コード例 #1
0
ファイル: tests.go プロジェクト: G-VAR/router
func test_StrId() {
	rout := router.New(router.StrID(), 32, router.BroadcastPolicy)
	chi1 := make(chan string)
	chi2 := make(chan string)
	cho := make(chan string)
	done := make(chan bool)
	rout.AttachSendChan(router.StrID("test"), cho)
	rout.AttachRecvChan(router.StrID("test"), chi1)
	rout.AttachRecvChan(router.StrID("test"), chi2)
	go func() {
		cho <- "hello"
		cho <- "from StrID"
		close(cho)
	}()
	go func() {
		for v := range chi1 {
			fmt.Println("StrId/sink1 got: ", v)
		}
		done <- true
	}()
	go func() {
		for v := range chi2 {
			fmt.Println("StrId/sink2 got: ", v)
		}
		done <- true
	}()
	<-done
	<-done
}
コード例 #2
0
ファイル: dbtask.go プロジェクト: G-VAR/router
func (dt *DbTask) handleCmd(cmd string) bool {
	cont := true
	svcname := ""
	idx := strings.Index(cmd, ":")
	if idx > 0 {
		svcname = cmd[idx+1:]
		cmd = cmd[0:idx]
	}
	switch cmd {
	case "Start":
		dt.numTrans = 0
		dt.role = Active
	case "Stop":
		dt.role = Standby
	case "Shutdown":
		cont = false
	case "AddService":
		if len(svcname) > 0 {
			ch := make(chan string)
			dt.dbRespChans[svcname] = ch
			dt.rot.AttachSendChan(router.StrID("/DB/Response/App/"+svcname), ch)
		}
	case "DelService":
		if len(svcname) > 0 {
			ch, ok := dt.dbRespChans[svcname]
			if ok {
				delete(dt.dbRespChans, svcname)
				dt.rot.DetachChan(router.StrID("/DB/Response/App/"+svcname), ch)
			}
		}
	default:
	}
	return cont
}
コード例 #3
0
ファイル: game6.go プロジェクト: G-VAR/router
func main() {
	flag.Parse()
	if flag.NArg() < 1 {
		fmt.Println("Usage: game6 num_runs hideTrace")
		return
	} else if flag.NArg() > 1 {
		showPingPong = false
	}
	numRuns, _ := strconv.Atoi(flag.Arg(0))

	c0, c1 := net.Pipe()

	done := make(chan bool)

	//create router and connect it to io conn
	rot1 := router.New(router.StrID(), 32, router.BroadcastPolicy)
	go rot1.ConnectRemote(c0, router.GobMarshaling, router.XOnOffFlowController)

	//hook up Pinger and Ponger
	newPinger(rot1, done, numRuns)

	//create router and connect it to io conn
	rot2 := router.New(router.StrID(), 32, router.BroadcastPolicy)
	rot2.ConnectRemote(c1, router.GobMarshaling, router.XOnOffFlowController)

	//hook up Ponger
	newPonger(rot2, done)

