diff options
Diffstat (limited to 'vendor/google.golang.org/grpc/resolver/resolver.go')
| -rw-r--r-- | vendor/google.golang.org/grpc/resolver/resolver.go | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/vendor/google.golang.org/grpc/resolver/resolver.go b/vendor/google.golang.org/grpc/resolver/resolver.go index 202854511..8eb1cf3bc 100644 --- a/vendor/google.golang.org/grpc/resolver/resolver.go +++ b/vendor/google.golang.org/grpc/resolver/resolver.go @@ -22,6 +22,7 @@ package resolver import ( "context" + "errors" "fmt" "net" "net/url" @@ -237,8 +238,8 @@ type ClientConn interface { // UpdateState can be omitted. UpdateState(State) error // ReportError notifies the ClientConn that the Resolver encountered an - // error. The ClientConn will notify the load balancer and begin calling - // ResolveNow on the Resolver with exponential backoff. + // error. The ClientConn then forwards this error to the load balancing + // policy. ReportError(error) // NewAddress is called by resolver to notify ClientConn a new list // of resolved addresses. @@ -330,3 +331,20 @@ type AuthorityOverrider interface { // typically in line, and must keep it unchanged. OverrideAuthority(Target) string } + +// ValidateEndpoints validates endpoints from a petiole policy's perspective. +// Petiole policies should call this before calling into their children. See +// [gRPC A61](https://github.com/grpc/proposal/blob/master/A61-IPv4-IPv6-dualstack-backends.md) +// for details. +func ValidateEndpoints(endpoints []Endpoint) error { + if len(endpoints) == 0 { + return errors.New("endpoints list is empty") + } + + for _, endpoint := range endpoints { + for range endpoint.Addresses { + return nil + } + } + return errors.New("endpoints list contains no addresses") +} |