transport

package
v0.2.33 Latest Latest
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 Go to latest Published: Aug 18, 2024 License: LGPL-2.1 Imports: 16 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrUnexpectedSeq = errors.New("gtp: unexpected sequence") // 收到非预期的消息序号，表示序号不连续
	ErrDiscardSeq    = errors.New("gtp: discard sequence")    // 收到已过期的消息序号，表示次消息已收到过
)
View Source 
var (
	ErrTrans            = errors.New("gtp: trans")      // 传输错误
	ErrNetIO            = errors.New("gtp: net i/o")    // 网络io错误
	ErrRenew            = errors.New("gtp: renew conn") // 刷新链路错误
	ErrDeadlineExceeded = os.ErrDeadlineExceeded        // 网络io超时
	ErrClosed           = os.ErrClosed                  // 网络链路已关闭
	ErrShortBuffer      = io.ErrShortBuffer             // 缓冲区不足
	ErrShortWrite       = io.ErrShortWrite              // 短写
	ErrUnexpectedEOF    = io.ErrUnexpectedEOF           // 非预期的io结束
	EOF                 = io.EOF                        // io结束
)
View Source 
var (
	ErrUnexpectedMsg = errors.New("gtp: unexpected msg") // 收到非预期的消息
)

Functions

This section is empty.

Types

type AuthAccept 

type AuthAccept = generic.Func1[Event[gtp.MsgAuth], error] // 服务端确认客户端Auth请求

type ChangeCipherSpecAccept 

type ChangeCipherSpecAccept = generic.PairFunc1[Event[gtp.MsgChangeCipherSpec], Event[gtp.MsgChangeCipherSpec], error] // 客户端确认服务端ChangeCipherSpec请求

type ChangeCipherSpecFin 

type ChangeCipherSpecFin = generic.Func1[Event[gtp.MsgChangeCipherSpec], error] // 服务端获取客户端ChangeCipherSpec响应

type ContinueAccept 

type ContinueAccept = generic.Func1[Event[gtp.MsgContinue], error] // 服务端确认客户端Continue请求

type CtrlProtocol 

type CtrlProtocol struct {
	Transceiver      *Transceiver     // 消息事件收发器
	RetryTimes       int              // 网络io超时时的重试次数
	RstHandler       RstHandler       // Rst消息事件处理器
	SyncTimeHandler  SyncTimeHandler  // SyncTime消息事件处理器
	HeartbeatHandler HeartbeatHandler // Heartbeat消息事件处理器
}

CtrlProtocol 控制协议

func (*CtrlProtocol) HandleEvent 

func (c *CtrlProtocol) HandleEvent(e IEvent) error

HandleEvent 消息事件处理器

func (*CtrlProtocol) RequestTime 

func (c *CtrlProtocol) RequestTime(corrId int64) error

RequestTime 请求同步时间

func (*CtrlProtocol) SendPing 

func (c *CtrlProtocol) SendPing() error

SendPing 发送ping

func (*CtrlProtocol) SendRst 

func (c *CtrlProtocol) SendRst(err error) error

SendRst 发送Rst消息事件

type ECDHESecretKeyExchangeFin 

type ECDHESecretKeyExchangeFin = generic.PairFunc1[Event[gtp.MsgECDHESecretKeyExchange], Event[gtp.MsgChangeCipherSpec], error] // 服务端获取客户端ECDHESecretKeyExchange响应

type ErrorHandler 

type ErrorHandler = generic.DelegateAction1[error] // 错误处理器

type Event 

type Event[T gtp.MsgReader] struct {
	Flags gtp.Flags // 标志位
	Seq   uint32    // 消息序号
	Ack   uint32    // 应答序号
	Msg   T         // 消息
}

Event 消息事件

func EventT added in v0.1.93 

func EventT[T gtp.MsgReader](e IEvent) Event[T]

EventT 特化事件，转换为事件具体类型

func (Event[T]) Interface added in v0.1.93 

func (e Event[T]) Interface() IEvent

Interface 泛化事件，转换为事件接口

type EventDispatcher 

type EventDispatcher struct {
	Transceiver  *Transceiver // 消息事件收发器
	RetryTimes   int          // 网络io超时时的重试次数
	EventHandler EventHandler // 消息事件处理器列表
}

