core: vm: governance: remove maxInterval

8 files changed, 29 insertions, 83 deletions

diff --git a/core/vm/governance.go b/core/vm/governance.go
index e2948c25b..f940efd14 100644
--- a/core/vm/governance.go
+++ b/core/vm/governance.go
@@ -364,20 +364,6 @@ const abiJSON = `
   },
   {
     "constant": true,
-    "inputs": [],
-    "name": "maxBlockInterval",
-    "outputs": [
-      {
-        "name": "",
-        "type": "uint256"
-      }
-    ],
-    "payable": false,
-    "stateMutability": "view",
-    "type": "function"
-  },
-  {
-    "constant": true,
     "inputs": [
       {
         "name": "",
@@ -478,10 +464,6 @@ const abiJSON = `
       {
         "name": "MinBlockInterval",
         "type": "uint256"
-      },
-      {
-        "name": "MaxBlockInterval",
-        "type": "uint256"
       }
     ],
     "name": "updateConfiguration",
@@ -844,12 +826,6 @@ func RunGovernanceContract(evm *EVM, input []byte, contract *Contract) (
 			return nil, errExecutionReverted
 		}
 		return res, nil
-	case "maxBlockInterval":
-		res, err := method.Outputs.Pack(g.state.MaxBlockInterval())
-		if err != nil {
-			return nil, errExecutionReverted
-		}
-		return res, nil
 	case "minBlockInterval":
 		res, err := method.Outputs.Pack(g.state.MinBlockInterval())
 		if err != nil {
@@ -943,7 +919,6 @@ const (
 	dkgSetSizeLoc
 	roundIntervalLoc
 	minBlockIntervalLoc
-	maxBlockIntervalLoc
 )
 
 // State manipulation helper fro the governance contract.
@@ -1322,11 +1297,6 @@ func (s *GovernanceStateHelper) MinBlockInterval() *big.Int {
 	return s.getStateBigInt(big.NewInt(minBlockIntervalLoc))
 }
 
-// uint256 public maxBlockInterval;
-func (s *GovernanceStateHelper) MaxBlockInterval() *big.Int {
-	return s.getStateBigInt(big.NewInt(maxBlockIntervalLoc))
-}
-
 // Stake is a helper function for creating genesis state.
 func (s *GovernanceStateHelper) Stake(addr common.Address, publicKey []byte, staked *big.Int) {
 	offset := s.NodesLength()
@@ -1352,7 +1322,6 @@ func (s *GovernanceStateHelper) Configuration() *params.DexconConfig {
 		DKGSetSize:       uint32(s.getStateBigInt(big.NewInt(dkgSetSizeLoc)).Uint64()),
 		RoundInterval:    s.getStateBigInt(big.NewInt(roundIntervalLoc)).Uint64(),
 		MinBlockInterval: s.getStateBigInt(big.NewInt(minBlockIntervalLoc)).Uint64(),
-		MaxBlockInterval: s.getStateBigInt(big.NewInt(maxBlockIntervalLoc)).Uint64(),
 	}
 }
 
@@ -1369,7 +1338,6 @@ func (s *GovernanceStateHelper) UpdateConfiguration(cfg *params.DexconConfig) {
 	s.setStateBigInt(big.NewInt(dkgSetSizeLoc), big.NewInt(int64(cfg.DKGSetSize)))
 	s.setStateBigInt(big.NewInt(roundIntervalLoc), big.NewInt(int64(cfg.RoundInterval)))
 	s.setStateBigInt(big.NewInt(minBlockIntervalLoc), big.NewInt(int64(cfg.MinBlockInterval)))
-	s.setStateBigInt(big.NewInt(maxBlockIntervalLoc), big.NewInt(int64(cfg.MaxBlockInterval)))
 }
 
