Minor update

ethereum.go

@@ -5,13 +5,16 @@ import (
   "os"
   "os/signal"
   "flag"
+  "runtime"
 )
 
 const Debug = true
 
 var StartDBQueryInterface bool
+var StartMining bool
 func Init() {
   flag.BoolVar(&StartDBQueryInterface, "db", false, "start db query interface")
+  flag.BoolVar(&StartMining, "mine", false, "start dagger mining")
 
   flag.Parse()
 }
@@ -24,7 +27,7 @@ func RegisterInterupts(s *Server) {
   signal.Notify(c, os.Interrupt)
   go func() {
     for sig := range c {
-      fmt.Println("Shutting down (%v) ... \n", sig)
+      fmt.Printf("Shutting down (%v) ... \n", sig)
 
       s.Stop()
     }
@@ -32,6 +35,8 @@ func RegisterInterupts(s *Server) {
 }
 
 func main() {
+  runtime.GOMAXPROCS(runtime.NumCPU())
+
   InitFees()
 
   Init()
@@ -39,7 +44,25 @@ func main() {
   if StartDBQueryInterface {
     dbInterface := NewDBInterface()
     dbInterface.Start()
+  } else if StartMining {
+    dagger := &Dagger{}
+    seed := dagger.Search(BigPow(2, 36))
+
+    fmt.Println("dagger res = ", seed)
   } else {
-    Testing()
+    fmt.Println("[DBUG]: Starting Ethereum")
+    server, err := NewServer()
+
+    if err != nil {
+      fmt.Println("error NewServer:", err)
+      return
+    }
+
+    RegisterInterupts(server)
+
+    server.Start()
+
+    // Wait for shutdown
+    server.WaitForShutdown()
   }
 }

memory_database.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+  "fmt"
 )
 
 /*
@@ -23,3 +24,11 @@ func (db *MemDatabase) Put(key []byte, value []byte) {
 func (db *MemDatabase) Get(key []byte) ([]byte, error) {
   return db.db[string(key)], nil
 }
+
+func (db *MemDatabase) Print() {
+  for key, val := range db.db {
+    fmt.Printf("%x(%d):", key, len(key))
+    decoded := DecodeNode(val)
+    PrintSlice(decoded)
+  }
+}

server.go

@@ -5,11 +5,15 @@ import (
   "time"
 )
 
+var Db *LDBDatabase
+
 type Server struct {
   // Channel for shutting down the server
   shutdownChan chan bool
   // DB interface
   db          *LDBDatabase
+  // Block manager for processing new blocks and managing the block chain
+  blockManager *BlockManager
   // Peers (NYI)
   peers       *list.List
 }
@@ -20,8 +24,11 @@ func NewServer() (*Server, error) {
     return nil, err
   }
 
+  Db = db
+
   server := &Server{
     shutdownChan:    make(chan bool),
+    blockManager:    NewBlockManager(),
     db:              db,
     peers:           list.New(),
   }
@@ -32,9 +39,11 @@ func NewServer() (*Server, error) {
 // Start the server
 func (s *Server) Start() {
   // For now this function just blocks the main thread
-  for {
-    time.Sleep( time.Second )
-  }
+  go func() {
+    for {
+      time.Sleep( time.Second )
+    }
+  }()
 }
 
 func (s *Server) Stop() {

testing.go

@@ -1,7 +1,8 @@
 package main
+/*
 
 import (
-  "fmt"
+  _"fmt"
 )
 
 // This will eventually go away
@@ -15,18 +16,17 @@ func Testing() {
 
   tx := NewTransaction("\x00", 20, []string{"PUSH"})
   txData := tx.MarshalRlp()
-  fmt.Printf("%q\n", txData)
+  //fmt.Printf("%q\n", txData)
 
   copyTx := &Transaction{}
   copyTx.UnmarshalRlp(txData)
-  fmt.Println(tx)
-  fmt.Println(copyTx)
+  //fmt.Println(tx)
+  //fmt.Println(copyTx)
 
   tx2 := NewTransaction("\x00", 20, []string{"SET 10 6", "LD 10 10"})
 
   blck := CreateTestBlock([]*Transaction{tx2, tx})
 
   bm.ProcessBlock( blck )
-
-  fmt.Println("GenesisBlock:", GenisisBlock, "hash", string(GenisisBlock.Hash()))
 }
+*/

trie.go

@@ -36,6 +36,8 @@ func DecodeNode(data []byte) []string {
     }
 
     return strSlice
+  } else {
+    fmt.Printf("It wasn't a []. It's a %T\n", dec)
   }
 
   return nil
@@ -70,16 +72,6 @@ func (t *Trie) Get(key string) string {
  * State functions (shouldn't be needed directly).
  */
 
