diff options
Diffstat (limited to 'vendor/google.golang.org/grpc/resolver/resolver.go')
| -rw-r--r-- | vendor/google.golang.org/grpc/resolver/resolver.go | 76 |
1 files changed, 31 insertions, 45 deletions
diff --git a/vendor/google.golang.org/grpc/resolver/resolver.go b/vendor/google.golang.org/grpc/resolver/resolver.go index d8db6f5d3..11384e228 100644 --- a/vendor/google.golang.org/grpc/resolver/resolver.go +++ b/vendor/google.golang.org/grpc/resolver/resolver.go @@ -77,25 +77,6 @@ func GetDefaultScheme() string { return defaultScheme } -// AddressType indicates the address type returned by name resolution. -// -// Deprecated: use Attributes in Address instead. -type AddressType uint8 - -const ( - // Backend indicates the address is for a backend server. - // - // Deprecated: use Attributes in Address instead. - Backend AddressType = iota - // GRPCLB indicates the address is for a grpclb load balancer. - // - // Deprecated: to select the GRPCLB load balancing policy, use a service - // config with a corresponding loadBalancingConfig. To supply balancer - // addresses to the GRPCLB load balancing policy, set State.Attributes - // using balancer/grpclb/state.Set. - GRPCLB -) - // Address represents a server the client connects to. // // # Experimental @@ -111,9 +92,6 @@ type Address struct { // the address, instead of the hostname from the Dial target string. In most cases, // this should not be set. // - // If Type is GRPCLB, ServerName should be the name of the remote load - // balancer, not the name of the backend. - // // WARNING: ServerName must only be populated with trusted values. It // is insecure to populate it with data from untrusted inputs since untrusted // values could be used to bypass the authority checks performed by TLS. @@ -126,18 +104,16 @@ type Address struct { // BalancerAttributes contains arbitrary data about this address intended // for consumption by the LB policy. These attributes do not affect SubConn // creation, connection establishment, handshaking, etc. - BalancerAttributes *attributes.Attributes - - // Type is the type of this address. // - // Deprecated: use Attributes instead. - Type AddressType + // Deprecated: when an Address is inside an Endpoint, this field should not + // be used, and it will eventually be removed entirely. + BalancerAttributes *attributes.Attributes // Metadata is the information associated with Addr, which may be used // to make load balancing decision. // // Deprecated: use Attributes instead. - Metadata interface{} + Metadata any } // Equal returns whether a and o are identical. Metadata is compared directly, @@ -150,7 +126,7 @@ func (a Address) Equal(o Address) bool { return a.Addr == o.Addr && a.ServerName == o.ServerName && a.Attributes.Equal(o.Attributes) && a.BalancerAttributes.Equal(o.BalancerAttributes) && - a.Type == o.Type && a.Metadata == o.Metadata + a.Metadata == o.Metadata } // String returns JSON formatted string representation of the address. @@ -194,11 +170,37 @@ type BuildOptions struct { Dialer func(context.Context, string) (net.Conn, error) } +// An Endpoint is one network endpoint, or server, which may have multiple +// addresses with which it can be accessed. +type Endpoint struct { + // Addresses contains a list of addresses used to access this endpoint. + Addresses []Address + + // Attributes contains arbitrary data about this endpoint intended for + // consumption by the LB policy. + Attributes *attributes.Attributes +} + // State contains the current Resolver state relevant to the ClientConn. type State struct { // Addresses is the latest set of resolved addresses for the target. + // + // If a resolver sets Addresses but does not set Endpoints, one Endpoint + // will be created for each Address before the State is passed to the LB + // policy. The BalancerAttributes of each entry in Addresses will be set + // in Endpoints.Attributes, and be cleared in the Endpoint's Address's + // BalancerAttributes. + // + // Soon, Addresses will be deprecated and replaced fully by Endpoints. Addresses []Address + // Endpoints is the latest set of resolved endpoints for the target. + // + // If a resolver produces a State containing Endpoints but not Addresses, + // it must take care to ensure the LB policies it selects will support + // Endpoints. + Endpoints []Endpoint + // ServiceConfig contains the result from parsing the latest service // config. If it is nil, it indicates no service config is present or the // resolver does not provide service configs. @@ -258,15 +260,6 @@ type ClientConn interface { // target does not contain a scheme or if the parsed scheme is not registered // (i.e. no corresponding resolver available to resolve the endpoint), we will // apply the default scheme, and will attempt to reparse it. -// -// Examples: -// -// - "dns://some_authority/foo.bar" -// Target{Scheme: "dns", Authority: "some_authority", Endpoint: "foo.bar"} -// - "foo.bar" -// Target{Scheme: resolver.GetDefaultScheme(), Endpoint: "foo.bar"} -// - "unknown_scheme://authority/endpoint" -// Target{Scheme: resolver.GetDefaultScheme(), Endpoint: "unknown_scheme://authority/endpoint"} type Target struct { // URL contains the parsed dial target with an optional default scheme added // to it if the original dial target contained no scheme or contained an @@ -321,10 +314,3 @@ type Resolver interface { // Close closes the resolver. Close() } - -// UnregisterForTesting removes the resolver builder with the given scheme from the -// resolver map. -// This function is for testing only. -func UnregisterForTesting(scheme string) { - delete(m, scheme) -} |