 // event ConfigurationChanged();
diff --git a/dex/governance.go b/dex/governance.go
index 61dddf0e6..766920a62 100644
--- a/dex/governance.go
+++ b/dex/governance.go
@@ -100,7 +100,6 @@ func (d *DexconGovernance) Configuration(round uint64) *coreTypes.Config {
 		DKGSetSize:       c.DKGSetSize,
 		RoundInterval:    time.Duration(c.RoundInterval) * time.Millisecond,
 		MinBlockInterval: time.Duration(c.MinBlockInterval) * time.Millisecond,
-		MaxBlockInterval: time.Duration(c.MaxBlockInterval) * time.Millisecond,
 	}
 }
 
diff --git a/params/config.go b/params/config.go
index 11d25f9ef..744be496b 100644
--- a/params/config.go
+++ b/params/config.go
@@ -65,7 +65,6 @@ var (
 			DKGSetSize:       4,
 			RoundInterval:    99999999999,
 			MinBlockInterval: 900,
-			MaxBlockInterval: 1100,
 		},
 	}
 
@@ -104,7 +103,6 @@ var (
 			DKGSetSize:       4,
 			RoundInterval:    99999999999,
 			MinBlockInterval: 900,
-			MaxBlockInterval: 1100,
 		},
 	}
 
@@ -214,7 +212,6 @@ type DexconConfig struct {
 	DKGSetSize       uint32         `json:"dkgSetSize"`
 	RoundInterval    uint64         `json:"roundInterval"`
 	MinBlockInterval uint64         `json:"minBlockInterval"`
-	MaxBlockInterval uint64         `json:"maxBlockInterval"`
 }
 
 type dexconConfigSpecMarshaling struct {
@@ -223,7 +220,7 @@ type dexconConfigSpecMarshaling struct {
 
 // String implements the stringer interface, returning the consensus engine details.
 func (d *DexconConfig) String() string {
-	return fmt.Sprintf("{GenesisCRSText: %v Owner: %v BlockReward: %v BlockGasLimit: %v NumChains: %v LambdaBA: %v LambdaDKG: %v K: %v PhiRatio: %v NotarySetSize: %v DKGSetSize: %v RoundInterval: %v MinBlockInterval: %v MaxBlockInterval: %v BlockReward: %v",
+	return fmt.Sprintf("{GenesisCRSText: %v Owner: %v BlockReward: %v BlockGasLimit: %v NumChains: %v LambdaBA: %v LambdaDKG: %v K: %v PhiRatio: %v NotarySetSize: %v DKGSetSize: %v RoundInterval: %v MinBlockInterval: %v",
 		d.GenesisCRSText,
 		d.Owner,
 		d.BlockReward,
@@ -237,7 +234,6 @@ func (d *DexconConfig) String() string {
 		d.DKGSetSize,
 		d.RoundInterval,
 		d.MinBlockInterval,
-		d.MaxBlockInterval,
 	)
 }
 
diff --git a/params/gen_dexcon_config.go b/params/gen_dexcon_config.go
index f378b4588..e1be574c0 100644
--- a/params/gen_dexcon_config.go
+++ b/params/gen_dexcon_config.go
@@ -28,7 +28,6 @@ func (d DexconConfig) MarshalJSON() ([]byte, error) {
 		DKGSetSize       uint32                `json:"dkgSetSize"`
 		RoundInterval    uint64                `json:"roundInterval"`
 		MinBlockInterval uint64                `json:"minBlockInterval"`
-		MaxBlockInterval uint64                `json:"maxBlockInterval"`
 	}
 	var enc DexconConfig
 	enc.GenesisCRSText = d.GenesisCRSText
@@ -44,7 +43,6 @@ func (d DexconConfig) MarshalJSON() ([]byte, error) {
 	enc.DKGSetSize = d.DKGSetSize
 	enc.RoundInterval = d.RoundInterval
 	enc.MinBlockInterval = d.MinBlockInterval
-	enc.MaxBlockInterval = d.MaxBlockInterval
 	return json.Marshal(&enc)
 }
 
@@ -64,7 +62,6 @@ func (d *DexconConfig) UnmarshalJSON(input []byte) error {
 		DKGSetSize       *uint32               `json:"dkgSetSize"`
 		RoundInterval    *uint64               `json:"roundInterval"`
 		MinBlockInterval *uint64               `json:"minBlockInterval"`
-		MaxBlockInterval *uint64               `json:"maxBlockInterval"`
 	}
 	var dec DexconConfig
 	if err := json.Unmarshal(input, &dec); err != nil {
@@ -109,8 +106,5 @@ func (d *DexconConfig) UnmarshalJSON(input []byte) error {
 	if dec.MinBlockInterval != nil {
 		d.MinBlockInterval = *dec.MinBlockInterval
 	}
-	if dec.MaxBlockInterval != nil {
-		d.MaxBlockInterval = *dec.MaxBlockInterval
-	}
 	return nil
 }
diff --git a/vendor/github.com/dexon-foundation/dexon-consensus/core/consensus.go b/vendor/github.com/dexon-foundation/dexon-consensus/core/consensus.go
index 7e6934f45..cec3c4f64 100644
--- a/vendor/github.com/dexon-foundation/dexon-consensus/core/consensus.go
+++ b/vendor/github.com/dexon-foundation/dexon-consensus/core/consensus.go
@@ -367,6 +367,9 @@ func NewConsensus(
 	}
 
