mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-12-22 01:57:12 -05:00
remove sending queue
This commit is contained in:
Darien Raymond
parent
e6e0419958
commit
5d20e3f70b
@ -2,8 +2,6 @@ package kcp
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import (
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"sync"
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"v2ray.com/core/common/alloc"
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)
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type SendingWindow struct {
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@ -67,6 +65,13 @@ func (this *SendingWindow) First() *DataSegment {
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return this.data[this.start]
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}
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func (this *SendingWindow) Last() *DataSegment {
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if this.IsEmpty() {
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return nil
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}
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return this.data[this.last]
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}
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func (this *SendingWindow) Clear(una uint32) {
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for !this.IsEmpty() && this.data[this.start].Number < una {
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this.Remove(0)
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@ -171,80 +176,10 @@ func (this *SendingWindow) Flush(current uint32, resend uint32, rto uint32, maxI
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}
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}
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type SendingQueue struct {
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start uint32
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cap uint32
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len uint32
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list []*alloc.Buffer
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}
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func NewSendingQueue(size uint32) *SendingQueue {
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return &SendingQueue{
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start: 0,
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cap: size,
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list: make([]*alloc.Buffer, size),
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len: 0,
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}
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}
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func (this *SendingQueue) IsFull() bool {
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return this.len == this.cap
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}
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func (this *SendingQueue) IsEmpty() bool {
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return this.len == 0
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}
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func (this *SendingQueue) Pop() *alloc.Buffer {
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if this.IsEmpty() {
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return nil
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}
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seg := this.list[this.start]
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this.list[this.start] = nil
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this.len--
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this.start++
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if this.start == this.cap {
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this.start = 0
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}
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if this.IsEmpty() {
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this.start = 0
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}
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return seg
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}
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func (this *SendingQueue) Last() *alloc.Buffer {
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if this.IsEmpty() {
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return nil
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}
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return this.list[(this.start+this.len-1+this.cap)%this.cap]
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}
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func (this *SendingQueue) Push(seg *alloc.Buffer) {
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if this.IsFull() {
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return
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}
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this.list[(this.start+this.len)%this.cap] = seg
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this.len++
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}
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func (this *SendingQueue) Clear() {
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for i := uint32(0); i < this.len; i++ {
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this.list[(i+this.start)%this.cap].Release()
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this.list[(i+this.start)%this.cap] = nil
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}
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this.start = 0
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this.len = 0
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}
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func (this *SendingQueue) Len() uint32 {
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return this.len
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}
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type SendingWorker struct {
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sync.RWMutex
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conn *Connection
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window *SendingWindow
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queue *SendingQueue
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firstUnacknowledged uint32
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nextNumber uint32
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remoteNextNumber uint32
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@ -256,12 +191,11 @@ type SendingWorker struct {
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func NewSendingWorker(kcp *Connection) *SendingWorker {
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worker := &SendingWorker{
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conn: kcp,
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queue: NewSendingQueue(effectiveConfig.GetSendingQueueSize()),
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fastResend: 2,
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remoteNextNumber: 32,
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controlWindow: effectiveConfig.GetSendingInFlightSize(),
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}
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worker.window = NewSendingWindow(effectiveConfig.GetSendingWindowSize(), worker, worker.OnPacketLoss)
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worker.window = NewSendingWindow(effectiveConfig.GetSendingQueueSize(), worker, worker.OnPacketLoss)
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return worker
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}
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@ -301,19 +235,6 @@ func (this *SendingWorker) ProcessAck(number uint32) {
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this.FindFirstUnacknowledged()
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}
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func (this *SendingWorker) FillWindow(current uint32) {
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for !this.queue.IsEmpty() && !this.window.IsFull() {
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seg := NewDataSegment()
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seg.Data = this.queue.Pop()
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seg.Number = this.nextNumber
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seg.timeout = current
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seg.ackSkipped = 0
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seg.transmit = 0
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this.window.Push(seg)
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this.nextNumber++
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}
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}
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func (this *SendingWorker) ProcessSegment(current uint32, seg *AckSegment) {
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defer seg.Release()
