From 592f21f5b97e5b1e714f194ae90ab83e6547cf41 Mon Sep 17 00:00:00 2001
From: Determinant <ted.sybil@gmail.com>
Date: Wed, 14 Aug 2019 01:37:25 -0400
Subject: finish a full chain example (with p2p network)

---
 eth/backend.go | 19 +++++++++++++++----
 eth/config.go  | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+), 4 deletions(-)

(limited to 'eth')

diff --git a/eth/backend.go b/eth/backend.go
index b5f590e..12041de 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -409,6 +409,17 @@ func (s *Ethereum) SetEtherbase(etherbase common.Address) {
 // is already running, this method adjust the number of threads allowed to use
 // and updates the minimum price required by the transaction pool.
 func (s *Ethereum) StartMining(threads int) error {
+	// Update the thread count within the consensus engine
+	type threaded interface {
+		SetThreads(threads int)
+	}
+	if th, ok := s.engine.(threaded); ok {
+		log.Info("Updated mining threads", "threads", threads)
+		if threads == 0 {
+			threads = -1 // Disable the miner from within
+		}
+		th.SetThreads(threads)
+	}
 	// If the miner was not running, initialize it
 	if !s.IsMining() {
 		// Propagate the initial price point to the transaction pool
@@ -509,10 +520,10 @@ func (s *Ethereum) Stop() error {
 	s.bloomIndexer.Close()
 	s.blockchain.Stop()
 	s.engine.Close()
-	//s.protocolManager.Stop()
-	//if s.lesServer != nil {
-	//	s.lesServer.Stop()
-	//}
+	s.protocolManager.Stop()
+	if s.lesServer != nil {
+		s.lesServer.Stop()
+	}
 	s.txPool.Stop()
 	s.miner.Stop()
 	s.eventMux.Stop()
diff --git a/eth/config.go b/eth/config.go
index 6887872..3149c6f 100644
--- a/eth/config.go
+++ b/eth/config.go
@@ -24,6 +24,7 @@ import (
 	"runtime"
 	"time"
 
+    "github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus/ethash"
 	"github.com/ethereum/go-ethereum/core"
@@ -155,3 +156,34 @@ type Config struct {
 	// CheckpointOracle is the configuration for checkpoint oracle.
 	CheckpointOracle *params.CheckpointOracleConfig `toml:",omitempty"`
 }
+
+func MyDefaultConfig() Config {
+    config := DefaultConfig
+    chainConfig := &params.ChainConfig {
+        ChainID:             big.NewInt(42222),
+        HomesteadBlock:      big.NewInt(0),
+        DAOForkBlock:        big.NewInt(0),
+        DAOForkSupport:      true,
+        EIP150Block:         big.NewInt(0),
+        EIP150Hash:          common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
+        EIP155Block:         big.NewInt(0),
+        EIP158Block:         big.NewInt(0),
+        ByzantiumBlock:      big.NewInt(0),
+        ConstantinopleBlock: big.NewInt(0),
+        PetersburgBlock:     big.NewInt(0),
+        IstanbulBlock:       nil,
+        Ethash:              nil,
+    }
+    genBalance := big.NewInt(1000000000000000000)
+
+    config.Genesis = &core.Genesis{
+        Config:     chainConfig,
+        Nonce:      0,
+        Number:     0,
+        ExtraData:  hexutil.MustDecode("0x00"),
+        GasLimit:   100000000,
+        Difficulty: big.NewInt(0),
+        Alloc: core.GenesisAlloc{ common.Address{}: { Balance: genBalance }},
+    }
+    return config
+}
-- 
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