add

client.go

@@ -2,8 +2,6 @@ package pingtunnel
 
 import (
 	"github.com/esrrhs/go-engine/src/loggo"
-	"github.com/esrrhs/go-engine/src/pool"
-	"github.com/esrrhs/go-engine/src/rbuffergo"
 	"golang.org/x/net/icmp"
 	"math"
 	"math/rand"
@@ -34,13 +32,6 @@ func NewClient(addr string, server string, target string, timeout int, sproto in
 		return nil, err
 	}
 
-	var sendFramePool *pool.Pool
-	if tcpmode {
-		sendFramePool = pool.New(func() interface{} {
-			return Frame{size: 0, data: make([]byte, FRAME_MAX_SIZE)}
-		})
-	}
-
 	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	return &Client{
 		id:           r.Intn(math.MaxInt16),
@@ -56,7 +47,6 @@ func NewClient(addr string, server string, target string, timeout int, sproto in
 		catch:        catch,
 		key:          key,
 		tcpmode:      tcpmode,
-		sendFramePool: sendFramePool,
 	}, nil
 }
 
@@ -70,8 +60,9 @@ type Client struct {
 	catch                 int
 	key                   int
 	tcpmode               bool
-
+	tcpmode_buffersize    int
-	sendFramePool *pool.Pool
+	tcpmode_maxwin        int
+	tcpmode_resend_timems int
 
 	ipaddr  *net.UDPAddr
 	tcpaddr *net.TCPAddr
@@ -105,8 +96,7 @@ type ClientConn struct {
 	activeTime time.Time
 	close      bool
 
-	sendb *rbuffergo.RBuffergo
+	fm *FrameMgr
-	recvb *rbuffergo.RBuffergo
 }
 
 func (p *Client) Addr() string {
@@ -221,59 +211,73 @@ func (p *Client) AcceptTcp() error {
 
 }
 
-func (p *Client) AcceptTcpConn(conn *net.TCPConn) error {
+func (p *Client) AcceptTcpConn(conn *net.TCPConn) {
 
 	now := time.Now()
 	uuid := UniqueId()
 	tcpsrcaddr := conn.RemoteAddr().(*net.TCPAddr)
 
-	sendb := rbuffergo.New(1024*1024, false)
+	fm := NewFrameMgr(p.tcpmode_buffersize, p.tcpmode_maxwin, p.tcpmode_resend_timems)
-	recvb := rbuffergo.New(1024*1024, false)
 
-	cutsize := FRAME_MAX_SIZE
+	clientConn := &ClientConn{tcpaddr: tcpsrcaddr, id: uuid, activeTime: now, close: false,
-	sendwin := sendb.Capacity() / cutsize
+		fm: fm}
-
-	clientConn := &ClientConn{tcpaddr: tcpsrcaddr, id: uuid, activeTime: now, close: false, sendb: sendb, recvb: recvb}
 	p.localAddrToConnMap[tcpsrcaddr.String()] = clientConn
 	p.localIdToConnMap[uuid] = clientConn
 	loggo.Info("client accept new local tcp %s %s", uuid, tcpsrcaddr.String())
 
 	bytes := make([]byte, 10240)
 
-	sendwinmap := make(map[string]*ClientConn)
-
 	for {
-		left := sendb.Capacity() - sendb.Size()
+		left := clientConn.fm.GetSendBufferLeft()
 		if left >= len(bytes) {
 			conn.SetReadDeadline(time.Now().Add(time.Millisecond * 100))
-			n, srcaddr, err := p.conn.ReadFrom(bytes)
+			n, err := conn.Read(bytes)
 			if err != nil {
 				if neterr, ok := err.(*net.OpError); ok {
 					if neterr.Timeout() {
 						// Read timeout
-						continue
+						n = 0
 					} else {
-						loggo.Error("Error read tcp %s %s", srcaddr.String(), err)
+						loggo.Error("Error read tcp %s %s %s", uuid, tcpsrcaddr.String(), err)
 						break
 					}
 				}
 			}
 			if n > 0 {
-				sendb.Write(bytes[:n])
+				clientConn.fm.WriteSendBuffer(bytes[:n])
 			}
 		}
 
+		clientConn.fm.Update()
+
+		sendlist := clientConn.fm.getSendList()
+
 		clientConn.activeTime = now
-		sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, clientConn.id, (uint32)(DATA), bytes[:n],
+
-			p.sproto, p.rproto, p.catch, p.key)
+		for e := sendlist.Front(); e != nil; e = e.Next() {
+
+			f := e.Value.(Frame)
+			mb, err := f.Marshal(0)
+			if err != nil {
+				loggo.Error("Error tcp Marshal %s %s %s", uuid, tcpsrcaddr.String(), err)
+				break
+			}
 
 			p.sequence++
 
 			p.sendPacket++
-		p.sendPacketSize += (uint64)(n)
+			p.sendPacketSize += (uint64)(f.size)
+
+			sendICMP(p.id, p.sequence, *p.conn, p.ipaddrServer, p.targetAddr, clientConn.id, (uint32)(DATA), mb,
+				p.sproto, p.rproto, p.catch, p.key)
 		}
 	}
 
+	loggo.Info("close inactive conn %s %s", clientConn.id, clientConn.tcpaddr.String())
+	conn.Close()
+	p.Close(clientConn)
+}
+
 func (p *Client) Accept() error {
 
 	loggo.Info("client waiting local accept udp")
@@ -374,6 +378,11 @@ func (p *Client) Close(clientConn *ClientConn) {
 }
 
 func (p *Client) checkTimeoutConn() {
+
+	if p.tcpmode {
+		return
+	}
+
 	now := time.Now()
 	for _, conn := range p.localIdToConnMap {
 		diff := now.Sub(conn.activeTime)

cmd/main.go

@@ -89,7 +89,8 @@ func main() {
 		fmt.Printf("server %s\n", *server)
 		fmt.Printf("target %s\n", *target)
 
