balancer

Documentation

Index

• func IsOkConnection(c conn.Conn, bannedIsOk bool) bool
• type Balancer
• type Element

Functions

func IsOkConnection

func IsOkConnection(c conn.Conn, bannedIsOk bool) bool

Types

type Balancer

type Balancer interface {
	// Next returns next connection for request.
	// return Err
	Next(ctx context.Context, allowBanned bool) conn.Conn

	// Create makes empty balancer with same implementation
	Create(conns []conn.Conn) Balancer

	// NeedRefresh ctx used to timeout
	// is must cancel by caller for prevent goroutine leak
	// without ctx NeedRefresh can return never.
	NeedRefresh(ctx context.Context) bool
}

Balancer is an interface that implements particular load-balancing algorithm.

Balancer methods called synchronized. That is, implementations must not provide additional goroutine safety.

type Element

type Element interface{}

Element is an empty interface that holds some Balancer specific data.