	//wait for ping-pong to finish
	<-done
	<-done
}
コード例 #4
0
ファイル: faultmgrtask.go プロジェクト: G-VAR/router
func (ft *FaultMgrTask) handleCmd(cmd string) bool {
	cont := true
	svcname := ""
	idx := strings.Index(cmd, ":")
	if idx > 0 {
		svcname = cmd[idx+1:]
		cmd = cmd[0:idx]
	}
	switch cmd {
	case "Start":
		ft.role = Active
	case "Stop":
		ft.role = Standby
	case "Shutdown":
		cont = false
	case "AddService":
		if len(svcname) > 0 {
			ch := make(chan string)
			ft.svcCmdChans[svcname] = ch
			ft.rot.AttachSendChan(router.StrID("/Fault/Command/App/"+svcname), ch)
		}
	case "DelService":
		if len(svcname) > 0 {
			ch, ok := ft.svcCmdChans[svcname]
			if ok {
				delete(ft.svcCmdChans, svcname)
				ft.rot.DetachChan(router.StrID("/Fault/Command/App/"+svcname), ch)
			}
		}
	default:
	}
	return cont
}
コード例 #5
0
ファイル: sysmgrtask.go プロジェクト: G-VAR/router
func (smt *SysMgrTask) init(r router.Router, n string, role ServantRole) {
	smt.rot = r
	smt.name = n
	smt.role = role
	smt.htbtSendChan = make(chan time.Time)
	smt.htbtRecvChan = make(chan time.Time)
	smt.sysCmdChan = make(chan string)
	smt.sysOOSChan = make(chan string)
	smt.childBindChan = make(chan *router.BindEvent, 1)
	smt.startChan = make(chan bool, 1)
	smt.stopChan = make(chan bool, 1)
	smt.exitChanMap = make(map[string]chan bool)
	//output_intf or send chans
	smt.rot.AttachSendChan(router.StrID("/Sys/Command"), smt.sysCmdChan, smt.childBindChan)
	smt.rot.AttachSendChan(router.StrID("/Sys/Ctrl/Heartbeat", router.ScopeRemote), smt.htbtSendChan)
	//input_intf or recv chans
	smt.rot.AttachRecvChan(router.StrID("/Sys/Ctrl/Heartbeat", router.ScopeRemote), smt.htbtRecvChan)
	smt.rot.AttachRecvChan(router.StrID("/Sys/OutOfService"), smt.sysOOSChan)
	//
	smt.rmtPubChan = make(chan *router.ChanInfoMsg)
	smt.rmtUnpubChan = make(chan *router.ChanInfoMsg)
	smt.locUnpubChan = make(chan *router.ChanInfoMsg)
	//use pubBindChan/unpubBindChan when attaching chans to PubId/UnPubId, so that they will not be
	//closed when all clients close and leave
	smt.pubBindChan = make(chan *router.BindEvent, 1)
	smt.unpubBindChan = make(chan *router.BindEvent, 1)
	smt.rot.AttachRecvChan(smt.rot.NewSysID(router.PubId, router.ScopeRemote), smt.rmtPubChan, smt.pubBindChan)
	smt.rot.AttachRecvChan(smt.rot.NewSysID(router.UnPubId, router.ScopeRemote), smt.rmtUnpubChan, smt.unpubBindChan)
	smt.rot.AttachRecvChan(smt.rot.NewSysID(router.UnPubId, router.ScopeLocal), smt.locUnpubChan)
}
コード例 #6
0
ファイル: tests.go プロジェクト: G-VAR/router
func test_notification() {
	rout := router.New(router.StrID(), 32, router.BroadcastPolicy)
	chi1 := make(chan string)
	chi2 := make(chan string)
	chiN := make(chan *router.ChanInfoMsg)
	cho := make(chan string)
	bound := make(chan *router.BindEvent, 1)
	done := make(chan bool)
	//subscribe to recver attach events
	rout.AttachRecvChan(rout.SysID(router.SubId), chiN)
	//
	rout.AttachSendChan(router.StrID("test"), cho, bound)
	rout.AttachRecvChan(router.StrID("test"), chi1)
	rout.AttachRecvChan(router.StrID("test"), chi2)
	//wait for two recvers to connect
	for {
		if (<-bound).Count == 2 {
			break
		}
	}
	go func() {
		cho <- "hello1"
		cho <- "hello2"
		cho <- "hello3"
		cho <- "from notif"
		close(cho)
	}()
	go func() {
		for v := range chi1 {
			fmt.Println("notif/sink1 got: ", v)
		}
		done <- true
	}()
	go func() {
		for v := range chi2 {
			fmt.Println("notif/sink2 got: ", v)
			rout.DetachChan(router.StrID("test"), chi2)
		}
		done <- true
	}()
	go func() {
		count := 0
		for m := range chiN {
			for _, v := range m.Info {
				fmt.Println("got sub notif: ", v.Id)
			}
			count++
			if count >= 2 {
				break
			}
		}
		done <- true
	}()
	<-done
	<-done
	<-done
	rout.Close()
}
コード例 #7
0
ファイル: chatcli.go プロジェクト: G-VAR/router
func (c *Chatter) Leave(s string) {
	subj, ok := c.subjectMap[s]
	if !ok {
		return
	}
	delete(c.subjectMap, s)
	c.r.DetachChan(router.StrID(s, router.ScopeRemote), subj.recvChan)
	c.r.DetachChan(router.StrID(s, router.ScopeRemote), subj.sendChan)
}
コード例 #8
0
ファイル: client.go プロジェクト: G-VAR/router
func main() {
	flag.Parse()
	if flag.NArg() < 2 {
		fmt.Println("Usage: client ServiceName numRuns")
		return
	}
	svcName := flag.Arg(0)
	numRuns, _ := strconv.Atoi(flag.Arg(1))

	conn1, _ := net.Dial("unix", ServantAddr1)
	fmt.Println("conn to servant1 up")
	conn2, _ := net.Dial("unix", ServantAddr2)
	fmt.Println("conn to servant2 up")

