cmd, consensus, core, miner: instatx clique for --dev (#15323)

* cmd, consensus, core, miner: instatx clique for --dev

* cmd, consensus, clique: support configurable --dev block times

* cmd, core: allow --dev to use persistent storage too

1 files changed, 26 insertions, 10 deletions

diff --git a/core/genesis.go b/core/genesis.go
index fd6ed6115..26b1c9f63 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -151,7 +151,7 @@ func (e *GenesisMismatchError) Error() string {
 // The returned chain configuration is never nil.
 func SetupGenesisBlock(db ethdb.Database, genesis *Genesis) (*params.ChainConfig, common.Hash, error) {
 	if genesis != nil && genesis.Config == nil {
-		return params.AllProtocolChanges, common.Hash{}, errGenesisNoConfig
+		return params.AllEthashProtocolChanges, common.Hash{}, errGenesisNoConfig
 	}
 
 	// Just commit the new block if there is no stored genesis block.
@@ -216,7 +216,7 @@ func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig {
 	case ghash == params.TestnetGenesisHash:
 		return params.TestnetChainConfig
 	default:
-		return params.AllProtocolChanges
+		return params.AllEthashProtocolChanges
 	}
 }
 
@@ -285,7 +285,7 @@ func (g *Genesis) Commit(db ethdb.Database) (*types.Block, error) {
 	}
 	config := g.Config
 	if config == nil {
-		config = params.AllProtocolChanges
+		config = params.AllEthashProtocolChanges
 	}
 	return block, WriteChainConfig(db, block.Hash(), config)
 }
@@ -342,14 +342,30 @@ func DefaultRinkebyGenesisBlock() *Genesis {
 	}
 }
 
-// DevGenesisBlock returns the 'geth --dev' genesis block.
-func DevGenesisBlock() *Genesis {
+// DeveloperGenesisBlock returns the 'geth --dev' genesis block. Note, this must
+// be seeded with the
+func DeveloperGenesisBlock(period uint64, faucet common.Address) *Genesis {
+	// Override the default period to the user requested one
+	config := *params.AllCliqueProtocolChanges
+	config.Clique.Period = period
+
+	// Assemble and return the genesis with the precompiles and faucet pre-funded
 	return &Genesis{
-		Config:     params.AllProtocolChanges,
-		Nonce:      42,
-		GasLimit:   4712388,
-		Difficulty: big.NewInt(131072),
-		Alloc:      decodePrealloc(devAllocData),
+		Config:     &config,
+		ExtraData:  append(append(make([]byte, 32), faucet[:]...), make([]byte, 65)...),
+		GasLimit:   6283185,
+		Difficulty: big.NewInt(1),
+		Alloc: map[common.Address]GenesisAccount{
+			common.BytesToAddress([]byte{1}): GenesisAccount{Balance: big.NewInt(1)}, // ECRecover
+			common.BytesToAddress([]byte{2}): GenesisAccount{Balance: big.NewInt(1)}, // SHA256
+			common.BytesToAddress([]byte{3}): GenesisAccount{Balance: big.NewInt(1)}, // RIPEMD
+			common.BytesToAddress([]byte{4}): GenesisAccount{Balance: big.NewInt(1)}, // Identity
+			common.BytesToAddress([]byte{5}): GenesisAccount{Balance: big.NewInt(1)}, // ModExp
+			common.BytesToAddress([]byte{6}): GenesisAccount{Balance: big.NewInt(1)}, // ECAdd
+			common.BytesToAddress([]byte{7}): GenesisAccount{Balance: big.NewInt(1)}, // ECScalarMul
+			common.BytesToAddress([]byte{8}): GenesisAccount{Balance: big.NewInt(1)}, // ECPairing
+			faucet: GenesisAccount{Balance: new(big.Int).Sub(new(big.Int).Lsh(big.NewInt(1), 256), big.NewInt(9))},
+		},
 	}
 }