forked from cerc-io/plugeth
Merge pull request #1932 from fjl/gpo-defootgunize
eth, xeth: fix GasPriceOracle goroutine leak
This commit is contained in:
commit
2e4fdce743
107
eth/gasprice.go
107
eth/gasprice.go
@ -23,49 +23,66 @@ import (
|
||||
|
||||
"github.com/ethereum/go-ethereum/core"
|
||||
"github.com/ethereum/go-ethereum/core/types"
|
||||
"github.com/ethereum/go-ethereum/event"
|
||||
"github.com/ethereum/go-ethereum/logger"
|
||||
"github.com/ethereum/go-ethereum/logger/glog"
|
||||
)
|
||||
|
||||
const gpoProcessPastBlocks = 100
|
||||
const (
|
||||
gpoProcessPastBlocks = 100
|
||||
|
||||
// for testing
|
||||
gpoDefaultBaseCorrectionFactor = 110
|
||||
gpoDefaultMinGasPrice = 10000000000000
|
||||
)
|
||||
|
||||
type blockPriceInfo struct {
|
||||
baseGasPrice *big.Int
|
||||
}
|
||||
|
||||
// GasPriceOracle recommends gas prices based on the content of recent
|
||||
// blocks.
|
||||
type GasPriceOracle struct {
|
||||
eth *Ethereum
|
||||
chain *core.BlockChain
|
||||
events event.Subscription
|
||||
eth *Ethereum
|
||||
initOnce sync.Once
|
||||
minPrice *big.Int
|
||||
lastBaseMutex sync.Mutex
|
||||
lastBase *big.Int
|
||||
|
||||
// state of listenLoop
|
||||
blocks map[uint64]*blockPriceInfo
|
||||
firstProcessed, lastProcessed uint64
|
||||
lastBaseMutex sync.Mutex
|
||||
lastBase, minBase *big.Int
|
||||
minBase *big.Int
|
||||
}
|
||||
|
||||
func NewGasPriceOracle(eth *Ethereum) (self *GasPriceOracle) {
|
||||
self = &GasPriceOracle{}
|
||||
self.blocks = make(map[uint64]*blockPriceInfo)
|
||||
self.eth = eth
|
||||
self.chain = eth.blockchain
|
||||
self.events = eth.EventMux().Subscribe(
|
||||
core.ChainEvent{},
|
||||
core.ChainSplitEvent{},
|
||||
)
|
||||
|
||||
minbase := new(big.Int).Mul(self.eth.GpoMinGasPrice, big.NewInt(100))
|
||||
minbase = minbase.Div(minbase, big.NewInt(int64(self.eth.GpobaseCorrectionFactor)))
|
||||
self.minBase = minbase
|
||||
|
||||
self.processPastBlocks()
|
||||
go self.listenLoop()
|
||||
return
|
||||
// NewGasPriceOracle returns a new oracle.
|
||||
func NewGasPriceOracle(eth *Ethereum) *GasPriceOracle {
|
||||
minprice := eth.GpoMinGasPrice
|
||||
if minprice == nil {
|
||||
minprice = big.NewInt(gpoDefaultMinGasPrice)
|
||||
}
|
||||
minbase := new(big.Int).Mul(minprice, big.NewInt(100))
|
||||
if eth.GpobaseCorrectionFactor > 0 {
|
||||
minbase = minbase.Div(minbase, big.NewInt(int64(eth.GpobaseCorrectionFactor)))
|
||||
}
|
||||
return &GasPriceOracle{
|
||||
eth: eth,
|
||||
blocks: make(map[uint64]*blockPriceInfo),
|
||||
minBase: minbase,
|
||||
minPrice: minprice,
|
||||
lastBase: minprice,
|
||||
}
|
||||
}
|
||||
|
||||
func (self *GasPriceOracle) processPastBlocks() {
|
||||
func (gpo *GasPriceOracle) init() {
|
||||
gpo.initOnce.Do(func() {
|
||||
gpo.processPastBlocks(gpo.eth.BlockChain())
|
||||
go gpo.listenLoop()
|
||||
})
|
||||
}
|
||||
|
||||
func (self *GasPriceOracle) processPastBlocks(chain *core.BlockChain) {
|
||||
last := int64(-1)
|
||||
cblock := self.chain.CurrentBlock()
|
||||
cblock := chain.CurrentBlock()
|
||||
if cblock != nil {
|
||||
last = int64(cblock.NumberU64())
|
||||
}
|
||||
@ -75,7 +92,7 @@ func (self *GasPriceOracle) processPastBlocks() {
|
||||
}
|
||||
self.firstProcessed = uint64(first)
|
||||
for i := first; i <= last; i++ {
|
||||
block := self.chain.GetBlockByNumber(uint64(i))
|
||||
block := chain.GetBlockByNumber(uint64(i))
|
||||
if block != nil {
|
||||
self.processBlock(block)
|
||||
}
|
||||
@ -84,9 +101,10 @@ func (self *GasPriceOracle) processPastBlocks() {
|
||||
}
|
||||
|
||||
func (self *GasPriceOracle) listenLoop() {
|
||||
defer self.events.Unsubscribe()
|
||||
events := self.eth.EventMux().Subscribe(core.ChainEvent{}, core.ChainSplitEvent{})
|
||||
defer events.Unsubscribe()
|
||||
|
||||
for event := range self.events.Chan() {
|
||||
for event := range events.Chan() {
|
||||
switch event := event.Data.(type) {
|
||||
case core.ChainEvent:
|
||||
self.processBlock(event.Block)
|
||||
@ -102,7 +120,7 @@ func (self *GasPriceOracle) processBlock(block *types.Block) {
|
||||
self.lastProcessed = i
|
||||
}
|
||||
|
||||
lastBase := self.eth.GpoMinGasPrice
|
||||
lastBase := self.minPrice
|
||||
bpl := self.blocks[i-1]
|
||||
if bpl != nil {
|
||||
lastBase = bpl.baseGasPrice
|
||||
@ -176,28 +194,19 @@ func (self *GasPriceOracle) lowestPrice(block *types.Block) *big.Int {
|
||||
return minPrice
|
||||
}
|
||||
|
||||
// SuggestPrice returns the recommended gas price.