EventDispatcher 消息事件分发器

func (*EventDispatcher) Dispatching 

func (d *EventDispatcher) Dispatching(ctx context.Context) error

Dispatching 分发事件

func (*EventDispatcher) Run 

func (d *EventDispatcher) Run(ctx context.Context, errorHandler ...ErrorHandler)

Run 运行

type EventHandler 

type EventHandler = generic.DelegateFunc1[IEvent, error] // 消息事件处理器

type FinishedAccept 

type FinishedAccept = generic.Func1[Event[gtp.MsgFinished], error] // 客户端确认服务端Finished请求

type HandshakeProtocol 

type HandshakeProtocol struct {
	Transceiver *Transceiver // 消息事件收发器
	RetryTimes  int          // 网络io超时时的重试次数
}

HandshakeProtocol 握手协议

func (*HandshakeProtocol) ClientAuth 

func (h *HandshakeProtocol) ClientAuth(ctx context.Context, auth Event[gtp.MsgAuth]) (err error)

ClientAuth 客户端发起鉴权

func (*HandshakeProtocol) ClientContinue 

func (h *HandshakeProtocol) ClientContinue(ctx context.Context, cont Event[gtp.MsgContinue]) (err error)

ClientContinue 客户端发起重连

func (*HandshakeProtocol) ClientFinished 

func (h *HandshakeProtocol) ClientFinished(ctx context.Context, finishedAccept FinishedAccept) (err error)

ClientFinished 客户端握手结束

func (*HandshakeProtocol) ClientHello 

func (h *HandshakeProtocol) ClientHello(ctx context.Context, hello Event[gtp.MsgHello], helloFin HelloFin) (err error)

ClientHello 客户端Hello

func (*HandshakeProtocol) ClientSecretKeyExchange 

func (h *HandshakeProtocol) ClientSecretKeyExchange(ctx context.Context, secretKeyExchangeAccept SecretKeyExchangeAccept, changeCipherSpecAccept ChangeCipherSpecAccept) (err error)

ClientSecretKeyExchange 客户端交换秘钥

func (*HandshakeProtocol) ServerAuth 

func (h *HandshakeProtocol) ServerAuth(ctx context.Context, authAccept AuthAccept) (err error)

ServerAuth 服务端验证鉴权

func (*HandshakeProtocol) ServerContinue 

func (h *HandshakeProtocol) ServerContinue(ctx context.Context, continueAccept ContinueAccept) (err error)

ServerContinue 服务端处理重连

func (*HandshakeProtocol) ServerECDHESecretKeyExchange 

func (h *HandshakeProtocol) ServerECDHESecretKeyExchange(ctx context.Context, secretKeyExchange Event[gtp.MsgECDHESecretKeyExchange], secretKeyExchangeFin ECDHESecretKeyExchangeFin, changeCipherSpecFin ChangeCipherSpecFin) (err error)

ServerECDHESecretKeyExchange 服务端交换秘钥（ECDHE）

func (*HandshakeProtocol) ServerFinished 

func (h *HandshakeProtocol) ServerFinished(ctx context.Context, finished Event[gtp.MsgFinished]) (err error)

ServerFinished 服务端握手结束

func (*HandshakeProtocol) ServerHello 

func (h *HandshakeProtocol) ServerHello(ctx context.Context, helloAccept HelloAccept) (err error)

ServerHello 服务端Hello

type HeartbeatHandler 

type HeartbeatHandler = generic.DelegateFunc1[Event[gtp.MsgHeartbeat], error] // Heartbeat消息事件处理器

type HelloAccept 

type HelloAccept = generic.PairFunc1[Event[gtp.MsgHello], Event[gtp.MsgHello], error] // 服务端确认客户端Hello请求

type HelloFin 

type HelloFin = generic.Func1[Event[gtp.MsgHello], error] // 客户端获取服务端Hello响应

type IEvent added in v0.1.93 

type IEvent = Event[gtp.MsgReader]

