remoting

package
v3.0.0 Latest Latest
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 Go to latest Published: Dec 7, 2021 License: Apache-2.0 Imports: 9 Imported by: 24

Documentation

Index

Constants

View Source 
const (
	// EventTypeAdd means add event
	EventTypeAdd = iota
	// EventTypeDel means del event
	EventTypeDel
	// EventTypeUpdate means update event
	EventTypeUpdate
)

Variables

This section is empty.

Functions

func AddPendingResponse 

func AddPendingResponse(pr *PendingResponse)

store response into map

func RegistryCodec 

func RegistryCodec(protocol string, codecTmp Codec)

func SequenceID 

func SequenceID() int64

Types

type AsyncCallbackResponse 

type AsyncCallbackResponse struct {
	common.CallbackResponse
	Opts      Options
	Cause     error
	Start     time.Time // invoke(call) start time == write start time
	ReadStart time.Time // read start time, write duration = ReadStart - Start
	Reply     interface{}
}

AsyncCallbackResponse async response for dubbo

type Client 

type Client interface {
	SetExchangeClient(client *ExchangeClient)
	// connect url
	Connect(url *common.URL) error
	// close
	Close()
	// send request to server.
	Request(request *Request, timeout time.Duration, response *PendingResponse) error
	// check if the client is still available
	IsAvailable() bool
}

It is interface of client for network communication. If you use getty as network communication, you should define GettyClient that implements this interface.

type Codec 

type Codec interface {
	EncodeRequest(request *Request) (*bytes.Buffer, error)
	EncodeResponse(response *Response) (*bytes.Buffer, error)
	Decode(data []byte) (DecodeResult, int, error)
}

codec for exchangeClient

func GetCodec 

func GetCodec(protocol string) Codec

type DataListener 

type DataListener interface {
	DataChange(eventType Event) bool // bool is return for interface implement is interesting
}

DataListener defines common data listener interface

type DecodeResult 

type DecodeResult struct {
	// IsRequest indicates whether the current request is a heartbeat request
	IsRequest bool
	Result    interface{}
}

type Event 

type Event struct {
	Path    string
	Action  EventType
	Content string
}

Event defines common elements for service event

func (Event) String 

func (e Event) String() string

nolint

type EventType 

type EventType int

EventType means SourceObjectEventType

func (EventType) String 

func (t EventType) String() string

nolint

type ExchangeClient 

type ExchangeClient struct {
	// connect server timeout
	ConnectTimeout time.Duration
	// contains filtered or unexported fields
}

This is abstraction level. it is like facade.

func NewExchangeClient 

func NewExchangeClient(url *common.URL, client Client, connectTimeout time.Duration, lazyInit bool) *ExchangeClient

create ExchangeClient

func (*ExchangeClient) AsyncRequest 

func (client *ExchangeClient) AsyncRequest(invocation *protocol.Invocation, url *common.URL, timeout time.Duration,
	callback common.AsyncCallback, result *protocol.RPCResult) error

async two way request

func (*ExchangeClient) Close 

func (client *ExchangeClient) Close()

close client

func (*ExchangeClient) DecreaseActiveNumber 

func (client *ExchangeClient) DecreaseActiveNumber() uint32

decrease number of service using client

func (*ExchangeClient) GetActiveNumber 

func (client *ExchangeClient) GetActiveNumber() uint32

get number of service using client

func (*ExchangeClient) IncreaseActiveNumber 

func (client *ExchangeClient) IncreaseActiveNumber() uint32

increase number of service using client

func (*ExchangeClient) IsAvailable 

func (client *ExchangeClient) IsAvailable() bool

IsAvailable to check if the underlying network client is available yet.

func (*ExchangeClient) Request 

func (client *ExchangeClient) Request(invocation *protocol.Invocation, url *common.URL, timeout time.Duration,
	result *protocol.RPCResult) error

two way request

func (*ExchangeClient) Send 

func (client *ExchangeClient) Send(invocation *protocol.Invocation, url *common.URL, timeout time.Duration) error

oneway request

type ExchangeServer 

type ExchangeServer struct {
	Server Server
	URL    *common.URL
}

This is abstraction level. it is like facade.

func NewExchangeServer 

func NewExchangeServer(url *common.URL, server Server) *ExchangeServer

Create ExchangeServer

func (*ExchangeServer) Start 

func (server *ExchangeServer) Start()

start server

func (*ExchangeServer) Stop 

func (server *ExchangeServer) Stop()

stop server

type Options 

type Options struct {
	// connect timeout
	ConnectTimeout time.Duration
}

type PendingResponse 

type PendingResponse struct {
	Err error

	ReadStart time.Time
	Callback  common.AsyncCallback

	Reply interface{}
	Done  chan struct{}
	// contains filtered or unexported fields
}

the client sends request to server, there is one pendingResponse at client side to wait the response from server

func GetPendingResponse 

func GetPendingResponse(seq SequenceType) *PendingResponse

get response

func NewPendingResponse 

func NewPendingResponse(id int64) *PendingResponse

NewPendingResponse aims to create PendingResponse. ID is always from ID of Request

func (PendingResponse) GetCallResponse 

func (r PendingResponse) GetCallResponse() common.CallbackResponse

GetCallResponse is used for callback of async. It is will return AsyncCallbackResponse.

func (*PendingResponse) SetResponse 

func (r *PendingResponse) SetResponse(response *Response)

type Request 

type Request struct {
	ID int64
	// protocol version
	Version string
	// serial ID (ignore)
	SerialID byte
	// Data
	Data   interface{}
	TwoWay bool
	Event  bool
}

this is request for transport layer

func NewRequest 

func NewRequest(version string) *Request

NewRequest aims to create Request. The ID is auto increase.

type Response 

type Response struct {
	ID       int64
	Version  string
	SerialID byte
	Status   uint8
	Event    bool
	Error    error
	Result   interface{}
}

this is response for transport layer

func NewResponse 

func NewResponse(id int64, version string) *Response

NewResponse create to a new Response.

func (*Response) Handle 

func (response *Response) Handle()

func (*Response) IsHeartbeat 

func (response *Response) IsHeartbeat() bool

the response is heartbeat

func (*Response) String 

func (response *Response) String() string

type SequenceType 

type SequenceType int64

type Server 

type Server interface {
	// invoke once for connection
	Start()
	// it is for destroy
	Stop()
}

It is interface of server for network communication. If you use getty as network communication, you should define GettyServer that implements this interface.

Source Files

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Directories

Path Synopsis
curator_discovery

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