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core: ensure the canonical block is written before the canonical hash is set

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This commit is contained in:
Bas van Kervel
2016-07-26 16:37:04 +02:00
parent 4c2cc32f2e
commit bb8059f6aa
5 changed files with 69 additions and 20 deletions
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6
core/database_util.go
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@ -204,7 +204,11 @@ func GetTd(db ethdb.Database, hash common.Hash, number uint64) *big.Int {
}
// GetBlock retrieves an entire block corresponding to the hash, assembling it
// back from the stored header and body.
// back from the stored header and body. If either the header or body could not
// be retrieved nil is returned.
//
// Note, due to concurrent download of header and block body the header and thus
// canonical hash can be stored in the database but the body data not (yet).
func GetBlock(db ethdb.Database, hash common.Hash, number uint64) *types.Block {
// Retrieve the block header and body contents
header := GetHeader(db, hash, number)