IEvent 消息事件接口

type ISynchronizer 

type ISynchronizer interface {
	io.Writer
	io.WriterTo
	codec.IValidate
	// Synchronization 同步对端时序，对齐缓存序号
	Synchronization(remoteRecvSeq uint32) error
	// Ack 确认消息序号
	Ack(ack uint32)
	// SendSeq 发送消息序号
	SendSeq() uint32
	// RecvSeq 接收消息序号
	RecvSeq() uint32
	// AckSeq 当前ack序号
	AckSeq() uint32
	// Cap 缓存区容量
	Cap() int
	// Cached 已缓存大小
	Cached() int
	// Clean 清理
	Clean()
}

ISynchronizer 同步器

func NewSequencedSynchronizer 

func NewSequencedSynchronizer(sendSeq, recvSeq uint32, cap int) ISynchronizer

NewSequencedSynchronizer 创建有时序同步器，支持缓存已发送的消息，在断连重连时同步时序并补发消息

func NewUnsequencedSynchronizer 

func NewUnsequencedSynchronizer() ISynchronizer

NewUnsequencedSynchronizer 创建无时序同步器，不支持断连重连时同步时序

type PayloadHandler 

type PayloadHandler = generic.DelegateFunc1[Event[gtp.MsgPayload], error] // Payload消息事件处理器

type Retry 

type Retry struct {
	Transceiver *Transceiver
	Times       int
	Ctx         context.Context
}

Retry 网络io超时时重试

func (Retry) Recv 

func (r Retry) Recv(e IEvent, err error) (IEvent, error)

Recv 重试接收

func (Retry) Send 

func (r Retry) Send(err error) error

Send 重试发送

type RstError 

type RstError struct {
	Code    gtp.Code // 错误码
	Message string   // 错误信息
}

RstError Rst错误提示

func CastRstErr 

func CastRstErr(e Event[gtp.MsgRst]) *RstError

CastRstErr Rst错误事件转换为错误提示

func (RstError) Error 

func (err RstError) Error() string

Error 错误信息

func (RstError) ToEvent added in v0.1.96 

func (err RstError) ToEvent() Event[gtp.MsgRst]

ToEvent 转换为消息事件

type RstHandler 

type RstHandler = generic.DelegateFunc1[Event[gtp.MsgRst], error] // Rst消息事件处理器

type SecretKeyExchangeAccept 

type SecretKeyExchangeAccept = generic.PairFunc1[IEvent, IEvent, error] // 客户端确认服务端SecretKeyExchange请求，需要自己判断消息Id并处理，用于支持多种秘钥交换函数

type SequencedSynchronizer 

type SequencedSynchronizer struct {
	// contains filtered or unexported fields
}

SequencedSynchronizer 有时序同步器，支持缓存已发送的消息，在断连重连时同步时序并补发消息

func (*SequencedSynchronizer) Ack 

func (s *SequencedSynchronizer) Ack(ack uint32)

Ack 确认消息序号

func (*SequencedSynchronizer) AckSeq 

func (s *SequencedSynchronizer) AckSeq() uint32

AckSeq 当前ack序号

func (*SequencedSynchronizer) Cached 

func (s *SequencedSynchronizer) Cached() int

Cached 已缓存大小

func (*SequencedSynchronizer) Cap 

func (s *SequencedSynchronizer) Cap() int

Cap 缓存区容量

func (*SequencedSynchronizer) Clean 

func (s *SequencedSynchronizer) Clean()

Clean 清理

func (*SequencedSynchronizer) RecvSeq 

func (s *SequencedSynchronizer) RecvSeq() uint32

RecvSeq 接收消息序号

func (*SequencedSynchronizer) Reset 

func (s *SequencedSynchronizer) Reset(sendSeq, recvSeq uint32, cap int)

Reset 重置缓存

func (*SequencedSynchronizer) SendSeq 

func (s *SequencedSynchronizer) SendSeq() uint32

SendSeq 发送消息序号

func (*SequencedSynchronizer) Synchronization 

func (s *SequencedSynchronizer) Synchronization(remoteRecvSeq uint32) error

Synchronization 同步对端时序，对齐缓存序号

func (*SequencedSynchronizer) Validate 

func (s *SequencedSynchronizer) Validate(msgHead gtp.MsgHead, msgBuf []byte) error

