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Quit early when read conflict is detected

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Jerry 2024-09-17 10:53:04 -07:00
parent f9ba824588
commit 81efd63269
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1 changed files with 6 additions and 3 deletions
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9
core/state/statedb.go
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@ -329,10 +329,13 @@ func MVRead[T any](s *StateDB, k blockstm.Key, defaultV T, readStorage func(s *S
return defaultV
}
// TODO: I assume we don't want to overwrite an existing read because this could - for example - change a storage
// read to map if the same value is read multiple times.
if _, ok := s.readMap[k]; !ok {
if prevRd, ok := s.readMap[k]; !ok {
s.readMap[k] = rd
} else {
if prevRd.Kind != rd.Kind || prevRd.V.TxnIndex != rd.V.TxnIndex || prevRd.V.Incarnation != rd.V.Incarnation {
s.dep = rd.V.TxnIndex
panic("Read conflict detected")
}
}
return