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 Go to latest Published: Aug 2, 2022 License: Apache-2.0 Imports: 7 Imported by: 0

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Types

type Event 

type Event struct {
	Type      EventType
	Interface Name
}

Event of a network interface, given the type (added, removed) and the interface name

type EventType 

type EventType int

EventType for an interface: added, deleted 

const (
	EventAdded EventType = iota
	EventDeleted
)

func (EventType) String 

func (e EventType) String() string

type Informer 

type Informer interface {
	// Subscribe returns a channel that sends Event instances.
	Subscribe(ctx context.Context) (<-chan Event, error)
}

Informer provides notifications about each network interface that is added or removed from the host. Production implementations: Poller and Watcher.

type Name 

type Name string

Name of an interface (e.g. eth0)

type Poller 

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

Poller periodically looks for the network interfaces in the system and forwards Event notifications when interfaces are added or deleted.

func NewPoller 

func NewPoller(period time.Duration, bufLen int) *Poller

func (*Poller) Subscribe 

func (np *Poller) Subscribe(ctx context.Context) (<-chan Event, error)

type Watcher 

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

Watcher uses system's netlink to get real-time information events about network interfaces' addition or removal.

func NewWatcher 

func NewWatcher(bufLen int) *Watcher

func (*Watcher) Subscribe 

func (w *Watcher) Subscribe(ctx context.Context) (<-chan Event, error)

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