dex: add BlockDB, which implements consensus core's blockdb.BlockDatabase (#36)

1 files changed, 7 insertions, 0 deletions

diff --git a/core/rawdb/schema.go b/core/rawdb/schema.go
index ee1949112..9a820a578 100644
--- a/core/rawdb/schema.go
+++ b/core/rawdb/schema.go
@@ -53,6 +53,8 @@ var (
 	txLookupPrefix  = []byte("l") // txLookupPrefix + hash -> transaction/receipt lookup metadata
 	bloomBitsPrefix = []byte("B") // bloomBitsPrefix + bit (uint16 big endian) + section (uint64 big endian) + hash -> bloom bits
 
+	coreBlockPrefix = []byte("D")
+
 	preimagePrefix = []byte("secure-key-")      // preimagePrefix + hash -> preimage
 	configPrefix   = []byte("ethereum-config-") // config prefix for the db
 
@@ -113,6 +115,11 @@ func txLookupKey(hash common.Hash) []byte {
 	return append(txLookupPrefix, hash.Bytes()...)
 }
 
+// coreBlockKey = coreBlockPrefix + hash
+func coreBlockKey(hash common.Hash) []byte {
+	return append(coreBlockPrefix, hash.Bytes()...)
+}
+
 // bloomBitsKey = bloomBitsPrefix + bit (uint16 big endian) + section (uint64 big endian) + hash
 func bloomBitsKey(bit uint, section uint64, hash common.Hash) []byte {
 	key := append(append(bloomBitsPrefix, make([]byte, 10)...), hash.Bytes()...)