	//create router and connect it to both active and standby servants
	rot := router.New(router.StrID(), 32, router.BroadcastPolicy /* , "cli", router.ScopeLocal*/)
	proxy1 := router.NewProxy(rot, "proxy1", nil, nil)
	proxy2 := router.NewProxy(rot, "proxy2", nil, nil)
	proxy1.ConnectRemote(conn1, router.GobMarshaling, router.XOnOffFlowController)
	proxy2.ConnectRemote(conn2, router.GobMarshaling, router.XOnOffFlowController)

	reqChan := make(chan string)
	rspChan := make(chan string)
	bindChan := make(chan *router.BindEvent, 1)
	rot.AttachSendChan(router.StrID("/App/"+svcName+"/Request"), reqChan, bindChan)
	rot.AttachRecvChan(router.StrID("/App/"+svcName+"/Response"), rspChan)
	//make sure client connect to 2 servants before sending requests
	for {
		if (<-bindChan).Count > 1 {
			break
		}
	}
	cont := true
	for i := 0; i < numRuns && cont; i++ {
		req := fmt.Sprintf("request %d", i)
		fmt.Printf("client sent request [%s] to serivce [%s]\n", req, svcName)
		reqChan <- req
		timer := time.NewTimer(6e8) //the wait for response will time out in less than 1 sec
		select {
		case rsp, chOpen := <-rspChan:
			if !chOpen {
				fmt.Println("client response closed, exit")
				cont = false
			} else {
				fmt.Printf("client recv response ( %s )\n", rsp)
			}
		case <-timer.C:
			fmt.Printf("time out for reqest [%s]\n", req)
			i-- //resend it
		}
		timer.Stop()
	}
	fmt.Printf("client exit\n")
	conn1.Close()
	conn2.Close()
	rot.Close()
}
コード例 #9
0
ファイル: faultmgrtask.go プロジェクト: G-VAR/router
func (ft *FaultMgrTask) shutdown() {
	for k, v := range ft.svcCmdChans {
		ft.rot.DetachChan(router.StrID("/Fault/Command/App/"+k), v)
	}
	ft.rot.DetachChan(router.StrID("/Sys/OutOfService"), ft.sysOOSChan)
	ft.rot.DetachChan(router.StrID("/Fault/DB/Exception"), ft.faultReportChan)
	ft.rot.DetachChan(router.StrID("/Fault/AppService/Exception"), ft.faultReportChan)
	ft.rot.DetachChan(router.StrID("/Sys/Command"), ft.sysCmdChan)
}
コード例 #10
0
ファイル: game5.go プロジェクト: G-VAR/router
func newPonger(rot router.Router, done chan<- bool) {
	//attach chans to router
	pingChan := make(chan Msg)
	pongChan := make(chan Msg)
	rot.AttachSendChan(router.StrID("pong"), pongChan)
	rot.AttachRecvChan(router.StrID("ping"), pingChan)
	//start ponger
	pong := &Ponger{pongChan, pingChan, done}
	go pong.Run()
}
コード例 #11
0
ファイル: game3.go プロジェクト: G-VAR/router
func newPinger(rot router.Router, done chan<- bool, numRuns int) {
	//attach chans to router
	pingChan := make(chan *Msg)
	pongChan := make(chan *Msg)
	rot.AttachSendChan(router.StrID("ping"), pingChan)
	rot.AttachRecvChan(router.StrID("pong"), pongChan)
	//start pinger
	ping := &Pinger{pingChan, pongChan, done, numRuns}
	go ping.Run()
}
コード例 #12
0
ファイル: dbtask.go プロジェクト: G-VAR/router
func (dt *DbTask) shutdown() {
	//output_intf or send chans
	dt.FaultRaiser.Close()
	for k, v := range dt.dbRespChans {
		dt.rot.DetachChan(router.StrID("/DB/Response/App/"+k), v)
	}
	//input_intf or recv chans
	dt.rot.DetachChan(router.StrID("/Sys/Command"), dt.sysCmdChan)
	dt.rot.DetachChan(router.StrID("/DB/Request"), dt.dbReqChan)
}
コード例 #13
0
ファイル: sysmgrtask.go プロジェクト: G-VAR/router
func (smt *SysMgrTask) shutdown() {
	//output_intf or send chans
	smt.rot.DetachChan(router.StrID("/Sys/Command"), smt.sysCmdChan)
	smt.rot.DetachChan(router.StrID("/Sys/Ctrl/Heartbeat", router.ScopeRemote), smt.htbtSendChan)
	//input_intf or recv chans
	smt.rot.DetachChan(router.StrID("/Sys/Ctrl/Heartbeat", router.ScopeRemote), smt.htbtRecvChan)
	smt.rot.DetachChan(router.StrID("/Sys/OutOfService"), smt.sysOOSChan)
	//
	smt.rot.DetachChan(smt.rot.NewSysID(router.PubId, router.ScopeRemote), smt.rmtPubChan)
	smt.rot.DetachChan(smt.rot.NewSysID(router.UnPubId, router.ScopeRemote), smt.rmtUnpubChan)
	smt.rot.DetachChan(smt.rot.NewSysID(router.UnPubId, router.ScopeLocal), smt.locUnpubChan)
}
コード例 #14
0
ファイル: game4.go プロジェクト: G-VAR/router
func main() {
	flag.Parse()
	if flag.NArg() < 1 {
		fmt.Println("Usage: game4 num_runs hideTrace")
		return
	} else if flag.NArg() > 1 {
		showPingPong = false
	}
	//clean up test sock
	addr := "/tmp/pingpong.test"
	os.Remove(addr)
	//
	numRuns, _ := strconv.Atoi(flag.Arg(0))
	done := make(chan bool)
	connNow := make(chan bool)
	//start two goroutines to setup a unix sock connection
	//connect two routers thru unix sock
	//and then hook up Pinger and Ponger to the routers
	go func() { //setup Pinger sock conn
		//wait for ponger up
		<-connNow
		//set up an io conn to ponger thru unix sock
		addr := "/tmp/pingpong.test"
		conn, _ := net.Dial("unix", addr)
		fmt.Println("ping conn up")

