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Published: Jun 9, 2017 License: BSD-3-Clause Imports: 0 Imported by: 4



Package naming defines the naming API and related data structures for gRPC. The interface is EXPERIMENTAL and may be suject to change.



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type Operation

type Operation uint8

Operation defines the corresponding operations for a name resolution change.

const (
	// Add indicates a new address is added.
	Add Operation = iota
	// Delete indicates an exisiting address is deleted.

type Resolver

type Resolver interface {
	// Resolve creates a Watcher for target.
	Resolve(target string) (Watcher, error)

Resolver creates a Watcher for a target to track its resolution changes.

type Update

type Update struct {
	// Op indicates the operation of the update.
	Op Operation
	// Addr is the updated address. It is empty string if there is no address update.
	Addr string
	// Metadata is the updated metadata. It is nil if there is no metadata update.
	// Metadata is not required for a custom naming implementation.
	Metadata interface{}

Update defines a name resolution update. Notice that it is not valid having both empty string Addr and nil Metadata in an Update.

type Watcher

type Watcher interface {
	// Next blocks until an update or error happens. It may return one or more
	// updates. The first call should get the full set of the results. It should
	// return an error if and only if Watcher cannot recover.
	Next() ([]*Update, error)
	// Close closes the Watcher.

Watcher watches for the updates on the specified target.

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