|
||||
func (self *GasPriceOracle) SuggestPrice() *big.Int {
|
||||
self.init()
|
||||
self.lastBaseMutex.Lock()
|
||||
base := self.lastBase
|
||||
price := new(big.Int).Set(self.lastBase)
|
||||
self.lastBaseMutex.Unlock()
|
||||
|
||||
if base == nil {
|
||||
base = self.eth.GpoMinGasPrice
|
||||
price.Mul(price, big.NewInt(int64(self.eth.GpobaseCorrectionFactor)))
|
||||
price.Div(price, big.NewInt(100))
|
||||
if price.Cmp(self.minPrice) < 0 {
|
||||
price.Set(self.minPrice)
|
||||
} else if self.eth.GpoMaxGasPrice != nil && price.Cmp(self.eth.GpoMaxGasPrice) > 0 {
|
||||
price.Set(self.eth.GpoMaxGasPrice)
|
||||
}
|
||||
if base == nil {
|
||||
return big.NewInt(10000000000000) // apparently MinGasPrice is not initialized during some tests
|
||||
}
|
||||
|
||||
baseCorr := new(big.Int).Mul(base, big.NewInt(int64(self.eth.GpobaseCorrectionFactor)))
|
||||
baseCorr.Div(baseCorr, big.NewInt(100))
|
||||
|
||||
if baseCorr.Cmp(self.eth.GpoMinGasPrice) < 0 {
|
||||
return self.eth.GpoMinGasPrice
|
||||
}
|
||||
|
||||
if baseCorr.Cmp(self.eth.GpoMaxGasPrice) > 0 {
|
||||
return self.eth.GpoMaxGasPrice
|
||||
}
|
||||
|
||||
return baseCorr
|
||||
return price
|
||||
}
|
||||
|
41
xeth/xeth.go
41
xeth/xeth.go
@ -59,24 +59,8 @@ const (
|
||||
LogFilterTy
|
||||
)
|
||||
|
||||
func DefaultGas() *big.Int { return new(big.Int).Set(defaultGas) }
|
||||
|
||||
func (self *XEth) DefaultGasPrice() *big.Int {
|
||||
if self.gpo == nil {
|
||||
self.gpo = eth.NewGasPriceOracle(self.backend)
|
||||
}
|
||||
return self.gpo.SuggestPrice()
|
||||
}
|
||||
|
||||
type XEth struct {
|
||||
backend *eth.Ethereum
|
||||
frontend Frontend
|
||||
|
||||
state *State
|
||||
whisper *Whisper
|
||||
|
||||
quit chan struct{}
|
||||
filterManager *filters.FilterSystem
|
||||
quit chan struct{}
|
||||
|
||||
logMu sync.RWMutex
|
||||
logQueue map[int]*logQueue
|
||||
@ -92,16 +76,18 @@ type XEth struct {
|
||||
|
||||
transactMu sync.Mutex
|
||||
|
||||
agent *miner.RemoteAgent
|
||||
|
||||
gpo *eth.GasPriceOracle
|
||||
// read-only fields
|
||||
backend *eth.Ethereum
|
||||
frontend Frontend
|
||||
agent *miner.RemoteAgent
|
||||
gpo *eth.GasPriceOracle
|
||||
state *State
|
||||
whisper *Whisper
|
||||
filterManager *filters.FilterSystem
|
||||
}
|
||||
|
||||
func NewTest(eth *eth.Ethereum, frontend Frontend) *XEth {
|
||||
return &XEth{
|
||||
backend: eth,
|
||||
frontend: frontend,
|
||||
}
|
||||
return &XEth{backend: eth, frontend: frontend}
|
||||
}
|
||||
|
||||
// New creates an XEth that uses the given frontend.
|
||||
@ -118,6 +104,7 @@ func New(ethereum *eth.Ethereum, frontend Frontend) *XEth {
|
||||
transactionQueue: make(map[int]*hashQueue),
|
||||
messages: make(map[int]*whisperFilter),
|
||||
agent: miner.NewRemoteAgent(),
|
||||
gpo: eth.NewGasPriceOracle(ethereum),
|
||||
}
|
||||
if ethereum.Whisper() != nil {
|
||||
xeth.whisper = NewWhisper(ethereum.Whisper())
|
||||
@ -207,6 +194,12 @@ func cTopics(t [][]string) [][]common.Hash {
|
||||
return topics
|
||||
}
|
||||
|
||||
func DefaultGas() *big.Int { return new(big.Int).Set(defaultGas) }
|
||||
|
||||
func (self *XEth) DefaultGasPrice() *big.Int {
|
||||
return self.gpo.SuggestPrice()
|
||||
}
|
||||
|
||||
func (self *XEth) RemoteMining() *miner.RemoteAgent { return self.agent }
|
||||
|
||||
func (self *XEth) AtStateNum(num int64) *XEth {
|
||||
|
Loading…
Reference in New Issue
Block a user