		//create router and connect it to io conn
		rot := router.New(router.StrID(), 32, router.BroadcastPolicy /*, "pinger", router.ScopeLocal*/)
		rot.ConnectRemote(conn, router.JsonMarshaling)

		//hook up Pinger and Ponger
		newPinger(rot, done, numRuns)
	}()
	go func() { //setup Ponger sock conn
		//wait to set up an io conn thru unix sock
		l, _ := net.Listen("unix", addr)
		connNow <- true //notify pinger that ponger's ready to accept
		conn, _ := l.Accept()
		fmt.Println("pong conn up")

		//create router and connect it to io conn
		rot := router.New(router.StrID(), 32, router.BroadcastPolicy /*, "ponger", router.ScopeLocal*/)
		rot.ConnectRemote(conn, router.JsonMarshaling)

		//hook up Ponger
		newPonger(rot, done)
	}()
	//wait for ping-pong to finish
	<-done
	<-done
}
コード例 #15
0
ファイル: faultmgrtask.go プロジェクト: G-VAR/router
func (ft *FaultMgrTask) init(r router.Router, sn string, role ServantRole) {
	ft.rot = r
	ft.role = role
	ft.servName = sn
	ft.svcCmdChans = make(map[string](chan string))
	ft.sysOOSChan = make(chan string)
	ft.faultReportChan = make(chan *router.FaultRecord)
	ft.sysCmdChan = make(chan string)
	ft.rot.AttachSendChan(router.StrID("/Sys/OutOfService"), ft.sysOOSChan)
	ft.rot.AttachRecvChan(router.StrID("/Sys/Command"), ft.sysCmdChan)
	//use a bindChan to keep faultReportChan open when all clients exit
	bc := make(chan *router.BindEvent, 1)
	ft.rot.AttachRecvChan(router.StrID("/Fault/DB/Exception"), ft.faultReportChan, bc)
	ft.rot.AttachRecvChan(router.StrID("/Fault/AppService/Exception"), ft.faultReportChan, bc)
}
コード例 #16
0
ファイル: dbtask.go プロジェクト: G-VAR/router
func (dt *DbTask) init(r router.Router, sn string, role ServantRole) {
	dt.rot = r
	dt.role = role
	dt.servName = sn
	dt.random = rand.New(rand.NewSource(time.Now().UnixNano()))
	dt.dbRespChans = make(map[string](chan string))
	dt.dbReqChan = make(chan *DbReq)
	dt.sysCmdChan = make(chan string)
	//output_intf or send chans
	dt.FaultRaiser = router.NewFaultRaiser(router.StrID("/Fault/DB/Exception"), r, "DbTask")
	//input_intf or recv chans
	r.AttachRecvChan(router.StrID("/Sys/Command"), dt.sysCmdChan)
	//use a bindChan to keep dbReqChan open when all clients detach & exit
	bc := make(chan *router.BindEvent, 1)
	r.AttachRecvChan(router.StrID("/DB/Request"), dt.dbReqChan, bc)
}
コード例 #17
0
ファイル: game5.go プロジェクト: G-VAR/router
func main() {
	flag.Parse()
	if flag.NArg() < 1 {
		fmt.Println("Usage: game5 num_runs hideTrace")
		return
	} else if flag.NArg() > 1 {
		showPingPong = false
	}
	numRuns, _ := strconv.Atoi(flag.Arg(0))
	done := make(chan bool)
	connNow := make(chan bool)
	//start two goroutines to setup a unix sock connection
	//connect two routers thru unix sock
	//and then hook up Pinger and Ponger to the routers
	go func() { //setup Pinger sock conn
		//wait for ponger up
		<-connNow
		//set up an io conn to ponger thru tcp sock
		conn, _ := net.Dial("tcp", "[::]:9099")
		fmt.Println("ping conn up")

		//create router and connect it to io conn
		rot := router.New(router.StrID(), 32, router.BroadcastPolicy)
		rot.ConnectRemote(conn, router.GobMarshaling, router.XOnOffFlowController)

		//hook up Pinger and Ponger
		newPinger(rot, done, numRuns)
	}()
	go func() { //setup Ponger sock conn
		//wait to set up an io conn thru tcp sock
		l, _ := net.Listen("tcp", ":9099")
		connNow <- true //notify pinger that ponger's ready to accept
		conn, _ := l.Accept()
		fmt.Println("pong conn up")

		//create router and connect it to io conn
		rot := router.New(router.StrID(), 32, router.BroadcastPolicy)
		rot.ConnectRemote(conn, router.GobMarshaling, router.XOnOffFlowController)

		//hook up Ponger
		newPonger(rot, done)
	}()
	//wait for ping-pong to finish
	<-done
	<-done
}
コード例 #18
0
ファイル: chatcli.go プロジェクト: G-VAR/router
func main() {
	flag.Parse()
	if flag.NArg() < 3 {
		fmt.Println("Usage: chatcli chatter_name srv_name srv_port")
		return
	}
	myName := flag.Arg(0)
	srvName := flag.Arg(1)
	srvPort := flag.Arg(2)

	dialaddr := srvName + ":" + srvPort
	conn, err := net.Dial("tcp", dialaddr)
	if err != nil {
		fmt.Println(err)
	}
	fmt.Println("client connect")

	rot := router.New(router.StrID(), 32, router.BroadcastPolicy /*, "client", router.ScopeLocal*/)
	_, err = rot.ConnectRemote(conn, router.JsonMarshaling)
	if err != nil {
		fmt.Println(err)
		return
	}

	chatter := newChatter(myName, rot)