Validate 验证消息包

func (*SequencedSynchronizer) Write 

func (s *SequencedSynchronizer) Write(p []byte) (n int, err error)

Write implements io.Writer

func (*SequencedSynchronizer) WriteTo 

func (s *SequencedSynchronizer) WriteTo(w io.Writer) (int64, error)

WriteTo implements io.WriteTo

type SyncTimeHandler 

type SyncTimeHandler = generic.DelegateFunc1[Event[gtp.MsgSyncTime], error] // SyncTime消息事件处理器

type TransProtocol 

type TransProtocol struct {
	Transceiver    *Transceiver   // 消息事件收发器
	RetryTimes     int            // 网络io超时时的重试次数
	PayloadHandler PayloadHandler // Payload消息事件处理器
}

TransProtocol 传输协议

func (*TransProtocol) HandleEvent 

func (t *TransProtocol) HandleEvent(e IEvent) error

HandleEvent 消息事件处理器

func (*TransProtocol) SendData 

func (t *TransProtocol) SendData(data []byte) error

SendData 发送数据

type Transceiver 

type Transceiver struct {
	Conn         net.Conn       // 网络连接
	Encoder      codec.IEncoder // 消息包编码器
	Decoder      codec.IDecoder // 消息包解码器
	Timeout      time.Duration  // 网络io超时时间
	Synchronizer ISynchronizer  // 同步器
	// contains filtered or unexported fields
}

Transceiver 消息事件收发器，线程安全

func (*Transceiver) Clean 

func (t *Transceiver) Clean()

Clean 清理

func (*Transceiver) Continue 

func (t *Transceiver) Continue()

Continue 继续收发消息

func (*Transceiver) GC 

func (t *Transceiver) GC()

GC GC

func (*Transceiver) Pause 

func (t *Transceiver) Pause()

Pause 暂停收发消息

func (*Transceiver) Recv 

func (t *Transceiver) Recv(ctx context.Context) (IEvent, error)

Recv 接收消息事件

func (*Transceiver) Renew 

func (t *Transceiver) Renew(conn net.Conn, remoteRecvSeq uint32) (sendReq, recvReq uint32, err error)

Renew 刷新链路

func (*Transceiver) Resend 

func (t *Transceiver) Resend() error

Resend 重新发送未完整发送的消息事件

func (*Transceiver) Send 

func (t *Transceiver) Send(e IEvent) error

Send 发送消息

func (*Transceiver) SendRst 

func (t *Transceiver) SendRst(err error) error

SendRst 发送Rst消息事件

type UnsequencedSynchronizer 

type UnsequencedSynchronizer struct {
	bytes.Buffer
}

UnsequencedSynchronizer 无时序同步器，不支持断连重连时补发消息

func (*UnsequencedSynchronizer) Ack 

func (s *UnsequencedSynchronizer) Ack(ack uint32)

Ack 确认消息序号

func (*UnsequencedSynchronizer) AckSeq 

func (s *UnsequencedSynchronizer) AckSeq() uint32

AckSeq 当前ack序号

func (*UnsequencedSynchronizer) Cached 

func (s *UnsequencedSynchronizer) Cached() int

Cached 已缓存大小

func (*UnsequencedSynchronizer) Clean 

func (s *UnsequencedSynchronizer) Clean()

Clean 清理

func (*UnsequencedSynchronizer) RecvSeq 

func (s *UnsequencedSynchronizer) RecvSeq() uint32

RecvSeq 接收消息序号

func (*UnsequencedSynchronizer) SendSeq 

func (s *UnsequencedSynchronizer) SendSeq() uint32

SendSeq 发送消息序号

func (*UnsequencedSynchronizer) Synchronization 

func (s *UnsequencedSynchronizer) Synchronization(remoteRecvSeq uint32) error

Synchronization 同步对端时序，对齐缓存序号

func (*UnsequencedSynchronizer) Validate 

func (s *UnsequencedSynchronizer) Validate(msgHead gtp.MsgHead, msgBuf []byte) error

Validate 验证消息包

func (*UnsequencedSynchronizer) WriteTo 

func (s *UnsequencedSynchronizer) WriteTo(w io.Writer) (int64, error)

WriteTo implements io.WriteTo

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