Golang context.GetContext函數代碼示例

func (s *Server) RegisteAsLocalService(recv interface{}) {
	t := reflect.TypeOf(recv)
	v := reflect.ValueOf(recv)
	numMethod := t.NumMethod()
	sName := v.Type().Name()
	for index := 0; index < numMethod; index++ {
		methodName := t.Method(index).Name
		if handler, ok := v.Method(index).Interface().(func(*sessionService.SimpleSession, map[string]interface{}) map[string]interface{}); ok == true {
			s.handlers[sName+"."+methodName] = handler
			seelog.Infof("<%v> Registe local service<%v>'s method<%v>", context.GetContext().GetServerID(), v.Type().Name(), methodName)
		} else {
			seelog.Warnf("<%v> Registe local service <%v>'s method<%v> error", context.GetContext().GetServerID(), v.Type().Name(), methodName)
		}
	}
}

func main() {

	if len(os.Args) < 3 {
		fmt.Fprintf(os.Stderr, "too few args,args form: <host port>\n")
		os.Exit(1)
	}
	host := os.Args[1]
	port, err := strconv.Atoi(os.Args[2])
	if err != nil {
		fmt.Fprintf(os.Stderr, "invalid port,need integer type,your input port: <port>\n", os.Args[2])
		os.Exit(1)
	}
	ctx := context.GetContext()
	currentServer := make(map[string]interface{})
	currentServer["id"] = "connector-1"
	currentServer["serverType"] = "connector"
	currentServer["host"] = "127.0.0.1"
	currentServer["port"] = 8888
	ctx.CurrentServer = currentServer
	defer seelog.Flush()

	tcp_cnct := tcp_connector.NewTcpConnector(host, port, nil)

	tcp_cnct.RegistNewConnCB(NewConnCB)
	tcp_cnct.RegistNewMsgCB(NewMsgCB)
	tcp_cnct.Start()
	ch := make(chan int)
	<-ch
}

func (ts *TcpSocket) Disconnect() {
	seelog.Debugf("<%v> Disconnect sid<%v>", context.GetContext().GetServerID(), ts.id)
	if ts.status == connector.ST_CLOSED {
		return
	}

	ts.status = connector.ST_CLOSED
	ts.socket.Close()
}

func NewChannelRpcServer() *ChannelRpcServer {
	ctx := context.GetContext()

	coCnct, ok := ctx.GetComponent("coconnector").(*coconnector.CoConnector)
	if ok == false {
		coCnct = coconnector.NewCoConnector(ctx)
	}

	return &ChannelRpcServer{coCnct}
}

func (crs *ChannelRpcServer) PushMessage(args map[string]interface{}, reply interface{}) error {
	route, _ := args["route"].(string)
	msg, ok1 := args["msg"].(map[string]interface{})
	if ok1 == false {
		seelog.Error("Invalid or empty message")
		return errors.New("Invalid or empty message")
	}

	coSess, ok2 := context.GetContext().GetComponent("cosession").(*cosession.CoSession)

	if ok2 == false {
		seelog.Critical("Failed to get component<cosession>")
		os.Exit(1)
	}

	uids, ok3 := args["uids"].([]string)
	if ok3 == false {
		seelog.Error("Failed to get uids")
		return errors.New("Failed to get uids")
	}

	sids := make([]uint32, 0, 16)
	for _, uid := range uids {
		sessions := coSess.GetSessionsByUID(uid)

		if sessions == nil {
			seelog.Warnf("Failed to push message to uid<%v> because of nil sessions", uid)
			continue
		}

		for _, session := range sessions {
			sids = append(sids, session.Id)
		}
	}

	seelog.Debugf("<%v> push messages<%v> to uids<%v> with sessions<%v>", context.GetContext().GetServerID(), msg, uids, sids)

	//XXX:調用coconnector的send方法發送.
	crs.coCnct.Send("", route, msg, sids)
	return nil

}

func NewCoServer() *CoServer {
	ctx := context.GetContext()
	coServ, ok := ctx.GetComponent("coserver").(*CoServer)
	if ok == true {
		return coServ
	}
	serv := server.NewServer()
	coServ = &CoServer{serv}
	seelog.Infof("<%v> component server created", ctx.GetServerID())
	return coServ
}

func NewSessionRpcServer() *SessionRpcServer {
	ctx := context.GetContext()

	sessionService, ok := ctx.GetComponent("cosession").(*cosession.CoSession)

	if ok == false || sessionService == nil {
		sessionService = cosession.NewCoSession()
	}

	return &SessionRpcServer{sessionService}
}

func (srs *SessionRpcServer) Start() {
	ctx := context.GetContext()
	coRpcS, ok := ctx.GetComponent("corpcserver").(*corpcserver.CoRpcServer)

	if ok == false {
		coRpcS = corpcserver.NewCoRpcServer()
	}

	seelog.Infof("frontendserver<%v> SessionRpcServer start,registe service to rpc server", ctx.GetServerID())
	// srs := NewSessionRpcServer()
	coRpcS.RegisteService(srs)
}

