diff options
| -rw-r--r-- | consensus/clique/snapshot.go | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/consensus/clique/snapshot.go b/consensus/clique/snapshot.go index 9ebdb8df1..2333d6924 100644 --- a/consensus/clique/snapshot.go +++ b/consensus/clique/snapshot.go @@ -19,6 +19,7 @@ package clique import ( "bytes" "encoding/json" + "sort" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/types" @@ -56,6 +57,13 @@ type Snapshot struct { Tally map[common.Address]Tally `json:"tally"` // Current vote tally to avoid recalculating } +// signers implements the sort interface to allow sorting a list of addresses +type signers []common.Address + +func (s signers) Len() int { return len(s) } +func (s signers) Less(i, j int) bool { return bytes.Compare(s[i][:], s[j][:]) < 0 } +func (s signers) Swap(i, j int) { s[i], s[j] = s[j], s[i] } + // newSnapshot creates a new snapshot with the specified startup parameters. This // method does not initialize the set of recent signers, so only ever use if for // the genesis block. @@ -286,18 +294,12 @@ func (s *Snapshot) apply(headers []*types.Header) (*Snapshot, error) { // signers retrieves the list of authorized signers in ascending order. func (s *Snapshot) signers() []common.Address { - signers := make([]common.Address, 0, len(s.Signers)) - for signer := range s.Signers { - signers = append(signers, signer) - } - for i := 0; i < len(signers); i++ { - for j := i + 1; j < len(signers); j++ { - if bytes.Compare(signers[i][:], signers[j][:]) > 0 { - signers[i], signers[j] = signers[j], signers[i] - } - } + sigs := make([]common.Address, 0, len(s.Signers)) + for sig := range s.Signers { + sigs = append(sigs, sig) } - return signers + sort.Sort(signers(sigs)) + return sigs } // inturn returns if a signer at a given block height is in-turn or not. |