-// Wrapper around the regular db "Put" which generates a key and value
-func (t *Trie) Put(node interface{}) []byte {
-  enc := Encode(node)
-  sha := Sha256Bin(enc)
-
-  t.db.Put([]byte(sha), enc)
-
-  return sha
-}
-
 // Helper function for printing a node (using fetch, decode and slice printing)
 func (t *Trie) PrintNode(n string) {
   data, _ := t.db.Get([]byte(n))
@@ -133,6 +125,16 @@ func (t *Trie) UpdateState(node string, key []int, value string) string {
   return ""
 }
 
+// Wrapper around the regular db "Put" which generates a key and value
+func (t *Trie) Put(node interface{}) []byte {
+  enc := Encode(node)
+  var sha []byte
+  sha = Sha256Bin(enc)
+
+  t.db.Put([]byte(sha), enc)
+
+  return sha
+}
 
 func (t *Trie) InsertState(node string, key []int, value string) string {
   if len(key) == 0 {

util.go

@@ -6,6 +6,7 @@ import (
   "encoding/hex"
   _"fmt"
   _"math"
+  "github.com/obscuren/sha3"
 )
 
 func Uitoa(i uint32) string {
@@ -24,6 +25,14 @@ func Sha256Bin(data []byte) []byte {
   return hash[:]
 }
 
+func Sha3Bin(data []byte) []byte {
+  d := sha3.NewKeccak224()
+  d.Reset()
+  d.Write(data)
+
+  return d.Sum(nil)
+}
+
 // Helper function for comparing slices
 func CompareIntSlice(a, b []int) bool {
   if len(a) != len(b) {
@@ -48,3 +57,7 @@ func MatchingNibbleLength(a, b []int) int {
 
   return i
 }
+
+func Hex(d []byte) string {
+  return hex.EncodeToString(d)
+}

vm.go

@@ -11,29 +11,55 @@ import (
 
 // Op codes
 const (
-  oSTOP       int = 0x00
-  oADD        int = 0x01
-  oMUL        int = 0x02
-  oSUB        int = 0x03
-  oDIV        int = 0x04
-  oSDIV       int = 0x05
-  oMOD        int = 0x06
-  oSMOD       int = 0x07
-  oEXP        int = 0x08
-  oNEG        int = 0x09
-  oLT         int = 0x0a
-  oLE         int = 0x0b
-  oGT         int = 0x0c
-  oGE         int = 0x0d
-  oEQ         int = 0x0e
-  oNOT        int = 0x0f
-  oMYADDRESS  int = 0x10
-  oTXSENDER   int = 0x11
-
-
-  oPUSH       int = 0x30
-  oPOP        int = 0x31
-  oLOAD       int = 0x36
+  oSTOP             int = 0x00
+  oADD              int = 0x01
+  oMUL              int = 0x02
+  oSUB              int = 0x03
+  oDIV              int = 0x04
+  oSDIV             int = 0x05
+  oMOD              int = 0x06
+  oSMOD             int = 0x07
+  oEXP              int = 0x08
+  oNEG              int = 0x09
+  oLT               int = 0x0a
+  oLE               int = 0x0b
+  oGT               int = 0x0c
+  oGE               int = 0x0d
+  oEQ               int = 0x0e
+  oNOT              int = 0x0f
+  oMYADDRESS        int = 0x10
+  oTXSENDER         int = 0x11
+  oTXVALUE          int = 0x12
+  oTXFEE            int = 0x13
+  oTXDATAN          int = 0x14
+  oTXDATA           int = 0x15
+  oBLK_PREVHASH     int = 0x16
+  oBLK_COINBASE     int = 0x17
+  oBLK_TIMESTAMP    int = 0x18
+  oBLK_NUMBER       int = 0x19
+  oBLK_DIFFICULTY   int = 0x1a
+  oSHA256           int = 0x20
+  oRIPEMD160        int = 0x21
+  oECMUL            int = 0x22
+  oECADD            int = 0x23
+  oECSIGN           int = 0x24
+  oECRECOVER        int = 0x25
+  oECVALID          int = 0x26
+  oPUSH             int = 0x30
+  oPOP              int = 0x31
+  oDUP              int = 0x32
+  oDUPN             int = 0x33
+  oSWAP             int = 0x34
+  oSWAPN            int = 0x35
+  oLOAD             int = 0x36
+  oSTORE            int = 0x37
+  oJMP              int = 0x40
+  oJMPI             int = 0x41
+  oIND              int = 0x42
+  oEXTRO            int = 0x50
+  oBALANCE          int = 0x51
+  oMKTX             int = 0x60
+  oSUICIDE          int = 0xff
 )
 
 type OpType int