	cont := true
	input := bufio.NewReader(os.Stdin)
	for cont {
		fmt.Println("action: 1 - Join, 2 - Leave, 3 - Send, 4 - Exit")
		action, _ := input.ReadString('\n')
		switch action[0] {
		case '1', '2', '3':
			fmt.Println("subject:")
			subj, _ := input.ReadString('\n')
			switch action[0] {
			case '1':
				chatter.Join(subj[0 : len(subj)-1])
			case '2':
				chatter.Leave(subj[0 : len(subj)-1])
			case '3':
				fmt.Println("message:")
				msg, _ := input.ReadString('\n')
				chatter.Send(subj[0:len(subj)-1], msg[0:len(msg)-1])
			default:
				fmt.Println("invalid action")
			}
		case '4':
			cont = false
		default:
			fmt.Println("invalid action")
		}
	}

	fmt.Println("client exit")
	conn.Close()
	rot.Close()
}
コード例 #19
0
ファイル: game3.go プロジェクト: G-VAR/router
func newPonger(rot router.Router, done chan<- bool) {
	//attach chans to router
	pingChan := make(chan *Msg)
	pongChan := make(chan *Msg)
	//bindChan := make(chan *router.BindEvent, 1)
	rot.AttachSendChan(router.StrID("pong"), pongChan /*, bindChan*/)
	rot.AttachRecvChan(router.StrID("ping"), pingChan)
	//wait for pinger connecting
	/*
		for {
			if (<-bindChan).Count > 0 {
				break
			}
		}
	*/
	//start ponger
	pong := &Ponger{pongChan, pingChan, done}
	go pong.Run()
}
コード例 #20
0
ファイル: game3.go プロジェクト: G-VAR/router
func main() {
	flag.Parse()
	if flag.NArg() < 1 {
		fmt.Println("Usage: game3 num_runs hideTrace")
		return
	} else if flag.NArg() > 1 {
		showPingPong = false
	}
	numRuns, _ := strconv.Atoi(flag.Arg(0))
	//alloc two routers to connect them
	rot1 := router.New(router.StrID(), 32, router.BroadcastPolicy)
	rot2 := router.New(router.StrID(), 32, router.BroadcastPolicy)
	rot1.Connect(rot2)
	done := make(chan bool)
	//hook up Pinger and Ponger
	newPinger(rot1, done, numRuns)
	newPonger(rot2, done)
	//wait for ping-pong to finish
	<-done
	<-done
}
コード例 #21
0
ファイル: chatcli.go プロジェクト: G-VAR/router
func (c *Chatter) Join(s string) {
	_, ok := c.subjectMap[s]
	if ok {
		return
	}
	subj := newSubject()
	c.subjectMap[s] = subj
	//use ScopeRemote to send msgs to peers in connected routers
	c.r.AttachSendChan(router.StrID(s, router.ScopeRemote), subj.sendChan)
	c.r.AttachRecvChan(router.StrID(s, router.ScopeRemote), subj.recvChan)
	//start reading/recving subject msgs
	go func() {
		for {
			msg, chOpen := <-subj.recvChan
			if !chOpen {
				break
			}
			fmt.Printf("recv: [%s]\n", msg)
		}
		fmt.Println("client recv goroutine exit")