 	validLeader := func(block *types.Block) bool {
+		if block.Timestamp.After(time.Now()) {
+			return false
+		}
 		return lattice.SanityCheck(block) == nil
 	}
 
diff --git a/vendor/github.com/dexon-foundation/dexon-consensus/core/lattice-data.go b/vendor/github.com/dexon-foundation/dexon-consensus/core/lattice-data.go
index 564675730..ca246612d 100644
--- a/vendor/github.com/dexon-foundation/dexon-consensus/core/lattice-data.go
+++ b/vendor/github.com/dexon-foundation/dexon-consensus/core/lattice-data.go
@@ -73,28 +73,24 @@ type latticeDataConfig struct {
 	// Block interval specifies reasonable time difference between
 	// parent/child blocks.
 	minBlockTimeInterval time.Duration
-	maxBlockTimeInterval time.Duration
 }
 
 // Initiate latticeDataConfig from types.Config.
 func (config *latticeDataConfig) fromConfig(roundID uint64, cfg *types.Config) {
 	config.numChains = cfg.NumChains
 	config.minBlockTimeInterval = cfg.MinBlockInterval
-	config.maxBlockTimeInterval = cfg.MaxBlockInterval
 	config.setupRoundBasedFields(roundID, cfg)
 }
 
 // Check if timestamp of a block is valid according to a reference time.
 func (config *latticeDataConfig) isValidBlockTime(
 	b *types.Block, ref time.Time) bool {
-	return !(b.Timestamp.Before(ref.Add(config.minBlockTimeInterval)) ||
-		b.Timestamp.After(ref.Add(config.maxBlockTimeInterval)))
+	return !b.Timestamp.Before(ref.Add(config.minBlockTimeInterval))
 }
 
 // isValidGenesisBlockTime check if a timestamp is valid for a genesis block.
 func (config *latticeDataConfig) isValidGenesisBlockTime(b *types.Block) bool {
-	return !(b.Timestamp.Before(config.roundBeginTime) || b.Timestamp.After(
-		config.roundBeginTime.Add(config.maxBlockTimeInterval)))
+	return !b.Timestamp.Before(config.roundBeginTime)
 }
 
 // newGenesisLatticeDataConfig constructs a latticeDataConfig instance.
@@ -380,11 +376,11 @@ func (data *latticeData) addFinalizedBlock(
 //    genesis block.
 func (data *latticeData) prepareBlock(b *types.Block) error {
 	var (
-		minTimestamp, maxTimestamp time.Time
-		config                     *latticeDataConfig
-		acks                       common.Hashes
-		bindTip                    bool
-		chainTip                   *types.Block
+		minTimestamp time.Time
+		config       *latticeDataConfig
+		acks         common.Hashes
+		bindTip      bool
+		chainTip     *types.Block
 	)
 	if config = data.getConfig(b.Position.Round); config == nil {
 		return ErrUnknownRoundID
@@ -425,7 +421,6 @@ func (data *latticeData) prepareBlock(b *types.Block) error {
 	// parent block and bound config.
 	if bindTip {
 		minTimestamp = chainTip.Timestamp.Add(config.minBlockTimeInterval)
-		maxTimestamp = chainTip.Timestamp.Add(config.maxBlockTimeInterval)
 		// When a chain is removed and added back, the reference block
 		// of previous round can't be used as parent block.
 		b.ParentHash = chainTip.Hash
@@ -434,13 +429,10 @@ func (data *latticeData) prepareBlock(b *types.Block) error {
 		// Discontinuous round ID detected, another fresh start of
 		// new round.
 		minTimestamp = config.roundBeginTime
-		maxTimestamp = config.roundBeginTime.Add(config.maxBlockTimeInterval)
 	}
 	// Fix timestamp if the given one is invalid.
 	if b.Timestamp.Before(minTimestamp) {
 		b.Timestamp = minTimestamp
-	} else if b.Timestamp.After(maxTimestamp) {
-		b.Timestamp = maxTimestamp
 	}
 	// Setup acks fields.
 	for _, status := range data.chains {
diff --git a/vendor/github.com/dexon-foundation/dexon-consensus/core/types/config.go b/vendor/github.com/dexon-foundation/dexon-consensus/core/types/config.go
index 975eec9cb..c9d31f8c4 100644
--- a/vendor/github.com/dexon-foundation/dexon-consensus/core/types/config.go
+++ b/vendor/github.com/dexon-foundation/dexon-consensus/core/types/config.go
@@ -43,7 +43,6 @@ type Config struct {
 	// Time related.
 	RoundInterval    time.Duration
 	MinBlockInterval time.Duration
-	MaxBlockInterval time.Duration
 }
 
