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use ethreact.Event and ethreact.ReactorEngine

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This commit is contained in:
zelig 2014-07-15 01:11:06 +01:00
parent 0ecc5c815e
commit 1735ec0362
6 changed files with 18 additions and 129 deletions
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5
ethchain/dagger.go
View File

@ -3,6 +3,7 @@ package ethchain
import (
"github.com/ethereum/eth-go/ethcrypto"
"github.com/ethereum/eth-go/ethlog"
"github.com/ethereum/eth-go/ethreact"
"github.com/ethereum/eth-go/ethutil"
"github.com/obscuren/sha3"
"hash"
@ -14,7 +15,7 @@ import (
var powlogger = ethlog.NewLogger("POW")
type PoW interface {
Search(block *Block, reactChan chan ethutil.React) []byte
Search(block *Block, reactChan chan ethreact.Event) []byte
Verify(hash []byte, diff *big.Int, nonce []byte) bool
}
@ -22,7 +23,7 @@ type EasyPow struct {
hash *big.Int
}
func (pow *EasyPow) Search(block *Block, reactChan chan ethutil.React) []byte {
func (pow *EasyPow) Search(block *Block, reactChan chan ethreact.Event) []byte {
r := rand.New(rand.NewSource(time.Now().UnixNano()))
hash := block.HashNoNonce()
diff := block.Difficulty

3
ethchain/state_manager.go
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@ -6,6 +6,7 @@ import (
"fmt"
"github.com/ethereum/eth-go/ethcrypto"
"github.com/ethereum/eth-go/ethlog"
"github.com/ethereum/eth-go/ethreact"
"github.com/ethereum/eth-go/ethtrie"
"github.com/ethereum/eth-go/ethutil"
"github.com/ethereum/eth-go/ethwire"
@ -36,7 +37,7 @@ type EthManager interface {
BlockChain() *BlockChain
TxPool() *TxPool
Broadcast(msgType ethwire.MsgType, data []interface{})
Reactor() *ethutil.ReactorEngine
Reactor() *ethreact.ReactorEngine
PeerCount() int
IsMining() bool
IsListening() bool

10
ethereum.go
View File

@ -6,6 +6,7 @@ import (
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethcrypto"
"github.com/ethereum/eth-go/ethlog"
"github.com/ethereum/eth-go/ethreact"
"github.com/ethereum/eth-go/ethrpc"
"github.com/ethereum/eth-go/ethutil"
"github.com/ethereum/eth-go/ethwire"
@ -73,7 +74,7 @@ type Ethereum struct {
listening bool
reactor *ethutil.ReactorEngine
reactor *ethreact.ReactorEngine
RpcServer *ethrpc.JsonRpcServer
@ -108,7 +109,7 @@ func New(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager
keyManager: keyManager,
clientIdentity: clientIdentity,
}
ethereum.reactor = ethutil.NewReactorEngine()
ethereum.reactor = ethreact.New()
ethereum.txPool = ethchain.NewTxPool(ethereum)
ethereum.blockChain = ethchain.NewBlockChain(ethereum)
@ -120,7 +121,7 @@ func New(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager
return ethereum, nil
}
func (s *Ethereum) Reactor() *ethutil.ReactorEngine {
func (s *Ethereum) Reactor() *ethreact.ReactorEngine {
return s.reactor
}
@ -352,6 +353,7 @@ func (s *Ethereum) ReapDeadPeerHandler() {
// Start the ethereum
func (s *Ethereum) Start(seed bool) {
s.reactor.Start()
// Bind to addr and port
ln, err := net.Listen("tcp", ":"+s.Port)
if err != nil {
@ -462,6 +464,8 @@ func (s *Ethereum) Stop() {
}
s.txPool.Stop()
s.stateManager.Stop()
s.reactor.Flush()
s.reactor.Stop()
ethlogger.Infoln("Server stopped")
close(s.shutdownChan)

