resolver

Documentation

Index

• func WithByPassResolverCache(ctx context.Context) context.Context
• type CacheResolverConfig
• type Resolver
  • func NewCacheResolver(resolver Resolver, opts *CacheResolverConfig) (Resolver, error)
  • func NewDefaultResolver() Resolver
  • func NewResolver(fn func(context.Context, string) ([]net.IP, error)) Resolver

Functions

func WithByPassResolverCache

func WithByPassResolverCache(ctx context.Context) context.Context

WithByPassResolverCache 设置 Context 绕过 Resolver 内部缓存

Types

type CacheResolverConfig

type CacheResolverConfig struct {
	// 压缩周期（默认：60s）
	CompactInterval time.Duration

	// 持久化路径（默认：$TMPDIR/qiniu-golang-sdk/resolver_01.cache.json）
	PersistentFilePath string

	// 持久化周期（默认：60s）
	PersistentDuration time.Duration

	// 缓存有效期（默认：120s）
	CacheLifetime time.Duration

	// 缓存刷新时间（默认：80s）
	CacheRefreshAfter time.Duration
}

CacheResolverConfig 缓存域名解析器选项

type Resolver

type Resolver interface {
	// Resolve 解析域名的 IP 地址
	Resolve(context.Context, string) ([]net.IP, error)

	// FeedbackGood 反馈一批 IP 地址请求成功
	FeedbackGood(context.Context, string, []net.IP)

	// FeedbackBad 反馈一批 IP 地址请求失败
	FeedbackBad(context.Context, string, []net.IP)
}

Resolver 域名解析器的接口

func NewCacheResolver

func NewCacheResolver(resolver Resolver, opts *CacheResolverConfig) (Resolver, error)

NewCacheResolver 创建带缓存功能的域名解析器

func NewDefaultResolver

func NewDefaultResolver() Resolver

NewDefaultResolver 创建默认的域名解析器

func NewResolver

func NewResolver(fn func(context.Context, string) ([]net.IP, error)) Resolver

NewResolver 创建自定义的域名解析器