sys

Documentation

Overview

共享订阅

系统主题

共享订阅

Index

• Constants
• Variables
• func NewMemProvider() *memTopics
• func Register(name string, provider SysTopicsProvider)
• func SysTopicInit()
• func Unregister(name string)
• type Manager
  • func NewManager(providerName string) (*Manager, error)
  • func (this *Manager) Close() error
  • func (this *Manager) Retain(msg *messagev5.PublishMessage) error
  • func (this *Manager) Retained(topic []byte, msgs *[]*messagev5.PublishMessage) error
  • func (this *Manager) Subscribe(topic []byte, qos byte, subscriber interface{}) (byte, error)
  • func (this *Manager) Subscribers(topic []byte, qos byte, subs *[]interface{}, qoss *[]byte) error
  • func (this *Manager) Unsubscribe(topic []byte, subscriber interface{}) error
• type SysTopicsProvider

Constants

const (
	// MWC is the multi-level wildcard
	MWC = "#"

	// SWC is the single level wildcard
	SWC = "+"

	// SEP is the topic level separator
	SEP = "/"

	// SYS is the starting character of the system level topics
	//SYS是系统级主题的起始字符
	SYS = "$"
)

Variables

var (
	// ErrAuthFailure is returned when the user/pass supplied are invalid
	ErrAuthFailure = errors.New("auth: Authentication failure")

	// ErrAuthProviderNotFound is returned when the requested provider does not exist.
	// It probably hasn't been registered yet.
	ErrAuthProviderNotFound = errors.New("auth: Authentication provider not found")
)

var Default = "default"

var (
	// MaxQosAllowed is the maximum QOS supported by this server
	MaxQosAllowed_redis = messagev5.QosExactlyOnce
)

Functions

func NewMemProvider

func NewMemProvider() *memTopics

NewMemProvider returns an new instance of the memTopics, which is implements the TopicsProvider interface. memProvider is a hidden struct that stores the topic subscriptions and retained messages in memory. The content is not persistend so when the server goes, everything will be gone. Use with care.

func Register

func Register(name string, provider SysTopicsProvider)

func SysTopicInit

func SysTopicInit()

func Unregister

func Unregister(name string)

Types

type Manager

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

func NewManager

func NewManager(providerName string) (*Manager, error)

func (*Manager) Close

func (this *Manager) Close() error

func (*Manager) Retain

func (this *Manager) Retain(msg *messagev5.PublishMessage) error

func (*Manager) Retained

func (this *Manager) Retained(topic []byte, msgs *[]*messagev5.PublishMessage) error

func (*Manager) Subscribe

func (this *Manager) Subscribe(topic []byte, qos byte, subscriber interface{}) (byte, error)

func (*Manager) Subscribers

func (this *Manager) Subscribers(topic []byte, qos byte, subs *[]interface{}, qoss *[]byte) error

func (*Manager) Unsubscribe

func (this *Manager) Unsubscribe(topic []byte, subscriber interface{}) error

type SysTopicsProvider

type SysTopicsProvider interface {
	Subscribe(topic []byte, qos byte, subscriber interface{}) (byte, error)
	Unsubscribe(topic []byte, subscriber interface{}) error
	Subscribers(topic []byte, qos byte, subs *[]interface{}, qoss *[]byte) error
	Retain(msg *messagev5.PublishMessage) error
	Retained(topic []byte, msgs *[]*messagev5.PublishMessage) error
	Close() error
}

TopicsProvider