12
ethminer/miner.go
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@ -4,7 +4,7 @@ import (
"bytes"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethlog"
"github.com/ethereum/eth-go/ethutil"
"github.com/ethereum/eth-go/ethreact"
"github.com/ethereum/eth-go/ethwire"
"sort"
)
@ -15,19 +15,19 @@ type Miner struct {
pow ethchain.PoW
ethereum ethchain.EthManager
coinbase []byte
reactChan chan ethutil.React
reactChan chan ethreact.Event
txs ethchain.Transactions
uncles []*ethchain.Block
block *ethchain.Block
powChan chan []byte
powQuitChan chan ethutil.React
powQuitChan chan ethreact.Event
quitChan chan bool
}
func NewDefaultMiner(coinbase []byte, ethereum ethchain.EthManager) Miner {
reactChan := make(chan ethutil.React, 1) // This is the channel that receives 'updates' when ever a new transaction or block comes in
powChan := make(chan []byte, 1) // This is the channel that receives valid sha hases for a given block
powQuitChan := make(chan ethutil.React, 1) // This is the channel that can exit the miner thread
reactChan := make(chan ethreact.Event, 1) // This is the channel that receives 'updates' when ever a new transaction or block comes in
powChan := make(chan []byte, 1) // This is the channel that receives valid sha hases for a given block
powQuitChan := make(chan ethreact.Event, 1) // This is the channel that can exit the miner thread
quitChan := make(chan bool, 1)
ethereum.Reactor().Subscribe("newBlock", reactChan)

87
ethutil/reactor.go
View File

@ -1,87 +0,0 @@
package ethutil
import (
"sync"
)
type ReactorEvent struct {
mut sync.Mutex
event string
chans []chan React
}
// Post the specified reactor resource on the channels
// currently subscribed
func (e *ReactorEvent) Post(react React) {
e.mut.Lock()
defer e.mut.Unlock()
for _, ch := range e.chans {
go func(ch chan React) {
ch <- react
}(ch)
}
}
// Add a subscriber to this event
func (e *ReactorEvent) Add(ch chan React) {
e.mut.Lock()
defer e.mut.Unlock()
e.chans = append(e.chans, ch)
}
// Remove a subscriber
func (e *ReactorEvent) Remove(ch chan React) {
e.mut.Lock()
defer e.mut.Unlock()
for i, c := range e.chans {
if c == ch {
e.chans = append(e.chans[:i], e.chans[i+1:]...)
}
}
}
// Basic reactor resource
type React struct {
Resource interface{}
Event string
}
// The reactor basic engine. Acts as bridge
// between the events and the subscribers/posters
type ReactorEngine struct {
patterns map[string]*ReactorEvent
}
func NewReactorEngine() *ReactorEngine {
return &ReactorEngine{patterns: make(map[string]*ReactorEvent)}
}
// Subscribe a channel to the specified event
func (reactor *ReactorEngine) Subscribe(event string, ch chan React) {
ev := reactor.patterns[event]
// Create a new event if one isn't available
if ev == nil {
ev = &ReactorEvent{event: event}
reactor.patterns[event] = ev
}
// Add the channel to reactor event handler
ev.Add(ch)
}
func (reactor *ReactorEngine) Unsubscribe(event string, ch chan React) {
ev := reactor.patterns[event]
if ev != nil {
ev.Remove(ch)
}
}
func (reactor *ReactorEngine) Post(event string, resource interface{}) {
ev := reactor.patterns[event]
if ev != nil {
ev.Post(React{Resource: resource, Event: event})
}
}

30
ethutil/reactor_test.go
View File

@ -1,30 +0,0 @@
package ethutil
import "testing"
func TestReactorAdd(t *testing.T) {
engine := NewReactorEngine()
ch := make(chan React)
engine.Subscribe("test", ch)
if len(engine.patterns) != 1 {
t.Error("Expected patterns to be 1, got", len(engine.patterns))
}
}
func TestReactorEvent(t *testing.T) {
engine := NewReactorEngine()
// Buffer 1, so it doesn't block for this test
ch := make(chan React, 1)
engine.Subscribe("test", ch)
engine.Post("test", "hello")
value := <-ch
if val, ok := value.Resource.(string); ok {
if val != "hello" {
t.Error("Expected Resource to be 'hello', got", val)
}
} else {
t.Error("Unable to cast")
}
}