestHash))
+ if latestBlock == nil {
+ return vm.Logs{}
+ }
var beginBlockNo uint64 = uint64(self.begin)
if self.begin == -1 {
beginBlockNo = latestBlock.NumberU64()
@@ -123,13 +126,13 @@ func (self *Filter) mipFind(start, end uint64, depth int) (logs vm.Logs) {
}
func (self *Filter) getLogs(start, end uint64) (logs vm.Logs) {
- var block *types.Block
-
for i := start; i <= end; i++ {
+ var block *types.Block
hash := core.GetCanonicalHash(self.db, i)
if hash != (common.Hash{}) {
block = core.GetBlock(self.db, hash, i)
- } else { // block not found
+ }
+ if block == nil { // block not found/written
return logs
}