/// 創建新的ChannelService,ChannelService管理用戶創建的所有Channel,並代理用戶對Channel的操作,
/// 用戶發送給一個Channel裏所有session的消息會通過rpc調用發送給對應的前端服務器，並通過前端服務
/// 器推送給客戶端.
func NewChannelService() *ChannelService {
	ctx := context.GetContext()

	coRpcClient, ok := ctx.GetComponent("corpcclient").(*corpcclient.CoRpcClient)

	if ok == false {
		coRpcClient = corpcclient.NewCoRpcClient()
	}

	channels := make(map[string]*Channel)

	return &ChannelService{ctx, coRpcClient, channels}
}

func (crs *ChannelRpcServer) Start() {
	ctx := context.GetContext()
	coRpcS, ok := ctx.GetComponent("corpcserver").(*corpcserver.CoRpcServer)

	if ok == false {
		coRpcS = corpcserver.NewCoRpcServer()
	}

	seelog.Info("ChannelRpcServer start,registe service to rpcserver")
	// srs := NewSessionRpcServer()
	coRpcS.RegisteService(crs)

}

func NewCoMonitor() *CoMonitor {
	ctx := context.GetContext()
	coMonitor, ok := ctx.GetComponent("comonitor").(*CoMonitor)
	if ok == true {
		return coMonitor
	}

	mcs := pomelo_admin.NewMonitorConsoleService(ctx)
	coMonitor = &CoMonitor{mcs}
	seelog.Infof("<%v> component CoMonitor created...", ctx.GetServerID())
	ctx.RegisteComponent("comonitor", coMonitor)
	return coMonitor
}

/// 通過session id從前端服務器踢除用戶連接，通過rpc調用前端服務器的同樣操作.
///
/// @param frontendid 前端服務器id
/// @param sid session id
/// @reason 作為踢除用戶連接時發送給用戶端的提示信息.
/// @return 無返回值
func (bss *BackendSessionService) KickBySID(frontendid string, sid uint32, reason string) {
	seelog.Tracef("frontendid<%v>,sid<%v>", frontendid, sid)

	method := "SessionRpcServer.KickBySID"

	args := make([]interface{}, 2)

	args[0] = sid
	args[1] = reason
	if err := bss.rpcCient.RpcCall(frontendid, method, args, nil); err != nil {
		seelog.Errorf("<%v> KickBySID error<%v>", context.GetContext().GetServerID(), err.Error())
	}
}

/// 創建新的SessionService.
///
/// @param opts 指定創建SessionService的選項，選項是name:value的形式
/// @return *SessionService
func NewSessionService(opts map[string]interface{}) *SessionService {
	if nil == opts {
		opts = make(map[string]interface{})
	}
	sessions := make(map[uint32]*Session)
	uidmap := make(map[string][]*Session)

	multibind := opts["multiBind"] != nil && (opts["multiBind"].(string) != "")
	rwMutexS := new(sync.RWMutex)
	rwMutexUM := new(sync.RWMutex)
	seelog.Infof("frontendserver<%v> create sessionservice with opts<%v>", context.GetContext().GetServerID(), opts)
	return &SessionService{sessions, uidmap, multibind, opts, rwMutexS, rwMutexUM}
}

/// 發送消息到groups中的所有用戶.
///
/// @route 路由
/// @param msg 發送的消息
/// @param groups frontendID-> uids的映射
func (cs *ChannelService) sendMsgByGroup(route string, msg map[string]interface{}, groups map[string][]string) {
	seelog.Debugf("<%v> channelService sendMsgByGroup with route<%v> msg<%v> groups<%v>", cs.ctx.GetServerID(), route, msg, groups)

	args := make(map[string]interface{})

	args["route"] = route
	args["msg"] = msg

	coChanRpcS, ok := context.GetContext().GetComponent("cochannelrpcserver").(*cochannelrpcserver.CoChannelRpcServer)
	if ok == false {
		seelog.Error("Fail to get CoChannelRpcServer")
		return
	}

	sendMsg := func(serverid string) {
		if cs.ctx.GetServerID() == serverid {
			//TODO:直接調用channelRpcServer相關方法,無需rpc
			if err := coChanRpcS.PushMessage(args, nil); err != nil {
				seelog.Errorf("Fail to invoke PushMessage to send msg,error<%v>", err.Error())
				return
			}

		} else {
			//TODO:發起rpc調用.
			if err := cs.coRpcClient.RpcCall(serverid, "ChannelRpcServer.PushMessage", args, nil); err != nil {
				seelog.Errorf("<%v> fail to invoke rpc PushMessage error<%v>", context.GetContext().GetServerID(), err.Error())
				return
			}
		}
	}

	for frontendID, uids := range groups {
		//TODO:逐個發送msg.
		seelog.Infof("<%v> PushMessage to uids<%v> connected to frontend<%v>", context.GetContext().GetServerID(), uids, frontendID)
		args["uid"] = uids
		sendMsg(frontendID)
	}
}

func (bss *BackendSessionService) PushAllOpts(frontendid string, sid uint32, settings map[string]interface{}) {
	seelog.Tracef("Push all opts to <%v> with sid<%v>", frontendid, sid)

	args := make(map[string]interface{})

	args["sid"] = sid
	args["settings"] = settings

	method := "SessionRpcServer.PushAllOpts"

	if err := bss.rpcCient.RpcCall(frontendid, method, &args, nil); err != nil {
		seelog.Errorf("<%v> PushAllOpts with sid<%v> to frontend<%v> error<%v>", context.GetContext().GetServerID(), sid, frontendid, err.Error())
	}
}