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authorFelix Lange <fjl@users.noreply.github.com>2017-06-27 21:57:06 +0800
committerGitHub <noreply@github.com>2017-06-27 21:57:06 +0800
commit9e5f03b6c487175cc5aa1224e5e12fd573f483a7 (patch)
tree475e573ff6c7e77cd069a2f6238afdb27d4bce43 /light/odr.go
parentbb366271fe33cf87b462dc5a25ac6c448ac6d2e1 (diff)
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core/state: access trie through Database interface, track errors (#14589)
With this commit, core/state's access to the underlying key/value database is mediated through an interface. Database errors are tracked in StateDB and returned by CommitTo or the new Error method. Motivation for this change: We can remove the light client's duplicated copy of core/state. The light client now supports node iteration, so tracing and storage enumeration can work with the light client (not implemented in this commit).
Diffstat (limited to 'light/odr.go')
-rw-r--r--light/odr.go8
1 files changed, 4 insertions, 4 deletions
diff --git a/light/odr.go b/light/odr.go
index ca6364f28..d19a488f6 100644
--- a/light/odr.go
+++ b/light/odr.go
@@ -34,7 +34,7 @@ import (
// service is not required.
var NoOdr = context.Background()
-// OdrBackend is an interface to a backend service that handles ODR retrievals
+// OdrBackend is an interface to a backend service that handles ODR retrievals type
type OdrBackend interface {
Database() ethdb.Database
Retrieve(ctx context.Context, req OdrRequest) error
@@ -66,11 +66,11 @@ func StateTrieID(header *types.Header) *TrieID {
// StorageTrieID returns a TrieID for a contract storage trie at a given account
// of a given state trie. It also requires the root hash of the trie for
// checking Merkle proofs.
-func StorageTrieID(state *TrieID, addr common.Address, root common.Hash) *TrieID {
+func StorageTrieID(state *TrieID, addrHash, root common.Hash) *TrieID {
return &TrieID{
BlockHash: state.BlockHash,
BlockNumber: state.BlockNumber,
- AccKey: crypto.Keccak256(addr[:]),
+ AccKey: addrHash[:],
Root: root,
}
}
@@ -102,7 +102,7 @@ func storeProof(db ethdb.Database, proof []rlp.RawValue) {
// CodeRequest is the ODR request type for retrieving contract code
type CodeRequest struct {
OdrRequest
- Id *TrieID
+ Id *TrieID // references storage trie of the account
Hash common.Hash
Data []byte
}