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@ -339,33 +260,40 @@ func (this *SendingWorker) ProcessSegment(current uint32, seg *AckSegment) {
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}
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this.window.HandleFastAck(maxack)
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this.FillWindow(current)
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}
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func (this *SendingWorker) Push(b []byte) int {
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nBytes := 0
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this.Lock()
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defer this.Unlock()
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if !this.queue.IsEmpty() {
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lastSeg := this.queue.Last()
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if lastSeg.Len() < int(this.conn.mss) {
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delta := int(this.conn.mss) - lastSeg.Len()
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if !this.window.IsEmpty() {
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lastSeg := this.window.Last()
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dataLen := lastSeg.Data.Len()
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if dataLen < int(this.conn.mss) {
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delta := int(this.conn.mss) - dataLen
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if delta > len(b) {
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delta = len(b)
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}
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lastSeg.Append(b[:delta])
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lastSeg.Data.Append(b[:delta])
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b = b[delta:]
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nBytes += delta
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}
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}
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for len(b) > 0 && !this.queue.IsFull() {
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for len(b) > 0 && !this.window.IsFull() {
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var size int
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if len(b) > int(this.conn.mss) {
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size = int(this.conn.mss)
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} else {
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size = len(b)
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}
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this.queue.Push(AllocateBuffer().Clear().Append(b[:size]))
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seg := NewDataSegment()
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seg.Data = AllocateBuffer().Clear().Append(b[:size])
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seg.Number = this.nextNumber
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seg.timeout = 0
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seg.ackSkipped = 0
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seg.transmit = 0
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this.window.Push(seg)
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this.nextNumber++
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b = b[size:]
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nBytes += size
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}
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@ -431,8 +359,9 @@ func (this *SendingWorker) Flush(current uint32) {
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cwnd = this.firstUnacknowledged + this.controlWindow
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}
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this.FillWindow(current)
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this.window.Flush(current, this.conn.fastresend, this.conn.roundTrip.Timeout(), cwnd)
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if !this.window.IsEmpty() {
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this.window.Flush(current, this.conn.fastresend, this.conn.roundTrip.Timeout(), cwnd)
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}
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}
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func (this *SendingWorker) CloseWrite() {
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@ -440,12 +369,11 @@ func (this *SendingWorker) CloseWrite() {
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defer this.Unlock()
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this.window.Clear(0xFFFFFFFF)
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this.queue.Clear()
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}
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func (this *SendingWorker) IsEmpty() bool {
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this.RLock()
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defer this.RUnlock()
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return this.window.IsEmpty() && this.queue.IsEmpty()
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return this.window.IsEmpty()
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}
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@ -3,67 +3,10 @@ package kcp_test
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import (
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"testing"
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"v2ray.com/core/common/alloc"
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"v2ray.com/core/testing/assert"
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. "v2ray.com/core/transport/internet/kcp"
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)
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func TestSendingQueue(t *testing.T) {
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assert := assert.On(t)
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queue := NewSendingQueue(3)
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seg0 := alloc.NewLocalBuffer(512)
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seg1 := alloc.NewLocalBuffer(512)
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seg2 := alloc.NewLocalBuffer(512)
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seg3 := alloc.NewLocalBuffer(512)
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assert.Bool(queue.IsEmpty()).IsTrue()
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assert.Bool(queue.IsFull()).IsFalse()
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queue.Push(seg0)
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assert.Bool(queue.IsEmpty()).IsFalse()
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queue.Push(seg1)
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queue.Push(seg2)
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assert.Bool(queue.IsFull()).IsTrue()
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assert.Pointer(queue.Pop()).Equals(seg0)
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queue.Push(seg3)
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assert.Bool(queue.IsFull()).IsTrue()
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assert.Pointer(queue.Pop()).Equals(seg1)
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assert.Pointer(queue.Pop()).Equals(seg2)
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assert.Pointer(queue.Pop()).Equals(seg3)
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assert.Int(int(queue.Len())).Equals(0)
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}
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func TestSendingQueueClear(t *testing.T) {
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assert := assert.On(t)
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queue := NewSendingQueue(3)
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seg0 := alloc.NewLocalBuffer(512)
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seg1 := alloc.NewLocalBuffer(512)
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seg2 := alloc.NewLocalBuffer(512)
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seg3 := alloc.NewLocalBuffer(512)
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queue.Push(seg0)
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assert.Bool(queue.IsEmpty()).IsFalse()
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queue.Clear()
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assert.Bool(queue.IsEmpty()).IsTrue()
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queue.Push(seg1)
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queue.Push(seg2)
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queue.Push(seg3)
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queue.Clear()
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assert.Bool(queue.IsEmpty()).IsTrue()
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}
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func TestSendingWindow(t *testing.T) {
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assert := assert.On(t)
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