import: switch consensus core to gitlab.com/tangerine-network/tangerine-consensus

1 files changed, 100 insertions, 0 deletions

diff --git a/vendor/github.com/tangerine-network/tangerine-consensus/core/types/vote.go b/vendor/github.com/tangerine-network/tangerine-consensus/core/types/vote.go
new file mode 100644
index 000000000..015064541
--- /dev/null
+++ b/vendor/github.com/tangerine-network/tangerine-consensus/core/types/vote.go
@@ -0,0 +1,100 @@
+// Copyright 2018 The dexon-consensus Authors
+// This file is part of the dexon-consensus library.
+//
+// The dexon-consensus library is free software: you can redistribute it
+// and/or modify it under the terms of the GNU Lesser General Public License as
+// published by the Free Software Foundation, either version 3 of the License,
+// or (at your option) any later version.
+//
+// The dexon-consensus library is distributed in the hope that it will be
+// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
+// General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the dexon-consensus library. If not, see
+// <http://www.gnu.org/licenses/>.
+
+package types
+
+import (
+	"fmt"
+
+	"github.com/tangerine-network/tangerine-consensus/common"
+	"github.com/tangerine-network/tangerine-consensus/core/crypto"
+	cryptoDKG "github.com/tangerine-network/tangerine-consensus/core/crypto/dkg"
+)
+
+// VoteType is the type of vote.
+type VoteType byte
+
+// VoteType enum.
+const (
+	VoteInit VoteType = iota
+	VotePreCom
+	VoteCom
+	VoteFast
+	VoteFastCom
+	// Do not add any type below MaxVoteType.
+	MaxVoteType
+)
+
+// NullBlockHash is the blockHash for ⊥ value.
+var NullBlockHash common.Hash
+
+// SkipBlockHash is the blockHash for SKIP value.
+var SkipBlockHash common.Hash
+
+func init() {
+	for idx := range SkipBlockHash {
+		SkipBlockHash[idx] = 0xff
+	}
+}
+
+// VoteHeader is the header for vote, which can be used as map keys.
+type VoteHeader struct {
+	ProposerID NodeID      `json:"proposer_id"`
+	Type       VoteType    `json:"type"`
+	BlockHash  common.Hash `json:"block_hash"`
+	Period     uint64      `json:"period"`
+	Position   Position    `json:"position"`
+}
+
+// Vote is the vote structure defined in Crypto Shuffle Algorithm.
+type Vote struct {
+	VoteHeader       `json:"header"`
+	PartialSignature cryptoDKG.PartialSignature `json:"partial_signature"`
+	Signature        crypto.Signature           `json:"signature"`
+}
+
+func (v *Vote) String() string {
+	return fmt.Sprintf("Vote{VP:%s %s Period:%d Type:%d Hash:%s}",
+		v.ProposerID.String()[:6],
+		v.Position, v.Period, v.Type, v.BlockHash.String()[:6])
+}
+
+// NewVote constructs a Vote instance with header fields.
+func NewVote(t VoteType, hash common.Hash, period uint64) *Vote {
+	return &Vote{
+		VoteHeader: VoteHeader{
+			Type:      t,
+			BlockHash: hash,
+			Period:    period,
+		}}
+}
+
+// Clone returns a deep copy of a vote.
+func (v *Vote) Clone() *Vote {
+	return &Vote{
+		VoteHeader: VoteHeader{
+			ProposerID: v.ProposerID,
+			Type:       v.Type,
+			BlockHash:  v.BlockHash,
+			Period:     v.Period,
+			Position:   v.Position,
+		},
+		PartialSignature: cryptoDKG.PartialSignature(
+			crypto.Signature(v.PartialSignature).Clone()),
+		Signature: v.Signature.Clone(),
+	}
+}