-		c, err := pingtunnel.NewClient(*listen, *server, *target, *timeout, *sproto, *rproto, *catch, *key, *tcpmode)
+		c, err := pingtunnel.NewClient(*listen, *server, *target, *timeout, *sproto, *rproto, *catch, *key,
+			*tcpmode)
 		if err != nil {
 			fmt.Printf("ERROR: %s\n", err.Error())
 			return

framemgr.go

@@ -0,0 +1,107 @@
+package pingtunnel
+
+import (
+	"container/list"
+	"github.com/esrrhs/go-engine/src/rbuffergo"
+	"math/rand"
+	"sync"
+	"time"
+)
+
+type FrameMgr struct {
+	sendb         *rbuffergo.RBuffergo
+	recvb         *rbuffergo.RBuffergo
+	sendlock      sync.Locker
+	recvlock      sync.Locker
+	windowsize    int
+	resend_timems int
+	win           *list.List
+	sendid        int
+	sendlist      *list.List
+}
+
+func NewFrameMgr(buffersize int, windowsize int, resend_timems int) *FrameMgr {
+
+	sendb := rbuffergo.New(buffersize, false)
+	recvb := rbuffergo.New(buffersize, false)
+
+	fm := &FrameMgr{sendb: sendb, recvb: recvb,
+		sendlock: &sync.Mutex{}, recvlock: &sync.Mutex{},
+		windowsize: windowsize, win: list.New(), sendid: rand.Int() % (FRAME_MAX_ID + 1),
+		resend_timems: resend_timems, sendlist: list.New()}
+
+	return fm
+}
+
+func (fm *FrameMgr) GetSendBufferLeft() int {
+	left := fm.sendb.Capacity() - fm.sendb.Size()
+	return left
+}
+
+func (fm *FrameMgr) WriteSendBuffer(data []byte) {
+	fm.sendlock.Lock()
+	defer fm.sendlock.Unlock()
+	fm.sendb.Write(data)
+}
+
+func (fm *FrameMgr) Update() {
+	fm.cutSendBufferToWindow()
+	fm.calSendList()
+}
+
+func (fm *FrameMgr) cutSendBufferToWindow() {
+	fm.sendlock.Lock()
+	defer fm.sendlock.Unlock()
+
+	sendall := false
+
+	if fm.sendb.Size() < FRAME_MAX_SIZE {
+		sendall = true
+	}
+
+	for fm.sendb.Size() > FRAME_MAX_SIZE && fm.win.Len() < fm.windowsize {
+		f := Frame{resend: false, sendtime: 0,
+			id: fm.sendid, size: FRAME_MAX_SIZE,
+			data: make([]byte, FRAME_MAX_SIZE)}
+		fm.sendb.Read(f.data)
+
+		fm.sendid++
+		if fm.sendid > FRAME_MAX_ID {
+			fm.sendid = 0
+		}
+
+		fm.win.PushBack(f)
+	}
+
+	if sendall && fm.sendb.Size() > 0 && fm.win.Len() < fm.windowsize {
+		f := Frame{resend: false, sendtime: 0,
+			id: fm.sendid, size: fm.sendb.Size(),
+			data: make([]byte, fm.sendb.Size())}
+		fm.sendb.Read(f.data)
+
+		fm.sendid++
+		if fm.sendid > FRAME_MAX_ID {
+			fm.sendid = 0
+		}
+
+		fm.win.PushBack(f)
+	}
+}
+
+func (fm *FrameMgr) calSendList() {
+	cur := time.Now().UnixNano()
+
+	fm.sendlist.Init()
+
+	for e := fm.win.Front(); e != nil; e = e.Next() {
+		f := e.Value.(Frame)
+		if f.resend || cur-f.sendtime > int64(fm.resend_timems*1000) {
+			f.sendtime = cur
+			fm.sendlist.PushBack(&f)
+		}
+	}
+}
+
+func (fm *FrameMgr) getSendList() *list.List {
+	return fm.sendlist
+}

pingtunnel.go

@@ -264,9 +264,44 @@ type CatchMsg struct {
 
 const (
 	FRAME_MAX_SIZE int = 888
+	FRAME_MAX_ID   int = 999
+)
+
+const (
+	FRAME_TYPE_DATA int = 0x0101
+	FRAME_TYPE_REQ  int = 0x0202
+	FRAME_TYPE_ACK  int = 0x0303
 )
 
 type Frame struct {
+	ty       int
+	resend   bool
+	sendtime int64
+	id       int
 	size     int
 	data     []byte
+	dataid   []int
+}
+
+// Marshal implements the Marshal method of MessageBody interface.
+func (p *Frame) Marshal(proto int) ([]byte, error) {
+
+	b := make([]byte, p.Len(proto))
+
+	binary.BigEndian.PutUint16(b[:2], uint16(p.ty))
+
+	datalen := len(p.data)
+	binary.BigEndian.PutUint16(b[2:4], uint16(datalen))
+
+	// TODO
+
+	return b, nil
+}
+
+// Len implements the Len method of MessageBody interface.
+func (p *Frame) Len(proto int) int {
+	if p == nil {
+		return 0
+	}
+	return 4 + 2 + 4 + 4 // TODO
 }