	}()
}
コード例 #22
0
ファイル: servant.go プロジェクト: G-VAR/router
func NewServant(n string, role ServantRole, done chan bool) *Servant {
	s := new(Servant)
	s.Rot = router.New(router.StrID(), 32, router.BroadcastPolicy /* , n, router.ScopeLocal*/)
	s.role = role
	s.name = n
	//start system tasks, ServiceTask will be created when clients connect
	NewSysMgrTask(s.Rot, n, role)
	NewDbTask(s.Rot, n, role)
	NewFaultMgrTask(s.Rot, n, role)
	//run Servant mainloop to wait for client connection
	go s.Run(done)
	return s
}
コード例 #23
0
ファイル: svctask.go プロジェクト: G-VAR/router
func (at *ServiceTask) shutdown() {
	svcname := "/App/" + at.name
	//output_intf or send chans
	at.FaultRaiser.Close()
	at.rot.DetachChan(router.StrID(svcname+"/Response"), at.svcRespChan)
	at.rot.DetachChan(router.StrID("/DB/Request"), at.dbReqChan)
	//input_intf or recv chans
	at.rot.DetachChan(router.StrID(svcname+"/Request"), at.svcReqChan)
	at.rot.DetachChan(router.StrID("/Sys/Command"), at.sysCmdChan)
	at.rot.DetachChan(router.StrID("/Fault/Command"+svcname), at.svcCmdChan)
	at.rot.DetachChan(router.StrID("/DB/Response"+svcname), at.dbRespChan)
}
コード例 #24
0
ファイル: svctask.go プロジェクト: G-VAR/router
func (at *ServiceTask) init(r router.Router, sn string, n string, role ServantRole) {
	at.rot = r
	at.name = n
	at.servantName = sn
	at.role = role
	at.random = rand.New(rand.NewSource(time.Now().UnixNano()))
	at.svcRespChan = make(chan string)
	at.dbReqChan = make(chan *DbReq)
	at.svcReqChan = make(chan string)
	at.sysCmdChan = make(chan string)
	at.svcCmdChan = make(chan string)
	at.dbRespChan = make(chan string)
	svcname := "/App/" + at.name
	//output_intf or send chans
	at.FaultRaiser = router.NewFaultRaiser(router.StrID("/Fault/AppService/Exception"), at.rot, at.name)
	at.rot.AttachSendChan(router.StrID("/DB/Request"), at.dbReqChan)
	at.rot.AttachSendChan(router.StrID(svcname+"/Response"), at.svcRespChan)
	//input_intf or recv chans
	at.rot.AttachRecvChan(router.StrID("/Sys/Command"), at.sysCmdChan)
	at.rot.AttachRecvChan(router.StrID("/Fault/Command"+svcname), at.svcCmdChan)
	at.rot.AttachRecvChan(router.StrID("/DB/Response"+svcname), at.dbRespChan)
	at.rot.AttachRecvChan(router.StrID(svcname+"/Request"), at.svcReqChan)
}
コード例 #25
0
ファイル: chatsrv.go プロジェクト: G-VAR/router
func main() {
	l, err := net.Listen("tcp", ":0")
	if err != nil {
		fmt.Println(err)
		return
	}
	fmt.Println(l.Addr().String())