 // Clone return a copied configuration.
@@ -58,7 +57,6 @@ func (c *Config) Clone() *Config {
 		DKGSetSize:       c.DKGSetSize,
 		RoundInterval:    c.RoundInterval,
 		MinBlockInterval: c.MinBlockInterval,
-		MaxBlockInterval: c.MaxBlockInterval,
 	}
 }
 
@@ -90,9 +88,6 @@ func (c *Config) Bytes() []byte {
 	binaryMinBlockInterval := make([]byte, 8)
 	binary.LittleEndian.PutUint64(binaryMinBlockInterval,
 		uint64(c.MinBlockInterval.Nanoseconds()))
-	binaryMaxBlockInterval := make([]byte, 8)
-	binary.LittleEndian.PutUint64(binaryMaxBlockInterval,
-		uint64(c.MaxBlockInterval.Nanoseconds()))
 
 	enc := make([]byte, 0, 40)
 	enc = append(enc, binaryNumChains...)
@@ -104,6 +99,5 @@ func (c *Config) Bytes() []byte {
 	enc = append(enc, binaryDKGSetSize...)
 	enc = append(enc, binaryRoundInterval...)
 	enc = append(enc, binaryMinBlockInterval...)
-	enc = append(enc, binaryMaxBlockInterval...)
 	return enc
 }
diff --git a/vendor/vendor.json b/vendor/vendor.json
index a5b6e6a60..7eec125ec 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -105,50 +105,50 @@
 		{
 			"checksumSHA1": "ev84RyegNbt2Pr/sK26LK9LoQNI=",
 			"path": "github.com/dexon-foundation/dexon-consensus/common",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
-			"checksumSHA1": "O/LHWlFbdYp+dJDcuUHjIiBGyK4=",
+			"checksumSHA1": "0r8fTQxyg8QYnU7bvwuRvy1Vme8=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
 			"checksumSHA1": "vNsaBvsrXJF+W6K5DCLpgy1rUZY=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core/blockdb",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
 			"checksumSHA1": "tQSbYCu5P00lUhKsx3IbBZCuSLY=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core/crypto",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
 			"checksumSHA1": "p2jOAulavUU2xyj018pYPHlj8XA=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core/crypto/dkg",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
 			"checksumSHA1": "6Pf6caC8LTNCI7IflFmglKYnxYo=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core/crypto/ecdsa",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
-			"checksumSHA1": "h7dAzmB5HttApz3pSlgzNP82TqE=",
+			"checksumSHA1": "Zxp6rFW4SLz4ZSITYbyrm/5jHDg=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core/types",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
 			"checksumSHA1": "ovChyW9OfDGnk/7CDAR+A5vJymc=",
 			"path": "github.com/dexon-foundation/dexon-consensus/core/types/dkg",
-			"revision": "f521279b0d3d33e072d0dc439288fa16cbbf34d3",
-			"revisionTime": "2018-11-02T03:41:28Z"
+			"revision": "117e7b00aeb314e5201a6e82b606385370a86ee4",
+			"revisionTime": "2018-11-02T05:42:54Z"
 		},
 		{
 			"checksumSHA1": "TAkwduKZqLyimyTPPWIllZWYFuE=",