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introduce a new state: peer terminating

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This commit is contained in:
v2ray 2016-07-14 12:57:14 +02:00
parent 05ed05b9a0
commit 476b3c68d2
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GPG Key ID: 7251FFA14BB18169
2 changed files with 27 additions and 6 deletions
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18
transport/internet/kcp/connection.go
View File

@ -26,7 +26,8 @@ const (
StateReadyToClose State = 1
StatePeerClosed State = 2
StateTerminating State = 3
StateTerminated State = 4
StatePeerTerminating State = 4
StateTerminated State = 5
)
const (
@ -177,6 +178,10 @@ func (this *Connection) Read(b []byte) (int, error) {
return nBytes, nil
}
if this.State() == StatePeerTerminating {
return 0, io.EOF
}
var timer *time.Timer
if !this.rd.IsZero() {
duration := this.rd.Sub(time.Now())
@ -240,6 +245,8 @@ func (this *Connection) SetState(state State) {
case StateTerminating:
this.receivingWorker.CloseRead()
this.sendingWorker.CloseWrite()
case StatePeerTerminating:
this.sendingWorker.CloseWrite()
case StateTerminated:
this.receivingWorker.CloseRead()
this.sendingWorker.CloseWrite()
@ -268,6 +275,9 @@ func (this *Connection) Close() error {
if state == StatePeerClosed {
this.SetState(StateTerminating)
}
if state == StatePeerTerminating {
this.SetState(StateTerminated)
}
return nil
}
@ -405,8 +415,9 @@ func (this *Connection) Input(data []byte) int {
if seg.Cmd == SegmentCommandTerminated {
state := this.State()
if state == StateActive ||
state == StateReadyToClose ||
state == StatePeerClosed {
this.SetState(StatePeerTerminating)
} else if state == StateReadyToClose {
this.SetState(StateTerminating)
} else if state == StateTerminating {
this.SetState(StateTerminated)
@ -450,6 +461,9 @@ func (this *Connection) flush() {
}
return
}
if this.State() == StatePeerTerminating && current-atomic.LoadUint32(&this.stateBeginTime) > 4000 {
this.SetState(StateTerminating)
}
if this.State() == StateReadyToClose && current-atomic.LoadUint32(&this.stateBeginTime) > 15000 {
this.SetState(StateTerminating)

7
transport/internet/kcp/listener.go
View File

@ -59,10 +59,17 @@ func (this *Listener) OnReceive(payload *alloc.Buffer, src v2net.Destination) {
if !this.running {
return
}
if payload.Len() < 4 {
return
}
conv := serial.BytesToUint16(payload.Value)
cmd := SegmentCommand(payload.Value[2])
sourceId := src.NetAddr() + "|" + serial.Uint16ToString(conv)
conn, found := this.sessions[sourceId]
if !found {
if cmd == SegmentCommandTerminated {
return
}
log.Debug("KCP|Listener: Creating session with id(", sourceId, ") from ", src)
writer := &Writer{
id: sourceId,