	subjMap := make(map[string]*Subject)

	rot := router.New(router.StrID(), 32, router.BroadcastPolicy /*, "chatsrv", router.ScopeLocal*/)

	//start server mainloop in a separate goroutine, and recv client conn in main goroutine
	go func() {
		//subscribe to remote publications, so learn what subjects are created
		pubChan := make(chan *router.ChanInfoMsg)
		//attach a recv chan with a "chan BindEvent"
		//this recv chan will not be closed when all senders detach
		bindChan := make(chan *router.BindEvent, 1)
		rot.AttachRecvChan(rot.NewSysID(router.PubId, router.ScopeRemote), pubChan, bindChan)
		//stopChan to notify when all people leave a subject
		stopChan := make(chan string, 36)

		for {
			select {
			case idstr := <-stopChan:
				delete(subjMap, idstr)
			case pub := <-pubChan:
				//process recved client publication of subjects
				for _, v := range pub.Info {
					id := v.Id.(*router.StrId) //get the real id type
					subj, ok := subjMap[id.Val]
					if ok {
						continue
					}
					fmt.Printf("add subject: %v\n", id.Val)
					//add a new subject with ScopeRemote, so that msgs are forwarded
					//to peers in connected routers
					id.ScopeVal = router.ScopeRemote
					id.MemberVal = router.MemberLocal
					subj = newSubject()
					subjMap[id.Val] = subj
					//subscribe to new subjects, forward recved msgs to other
					rot.AttachSendChan(id, subj.sendChan)
					rot.AttachRecvChan(id, subj.recvChan)
					//start forwarding
					go func(subjname string) {
						for val := range subj.recvChan {
							fmt.Printf("chatsrv forward: subject[%v], msg[%s]\n", subjname, val)
							subj.sendChan <- val
						}
						stopChan <- subjname
						fmt.Printf("chatsrv stop forwarding for : %v\n", subjname)
					}(id.Val)
				}
			}
		}
	}()

	//keep accepting client conn and connect local router to it
	for {
		conn, err := l.Accept()
		if err != nil {
			fmt.Println(err)
			return
		}
		fmt.Println("one client connect")

		_, err = rot.ConnectRemote(conn, router.JsonMarshaling)
		if err != nil {
			fmt.Println(err)
			return
		}
	}

	//in fact never reach here
	rot.Close()
	l.Close()
}